Merge branch 'for-next' of git://git.linaro.org/people/triad/linux-pinctrl

* 'for-next' of git://git.linaro.org/people/triad/linux-pinctrl: pinctrl/sirf: fix sirfsoc_get_group_pins prototype pinctrl: Don't copy function name when requesting a pin pinctrl: Don't copy pin names when registering them pinctrl: Remove unsafe __refdata pinctrl: get_group_pins() const fixes pinctrl: add a driver for the CSR SiRFprimaII pinmux pinctrl: add a driver for the U300 pinmux drivers: create a pin control subsystem
author: Linus Torvalds 2011-10-25 14:04:01 +0200
committer: Linus Torvalds 2011-10-25 14:04:01 +0200
commit: c9d6329c35869ebf2ff88a5831e8073d3365e8bd (patch)
tree: 735df8ad43f404ca031dd2cf2040d74538958b47 /drivers
parent: 4e7e2a2008f5d8c49791c412849d5b0232d39bb3 (diff)
parent: ad7761ab3adc03fbf2cca8e3c84344175d876c40 (diff)
10 files changed, 4311 insertions, 0 deletions
diff --git a/drivers/Kconfig b/drivers/Kconfig
index 95b9e7eefadc..e73aaaee0138 100644
--- a/drivers/Kconfig
+++ b/drivers/Kconfig
@@ -56,6 +56,8 @@ source "drivers/pps/Kconfig"
 
 source "drivers/ptp/Kconfig"
 
+source "drivers/pinctrl/Kconfig"
+
 source "drivers/gpio/Kconfig"
 
 source "drivers/w1/Kconfig"
diff --git a/drivers/Makefile b/drivers/Makefile
index 7fa433a7030c..e7afb3acbc67 100644
--- a/drivers/Makefile
+++ b/drivers/Makefile
@@ -5,6 +5,8 @@
 # Rewritten to use lists instead of if-statements.
 #
 
+# GPIO must come after pinctrl as gpios may need to mux pins etc
+obj-y				+= pinctrl/
 obj-y				+= gpio/
 obj-$(CONFIG_PCI)		+= pci/
 obj-$(CONFIG_PARISC)		+= parisc/
diff --git a/drivers/pinctrl/Kconfig b/drivers/pinctrl/Kconfig
new file mode 100644
index 000000000000..ef566443f945
--- /dev/null
+++ b/drivers/pinctrl/Kconfig
@@ -0,0 +1,43 @@
+#
+# PINCTRL infrastructure and drivers
+#
+
+menuconfig PINCTRL
+	bool "PINCTRL Support"
+	depends on EXPERIMENTAL
+	help
+	  This enables the PINCTRL subsystem for controlling pins
+	  on chip packages, for example multiplexing pins on primarily
+	  PGA and BGA packages for systems on chip.
+
+	  If unsure, say N.
+
+if PINCTRL
+
+config PINMUX
+	bool "Support pinmux controllers"
+	help
+	  Say Y here if you want the pincontrol subsystem to handle pin
+	  multiplexing drivers.
+
+config DEBUG_PINCTRL
+	bool "Debug PINCTRL calls"
+	depends on DEBUG_KERNEL
+	help
+	  Say Y here to add some extra checks and diagnostics to PINCTRL calls.
+
+config PINMUX_SIRF
+	bool "CSR SiRFprimaII pinmux driver"
+	depends on ARCH_PRIMA2
+	select PINMUX
+	help
+	  Say Y here to enable the SiRFprimaII pinmux driver
+
+config PINMUX_U300
+	bool "U300 pinmux driver"
+	depends on ARCH_U300
+	select PINMUX
+	help
+	  Say Y here to enable the U300 pinmux driver
+
+endif
diff --git a/drivers/pinctrl/Makefile b/drivers/pinctrl/Makefile
new file mode 100644
index 000000000000..bdc548a6b7e9
--- /dev/null
+++ b/drivers/pinctrl/Makefile
@@ -0,0 +1,8 @@
+# generic pinmux support
+
+ccflags-$(CONFIG_DEBUG_PINMUX)	+= -DDEBUG
+
+obj-$(CONFIG_PINCTRL)		+= core.o
+obj-$(CONFIG_PINMUX)		+= pinmux.o
+obj-$(CONFIG_PINMUX_SIRF)	+= pinmux-sirf.o
+obj-$(CONFIG_PINMUX_U300)	+= pinmux-u300.o
diff --git a/drivers/pinctrl/core.c b/drivers/pinctrl/core.c
new file mode 100644
index 000000000000..423522d87313
--- /dev/null
+++ b/drivers/pinctrl/core.c
@@ -0,0 +1,598 @@
+/*
+ * Core driver for the pin control subsystem
+ *
+ * Copyright (C) 2011 ST-Ericsson SA
+ * Written on behalf of Linaro for ST-Ericsson
+ * Based on bits of regulator core, gpio core and clk core
+ *
+ * Author: Linus Walleij <linus.walleij@linaro.org>
+ *
+ * License terms: GNU General Public License (GPL) version 2
+ */
+#define pr_fmt(fmt) "pinctrl core: " fmt
+
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/device.h>
+#include <linux/slab.h>
+#include <linux/radix-tree.h>
+#include <linux/err.h>
+#include <linux/list.h>
+#include <linux/mutex.h>
+#include <linux/spinlock.h>
+#include <linux/sysfs.h>
+#include <linux/debugfs.h>
+#include <linux/seq_file.h>
+#include <linux/pinctrl/pinctrl.h>
+#include <linux/pinctrl/machine.h>
+#include "core.h"
+#include "pinmux.h"
+
+/* Global list of pin control devices */
+static DEFINE_MUTEX(pinctrldev_list_mutex);
+static LIST_HEAD(pinctrldev_list);
+
+static void pinctrl_dev_release(struct device *dev)
+{
+	struct pinctrl_dev *pctldev = dev_get_drvdata(dev);
+	kfree(pctldev);
+}
+
+const char *pinctrl_dev_get_name(struct pinctrl_dev *pctldev)
+{
+	/* We're not allowed to register devices without name */
+	return pctldev->desc->name;
+}
+EXPORT_SYMBOL_GPL(pinctrl_dev_get_name);
+
+void *pinctrl_dev_get_drvdata(struct pinctrl_dev *pctldev)
+{
+	return pctldev->driver_data;
+}
+EXPORT_SYMBOL_GPL(pinctrl_dev_get_drvdata);
+
+/**
+ * get_pinctrl_dev_from_dev() - look up pin controller device
+ * @dev: a device pointer, this may be NULL but then devname needs to be
+ *	defined instead
+ * @devname: the name of a device instance, as returned by dev_name(), this
+ *	may be NULL but then dev needs to be defined instead
+ *
+ * Looks up a pin control device matching a certain device name or pure device
+ * pointer, the pure device pointer will take precedence.
+ */
+struct pinctrl_dev *get_pinctrl_dev_from_dev(struct device *dev,
+					     const char *devname)
+{
+	struct pinctrl_dev *pctldev = NULL;
+	bool found = false;
+
+	mutex_lock(&pinctrldev_list_mutex);
+	list_for_each_entry(pctldev, &pinctrldev_list, node) {
+		if (dev &&  &pctldev->dev == dev) {
+			/* Matched on device pointer */
+			found = true;
+			break;
+		}
+
+		if (devname &&
+		    !strcmp(dev_name(&pctldev->dev), devname)) {
+			/* Matched on device name */
+			found = true;
+			break;
+		}
+	}
+	mutex_unlock(&pinctrldev_list_mutex);
+
+	return found ? pctldev : NULL;
+}
+
+struct pin_desc *pin_desc_get(struct pinctrl_dev *pctldev, int pin)
+{
+	struct pin_desc *pindesc;
+	unsigned long flags;
+
+	spin_lock_irqsave(&pctldev->pin_desc_tree_lock, flags);
+	pindesc = radix_tree_lookup(&pctldev->pin_desc_tree, pin);
+	spin_unlock_irqrestore(&pctldev->pin_desc_tree_lock, flags);
+
+	return pindesc;
+}
+
+/**
+ * pin_is_valid() - check if pin exists on controller
+ * @pctldev: the pin control device to check the pin on
+ * @pin: pin to check, use the local pin controller index number
+ *
+ * This tells us whether a certain pin exist on a certain pin controller or
+ * not. Pin lists may be sparse, so some pins may not exist.
+ */
+bool pin_is_valid(struct pinctrl_dev *pctldev, int pin)
+{
+	struct pin_desc *pindesc;
+
+	if (pin < 0)
+		return false;
+
+	pindesc = pin_desc_get(pctldev, pin);
+	if (pindesc == NULL)
+		return false;
+
+	return true;
+}
+EXPORT_SYMBOL_GPL(pin_is_valid);
+
+/* Deletes a range of pin descriptors */
+static void pinctrl_free_pindescs(struct pinctrl_dev *pctldev,
+				  const struct pinctrl_pin_desc *pins,
+				  unsigned num_pins)
+{
+	int i;
+
+	spin_lock(&pctldev->pin_desc_tree_lock);
+	for (i = 0; i < num_pins; i++) {
+		struct pin_desc *pindesc;
+
+		pindesc = radix_tree_lookup(&pctldev->pin_desc_tree,
+					    pins[i].number);
+		if (pindesc != NULL) {
+			radix_tree_delete(&pctldev->pin_desc_tree,
+					  pins[i].number);
+		}
+		kfree(pindesc);
+	}
+	spin_unlock(&pctldev->pin_desc_tree_lock);
+}
+
+static int pinctrl_register_one_pin(struct pinctrl_dev *pctldev,
+				    unsigned number, const char *name)
+{
+	struct pin_desc *pindesc;
+
+	pindesc = pin_desc_get(pctldev, number);
+	if (pindesc != NULL) {
+		pr_err("pin %d already registered on %s\n", number,
+		       pctldev->desc->name);
+		return -EINVAL;
+	}
+
+	pindesc = kzalloc(sizeof(*pindesc), GFP_KERNEL);
+	if (pindesc == NULL)
+		return -ENOMEM;
+	spin_lock_init(&pindesc->lock);
+
+	/* Set owner */
+	pindesc->pctldev = pctldev;
+
+	/* Copy basic pin info */
+	pindesc->name = name;
+
+	spin_lock(&pctldev->pin_desc_tree_lock);
+	radix_tree_insert(&pctldev->pin_desc_tree, number, pindesc);
+	spin_unlock(&pctldev->pin_desc_tree_lock);
+	pr_debug("registered pin %d (%s) on %s\n",
+		 number, name ? name : "(unnamed)", pctldev->desc->name);
+	return 0;
+}
+
+static int pinctrl_register_pins(struct pinctrl_dev *pctldev,
+				 struct pinctrl_pin_desc const *pins,
+				 unsigned num_descs)
+{
+	unsigned i;
+	int ret = 0;
+
+	for (i = 0; i < num_descs; i++) {
+		ret = pinctrl_register_one_pin(pctldev,
+					       pins[i].number, pins[i].name);
+		if (ret)
+			return ret;
+	}
+
+	return 0;
+}
+
+/**
+ * pinctrl_match_gpio_range() - check if a certain GPIO pin is in range
+ * @pctldev: pin controller device to check
+ * @gpio: gpio pin to check taken from the global GPIO pin space
+ *
+ * Tries to match a GPIO pin number to the ranges handled by a certain pin
+ * controller, return the range or NULL
+ */
+static struct pinctrl_gpio_range *
+pinctrl_match_gpio_range(struct pinctrl_dev *pctldev, unsigned gpio)
+{
+	struct pinctrl_gpio_range *range = NULL;
+
+	/* Loop over the ranges */
+	mutex_lock(&pctldev->gpio_ranges_lock);
+	list_for_each_entry(range, &pctldev->gpio_ranges, node) {
+		/* Check if we're in the valid range */
+		if (gpio >= range->base &&
+		    gpio < range->base + range->npins) {
+			mutex_unlock(&pctldev->gpio_ranges_lock);
+			return range;
+		}
+	}
+	mutex_unlock(&pctldev->gpio_ranges_lock);
+
+	return NULL;
+}
+
+/**
+ * pinctrl_get_device_gpio_range() - find device for GPIO range
+ * @gpio: the pin to locate the pin controller for
+ * @outdev: the pin control device if found
+ * @outrange: the GPIO range if found
+ *
+ * Find the pin controller handling a certain GPIO pin from the pinspace of
+ * the GPIO subsystem, return the device and the matching GPIO range. Returns
+ * negative if the GPIO range could not be found in any device.
+ */
+int pinctrl_get_device_gpio_range(unsigned gpio,
+				struct pinctrl_dev **outdev,
+				struct pinctrl_gpio_range **outrange)
+{
+	struct pinctrl_dev *pctldev = NULL;
+
+	/* Loop over the pin controllers */
+	mutex_lock(&pinctrldev_list_mutex);
+	list_for_each_entry(pctldev, &pinctrldev_list, node) {
+		struct pinctrl_gpio_range *range;
+
+		range = pinctrl_match_gpio_range(pctldev, gpio);
+		if (range != NULL) {
+			*outdev = pctldev;
+			*outrange = range;
+			mutex_unlock(&pinctrldev_list_mutex);
+			return 0;
+		}
+	}
+	mutex_unlock(&pinctrldev_list_mutex);
+
+	return -EINVAL;
+}
+
+/**
+ * pinctrl_add_gpio_range() - register a GPIO range for a controller
+ * @pctldev: pin controller device to add the range to
+ * @range: the GPIO range to add
+ *
+ * This adds a range of GPIOs to be handled by a certain pin controller. Call
+ * this to register handled ranges after registering your pin controller.
+ */
+void pinctrl_add_gpio_range(struct pinctrl_dev *pctldev,
+			    struct pinctrl_gpio_range *range)
+{
+	mutex_lock(&pctldev->gpio_ranges_lock);
+	list_add(&range->node, &pctldev->gpio_ranges);
+	mutex_unlock(&pctldev->gpio_ranges_lock);
+}
+
+/**
+ * pinctrl_remove_gpio_range() - remove a range of GPIOs fro a pin controller
+ * @pctldev: pin controller device to remove the range from
+ * @range: the GPIO range to remove
+ */
+void pinctrl_remove_gpio_range(struct pinctrl_dev *pctldev,
+			       struct pinctrl_gpio_range *range)
+{
+	mutex_lock(&pctldev->gpio_ranges_lock);
+	list_del(&range->node);
+	mutex_unlock(&pctldev->gpio_ranges_lock);
+}
+
+#ifdef CONFIG_DEBUG_FS
+
+static int pinctrl_pins_show(struct seq_file *s, void *what)
+{
+	struct pinctrl_dev *pctldev = s->private;
+	const struct pinctrl_ops *ops = pctldev->desc->pctlops;
+	unsigned pin;
+
+	seq_printf(s, "registered pins: %d\n", pctldev->desc->npins);
+	seq_printf(s, "max pin number: %d\n", pctldev->desc->maxpin);
+
+	/* The highest pin number need to be included in the loop, thus <= */
+	for (pin = 0; pin <= pctldev->desc->maxpin; pin++) {
+		struct pin_desc *desc;
+
+		desc = pin_desc_get(pctldev, pin);
+		/* Pin space may be sparse */
+		if (desc == NULL)
+			continue;
+
+		seq_printf(s, "pin %d (%s) ", pin,
+			   desc->name ? desc->name : "unnamed");
+
+		/* Driver-specific info per pin */
+		if (ops->pin_dbg_show)
+			ops->pin_dbg_show(pctldev, s, pin);
+
+		seq_puts(s, "\n");
+	}
+
+	return 0;
+}
+
+static int pinctrl_groups_show(struct seq_file *s, void *what)
+{
+	struct pinctrl_dev *pctldev = s->private;
+	const struct pinctrl_ops *ops = pctldev->desc->pctlops;
+	unsigned selector = 0;
+
+	/* No grouping */
+	if (!ops)
+		return 0;
+
+	seq_puts(s, "registered pin groups:\n");
+	while (ops->list_groups(pctldev, selector) >= 0) {
+		const unsigned *pins;
+		unsigned num_pins;
+		const char *gname = ops->get_group_name(pctldev, selector);
+		int ret;
+		int i;
+
+		ret = ops->get_group_pins(pctldev, selector,
+					  &pins, &num_pins);
+		if (ret)
+			seq_printf(s, "%s [ERROR GETTING PINS]\n",
+				   gname);
+		else {
+			seq_printf(s, "group: %s, pins = [ ", gname);
+			for (i = 0; i < num_pins; i++)
+				seq_printf(s, "%d ", pins[i]);
+			seq_puts(s, "]\n");
+		}
+		selector++;
+	}
+
+
+	return 0;
+}
+
+static int pinctrl_gpioranges_show(struct seq_file *s, void *what)
+{
+	struct pinctrl_dev *pctldev = s->private;
+	struct pinctrl_gpio_range *range = NULL;
+
+	seq_puts(s, "GPIO ranges handled:\n");
+
+	/* Loop over the ranges */
+	mutex_lock(&pctldev->gpio_ranges_lock);
+	list_for_each_entry(range, &pctldev->gpio_ranges, node) {
+		seq_printf(s, "%u: %s [%u - %u]\n", range->id, range->name,
+			   range->base, (range->base + range->npins - 1));
+	}
+	mutex_unlock(&pctldev->gpio_ranges_lock);
+
+	return 0;
+}
+
+static int pinctrl_devices_show(struct seq_file *s, void *what)
+{
+	struct pinctrl_dev *pctldev;
+
+	seq_puts(s, "name [pinmux]\n");
+	mutex_lock(&pinctrldev_list_mutex);
+	list_for_each_entry(pctldev, &pinctrldev_list, node) {
+		seq_printf(s, "%s ", pctldev->desc->name);
+		if (pctldev->desc->pmxops)
+			seq_puts(s, "yes");
+		else
+			seq_puts(s, "no");
+		seq_puts(s, "\n");
+	}
+	mutex_unlock(&pinctrldev_list_mutex);
+
+	return 0;
+}
+
+static int pinctrl_pins_open(struct inode *inode, struct file *file)
+{
+	return single_open(file, pinctrl_pins_show, inode->i_private);
+}
+
+static int pinctrl_groups_open(struct inode *inode, struct file *file)
+{
+	return single_open(file, pinctrl_groups_show, inode->i_private);
+}
+
+static int pinctrl_gpioranges_open(struct inode *inode, struct file *file)
+{
+	return single_open(file, pinctrl_gpioranges_show, inode->i_private);
+}
+
+static int pinctrl_devices_open(struct inode *inode, struct file *file)
+{
+	return single_open(file, pinctrl_devices_show, NULL);
+}
+
+static const struct file_operations pinctrl_pins_ops = {
+	.open		= pinctrl_pins_open,
+	.read		= seq_read,
+	.llseek		= seq_lseek,
+	.release	= single_release,
+};
+
+static const struct file_operations pinctrl_groups_ops = {
+	.open		= pinctrl_groups_open,
+	.read		= seq_read,
+	.llseek		= seq_lseek,
+	.release	= single_release,
+};
+
+static const struct file_operations pinctrl_gpioranges_ops = {
+	.open		= pinctrl_gpioranges_open,
+	.read		= seq_read,
+	.llseek		= seq_lseek,
+	.release	= single_release,
+};
+
+static const struct file_operations pinctrl_devices_ops = {
+	.open		= pinctrl_devices_open,
+	.read		= seq_read,
+	.llseek		= seq_lseek,
+	.release	= single_release,
+};
+
+static struct dentry *debugfs_root;
+
+static void pinctrl_init_device_debugfs(struct pinctrl_dev *pctldev)
+{
+	static struct dentry *device_root;
+
+	device_root = debugfs_create_dir(dev_name(&pctldev->dev),
+					 debugfs_root);
+	if (IS_ERR(device_root) || !device_root) {
+		pr_warn("failed to create debugfs directory for %s\n",
+			dev_name(&pctldev->dev));
+		return;
+	}
+	debugfs_create_file("pins", S_IFREG | S_IRUGO,
+			    device_root, pctldev, &pinctrl_pins_ops);
+	debugfs_create_file("pingroups", S_IFREG | S_IRUGO,
+			    device_root, pctldev, &pinctrl_groups_ops);
+	debugfs_create_file("gpio-ranges", S_IFREG | S_IRUGO,
+			    device_root, pctldev, &pinctrl_gpioranges_ops);
+	pinmux_init_device_debugfs(device_root, pctldev);
+}
+
+static void pinctrl_init_debugfs(void)
+{
+	debugfs_root = debugfs_create_dir("pinctrl", NULL);
+	if (IS_ERR(debugfs_root) || !debugfs_root) {
+		pr_warn("failed to create debugfs directory\n");
+		debugfs_root = NULL;
+		return;
+	}
+
+	debugfs_create_file("pinctrl-devices", S_IFREG | S_IRUGO,
+			    debugfs_root, NULL, &pinctrl_devices_ops);
+	pinmux_init_debugfs(debugfs_root);
+}
+
+#else /* CONFIG_DEBUG_FS */
+
+static void pinctrl_init_device_debugfs(struct pinctrl_dev *pctldev)
+{
+}
+
+static void pinctrl_init_debugfs(void)
+{
+}
+
+#endif
+
+/**
+ * pinctrl_register() - register a pin controller device
+ * @pctldesc: descriptor for this pin controller
+ * @dev: parent device for this pin controller
+ * @driver_data: private pin controller data for this pin controller
+ */
+struct pinctrl_dev *pinctrl_register(struct pinctrl_desc *pctldesc,
+				    struct device *dev, void *driver_data)
+{
+	static atomic_t pinmux_no = ATOMIC_INIT(0);
+	struct pinctrl_dev *pctldev;
+	int ret;
+
+	if (pctldesc == NULL)
+		return NULL;
+	if (pctldesc->name == NULL)
+		return NULL;
+
+	/* If we're implementing pinmuxing, check the ops for sanity */
+	if (pctldesc->pmxops) {
+		ret = pinmux_check_ops(pctldesc->pmxops);
+		if (ret) {
+			pr_err("%s pinmux ops lacks necessary functions\n",
+			       pctldesc->name);
+			return NULL;
+		}
+	}
+
+	pctldev = kzalloc(sizeof(struct pinctrl_dev), GFP_KERNEL);
+	if (pctldev == NULL)
+		return NULL;
+
+	/* Initialize pin control device struct */
+	pctldev->owner = pctldesc->owner;
+	pctldev->desc = pctldesc;
+	pctldev->driver_data = driver_data;
+	INIT_RADIX_TREE(&pctldev->pin_desc_tree, GFP_KERNEL);
+	spin_lock_init(&pctldev->pin_desc_tree_lock);
+	INIT_LIST_HEAD(&pctldev->gpio_ranges);
+	mutex_init(&pctldev->gpio_ranges_lock);
+
+	/* Register device */
+	pctldev->dev.parent = dev;
+	dev_set_name(&pctldev->dev, "pinctrl.%d",
+		     atomic_inc_return(&pinmux_no) - 1);
+	pctldev->dev.release = pinctrl_dev_release;
+	ret = device_register(&pctldev->dev);
+	if (ret != 0) {
+		pr_err("error in device registration\n");
+		goto out_reg_dev_err;
+	}
+	dev_set_drvdata(&pctldev->dev, pctldev);
+
+	/* Register all the pins */
+	pr_debug("try to register %d pins on %s...\n",
+		 pctldesc->npins, pctldesc->name);
+	ret = pinctrl_register_pins(pctldev, pctldesc->pins, pctldesc->npins);
+	if (ret) {
+		pr_err("error during pin registration\n");
+		pinctrl_free_pindescs(pctldev, pctldesc->pins,
+				      pctldesc->npins);
+		goto out_reg_pins_err;
+	}
+
+	pinctrl_init_device_debugfs(pctldev);
+	mutex_lock(&pinctrldev_list_mutex);
+	list_add(&pctldev->node, &pinctrldev_list);
+	mutex_unlock(&pinctrldev_list_mutex);
+	pinmux_hog_maps(pctldev);
+	return pctldev;
+
+out_reg_pins_err:
+	device_del(&pctldev->dev);
+out_reg_dev_err:
+	put_device(&pctldev->dev);
+	return NULL;
+}
+EXPORT_SYMBOL_GPL(pinctrl_register);
+
+/**
+ * pinctrl_unregister() - unregister pinmux
+ * @pctldev: pin controller to unregister
+ *
+ * Called by pinmux drivers to unregister a pinmux.
+ */
+void pinctrl_unregister(struct pinctrl_dev *pctldev)
+{
+	if (pctldev == NULL)
+		return;
+
+	pinmux_unhog_maps(pctldev);
+	/* TODO: check that no pinmuxes are still active? */
+	mutex_lock(&pinctrldev_list_mutex);
+	list_del(&pctldev->node);
+	mutex_unlock(&pinctrldev_list_mutex);
+	/* Destroy descriptor tree */
+	pinctrl_free_pindescs(pctldev, pctldev->desc->pins,
+			      pctldev->desc->npins);
+	device_unregister(&pctldev->dev);
+}
+EXPORT_SYMBOL_GPL(pinctrl_unregister);
+
+static int __init pinctrl_init(void)
+{
+	pr_info("initialized pinctrl subsystem\n");
+	pinctrl_init_debugfs();
+	return 0;
+}
+
+/* init early since many drivers really need to initialized pinmux early */
+core_initcall(pinctrl_init);
diff --git a/drivers/pinctrl/core.h b/drivers/pinctrl/core.h
new file mode 100644
index 000000000000..472fa1341cc0
--- /dev/null
+++ b/drivers/pinctrl/core.h
@@ -0,0 +1,71 @@
+/*
+ * Core private header for the pin control subsystem
+ *
+ * Copyright (C) 2011 ST-Ericsson SA
+ * Written on behalf of Linaro for ST-Ericsson
+ *
+ * Author: Linus Walleij <linus.walleij@linaro.org>
+ *
+ * License terms: GNU General Public License (GPL) version 2
+ */
+
+/**
+ * struct pinctrl_dev - pin control class device
+ * @node: node to include this pin controller in the global pin controller list
+ * @desc: the pin controller descriptor supplied when initializing this pin
+ *	controller
+ * @pin_desc_tree: each pin descriptor for this pin controller is stored in
+ *	this radix tree
+ * @pin_desc_tree_lock: lock for the descriptor tree
+ * @gpio_ranges: a list of GPIO ranges that is handled by this pin controller,
+ *	ranges are added to this list at runtime
+ * @gpio_ranges_lock: lock for the GPIO ranges list
+ * @dev: the device entry for this pin controller
+ * @owner: module providing the pin controller, used for refcounting
+ * @driver_data: driver data for drivers registering to the pin controller
+ *	subsystem
+ * @pinmux_hogs_lock: lock for the pinmux hog list
+ * @pinmux_hogs: list of pinmux maps hogged by this device
+ */
+struct pinctrl_dev {
+	struct list_head node;
+	struct pinctrl_desc *desc;
+	struct radix_tree_root pin_desc_tree;
+	spinlock_t pin_desc_tree_lock;
+	struct list_head gpio_ranges;
+	struct mutex gpio_ranges_lock;
+	struct device dev;
+	struct module *owner;
+	void *driver_data;
+#ifdef CONFIG_PINMUX
+	struct mutex pinmux_hogs_lock;
+	struct list_head pinmux_hogs;
+#endif
+};
+
+/**
+ * struct pin_desc - pin descriptor for each physical pin in the arch
+ * @pctldev: corresponding pin control device
+ * @name: a name for the pin, e.g. the name of the pin/pad/finger on a
+ *	datasheet or such
+ * @lock: a lock to protect the descriptor structure
+ * @mux_requested: whether the pin is already requested by pinmux or not
+ * @mux_function: a named muxing function for the pin that will be passed to
+ *	subdrivers and shown in debugfs etc
+ */
+struct pin_desc {
+	struct pinctrl_dev *pctldev;
+	const char *name;
+	spinlock_t lock;
+	/* These fields only added when supporting pinmux drivers */
+#ifdef CONFIG_PINMUX
+	const char *mux_function;
+#endif
+};
+
+struct pinctrl_dev *get_pinctrl_dev_from_dev(struct device *dev,
+					     const char *dev_name);
+struct pin_desc *pin_desc_get(struct pinctrl_dev *pctldev, int pin);
+int pinctrl_get_device_gpio_range(unsigned gpio,
+				  struct pinctrl_dev **outdev,
+				  struct pinctrl_gpio_range **outrange);
diff --git a/drivers/pinctrl/pinmux-sirf.c b/drivers/pinctrl/pinmux-sirf.c
new file mode 100644
index 000000000000..d76cae620956
--- /dev/null
+++ b/drivers/pinctrl/pinmux-sirf.c
@@ -0,0 +1,1215 @@
+/*
+ * pinmux driver for CSR SiRFprimaII
+ *
+ * Copyright (c) 2011 Cambridge Silicon Radio Limited, a CSR plc group company.
+ *
+ * Licensed under GPLv2 or later.
+ */
+
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/io.h>
+#include <linux/slab.h>
+#include <linux/err.h>
+#include <linux/pinctrl/pinctrl.h>
+#include <linux/pinctrl/pinmux.h>
+#include <linux/of.h>
+#include <linux/of_address.h>
+#include <linux/of_device.h>
+#include <linux/of_platform.h>
+#include <linux/bitops.h>
+
+#define DRIVER_NAME "pinmux-sirf"
+
+#define SIRFSOC_NUM_PADS    622
+#define SIRFSOC_GPIO_PAD_EN(g) ((g)*0x100 + 0x84)
+#define SIRFSOC_RSC_PIN_MUX 0x4
+
+/*
+ * pad list for the pinmux subsystem
+ * refer to CS-131858-DC-6A.xls
+ */
+static const struct pinctrl_pin_desc sirfsoc_pads[] = {
+	PINCTRL_PIN(4, "pwm0"),
+	PINCTRL_PIN(5, "pwm1"),
+	PINCTRL_PIN(6, "pwm2"),
+	PINCTRL_PIN(7, "pwm3"),
+	PINCTRL_PIN(8, "warm_rst_b"),
+	PINCTRL_PIN(9, "odo_0"),
+	PINCTRL_PIN(10, "odo_1"),
+	PINCTRL_PIN(11, "dr_dir"),
+	PINCTRL_PIN(13, "scl_1"),
+	PINCTRL_PIN(15, "sda_1"),
+	PINCTRL_PIN(16, "x_ldd[16]"),
+	PINCTRL_PIN(17, "x_ldd[17]"),
+	PINCTRL_PIN(18, "x_ldd[18]"),
+	PINCTRL_PIN(19, "x_ldd[19]"),
+	PINCTRL_PIN(20, "x_ldd[20]"),
+	PINCTRL_PIN(21, "x_ldd[21]"),
+	PINCTRL_PIN(22, "x_ldd[22]"),
+	PINCTRL_PIN(23, "x_ldd[23], lcdrom_frdy"),
+	PINCTRL_PIN(24, "gps_sgn"),
+	PINCTRL_PIN(25, "gps_mag"),
+	PINCTRL_PIN(26, "gps_clk"),
+	PINCTRL_PIN(27,	"sd_cd_b_1"),
+	PINCTRL_PIN(28, "sd_vcc_on_1"),
+	PINCTRL_PIN(29, "sd_wp_b_1"),
+	PINCTRL_PIN(30, "sd_clk_3"),
+	PINCTRL_PIN(31, "sd_cmd_3"),
+
+	PINCTRL_PIN(32, "x_sd_dat_3[0]"),
+	PINCTRL_PIN(33, "x_sd_dat_3[1]"),
+	PINCTRL_PIN(34, "x_sd_dat_3[2]"),
+	PINCTRL_PIN(35, "x_sd_dat_3[3]"),
+	PINCTRL_PIN(36, "x_sd_clk_4"),
+	PINCTRL_PIN(37, "x_sd_cmd_4"),
+	PINCTRL_PIN(38, "x_sd_dat_4[0]"),
+	PINCTRL_PIN(39, "x_sd_dat_4[1]"),
+	PINCTRL_PIN(40, "x_sd_dat_4[2]"),
+	PINCTRL_PIN(41, "x_sd_dat_4[3]"),
+	PINCTRL_PIN(42, "x_cko_1"),
+	PINCTRL_PIN(43, "x_ac97_bit_clk"),
+	PINCTRL_PIN(44, "x_ac97_dout"),
+	PINCTRL_PIN(45, "x_ac97_din"),
+	PINCTRL_PIN(46, "x_ac97_sync"),
+	PINCTRL_PIN(47, "x_txd_1"),
+	PINCTRL_PIN(48, "x_txd_2"),
+	PINCTRL_PIN(49, "x_rxd_1"),
+	PINCTRL_PIN(50, "x_rxd_2"),
+	PINCTRL_PIN(51, "x_usclk_0"),
+	PINCTRL_PIN(52, "x_utxd_0"),
+	PINCTRL_PIN(53, "x_urxd_0"),
+	PINCTRL_PIN(54, "x_utfs_0"),
+	PINCTRL_PIN(55, "x_urfs_0"),
+	PINCTRL_PIN(56, "x_usclk_1"),
+	PINCTRL_PIN(57, "x_utxd_1"),
+	PINCTRL_PIN(58, "x_urxd_1"),
+	PINCTRL_PIN(59, "x_utfs_1"),
+	PINCTRL_PIN(60, "x_urfs_1"),
+	PINCTRL_PIN(61, "x_usclk_2"),
+	PINCTRL_PIN(62, "x_utxd_2"),
+	PINCTRL_PIN(63, "x_urxd_2"),
+
+	PINCTRL_PIN(64, "x_utfs_2"),
+	PINCTRL_PIN(65, "x_urfs_2"),
+	PINCTRL_PIN(66, "x_df_we_b"),
+	PINCTRL_PIN(67, "x_df_re_b"),
+	PINCTRL_PIN(68, "x_txd_0"),
+	PINCTRL_PIN(69, "x_rxd_0"),
+	PINCTRL_PIN(78, "x_cko_0"),
+	PINCTRL_PIN(79, "x_vip_pxd[7]"),
+	PINCTRL_PIN(80, "x_vip_pxd[6]"),
+	PINCTRL_PIN(81, "x_vip_pxd[5]"),
+	PINCTRL_PIN(82, "x_vip_pxd[4]"),
+	PINCTRL_PIN(83, "x_vip_pxd[3]"),
+	PINCTRL_PIN(84, "x_vip_pxd[2]"),
+	PINCTRL_PIN(85, "x_vip_pxd[1]"),
+	PINCTRL_PIN(86, "x_vip_pxd[0]"),
+	PINCTRL_PIN(87, "x_vip_vsync"),
+	PINCTRL_PIN(88, "x_vip_hsync"),
+	PINCTRL_PIN(89, "x_vip_pxclk"),
+	PINCTRL_PIN(90, "x_sda_0"),
+	PINCTRL_PIN(91, "x_scl_0"),
+	PINCTRL_PIN(92, "x_df_ry_by"),
+	PINCTRL_PIN(93, "x_df_cs_b[1]"),
+	PINCTRL_PIN(94, "x_df_cs_b[0]"),
+	PINCTRL_PIN(95, "x_l_pclk"),
+
+	PINCTRL_PIN(96, "x_l_lck"),
+	PINCTRL_PIN(97, "x_l_fck"),
+	PINCTRL_PIN(98, "x_l_de"),
+	PINCTRL_PIN(99, "x_ldd[0]"),
+	PINCTRL_PIN(100, "x_ldd[1]"),
+	PINCTRL_PIN(101, "x_ldd[2]"),
+	PINCTRL_PIN(102, "x_ldd[3]"),
+	PINCTRL_PIN(103, "x_ldd[4]"),
+	PINCTRL_PIN(104, "x_ldd[5]"),
+	PINCTRL_PIN(105, "x_ldd[6]"),
+	PINCTRL_PIN(106, "x_ldd[7]"),
+	PINCTRL_PIN(107, "x_ldd[8]"),
+	PINCTRL_PIN(108, "x_ldd[9]"),
+	PINCTRL_PIN(109, "x_ldd[10]"),
+	PINCTRL_PIN(110, "x_ldd[11]"),
+	PINCTRL_PIN(111, "x_ldd[12]"),
+	PINCTRL_PIN(112, "x_ldd[13]"),
+	PINCTRL_PIN(113, "x_ldd[14]"),
+	PINCTRL_PIN(114, "x_ldd[15]"),
+};
+
+/**
+ * @dev: a pointer back to containing device
+ * @virtbase: the offset to the controller in virtual memory
+ */
+struct sirfsoc_pmx {
+	struct device *dev;
+	struct pinctrl_dev *pmx;
+	void __iomem *gpio_virtbase;
+	void __iomem *rsc_virtbase;
+};
+
+/* SIRFSOC_GPIO_PAD_EN set */
+struct sirfsoc_muxmask {
+	unsigned long group;
+	unsigned long mask;
+};
+
+struct sirfsoc_padmux {
+	unsigned long muxmask_counts;
+	const struct sirfsoc_muxmask *muxmask;
+	/* RSC_PIN_MUX set */
+	unsigned long funcmask;
+	unsigned long funcval;
+};
+
+ /**
+ * struct sirfsoc_pin_group - describes a SiRFprimaII pin group
+ * @name: the name of this specific pin group
+ * @pins: an array of discrete physical pins used in this group, taken
+ *	from the driver-local pin enumeration space
+ * @num_pins: the number of pins in this group array, i.e. the number of
+ *	elements in .pins so we can iterate over that array
+ */
+struct sirfsoc_pin_group {
+	const char *name;
+	const unsigned int *pins;
+	const unsigned num_pins;
+};
+
+static const struct sirfsoc_muxmask lcd_16bits_sirfsoc_muxmask[] = {
+	{
+		.group = 3,
+		.mask = BIT(0) | BIT(1) | BIT(2) | BIT(3) | BIT(4) | BIT(5) | BIT(6) | BIT(7) | BIT(8) |
+			BIT(9) | BIT(10) | BIT(11) | BIT(12) | BIT(13) | BIT(14) | BIT(15) | BIT(16) |
+			BIT(17) | BIT(18),
+	}, {
+		.group = 2,
+		.mask = BIT(31),
+	},
+};
+
+static const struct sirfsoc_padmux lcd_16bits_padmux = {
+	.muxmask_counts = ARRAY_SIZE(lcd_16bits_sirfsoc_muxmask),
+	.muxmask = lcd_16bits_sirfsoc_muxmask,
+	.funcmask = BIT(4),
+	.funcval = 0,
+};
+
+static const unsigned lcd_16bits_pins[] = { 95, 96, 97, 98, 99, 100, 101, 102, 103, 104,
+	105, 106, 107, 108, 109, 110, 111, 112, 113, 114 };
+
+static const struct sirfsoc_muxmask lcd_18bits_muxmask[] = {
+	{
+		.group = 3,
+		.mask = BIT(0) | BIT(1) | BIT(2) | BIT(3) | BIT(4) | BIT(5) | BIT(6) | BIT(7) | BIT(8) |
+			BIT(9) | BIT(10) | BIT(11) | BIT(12) | BIT(13) | BIT(14) | BIT(15) | BIT(16) |
+			BIT(17) | BIT(18),
+	}, {
+		.group = 2,
+		.mask = BIT(31),
+	}, {
+		.group = 0,
+		.mask = BIT(16) | BIT(17),
+	},
+};
+
+static const struct sirfsoc_padmux lcd_18bits_padmux = {
+	.muxmask_counts = ARRAY_SIZE(lcd_18bits_muxmask),
+	.muxmask = lcd_18bits_muxmask,
+	.funcmask = BIT(4),
+	.funcval = 0,
+};
+
+static const unsigned lcd_18bits_pins[] = { 16, 17, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104,
+	105, 106, 107, 108, 109, 110, 111, 112, 113, 114};
+
+static const struct sirfsoc_muxmask lcd_24bits_muxmask[] = {
+	{
+		.group = 3,
+		.mask = BIT(0) | BIT(1) | BIT(2) | BIT(3) | BIT(4) | BIT(5) | BIT(6) | BIT(7) | BIT(8) |
+			BIT(9) | BIT(10) | BIT(11) | BIT(12) | BIT(13) | BIT(14) | BIT(15) | BIT(16) |
+			BIT(17) | BIT(18),
+	}, {
+		.group = 2,
+		.mask = BIT(31),
+	}, {
+		.group = 0,
+		.mask = BIT(16) | BIT(17) | BIT(18) | BIT(19) | BIT(20) | BIT(21) | BIT(22) | BIT(23),
+	},
+};
+
+static const struct sirfsoc_padmux lcd_24bits_padmux = {
+	.muxmask_counts = ARRAY_SIZE(lcd_24bits_muxmask),
+	.muxmask = lcd_24bits_muxmask,
+	.funcmask = BIT(4),
+	.funcval = 0,
+};
+
+static const unsigned lcd_24bits_pins[] = { 16, 17, 18, 19, 20, 21, 22, 23, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104,
+	105, 106, 107, 108, 109, 110, 111, 112, 113, 114 };
+
+static const struct sirfsoc_muxmask lcdrom_muxmask[] = {
+	{
+		.group = 3,
+		.mask = BIT(0) | BIT(1) | BIT(2) | BIT(3) | BIT(4) | BIT(5) | BIT(6) | BIT(7) | BIT(8) |
+			BIT(9) | BIT(10) | BIT(11) | BIT(12) | BIT(13) | BIT(14) | BIT(15) | BIT(16) |
+			BIT(17) | BIT(18),
+	}, {
+		.group = 2,
+		.mask = BIT(31),
+	}, {
+		.group = 0,
+		.mask = BIT(23),
+	},
+};
+
+static const struct sirfsoc_padmux lcdrom_padmux = {
+	.muxmask_counts = ARRAY_SIZE(lcdrom_muxmask),
+	.muxmask = lcdrom_muxmask,
+	.funcmask = BIT(4),
+	.funcval = BIT(4),
+};
+
+static const unsigned lcdrom_pins[] = { 23, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104,
+	105, 106, 107, 108, 109, 110, 111, 112, 113, 114 };
+
+static const struct sirfsoc_muxmask uart0_muxmask[] = {
+	{
+		.group = 2,
+		.mask = BIT(4) | BIT(5),
+	}, {
+		.group = 1,
+		.mask = BIT(23) | BIT(28),
+	},
+};
+
+static const struct sirfsoc_padmux uart0_padmux = {
+	.muxmask_counts = ARRAY_SIZE(uart0_muxmask),
+	.muxmask = uart0_muxmask,
+	.funcmask = BIT(9),
+	.funcval = BIT(9),
+};
+
+static const unsigned uart0_pins[] = { 55, 60, 68, 69 };
+
+static const struct sirfsoc_muxmask uart0_nostreamctrl_muxmask[] = {
+	{
+		.group = 2,
+		.mask = BIT(4) | BIT(5),
+	},
+};
+
+static const struct sirfsoc_padmux uart0_nostreamctrl_padmux = {
+	.muxmask_counts = ARRAY_SIZE(uart0_nostreamctrl_muxmask),
+	.muxmask = uart0_nostreamctrl_muxmask,
+};
+
+static const unsigned uart0_nostreamctrl_pins[] = { 68, 39 };
+
+static const struct sirfsoc_muxmask uart1_muxmask[] = {
+	{
+		.group = 1,
+		.mask = BIT(15) | BIT(17),
+	},
+};
+
+static const struct sirfsoc_padmux uart1_padmux = {
+	.muxmask_counts = ARRAY_SIZE(uart1_muxmask),
+	.muxmask = uart1_muxmask,
+};
+
+static const unsigned uart1_pins[] = { 47, 49 };
+
+static const struct sirfsoc_muxmask uart2_muxmask[] = {
+	{
+		.group = 1,
+		.mask = BIT(16) | BIT(18) | BIT(24) | BIT(27),
+	},
+};
+
+static const struct sirfsoc_padmux uart2_padmux = {
+	.muxmask_counts = ARRAY_SIZE(uart2_muxmask),
+	.muxmask = uart2_muxmask,
+	.funcmask = BIT(10),
+	.funcval = BIT(10),
+};
+
+static const unsigned uart2_pins[] = { 48, 50, 56, 59 };
+
+static const struct sirfsoc_muxmask uart2_nostreamctrl_muxmask[] = {
+	{
+		.group = 1,
+		.mask = BIT(16) | BIT(18),
+	},
+};
+
+static const struct sirfsoc_padmux uart2_nostreamctrl_padmux = {
+	.muxmask_counts = ARRAY_SIZE(uart2_nostreamctrl_muxmask),
+	.muxmask = uart2_nostreamctrl_muxmask,
+};
+
+static const unsigned uart2_nostreamctrl_pins[] = { 48, 50 };
+
+static const struct sirfsoc_muxmask sdmmc3_muxmask[] = {
+	{
+		.group = 0,
+		.mask = BIT(30) | BIT(31),
+	}, {
+		.group = 1,
+		.mask = BIT(0) | BIT(1) | BIT(2) | BIT(3),
+	},
+};
+
+static const struct sirfsoc_padmux sdmmc3_padmux = {
+	.muxmask_counts = ARRAY_SIZE(sdmmc3_muxmask),
+	.muxmask = sdmmc3_muxmask,
+	.funcmask = BIT(7),
+	.funcval = 0,
+};
+
+static const unsigned sdmmc3_pins[] = { 30, 31, 32, 33, 34, 35 };
+
+static const struct sirfsoc_muxmask spi0_muxmask[] = {
+	{
+		.group = 1,
+		.mask = BIT(0) | BIT(1) | BIT(2) | BIT(3),
+	},
+};
+
+static const struct sirfsoc_padmux spi0_padmux = {
+	.muxmask_counts = ARRAY_SIZE(spi0_muxmask),
+	.muxmask = spi0_muxmask,
+	.funcmask = BIT(7),
+	.funcval = BIT(7),
+};
+
+static const unsigned spi0_pins[] = { 32, 33, 34, 35 };
+
+static const struct sirfsoc_muxmask sdmmc4_muxmask[] = {
+	{
+		.group = 1,
+		.mask = BIT(4) | BIT(5) | BIT(6) | BIT(7) | BIT(8) | BIT(9),
+	},
+};
+
+static const struct sirfsoc_padmux sdmmc4_padmux = {
+	.muxmask_counts = ARRAY_SIZE(sdmmc4_muxmask),
+	.muxmask = sdmmc4_muxmask,
+};
+
+static const unsigned sdmmc4_pins[] = { 36, 37, 38, 39, 40, 41 };
+
+static const struct sirfsoc_muxmask cko1_muxmask[] = {
+	{
+		.group = 1,
+		.mask = BIT(10),
+	},
+};
+
+static const struct sirfsoc_padmux cko1_padmux = {
+	.muxmask_counts = ARRAY_SIZE(cko1_muxmask),
+	.muxmask = cko1_muxmask,
+	.funcmask = BIT(3),
+	.funcval = 0,
+};
+
+static const unsigned cko1_pins[] = { 42 };
+
+static const struct sirfsoc_muxmask i2s_muxmask[] = {
+	{
+		.group = 1,
+		.mask =
+			BIT(10) | BIT(11) | BIT(12) | BIT(13) | BIT(14) | BIT(19)
+				| BIT(23) | BIT(28),
+	},
+};
+
+static const struct sirfsoc_padmux i2s_padmux = {
+	.muxmask_counts = ARRAY_SIZE(i2s_muxmask),
+	.muxmask = i2s_muxmask,
+	.funcmask = BIT(3) | BIT(9),
+	.funcval = BIT(3),
+};
+
+static const unsigned i2s_pins[] = { 42, 43, 44, 45, 46, 51, 55, 60 };
+
+static const struct sirfsoc_muxmask ac97_muxmask[] = {
+	{
+		.group = 1,
+		.mask = BIT(11) | BIT(12) | BIT(13) | BIT(14),
+	},
+};
+
+static const struct sirfsoc_padmux ac97_padmux = {
+	.muxmask_counts = ARRAY_SIZE(ac97_muxmask),
+	.muxmask = ac97_muxmask,
+	.funcmask = BIT(8),
+	.funcval = 0,
+};
+
+static const unsigned ac97_pins[] = { 33, 34, 35, 36 };
+
+static const struct sirfsoc_muxmask spi1_muxmask[] = {
+	{
+		.group = 1,
+		.mask = BIT(11) | BIT(12) | BIT(13) | BIT(14),
+	},
+};
+
+static const struct sirfsoc_padmux spi1_padmux = {
+	.muxmask_counts = ARRAY_SIZE(spi1_muxmask),
+	.muxmask = spi1_muxmask,
+	.funcmask = BIT(8),
+	.funcval = BIT(8),
+};
+
+static const unsigned spi1_pins[] = { 33, 34, 35, 36 };
+
+static const struct sirfsoc_muxmask sdmmc1_muxmask[] = {
+	{
+		.group = 0,
+		.mask = BIT(27) | BIT(28) | BIT(29),
+	},
+};
+
+static const struct sirfsoc_padmux sdmmc1_padmux = {
+	.muxmask_counts = ARRAY_SIZE(sdmmc1_muxmask),
+	.muxmask = sdmmc1_muxmask,
+};
+
+static const unsigned sdmmc1_pins[] = { 27, 28, 29 };
+
+static const struct sirfsoc_muxmask gps_muxmask[] = {
+	{
+		.group = 0,
+		.mask = BIT(24) | BIT(25) | BIT(26),
+	},
+};
+
+static const struct sirfsoc_padmux gps_padmux = {
+	.muxmask_counts = ARRAY_SIZE(gps_muxmask),
+	.muxmask = gps_muxmask,
+	.funcmask = BIT(12) | BIT(13) | BIT(14),
+	.funcval = BIT(12),
+};
+
+static const unsigned gps_pins[] = { 24, 25, 26 };
+
+static const struct sirfsoc_muxmask sdmmc5_muxmask[] = {
+	{
+		.group = 0,
+		.mask = BIT(24) | BIT(25) | BIT(26),
+	}, {
+		.group = 1,
+		.mask = BIT(29),
+	}, {
+		.group = 2,
+		.mask = BIT(0) | BIT(1),
+	},
+};
+
+static const struct sirfsoc_padmux sdmmc5_padmux = {
+	.muxmask_counts = ARRAY_SIZE(sdmmc5_muxmask),
+	.muxmask = sdmmc5_muxmask,
+	.funcmask = BIT(13) | BIT(14),
+	.funcval = BIT(13) | BIT(14),
+};
+
+static const unsigned sdmmc5_pins[] = { 24, 25, 26, 61, 64, 65 };
+
+static const struct sirfsoc_muxmask usp0_muxmask[] = {
+	{
+		.group = 1,
+		.mask = BIT(19) | BIT(20) | BIT(21) | BIT(22) | BIT(23),
+	},
+};
+
+static const struct sirfsoc_padmux usp0_padmux = {
+	.muxmask_counts = ARRAY_SIZE(usp0_muxmask),
+	.muxmask = usp0_muxmask,
+	.funcmask = BIT(1) | BIT(2) | BIT(6) | BIT(9),
+	.funcval = 0,
+};
+
+static const unsigned usp0_pins[] = { 51, 52, 53, 54, 55 };
+
+static const struct sirfsoc_muxmask usp1_muxmask[] = {
+	{
+		.group = 1,
+		.mask = BIT(24) | BIT(25) | BIT(26) | BIT(27) | BIT(28),
+	},
+};
+
+static const struct sirfsoc_padmux usp1_padmux = {
+	.muxmask_counts = ARRAY_SIZE(usp1_muxmask),
+	.muxmask = usp1_muxmask,
+	.funcmask = BIT(1) | BIT(9) | BIT(10) | BIT(11),
+	.funcval = 0,
+};
+
+static const unsigned usp1_pins[] = { 56, 57, 58, 59, 60 };
+
+static const struct sirfsoc_muxmask usp2_muxmask[] = {
+	{
+		.group = 1,
+		.mask = BIT(29) | BIT(30) | BIT(31),
+	}, {
+		.group = 2,
+		.mask = BIT(0) | BIT(1),
+	},
+};
+
+static const struct sirfsoc_padmux usp2_padmux = {
+	.muxmask_counts = ARRAY_SIZE(usp2_muxmask),
+	.muxmask = usp2_muxmask,
+	.funcmask = BIT(13) | BIT(14),
+	.funcval = 0,
+};
+
+static const unsigned usp2_pins[] = { 61, 62, 63, 64, 65 };
+
+static const struct sirfsoc_muxmask nand_muxmask[] = {
+	{
+		.group = 2,
+		.mask = BIT(2) | BIT(3) | BIT(28) | BIT(29) | BIT(30),
+	},
+};
+
+static const struct sirfsoc_padmux nand_padmux = {
+	.muxmask_counts = ARRAY_SIZE(nand_muxmask),
+	.muxmask = nand_muxmask,
+	.funcmask = BIT(5),
+	.funcval = 0,
+};
+
+static const unsigned nand_pins[] = { 64, 65, 92, 93, 94 };
+
+static const struct sirfsoc_padmux sdmmc0_padmux = {
+	.muxmask_counts = 0,
+	.funcmask = BIT(5),
+	.funcval = 0,
+};
+
+static const unsigned sdmmc0_pins[] = { };
+
+static const struct sirfsoc_muxmask sdmmc2_muxmask[] = {
+	{
+		.group = 2,
+		.mask = BIT(2) | BIT(3),
+	},
+};
+
+static const struct sirfsoc_padmux sdmmc2_padmux = {
+	.muxmask_counts = ARRAY_SIZE(sdmmc2_muxmask),
+	.muxmask = sdmmc2_muxmask,
+	.funcmask = BIT(5),
+	.funcval = BIT(5),
+};
+
+static const unsigned sdmmc2_pins[] = { 66, 67 };
+
+static const struct sirfsoc_muxmask cko0_muxmask[] = {
+	{
+		.group = 2,
+		.mask = BIT(14),
+	},
+};
+
+static const struct sirfsoc_padmux cko0_padmux = {
+	.muxmask_counts = ARRAY_SIZE(cko0_muxmask),
+	.muxmask = cko0_muxmask,
+};
+
+static const unsigned cko0_pins[] = { 78 };
+
+static const struct sirfsoc_muxmask vip_muxmask[] = {
+	{
+		.group = 2,
+		.mask = BIT(15) | BIT(16) | BIT(17) | BIT(18) | BIT(19)
+			| BIT(20) | BIT(21) | BIT(22) | BIT(23) | BIT(24) |
+			BIT(25),
+	},
+};
+
+static const struct sirfsoc_padmux vip_padmux = {
+	.muxmask_counts = ARRAY_SIZE(vip_muxmask),
+	.muxmask = vip_muxmask,
+	.funcmask = BIT(0),
+	.funcval = 0,
+};
+
+static const unsigned vip_pins[] = { 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89 };
+
+static const struct sirfsoc_muxmask i2c0_muxmask[] = {
+	{
+		.group = 2,
+		.mask = BIT(26) | BIT(27),
+	},
+};
+
+static const struct sirfsoc_padmux i2c0_padmux = {
+	.muxmask_counts = ARRAY_SIZE(i2c0_muxmask),
+	.muxmask = i2c0_muxmask,
+};
+
+static const unsigned i2c0_pins[] = { 90, 91 };
+
+static const struct sirfsoc_muxmask i2c1_muxmask[] = {
+	{
+		.group = 0,
+		.mask = BIT(13) | BIT(15),
+	},
+};
+
+static const struct sirfsoc_padmux i2c1_padmux = {
+	.muxmask_counts = ARRAY_SIZE(i2c1_muxmask),
+	.muxmask = i2c1_muxmask,
+};
+
+static const unsigned i2c1_pins[] = { 13, 15 };
+
+static const struct sirfsoc_muxmask viprom_muxmask[] = {
+	{
+		.group = 2,
+		.mask = BIT(15) | BIT(16) | BIT(17) | BIT(18) | BIT(19)
+			| BIT(20) | BIT(21) | BIT(22) | BIT(23) | BIT(24) |
+			BIT(25),
+	}, {
+		.group = 0,
+		.mask = BIT(12),
+	},
+};
+
+static const struct sirfsoc_padmux viprom_padmux = {
+	.muxmask_counts = ARRAY_SIZE(viprom_muxmask),
+	.muxmask = viprom_muxmask,
+	.funcmask = BIT(0),
+	.funcval = BIT(0),
+};
+
+static const unsigned viprom_pins[] = { 12, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89 };
+
+static const struct sirfsoc_muxmask pwm0_muxmask[] = {
+	{
+		.group = 0,
+		.mask = BIT(4),
+	},
+};
+
+static const struct sirfsoc_padmux pwm0_padmux = {
+	.muxmask_counts = ARRAY_SIZE(pwm0_muxmask),
+	.muxmask = pwm0_muxmask,
+	.funcmask = BIT(12),
+	.funcval = 0,
+};
+
+static const unsigned pwm0_pins[] = { 4 };
+
+static const struct sirfsoc_muxmask pwm1_muxmask[] = {
+	{
+		.group = 0,
+		.mask = BIT(5),
+	},
+};
+
+static const struct sirfsoc_padmux pwm1_padmux = {
+	.muxmask_counts = ARRAY_SIZE(pwm1_muxmask),
+	.muxmask = pwm1_muxmask,
+};
+
+static const unsigned pwm1_pins[] = { 5 };
+
+static const struct sirfsoc_muxmask pwm2_muxmask[] = {
+	{
+		.group = 0,
+		.mask = BIT(6),
+	},
+};
+
+static const struct sirfsoc_padmux pwm2_padmux = {
+	.muxmask_counts = ARRAY_SIZE(pwm2_muxmask),
+	.muxmask = pwm2_muxmask,
+};
+
+static const unsigned pwm2_pins[] = { 6 };
+
+static const struct sirfsoc_muxmask pwm3_muxmask[] = {
+	{
+		.group = 0,
+		.mask = BIT(7),
+	},
+};
+
+static const struct sirfsoc_padmux pwm3_padmux = {
+	.muxmask_counts = ARRAY_SIZE(pwm3_muxmask),
+	.muxmask = pwm3_muxmask,
+};
+
+static const unsigned pwm3_pins[] = { 7 };
+
+static const struct sirfsoc_muxmask warm_rst_muxmask[] = {
+	{
+		.group = 0,
+		.mask = BIT(8),
+	},
+};
+
+static const struct sirfsoc_padmux warm_rst_padmux = {
+	.muxmask_counts = ARRAY_SIZE(warm_rst_muxmask),
+	.muxmask = warm_rst_muxmask,
+};
+
+static const unsigned warm_rst_pins[] = { 8 };
+
+static const struct sirfsoc_muxmask usb0_utmi_drvbus_muxmask[] = {
+	{
+		.group = 1,
+		.mask = BIT(22),
+	},
+};
+static const struct sirfsoc_padmux usb0_utmi_drvbus_padmux = {
+	.muxmask_counts = ARRAY_SIZE(usb0_utmi_drvbus_muxmask),
+	.muxmask = usb0_utmi_drvbus_muxmask,
+	.funcmask = BIT(6),
+	.funcval = BIT(6), /* refer to PAD_UTMI_DRVVBUS0_ENABLE */
+};
+
+static const unsigned usb0_utmi_drvbus_pins[] = { 54 };
+
+static const struct sirfsoc_muxmask usb1_utmi_drvbus_muxmask[] = {
+	{
+		.group = 1,
+		.mask = BIT(27),
+	},
+};
+
+static const struct sirfsoc_padmux usb1_utmi_drvbus_padmux = {
+	.muxmask_counts = ARRAY_SIZE(usb1_utmi_drvbus_muxmask),
+	.muxmask = usb1_utmi_drvbus_muxmask,
+	.funcmask = BIT(11),
+	.funcval = BIT(11), /* refer to PAD_UTMI_DRVVBUS1_ENABLE */
+};
+
+static const unsigned usb1_utmi_drvbus_pins[] = { 59 };
+
+static const struct sirfsoc_muxmask pulse_count_muxmask[] = {
+	{
+		.group = 0,
+		.mask = BIT(9) | BIT(10) | BIT(11),
+	},
+};
+
+static const struct sirfsoc_padmux pulse_count_padmux = {
+	.muxmask_counts = ARRAY_SIZE(pulse_count_muxmask),
+	.muxmask = pulse_count_muxmask,
+};
+
+static const unsigned pulse_count_pins[] = { 9, 10, 11 };
+
+#define SIRFSOC_PIN_GROUP(n, p)  \
+	{			\
+		.name = n,	\
+		.pins = p,	\
+		.num_pins = ARRAY_SIZE(p),	\
+	}
+
+static const struct sirfsoc_pin_group sirfsoc_pin_groups[] = {
+	SIRFSOC_PIN_GROUP("lcd_16bitsgrp", lcd_16bits_pins),
+	SIRFSOC_PIN_GROUP("lcd_18bitsgrp", lcd_18bits_pins),
+	SIRFSOC_PIN_GROUP("lcd_24bitsgrp", lcd_24bits_pins),
+	SIRFSOC_PIN_GROUP("lcdrom_grp", lcdrom_pins),
+	SIRFSOC_PIN_GROUP("uart0grp", uart0_pins),
+	SIRFSOC_PIN_GROUP("uart1grp", uart1_pins),
+	SIRFSOC_PIN_GROUP("uart2grp", uart2_pins),
+	SIRFSOC_PIN_GROUP("uart2_nostreamctrlgrp", uart2_nostreamctrl_pins),
+	SIRFSOC_PIN_GROUP("usp0grp", usp0_pins),
+	SIRFSOC_PIN_GROUP("usp1grp", usp1_pins),
+	SIRFSOC_PIN_GROUP("usp2grp", usp2_pins),
+	SIRFSOC_PIN_GROUP("i2c0grp", i2c0_pins),
+	SIRFSOC_PIN_GROUP("i2c1grp", i2c1_pins),
+	SIRFSOC_PIN_GROUP("pwm0grp", pwm0_pins),
+	SIRFSOC_PIN_GROUP("pwm1grp", pwm1_pins),
+	SIRFSOC_PIN_GROUP("pwm2grp", pwm2_pins),
+	SIRFSOC_PIN_GROUP("pwm3grp", pwm3_pins),
+	SIRFSOC_PIN_GROUP("vipgrp", vip_pins),
+	SIRFSOC_PIN_GROUP("vipromgrp", viprom_pins),
+	SIRFSOC_PIN_GROUP("warm_rstgrp", warm_rst_pins),
+	SIRFSOC_PIN_GROUP("cko0_rstgrp", cko0_pins),
+	SIRFSOC_PIN_GROUP("cko1_rstgrp", cko1_pins),
+	SIRFSOC_PIN_GROUP("sdmmc0grp", sdmmc0_pins),
+	SIRFSOC_PIN_GROUP("sdmmc1grp", sdmmc1_pins),
+	SIRFSOC_PIN_GROUP("sdmmc2grp", sdmmc2_pins),
+	SIRFSOC_PIN_GROUP("sdmmc3grp", sdmmc3_pins),
+	SIRFSOC_PIN_GROUP("sdmmc4grp", sdmmc4_pins),
+	SIRFSOC_PIN_GROUP("sdmmc5grp", sdmmc5_pins),
+	SIRFSOC_PIN_GROUP("usb0_utmi_drvbusgrp", usb0_utmi_drvbus_pins),
+	SIRFSOC_PIN_GROUP("usb1_utmi_drvbusgrp", usb1_utmi_drvbus_pins),
+	SIRFSOC_PIN_GROUP("pulse_countgrp", pulse_count_pins),
+	SIRFSOC_PIN_GROUP("i2sgrp", i2s_pins),
+	SIRFSOC_PIN_GROUP("ac97grp", ac97_pins),
+	SIRFSOC_PIN_GROUP("nandgrp", nand_pins),
+	SIRFSOC_PIN_GROUP("spi0grp", spi0_pins),
+	SIRFSOC_PIN_GROUP("spi1grp", spi1_pins),
+	SIRFSOC_PIN_GROUP("gpsgrp", gps_pins),
+};
+
+static int sirfsoc_list_groups(struct pinctrl_dev *pctldev, unsigned selector)
+{
+	if (selector >= ARRAY_SIZE(sirfsoc_pin_groups))
+		return -EINVAL;
+	return 0;
+}
+
+static const char *sirfsoc_get_group_name(struct pinctrl_dev *pctldev,
+				       unsigned selector)
+{
+	if (selector >= ARRAY_SIZE(sirfsoc_pin_groups))
+		return NULL;
+	return sirfsoc_pin_groups[selector].name;
+}
+
+static int sirfsoc_get_group_pins(struct pinctrl_dev *pctldev, unsigned selector,
+			       const unsigned **pins,
+			       unsigned *num_pins)
+{
+	if (selector >= ARRAY_SIZE(sirfsoc_pin_groups))
+		return -EINVAL;
+	*pins = sirfsoc_pin_groups[selector].pins;
+	*num_pins = sirfsoc_pin_groups[selector].num_pins;
+	return 0;
+}
+
+static void sirfsoc_pin_dbg_show(struct pinctrl_dev *pctldev, struct seq_file *s,
+		   unsigned offset)
+{
+	seq_printf(s, " " DRIVER_NAME);
+}
+
+static struct pinctrl_ops sirfsoc_pctrl_ops = {
+	.list_groups = sirfsoc_list_groups,
+	.get_group_name = sirfsoc_get_group_name,
+	.get_group_pins = sirfsoc_get_group_pins,
+	.pin_dbg_show = sirfsoc_pin_dbg_show,
+};
+
+struct sirfsoc_pmx_func {
+	const char *name;
+	const char * const *groups;
+	const unsigned num_groups;
+	const struct sirfsoc_padmux *padmux;
+};
+
+static const char * const lcd_16bitsgrp[] = { "lcd_16bitsgrp" };
+static const char * const lcd_18bitsgrp[] = { "lcd_18bitsgrp" };
+static const char * const lcd_24bitsgrp[] = { "lcd_24bitsgrp" };
+static const char * const lcdromgrp[] = { "lcdromgrp" };
+static const char * const uart0grp[] = { "uart0grp" };
+static const char * const uart1grp[] = { "uart1grp" };
+static const char * const uart2grp[] = { "uart2grp" };
+static const char * const uart2_nostreamctrlgrp[] = { "uart2_nostreamctrlgrp" };
+static const char * const usp0grp[] = { "usp0grp" };
+static const char * const usp1grp[] = { "usp1grp" };
+static const char * const usp2grp[] = { "usp2grp" };
+static const char * const i2c0grp[] = { "i2c0grp" };
+static const char * const i2c1grp[] = { "i2c1grp" };
+static const char * const pwm0grp[] = { "pwm0grp" };
+static const char * const pwm1grp[] = { "pwm1grp" };
+static const char * const pwm2grp[] = { "pwm2grp" };
+static const char * const pwm3grp[] = { "pwm3grp" };
+static const char * const vipgrp[] = { "vipgrp" };
+static const char * const vipromgrp[] = { "vipromgrp" };
+static const char * const warm_rstgrp[] = { "warm_rstgrp" };
+static const char * const cko0grp[] = { "cko0grp" };
+static const char * const cko1grp[] = { "cko1grp" };
+static const char * const sdmmc0grp[] = { "sdmmc0grp" };
+static const char * const sdmmc1grp[] = { "sdmmc1grp" };
+static const char * const sdmmc2grp[] = { "sdmmc2grp" };
+static const char * const sdmmc3grp[] = { "sdmmc3grp" };
+static const char * const sdmmc4grp[] = { "sdmmc4grp" };
+static const char * const sdmmc5grp[] = { "sdmmc5grp" };
+static const char * const usb0_utmi_drvbusgrp[] = { "usb0_utmi_drvbusgrp" };
+static const char * const usb1_utmi_drvbusgrp[] = { "usb1_utmi_drvbusgrp" };
+static const char * const pulse_countgrp[] = { "pulse_countgrp" };
+static const char * const i2sgrp[] = { "i2sgrp" };
+static const char * const ac97grp[] = { "ac97grp" };
+static const char * const nandgrp[] = { "nandgrp" };
+static const char * const spi0grp[] = { "spi0grp" };
+static const char * const spi1grp[] = { "spi1grp" };
+static const char * const gpsgrp[] = { "gpsgrp" };
+
+#define SIRFSOC_PMX_FUNCTION(n, g, m)		\
+	{					\
+		.name = n,			\
+		.groups = g,			\
+		.num_groups = ARRAY_SIZE(g),	\
+		.padmux = &m,			\
+	}
+
+static const struct sirfsoc_pmx_func sirfsoc_pmx_functions[] = {
+	SIRFSOC_PMX_FUNCTION("lcd_16bits", lcd_16bitsgrp, lcd_16bits_padmux),
+	SIRFSOC_PMX_FUNCTION("lcd_18bits", lcd_18bitsgrp, lcd_18bits_padmux),
+	SIRFSOC_PMX_FUNCTION("lcd_24bits", lcd_24bitsgrp, lcd_24bits_padmux),
+	SIRFSOC_PMX_FUNCTION("lcdrom", lcdromgrp, lcdrom_padmux),
+	SIRFSOC_PMX_FUNCTION("uart0", uart0grp, uart0_padmux),
+	SIRFSOC_PMX_FUNCTION("uart1", uart1grp, uart1_padmux),
+	SIRFSOC_PMX_FUNCTION("uart2", uart2grp, uart2_padmux),
+	SIRFSOC_PMX_FUNCTION("uart2_nostreamctrl", uart2_nostreamctrlgrp, uart2_nostreamctrl_padmux),
+	SIRFSOC_PMX_FUNCTION("usp0", usp0grp, usp0_padmux),
+	SIRFSOC_PMX_FUNCTION("usp1", usp1grp, usp1_padmux),
+	SIRFSOC_PMX_FUNCTION("usp2", usp2grp, usp2_padmux),
+	SIRFSOC_PMX_FUNCTION("i2c0", i2c0grp, i2c0_padmux),
+	SIRFSOC_PMX_FUNCTION("i2c1", i2c1grp, i2c1_padmux),
+	SIRFSOC_PMX_FUNCTION("pwm0", pwm0grp, pwm0_padmux),
+	SIRFSOC_PMX_FUNCTION("pwm1", pwm1grp, pwm1_padmux),
+	SIRFSOC_PMX_FUNCTION("pwm2", pwm2grp, pwm2_padmux),
+	SIRFSOC_PMX_FUNCTION("pwm3", pwm3grp, pwm3_padmux),
+	SIRFSOC_PMX_FUNCTION("vip", vipgrp, vip_padmux),
+	SIRFSOC_PMX_FUNCTION("viprom", vipromgrp, viprom_padmux),
+	SIRFSOC_PMX_FUNCTION("warm_rst", warm_rstgrp, warm_rst_padmux),
+	SIRFSOC_PMX_FUNCTION("cko0", cko0grp, cko0_padmux),
+	SIRFSOC_PMX_FUNCTION("cko1", cko1grp, cko1_padmux),
+	SIRFSOC_PMX_FUNCTION("sdmmc0", sdmmc0grp, sdmmc0_padmux),
+	SIRFSOC_PMX_FUNCTION("sdmmc1", sdmmc1grp, sdmmc1_padmux),
+	SIRFSOC_PMX_FUNCTION("sdmmc2", sdmmc2grp, sdmmc2_padmux),
+	SIRFSOC_PMX_FUNCTION("sdmmc3", sdmmc3grp, sdmmc3_padmux),
+	SIRFSOC_PMX_FUNCTION("sdmmc4", sdmmc4grp, sdmmc4_padmux),
+	SIRFSOC_PMX_FUNCTION("sdmmc5", sdmmc5grp, sdmmc5_padmux),
+	SIRFSOC_PMX_FUNCTION("usb0_utmi_drvbus", usb0_utmi_drvbusgrp, usb0_utmi_drvbus_padmux),
+	SIRFSOC_PMX_FUNCTION("usb1_utmi_drvbus", usb1_utmi_drvbusgrp, usb1_utmi_drvbus_padmux),
+	SIRFSOC_PMX_FUNCTION("pulse_count", pulse_countgrp, pulse_count_padmux),
+	SIRFSOC_PMX_FUNCTION("i2s", i2sgrp, i2s_padmux),
+	SIRFSOC_PMX_FUNCTION("ac97", ac97grp, ac97_padmux),
+	SIRFSOC_PMX_FUNCTION("nand", nandgrp, nand_padmux),
+	SIRFSOC_PMX_FUNCTION("spi0", spi0grp, spi0_padmux),
+	SIRFSOC_PMX_FUNCTION("spi1", spi1grp, spi1_padmux),
+	SIRFSOC_PMX_FUNCTION("gps", gpsgrp, gps_padmux),
+};
+
+static void sirfsoc_pinmux_endisable(struct sirfsoc_pmx *spmx, unsigned selector,
+	bool enable)
+{
+	int i;
+	const struct sirfsoc_padmux *mux = sirfsoc_pmx_functions[selector].padmux;
+	const struct sirfsoc_muxmask *mask = mux->muxmask;
+
+	for (i = 0; i < mux->muxmask_counts; i++) {
+		u32 muxval;
+		muxval = readl(spmx->gpio_virtbase + SIRFSOC_GPIO_PAD_EN(mask[i].group));
+		if (enable)
+			muxval = muxval & ~mask[i].mask;
+		else
+			muxval = muxval | mask[i].mask;
+		writel(muxval, spmx->gpio_virtbase + SIRFSOC_GPIO_PAD_EN(mask[i].group));
+	}
+
+	if (mux->funcmask && enable) {
+		u32 func_en_val;
+		func_en_val =
+			readl(spmx->rsc_virtbase + SIRFSOC_RSC_PIN_MUX);
+		func_en_val =
+			(func_en_val & ~mux->funcmask) | (mux->
+				funcval);
+		writel(func_en_val, spmx->rsc_virtbase + SIRFSOC_RSC_PIN_MUX);
+	}
+}
+
+static int sirfsoc_pinmux_enable(struct pinctrl_dev *pmxdev, unsigned selector,
+	unsigned group)
+{
+	struct sirfsoc_pmx *spmx;
+
+	spmx = pinctrl_dev_get_drvdata(pmxdev);
+	sirfsoc_pinmux_endisable(spmx, selector, true);
+
+	return 0;
+}
+
+static void sirfsoc_pinmux_disable(struct pinctrl_dev *pmxdev, unsigned selector,
+	unsigned group)
+{
+	struct sirfsoc_pmx *spmx;
+
+	spmx = pinctrl_dev_get_drvdata(pmxdev);
+	sirfsoc_pinmux_endisable(spmx, selector, false);
+}
+
+static int sirfsoc_pinmux_list_funcs(struct pinctrl_dev *pmxdev, unsigned selector)
+{
+	if (selector >= ARRAY_SIZE(sirfsoc_pmx_functions))
+		return -EINVAL;
+	return 0;
+}
+
+static const char *sirfsoc_pinmux_get_func_name(struct pinctrl_dev *pctldev,
+					  unsigned selector)
+{
+	return sirfsoc_pmx_functions[selector].name;
+}
+
+static int sirfsoc_pinmux_get_groups(struct pinctrl_dev *pctldev, unsigned selector,
+			       const char * const **groups,
+			       unsigned * const num_groups)
+{
+	*groups = sirfsoc_pmx_functions[selector].groups;
+	*num_groups = sirfsoc_pmx_functions[selector].num_groups;
+	return 0;
+}
+
+static int sirfsoc_pinmux_request_gpio(struct pinctrl_dev *pmxdev,
+	struct pinctrl_gpio_range *range, unsigned offset)
+{
+	struct sirfsoc_pmx *spmx;
+
+	int group = range->id;
+
+	u32 muxval;
+
+	spmx = pinctrl_dev_get_drvdata(pmxdev);
+
+	muxval = readl(spmx->gpio_virtbase + SIRFSOC_GPIO_PAD_EN(group));
+	muxval = muxval | (1 << offset);
+	writel(muxval, spmx->gpio_virtbase + SIRFSOC_GPIO_PAD_EN(group));
+
+	return 0;
+}
+
+static struct pinmux_ops sirfsoc_pinmux_ops = {
+	.list_functions = sirfsoc_pinmux_list_funcs,
+	.enable = sirfsoc_pinmux_enable,
+	.disable = sirfsoc_pinmux_disable,
+	.get_function_name = sirfsoc_pinmux_get_func_name,
+	.get_function_groups = sirfsoc_pinmux_get_groups,
+	.gpio_request_enable = sirfsoc_pinmux_request_gpio,
+};
+
+static struct pinctrl_desc sirfsoc_pinmux_desc = {
+	.name = DRIVER_NAME,
+	.pins = sirfsoc_pads,
+	.npins = ARRAY_SIZE(sirfsoc_pads),
+	.maxpin = SIRFSOC_NUM_PADS - 1,
+	.pctlops = &sirfsoc_pctrl_ops,
+	.pmxops = &sirfsoc_pinmux_ops,
+	.owner = THIS_MODULE,
+};
+
+/*
+ * Todo: bind irq_chip to every pinctrl_gpio_range
+ */
+static struct pinctrl_gpio_range sirfsoc_gpio_ranges[] = {
+	{
+		.name = "sirfsoc-gpio*",
+		.id = 0,
+		.base = 0,
+		.npins = 32,
+	}, {
+		.name = "sirfsoc-gpio*",
+		.id = 1,
+		.base = 32,
+		.npins = 32,
+	}, {
+		.name = "sirfsoc-gpio*",
+		.id = 2,
+		.base = 64,
+		.npins = 32,
+	}, {
+		.name = "sirfsoc-gpio*",
+		.id = 3,
+		.base = 96,
+		.npins = 19,
+	},
+};
+
+static void __iomem *sirfsoc_rsc_of_iomap(void)
+{
+	const struct of_device_id rsc_ids[]  = {
+		{ .compatible = "sirf,prima2-rsc" },
+		{}
+	};
+	struct device_node *np;
+
+	np = of_find_matching_node(NULL, rsc_ids);
+	if (!np)
+		panic("unable to find compatible rsc node in dtb\n");
+
+	return of_iomap(np, 0);
+}
+
+static int __devinit sirfsoc_pinmux_probe(struct platform_device *pdev)
+{
+	int ret;
+	struct sirfsoc_pmx *spmx;
+	struct device_node *np = pdev->dev.of_node;
+	int i;
+
+	/* Create state holders etc for this driver */
+	spmx = devm_kzalloc(&pdev->dev, sizeof(*spmx), GFP_KERNEL);
+	if (!spmx)
+		return -ENOMEM;
+
+	spmx->dev = &pdev->dev;
+
+	platform_set_drvdata(pdev, spmx);
+
+	spmx->gpio_virtbase = of_iomap(np, 0);
+	if (!spmx->gpio_virtbase) {
+		ret = -ENOMEM;
+		dev_err(&pdev->dev, "can't map gpio registers\n");
+		goto out_no_gpio_remap;
+	}
+
+	spmx->rsc_virtbase = sirfsoc_rsc_of_iomap();
+	if (!spmx->rsc_virtbase) {
+		ret = -ENOMEM;
+		dev_err(&pdev->dev, "can't map rsc registers\n");
+		goto out_no_rsc_remap;
+	}
+
+	/* Now register the pin controller and all pins it handles */
+	spmx->pmx = pinctrl_register(&sirfsoc_pinmux_desc, &pdev->dev, spmx);
+	if (!spmx->pmx) {
+		dev_err(&pdev->dev, "could not register SIRFSOC pinmux driver\n");
+		ret = -EINVAL;
+		goto out_no_pmx;
+	}
+
+	for (i = 0; i < ARRAY_SIZE(sirfsoc_gpio_ranges); i++)
+		pinctrl_add_gpio_range(spmx->pmx, &sirfsoc_gpio_ranges[i]);
+
+	dev_info(&pdev->dev, "initialized SIRFSOC pinmux driver\n");
+
+	return 0;
+
+out_no_pmx:
+	iounmap(spmx->rsc_virtbase);
+out_no_rsc_remap:
+	iounmap(spmx->gpio_virtbase);
+out_no_gpio_remap:
+	platform_set_drvdata(pdev, NULL);
+	devm_kfree(&pdev->dev, spmx);
+	return ret;
+}
+
+static const struct of_device_id pinmux_ids[]  = {
+	{ .compatible = "sirf,prima2-gpio-pinmux" },
+	{}
+};
+
+static struct platform_driver sirfsoc_pinmux_driver = {
+	.driver = {
+		.name = DRIVER_NAME,
+		.owner = THIS_MODULE,
+		.of_match_table = pinmux_ids,
+	},
+	.probe = sirfsoc_pinmux_probe,
+};
+
+static int __init sirfsoc_pinmux_init(void)
+{
+	return platform_driver_register(&sirfsoc_pinmux_driver);
+}
+arch_initcall(sirfsoc_pinmux_init);
+
+MODULE_AUTHOR("Rongjun Ying <rongjun.ying@csr.com>, "
+	"Barry Song <baohua.song@csr.com>");
+MODULE_DESCRIPTION("SIRFSOC pin control driver");
+MODULE_LICENSE("GPL");
diff --git a/drivers/pinctrl/pinmux-u300.c b/drivers/pinctrl/pinmux-u300.c
new file mode 100644
index 000000000000..4858a64131f8
--- /dev/null
+++ b/drivers/pinctrl/pinmux-u300.c
@@ -0,0 +1,1135 @@
+/*
+ * Driver for the U300 pin controller
+ *
+ * Based on the original U300 padmux functions
+ * Copyright (C) 2009-2011 ST-Ericsson AB
+ * Author: Martin Persson <martin.persson@stericsson.com>
+ * Author: Linus Walleij <linus.walleij@linaro.org>
+ *
+ * The DB3350 design and control registers are oriented around pads rather than
+ * pins, so we enumerate the pads we can mux rather than actual pins. The pads
+ * are connected to different pins in different packaging types, so it would
+ * be confusing.
+ */
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/io.h>
+#include <linux/slab.h>
+#include <linux/err.h>
+#include <linux/pinctrl/pinctrl.h>
+#include <linux/pinctrl/pinmux.h>
+
+/*
+ * Register definitions for the U300 Padmux control registers in the
+ * system controller
+ */
+
+/* PAD MUX Control register 1 (LOW) 16bit (R/W) */
+#define U300_SYSCON_PMC1LR					0x007C
+#define U300_SYSCON_PMC1LR_MASK					0xFFFF
+#define U300_SYSCON_PMC1LR_CDI_MASK				0xC000
+#define U300_SYSCON_PMC1LR_CDI_CDI				0x0000
+#define U300_SYSCON_PMC1LR_CDI_EMIF				0x4000
+/* For BS335 */
+#define U300_SYSCON_PMC1LR_CDI_CDI2				0x8000
+#define U300_SYSCON_PMC1LR_CDI_WCDMA_APP_GPIO			0xC000
+/* For BS365 */
+#define U300_SYSCON_PMC1LR_CDI_GPIO				0x8000
+#define U300_SYSCON_PMC1LR_CDI_WCDMA				0xC000
+/* Common defs */
+#define U300_SYSCON_PMC1LR_PDI_MASK				0x3000
+#define U300_SYSCON_PMC1LR_PDI_PDI				0x0000
+#define U300_SYSCON_PMC1LR_PDI_EGG				0x1000
+#define U300_SYSCON_PMC1LR_PDI_WCDMA				0x3000
+#define U300_SYSCON_PMC1LR_MMCSD_MASK				0x0C00
+#define U300_SYSCON_PMC1LR_MMCSD_MMCSD				0x0000
+#define U300_SYSCON_PMC1LR_MMCSD_MSPRO				0x0400
+#define U300_SYSCON_PMC1LR_MMCSD_DSP				0x0800
+#define U300_SYSCON_PMC1LR_MMCSD_WCDMA				0x0C00
+#define U300_SYSCON_PMC1LR_ETM_MASK				0x0300
+#define U300_SYSCON_PMC1LR_ETM_ACC				0x0000
+#define U300_SYSCON_PMC1LR_ETM_APP				0x0100
+#define U300_SYSCON_PMC1LR_EMIF_1_CS2_MASK			0x00C0
+#define U300_SYSCON_PMC1LR_EMIF_1_CS2_STATIC			0x0000
+#define U300_SYSCON_PMC1LR_EMIF_1_CS2_NFIF			0x0040
+#define U300_SYSCON_PMC1LR_EMIF_1_CS2_SDRAM			0x0080
+#define U300_SYSCON_PMC1LR_EMIF_1_CS2_STATIC_2GB		0x00C0
+#define U300_SYSCON_PMC1LR_EMIF_1_CS1_MASK			0x0030
+#define U300_SYSCON_PMC1LR_EMIF_1_CS1_STATIC			0x0000
+#define U300_SYSCON_PMC1LR_EMIF_1_CS1_NFIF			0x0010
+#define U300_SYSCON_PMC1LR_EMIF_1_CS1_SDRAM			0x0020
+#define U300_SYSCON_PMC1LR_EMIF_1_CS1_SEMI			0x0030
+#define U300_SYSCON_PMC1LR_EMIF_1_CS0_MASK			0x000C
+#define U300_SYSCON_PMC1LR_EMIF_1_CS0_STATIC			0x0000
+#define U300_SYSCON_PMC1LR_EMIF_1_CS0_NFIF			0x0004
+#define U300_SYSCON_PMC1LR_EMIF_1_CS0_SDRAM			0x0008
+#define U300_SYSCON_PMC1LR_EMIF_1_CS0_SEMI			0x000C
+#define U300_SYSCON_PMC1LR_EMIF_1_MASK				0x0003
+#define U300_SYSCON_PMC1LR_EMIF_1_STATIC			0x0000
+#define U300_SYSCON_PMC1LR_EMIF_1_SDRAM0			0x0001
+#define U300_SYSCON_PMC1LR_EMIF_1_SDRAM1			0x0002
+#define U300_SYSCON_PMC1LR_EMIF_1				0x0003
+/* PAD MUX Control register 2 (HIGH) 16bit (R/W) */
+#define U300_SYSCON_PMC1HR					0x007E
+#define U300_SYSCON_PMC1HR_MASK					0xFFFF
+#define U300_SYSCON_PMC1HR_MISC_2_MASK				0xC000
+#define U300_SYSCON_PMC1HR_MISC_2_APP_GPIO			0x0000
+#define U300_SYSCON_PMC1HR_MISC_2_MSPRO				0x4000
+#define U300_SYSCON_PMC1HR_MISC_2_DSP				0x8000
+#define U300_SYSCON_PMC1HR_MISC_2_AAIF				0xC000
+#define U300_SYSCON_PMC1HR_APP_GPIO_2_MASK			0x3000
+#define U300_SYSCON_PMC1HR_APP_GPIO_2_APP_GPIO			0x0000
+#define U300_SYSCON_PMC1HR_APP_GPIO_2_NFIF			0x1000
+#define U300_SYSCON_PMC1HR_APP_GPIO_2_DSP			0x2000
+#define U300_SYSCON_PMC1HR_APP_GPIO_2_AAIF			0x3000
+#define U300_SYSCON_PMC1HR_APP_GPIO_1_MASK			0x0C00
+#define U300_SYSCON_PMC1HR_APP_GPIO_1_APP_GPIO			0x0000
+#define U300_SYSCON_PMC1HR_APP_GPIO_1_MMC			0x0400
+#define U300_SYSCON_PMC1HR_APP_GPIO_1_DSP			0x0800
+#define U300_SYSCON_PMC1HR_APP_GPIO_1_AAIF			0x0C00
+#define U300_SYSCON_PMC1HR_APP_SPI_CS_2_MASK			0x0300
+#define U300_SYSCON_PMC1HR_APP_SPI_CS_2_APP_GPIO		0x0000
+#define U300_SYSCON_PMC1HR_APP_SPI_CS_2_SPI			0x0100
+#define U300_SYSCON_PMC1HR_APP_SPI_CS_2_AAIF			0x0300
+#define U300_SYSCON_PMC1HR_APP_SPI_CS_1_MASK			0x00C0
+#define U300_SYSCON_PMC1HR_APP_SPI_CS_1_APP_GPIO		0x0000
+#define U300_SYSCON_PMC1HR_APP_SPI_CS_1_SPI			0x0040
+#define U300_SYSCON_PMC1HR_APP_SPI_CS_1_AAIF			0x00C0
+#define U300_SYSCON_PMC1HR_APP_SPI_2_MASK			0x0030
+#define U300_SYSCON_PMC1HR_APP_SPI_2_APP_GPIO			0x0000
+#define U300_SYSCON_PMC1HR_APP_SPI_2_SPI			0x0010
+#define U300_SYSCON_PMC1HR_APP_SPI_2_DSP			0x0020
+#define U300_SYSCON_PMC1HR_APP_SPI_2_AAIF			0x0030
+#define U300_SYSCON_PMC1HR_APP_UART0_2_MASK			0x000C
+#define U300_SYSCON_PMC1HR_APP_UART0_2_APP_GPIO			0x0000
+#define U300_SYSCON_PMC1HR_APP_UART0_2_UART0			0x0004
+#define U300_SYSCON_PMC1HR_APP_UART0_2_NFIF_CS			0x0008
+#define U300_SYSCON_PMC1HR_APP_UART0_2_AAIF			0x000C
+#define U300_SYSCON_PMC1HR_APP_UART0_1_MASK			0x0003
+#define U300_SYSCON_PMC1HR_APP_UART0_1_APP_GPIO			0x0000
+#define U300_SYSCON_PMC1HR_APP_UART0_1_UART0			0x0001
+#define U300_SYSCON_PMC1HR_APP_UART0_1_AAIF			0x0003
+/* Padmux 2 control */
+#define U300_SYSCON_PMC2R					0x100
+#define U300_SYSCON_PMC2R_APP_MISC_0_MASK			0x00C0
+#define U300_SYSCON_PMC2R_APP_MISC_0_APP_GPIO			0x0000
+#define U300_SYSCON_PMC2R_APP_MISC_0_EMIF_SDRAM			0x0040
+#define U300_SYSCON_PMC2R_APP_MISC_0_MMC			0x0080
+#define U300_SYSCON_PMC2R_APP_MISC_0_CDI2			0x00C0
+#define U300_SYSCON_PMC2R_APP_MISC_1_MASK			0x0300
+#define U300_SYSCON_PMC2R_APP_MISC_1_APP_GPIO			0x0000
+#define U300_SYSCON_PMC2R_APP_MISC_1_EMIF_SDRAM			0x0100
+#define U300_SYSCON_PMC2R_APP_MISC_1_MMC			0x0200
+#define U300_SYSCON_PMC2R_APP_MISC_1_CDI2			0x0300
+#define U300_SYSCON_PMC2R_APP_MISC_2_MASK			0x0C00
+#define U300_SYSCON_PMC2R_APP_MISC_2_APP_GPIO			0x0000
+#define U300_SYSCON_PMC2R_APP_MISC_2_EMIF_SDRAM			0x0400
+#define U300_SYSCON_PMC2R_APP_MISC_2_MMC			0x0800
+#define U300_SYSCON_PMC2R_APP_MISC_2_CDI2			0x0C00
+#define U300_SYSCON_PMC2R_APP_MISC_3_MASK			0x3000
+#define U300_SYSCON_PMC2R_APP_MISC_3_APP_GPIO			0x0000
+#define U300_SYSCON_PMC2R_APP_MISC_3_EMIF_SDRAM			0x1000
+#define U300_SYSCON_PMC2R_APP_MISC_3_MMC			0x2000
+#define U300_SYSCON_PMC2R_APP_MISC_3_CDI2			0x3000
+#define U300_SYSCON_PMC2R_APP_MISC_4_MASK			0xC000
+#define U300_SYSCON_PMC2R_APP_MISC_4_APP_GPIO			0x0000
+#define U300_SYSCON_PMC2R_APP_MISC_4_EMIF_SDRAM			0x4000
+#define U300_SYSCON_PMC2R_APP_MISC_4_MMC			0x8000
+#define U300_SYSCON_PMC2R_APP_MISC_4_ACC_GPIO			0xC000
+/* TODO: More SYSCON registers missing */
+#define U300_SYSCON_PMC3R					0x10C
+#define U300_SYSCON_PMC3R_APP_MISC_11_MASK			0xC000
+#define U300_SYSCON_PMC3R_APP_MISC_11_SPI			0x4000
+#define U300_SYSCON_PMC3R_APP_MISC_10_MASK			0x3000
+#define U300_SYSCON_PMC3R_APP_MISC_10_SPI			0x1000
+/* TODO: Missing other configs */
+#define U300_SYSCON_PMC4R					0x168
+#define U300_SYSCON_PMC4R_APP_MISC_12_MASK			0x0003
+#define U300_SYSCON_PMC4R_APP_MISC_12_APP_GPIO			0x0000
+#define U300_SYSCON_PMC4R_APP_MISC_13_MASK			0x000C
+#define U300_SYSCON_PMC4R_APP_MISC_13_CDI			0x0000
+#define U300_SYSCON_PMC4R_APP_MISC_13_SMIA			0x0004
+#define U300_SYSCON_PMC4R_APP_MISC_13_SMIA2			0x0008
+#define U300_SYSCON_PMC4R_APP_MISC_13_APP_GPIO			0x000C
+#define U300_SYSCON_PMC4R_APP_MISC_14_MASK			0x0030
+#define U300_SYSCON_PMC4R_APP_MISC_14_CDI			0x0000
+#define U300_SYSCON_PMC4R_APP_MISC_14_SMIA			0x0010
+#define U300_SYSCON_PMC4R_APP_MISC_14_CDI2			0x0020
+#define U300_SYSCON_PMC4R_APP_MISC_14_APP_GPIO			0x0030
+#define U300_SYSCON_PMC4R_APP_MISC_16_MASK			0x0300
+#define U300_SYSCON_PMC4R_APP_MISC_16_APP_GPIO_13		0x0000
+#define U300_SYSCON_PMC4R_APP_MISC_16_APP_UART1_CTS		0x0100
+#define U300_SYSCON_PMC4R_APP_MISC_16_EMIF_1_STATIC_CS5_N	0x0200
+
+#define DRIVER_NAME "pinmux-u300"
+
+/*
+ * The DB3350 has 467 pads, I have enumerated the pads clockwise around the
+ * edges of the silicon, finger by finger. LTCORNER upper left is pad 0.
+ * Data taken from the PadRing chart, arranged like this:
+ *
+ *   0 ..... 104
+ * 466        105
+ *   .        .
+ *   .        .
+ * 358        224
+ *  357 .... 225
+ */
+#define U300_NUM_PADS 467
+
+/* Pad names for the pinmux subsystem */
+static const struct pinctrl_pin_desc u300_pads[] = {
+	/* Pads along the top edge of the chip */
+	PINCTRL_PIN(0, "P PAD VDD 28"),
+	PINCTRL_PIN(1, "P PAD GND 28"),
+	PINCTRL_PIN(2, "PO SIM RST N"),
+	PINCTRL_PIN(3, "VSSIO 25"),
+	PINCTRL_PIN(4, "VSSA ADDA ESDSUB"),
+	PINCTRL_PIN(5, "PWR VSSCOMMON"),
+	PINCTRL_PIN(6, "PI ADC I1 POS"),
+	PINCTRL_PIN(7, "PI ADC I1 NEG"),
+	PINCTRL_PIN(8, "PWR VSSAD0"),
+	PINCTRL_PIN(9, "PWR VCCAD0"),
+	PINCTRL_PIN(10, "PI ADC Q1 NEG"),
+	PINCTRL_PIN(11, "PI ADC Q1 POS"),
+	PINCTRL_PIN(12, "PWR VDDAD"),
+	PINCTRL_PIN(13, "PWR GNDAD"),
+	PINCTRL_PIN(14, "PI ADC I2 POS"),
+	PINCTRL_PIN(15, "PI ADC I2 NEG"),
+	PINCTRL_PIN(16, "PWR VSSAD1"),
+	PINCTRL_PIN(17, "PWR VCCAD1"),
+	PINCTRL_PIN(18, "PI ADC Q2 NEG"),
+	PINCTRL_PIN(19, "PI ADC Q2 POS"),
+	PINCTRL_PIN(20, "VSSA ADDA ESDSUB"),
+	PINCTRL_PIN(21, "PWR VCCGPAD"),
+	PINCTRL_PIN(22, "PI TX POW"),
+	PINCTRL_PIN(23, "PWR VSSGPAD"),
+	PINCTRL_PIN(24, "PO DAC I POS"),
+	PINCTRL_PIN(25, "PO DAC I NEG"),
+	PINCTRL_PIN(26, "PO DAC Q POS"),
+	PINCTRL_PIN(27, "PO DAC Q NEG"),
+	PINCTRL_PIN(28, "PWR VSSDA"),
+	PINCTRL_PIN(29, "PWR VCCDA"),
+	PINCTRL_PIN(30, "VSSA ADDA ESDSUB"),
+	PINCTRL_PIN(31, "P PAD VDDIO 11"),
+	PINCTRL_PIN(32, "PI PLL 26 FILTVDD"),
+	PINCTRL_PIN(33, "PI PLL 26 VCONT"),
+	PINCTRL_PIN(34, "PWR AGNDPLL2V5 32 13"),
+	PINCTRL_PIN(35, "PWR AVDDPLL2V5 32 13"),
+	PINCTRL_PIN(36, "VDDA PLL ESD"),
+	PINCTRL_PIN(37, "VSSA PLL ESD"),
+	PINCTRL_PIN(38, "VSS PLL"),
+	PINCTRL_PIN(39, "VDDC PLL"),
+	PINCTRL_PIN(40, "PWR AGNDPLL2V5 26 60"),
+	PINCTRL_PIN(41, "PWR AVDDPLL2V5 26 60"),
+	PINCTRL_PIN(42, "PWR AVDDPLL2V5 26 208"),
+	PINCTRL_PIN(43, "PWR AGNDPLL2V5 26 208"),
+	PINCTRL_PIN(44, "PWR AVDDPLL2V5 13 208"),
+	PINCTRL_PIN(45, "PWR AGNDPLL2V5 13 208"),
+	PINCTRL_PIN(46, "P PAD VSSIO 11"),
+	PINCTRL_PIN(47, "P PAD VSSIO 12"),
+	PINCTRL_PIN(48, "PI POW RST N"),
+	PINCTRL_PIN(49, "VDDC IO"),
+	PINCTRL_PIN(50, "P PAD VDDIO 16"),
+	PINCTRL_PIN(51, "PO RF WCDMA EN 4"),
+	PINCTRL_PIN(52, "PO RF WCDMA EN 3"),
+	PINCTRL_PIN(53, "PO RF WCDMA EN 2"),
+	PINCTRL_PIN(54, "PO RF WCDMA EN 1"),
+	PINCTRL_PIN(55, "PO RF WCDMA EN 0"),
+	PINCTRL_PIN(56, "PO GSM PA ENABLE"),
+	PINCTRL_PIN(57, "PO RF DATA STRB"),
+	PINCTRL_PIN(58, "PO RF DATA2"),
+	PINCTRL_PIN(59, "PIO RF DATA1"),
+	PINCTRL_PIN(60, "PIO RF DATA0"),
+	PINCTRL_PIN(61, "P PAD VDD 11"),
+	PINCTRL_PIN(62, "P PAD GND 11"),
+	PINCTRL_PIN(63, "P PAD VSSIO 16"),
+	PINCTRL_PIN(64, "P PAD VDDIO 18"),
+	PINCTRL_PIN(65, "PO RF CTRL STRB2"),
+	PINCTRL_PIN(66, "PO RF CTRL STRB1"),
+	PINCTRL_PIN(67, "PO RF CTRL STRB0"),
+	PINCTRL_PIN(68, "PIO RF CTRL DATA"),
+	PINCTRL_PIN(69, "PO RF CTRL CLK"),
+	PINCTRL_PIN(70, "PO TX ADC STRB"),
+	PINCTRL_PIN(71, "PO ANT SW 2"),
+	PINCTRL_PIN(72, "PO ANT SW 3"),
+	PINCTRL_PIN(73, "PO ANT SW 0"),
+	PINCTRL_PIN(74, "PO ANT SW 1"),
+	PINCTRL_PIN(75, "PO M CLKRQ"),
+	PINCTRL_PIN(76, "PI M CLK"),
+	PINCTRL_PIN(77, "PI RTC CLK"),
+	PINCTRL_PIN(78, "P PAD VDD 8"),
+	PINCTRL_PIN(79, "P PAD GND 8"),
+	PINCTRL_PIN(80, "P PAD VSSIO 13"),
+	PINCTRL_PIN(81, "P PAD VDDIO 13"),
+	PINCTRL_PIN(82, "PO SYS 1 CLK"),
+	PINCTRL_PIN(83, "PO SYS 2 CLK"),
+	PINCTRL_PIN(84, "PO SYS 0 CLK"),
+	PINCTRL_PIN(85, "PI SYS 0 CLKRQ"),
+	PINCTRL_PIN(86, "PO PWR MNGT CTRL 1"),
+	PINCTRL_PIN(87, "PO PWR MNGT CTRL 0"),
+	PINCTRL_PIN(88, "PO RESOUT2 RST N"),
+	PINCTRL_PIN(89, "PO RESOUT1 RST N"),
+	PINCTRL_PIN(90, "PO RESOUT0 RST N"),
+	PINCTRL_PIN(91, "PI SERVICE N"),
+	PINCTRL_PIN(92, "P PAD VDD 29"),
+	PINCTRL_PIN(93, "P PAD GND 29"),
+	PINCTRL_PIN(94, "P PAD VSSIO 8"),
+	PINCTRL_PIN(95, "P PAD VDDIO 8"),
+	PINCTRL_PIN(96, "PI EXT IRQ1 N"),
+	PINCTRL_PIN(97, "PI EXT IRQ0 N"),
+	PINCTRL_PIN(98, "PIO DC ON"),
+	PINCTRL_PIN(99, "PIO ACC APP I2C DATA"),
+	PINCTRL_PIN(100, "PIO ACC APP I2C CLK"),
+	PINCTRL_PIN(101, "P PAD VDD 12"),
+	PINCTRL_PIN(102, "P PAD GND 12"),
+	PINCTRL_PIN(103, "P PAD VSSIO 14"),
+	PINCTRL_PIN(104, "P PAD VDDIO 14"),
+	/* Pads along the right edge of the chip */
+	PINCTRL_PIN(105, "PIO APP I2C1 DATA"),
+	PINCTRL_PIN(106, "PIO APP I2C1 CLK"),
+	PINCTRL_PIN(107, "PO KEY OUT0"),
+	PINCTRL_PIN(108, "PO KEY OUT1"),
+	PINCTRL_PIN(109, "PO KEY OUT2"),
+	PINCTRL_PIN(110, "PO KEY OUT3"),
+	PINCTRL_PIN(111, "PO KEY OUT4"),
+	PINCTRL_PIN(112, "PI KEY IN0"),
+	PINCTRL_PIN(113, "PI KEY IN1"),
+	PINCTRL_PIN(114, "PI KEY IN2"),
+	PINCTRL_PIN(115, "P PAD VDDIO 15"),
+	PINCTRL_PIN(116, "P PAD VSSIO 15"),
+	PINCTRL_PIN(117, "P PAD GND 13"),
+	PINCTRL_PIN(118, "P PAD VDD 13"),
+	PINCTRL_PIN(119, "PI KEY IN3"),
+	PINCTRL_PIN(120, "PI KEY IN4"),
+	PINCTRL_PIN(121, "PI KEY IN5"),
+	PINCTRL_PIN(122, "PIO APP PCM I2S1 DATA B"),
+	PINCTRL_PIN(123, "PIO APP PCM I2S1 DATA A"),
+	PINCTRL_PIN(124, "PIO APP PCM I2S1 WS"),
+	PINCTRL_PIN(125, "PIO APP PCM I2S1 CLK"),
+	PINCTRL_PIN(126, "PIO APP PCM I2S0 DATA B"),
+	PINCTRL_PIN(127, "PIO APP PCM I2S0 DATA A"),
+	PINCTRL_PIN(128, "PIO APP PCM I2S0 WS"),
+	PINCTRL_PIN(129, "PIO APP PCM I2S0 CLK"),
+	PINCTRL_PIN(130, "P PAD VDD 17"),
+	PINCTRL_PIN(131, "P PAD GND 17"),
+	PINCTRL_PIN(132, "P PAD VSSIO 19"),
+	PINCTRL_PIN(133, "P PAD VDDIO 19"),
+	PINCTRL_PIN(134, "UART0 RTS"),
+	PINCTRL_PIN(135, "UART0 CTS"),
+	PINCTRL_PIN(136, "UART0 TX"),
+	PINCTRL_PIN(137, "UART0 RX"),
+	PINCTRL_PIN(138, "PIO ACC SPI DO"),
+	PINCTRL_PIN(139, "PIO ACC SPI DI"),
+	PINCTRL_PIN(140, "PIO ACC SPI CS0 N"),
+	PINCTRL_PIN(141, "PIO ACC SPI CS1 N"),
+	PINCTRL_PIN(142, "PIO ACC SPI CS2 N"),
+	PINCTRL_PIN(143, "PIO ACC SPI CLK"),
+	PINCTRL_PIN(144, "PO PDI EXT RST N"),
+	PINCTRL_PIN(145, "P PAD VDDIO 22"),
+	PINCTRL_PIN(146, "P PAD VSSIO 22"),
+	PINCTRL_PIN(147, "P PAD GND 18"),
+	PINCTRL_PIN(148, "P PAD VDD 18"),
+	PINCTRL_PIN(149, "PIO PDI C0"),
+	PINCTRL_PIN(150, "PIO PDI C1"),
+	PINCTRL_PIN(151, "PIO PDI C2"),
+	PINCTRL_PIN(152, "PIO PDI C3"),
+	PINCTRL_PIN(153, "PIO PDI C4"),
+	PINCTRL_PIN(154, "PIO PDI C5"),
+	PINCTRL_PIN(155, "PIO PDI D0"),
+	PINCTRL_PIN(156, "PIO PDI D1"),
+	PINCTRL_PIN(157, "PIO PDI D2"),
+	PINCTRL_PIN(158, "PIO PDI D3"),
+	PINCTRL_PIN(159, "P PAD VDDIO 21"),
+	PINCTRL_PIN(160, "P PAD VSSIO 21"),
+	PINCTRL_PIN(161, "PIO PDI D4"),
+	PINCTRL_PIN(162, "PIO PDI D5"),
+	PINCTRL_PIN(163, "PIO PDI D6"),
+	PINCTRL_PIN(164, "PIO PDI D7"),
+	PINCTRL_PIN(165, "PIO MS INS"),
+	PINCTRL_PIN(166, "MMC DATA DIR LS"),
+	PINCTRL_PIN(167, "MMC DATA 3"),
+	PINCTRL_PIN(168, "MMC DATA 2"),
+	PINCTRL_PIN(169, "MMC DATA 1"),
+	PINCTRL_PIN(170, "MMC DATA 0"),
+	PINCTRL_PIN(171, "MMC CMD DIR LS"),
+	PINCTRL_PIN(172, "P PAD VDD 27"),
+	PINCTRL_PIN(173, "P PAD GND 27"),
+	PINCTRL_PIN(174, "P PAD VSSIO 20"),
+	PINCTRL_PIN(175, "P PAD VDDIO 20"),
+	PINCTRL_PIN(176, "MMC CMD"),
+	PINCTRL_PIN(177, "MMC CLK"),
+	PINCTRL_PIN(178, "PIO APP GPIO 14"),
+	PINCTRL_PIN(179, "PIO APP GPIO 13"),
+	PINCTRL_PIN(180, "PIO APP GPIO 11"),
+	PINCTRL_PIN(181, "PIO APP GPIO 25"),
+	PINCTRL_PIN(182, "PIO APP GPIO 24"),
+	PINCTRL_PIN(183, "PIO APP GPIO 23"),
+	PINCTRL_PIN(184, "PIO APP GPIO 22"),
+	PINCTRL_PIN(185, "PIO APP GPIO 21"),
+	PINCTRL_PIN(186, "PIO APP GPIO 20"),
+	PINCTRL_PIN(187, "P PAD VDD 19"),
+	PINCTRL_PIN(188, "P PAD GND 19"),
+	PINCTRL_PIN(189, "P PAD VSSIO 23"),
+	PINCTRL_PIN(190, "P PAD VDDIO 23"),
+	PINCTRL_PIN(191, "PIO APP GPIO 19"),
+	PINCTRL_PIN(192, "PIO APP GPIO 18"),
+	PINCTRL_PIN(193, "PIO APP GPIO 17"),
+	PINCTRL_PIN(194, "PIO APP GPIO 16"),
+	PINCTRL_PIN(195, "PI CI D1"),
+	PINCTRL_PIN(196, "PI CI D0"),
+	PINCTRL_PIN(197, "PI CI HSYNC"),
+	PINCTRL_PIN(198, "PI CI VSYNC"),
+	PINCTRL_PIN(199, "PI CI EXT CLK"),
+	PINCTRL_PIN(200, "PO CI EXT RST N"),
+	PINCTRL_PIN(201, "P PAD VSSIO 43"),
+	PINCTRL_PIN(202, "P PAD VDDIO 43"),
+	PINCTRL_PIN(203, "PI CI D6"),
+	PINCTRL_PIN(204, "PI CI D7"),
+	PINCTRL_PIN(205, "PI CI D2"),
+	PINCTRL_PIN(206, "PI CI D3"),
+	PINCTRL_PIN(207, "PI CI D4"),
+	PINCTRL_PIN(208, "PI CI D5"),
+	PINCTRL_PIN(209, "PI CI D8"),
+	PINCTRL_PIN(210, "PI CI D9"),
+	PINCTRL_PIN(211, "P PAD VDD 20"),
+	PINCTRL_PIN(212, "P PAD GND 20"),
+	PINCTRL_PIN(213, "P PAD VSSIO 24"),
+	PINCTRL_PIN(214, "P PAD VDDIO 24"),
+	PINCTRL_PIN(215, "P PAD VDDIO 26"),
+	PINCTRL_PIN(216, "PO EMIF 1 A26"),
+	PINCTRL_PIN(217, "PO EMIF 1 A25"),
+	PINCTRL_PIN(218, "P PAD VSSIO 26"),
+	PINCTRL_PIN(219, "PO EMIF 1 A24"),
+	PINCTRL_PIN(220, "PO EMIF 1 A23"),
+	/* Pads along the bottom edge of the chip */
+	PINCTRL_PIN(221, "PO EMIF 1 A22"),
+	PINCTRL_PIN(222, "PO EMIF 1 A21"),
+	PINCTRL_PIN(223, "P PAD VDD 21"),
+	PINCTRL_PIN(224, "P PAD GND 21"),
+	PINCTRL_PIN(225, "P PAD VSSIO 27"),
+	PINCTRL_PIN(226, "P PAD VDDIO 27"),
+	PINCTRL_PIN(227, "PO EMIF 1 A20"),
+	PINCTRL_PIN(228, "PO EMIF 1 A19"),
+	PINCTRL_PIN(229, "PO EMIF 1 A18"),
+	PINCTRL_PIN(230, "PO EMIF 1 A17"),
+	PINCTRL_PIN(231, "P PAD VDDIO 28"),
+	PINCTRL_PIN(232, "P PAD VSSIO 28"),
+	PINCTRL_PIN(233, "PO EMIF 1 A16"),
+	PINCTRL_PIN(234, "PIO EMIF 1 D15"),
+	PINCTRL_PIN(235, "PO EMIF 1 A15"),
+	PINCTRL_PIN(236, "PIO EMIF 1 D14"),
+	PINCTRL_PIN(237, "P PAD VDD 22"),
+	PINCTRL_PIN(238, "P PAD GND 22"),
+	PINCTRL_PIN(239, "P PAD VSSIO 29"),
+	PINCTRL_PIN(240, "P PAD VDDIO 29"),
+	PINCTRL_PIN(241, "PO EMIF 1 A14"),
+	PINCTRL_PIN(242, "PIO EMIF 1 D13"),
+	PINCTRL_PIN(243, "PO EMIF 1 A13"),
+	PINCTRL_PIN(244, "PIO EMIF 1 D12"),
+	PINCTRL_PIN(245, "P PAD VSSIO 30"),
+	PINCTRL_PIN(246, "P PAD VDDIO 30"),
+	PINCTRL_PIN(247, "PO EMIF 1 A12"),
+	PINCTRL_PIN(248, "PIO EMIF 1 D11"),
+	PINCTRL_PIN(249, "PO EMIF 1 A11"),
+	PINCTRL_PIN(250, "PIO EMIF 1 D10"),
+	PINCTRL_PIN(251, "P PAD VSSIO 31"),
+	PINCTRL_PIN(252, "P PAD VDDIO 31"),
+	PINCTRL_PIN(253, "PO EMIF 1 A10"),
+	PINCTRL_PIN(254, "PIO EMIF 1 D09"),
+	PINCTRL_PIN(255, "PO EMIF 1 A09"),
+	PINCTRL_PIN(256, "P PAD VDDIO 32"),
+	PINCTRL_PIN(257, "P PAD VSSIO 32"),
+	PINCTRL_PIN(258, "P PAD GND 24"),
+	PINCTRL_PIN(259, "P PAD VDD 24"),
+	PINCTRL_PIN(260, "PIO EMIF 1 D08"),
+	PINCTRL_PIN(261, "PO EMIF 1 A08"),
+	PINCTRL_PIN(262, "PIO EMIF 1 D07"),
+	PINCTRL_PIN(263, "PO EMIF 1 A07"),
+	PINCTRL_PIN(264, "P PAD VDDIO 33"),
+	PINCTRL_PIN(265, "P PAD VSSIO 33"),
+	PINCTRL_PIN(266, "PIO EMIF 1 D06"),
+	PINCTRL_PIN(267, "PO EMIF 1 A06"),
+	PINCTRL_PIN(268, "PIO EMIF 1 D05"),
+	PINCTRL_PIN(269, "PO EMIF 1 A05"),
+	PINCTRL_PIN(270, "P PAD VDDIO 34"),
+	PINCTRL_PIN(271, "P PAD VSSIO 34"),
+	PINCTRL_PIN(272, "PIO EMIF 1 D04"),
+	PINCTRL_PIN(273, "PO EMIF 1 A04"),
+	PINCTRL_PIN(274, "PIO EMIF 1 D03"),
+	PINCTRL_PIN(275, "PO EMIF 1 A03"),
+	PINCTRL_PIN(276, "P PAD VDDIO 35"),
+	PINCTRL_PIN(277, "P PAD VSSIO 35"),
+	PINCTRL_PIN(278, "P PAD GND 23"),
+	PINCTRL_PIN(279, "P PAD VDD 23"),
+	PINCTRL_PIN(280, "PIO EMIF 1 D02"),
+	PINCTRL_PIN(281, "PO EMIF 1 A02"),
+	PINCTRL_PIN(282, "PIO EMIF 1 D01"),
+	PINCTRL_PIN(283, "PO EMIF 1 A01"),
+	PINCTRL_PIN(284, "P PAD VDDIO 36"),
+	PINCTRL_PIN(285, "P PAD VSSIO 36"),
+	PINCTRL_PIN(286, "PIO EMIF 1 D00"),
+	PINCTRL_PIN(287, "PO EMIF 1 BE1 N"),
+	PINCTRL_PIN(288, "PO EMIF 1 BE0 N"),
+	PINCTRL_PIN(289, "PO EMIF 1 ADV N"),
+	PINCTRL_PIN(290, "P PAD VDDIO 37"),
+	PINCTRL_PIN(291, "P PAD VSSIO 37"),
+	PINCTRL_PIN(292, "PO EMIF 1 SD CKE0"),
+	PINCTRL_PIN(293, "PO EMIF 1 OE N"),
+	PINCTRL_PIN(294, "PO EMIF 1 WE N"),
+	PINCTRL_PIN(295, "P PAD VDDIO 38"),
+	PINCTRL_PIN(296, "P PAD VSSIO 38"),
+	PINCTRL_PIN(297, "PO EMIF 1 CLK"),
+	PINCTRL_PIN(298, "PIO EMIF 1 SD CLK"),
+	PINCTRL_PIN(299, "P PAD VSSIO 45 (not bonded)"),
+	PINCTRL_PIN(300, "P PAD VDDIO 42"),
+	PINCTRL_PIN(301, "P PAD VSSIO 42"),
+	PINCTRL_PIN(302, "P PAD GND 31"),
+	PINCTRL_PIN(303, "P PAD VDD 31"),
+	PINCTRL_PIN(304, "PI EMIF 1 RET CLK"),
+	PINCTRL_PIN(305, "PI EMIF 1 WAIT N"),
+	PINCTRL_PIN(306, "PI EMIF 1 NFIF READY"),
+	PINCTRL_PIN(307, "PO EMIF 1 SD CKE1"),
+	PINCTRL_PIN(308, "PO EMIF 1 CS3 N"),
+	PINCTRL_PIN(309, "P PAD VDD 25"),
+	PINCTRL_PIN(310, "P PAD GND 25"),
+	PINCTRL_PIN(311, "P PAD VSSIO 39"),
+	PINCTRL_PIN(312, "P PAD VDDIO 39"),
+	PINCTRL_PIN(313, "PO EMIF 1 CS2 N"),
+	PINCTRL_PIN(314, "PO EMIF 1 CS1 N"),
+	PINCTRL_PIN(315, "PO EMIF 1 CS0 N"),
+	PINCTRL_PIN(316, "PO ETM TRACE PKT0"),
+	PINCTRL_PIN(317, "PO ETM TRACE PKT1"),
+	PINCTRL_PIN(318, "PO ETM TRACE PKT2"),
+	PINCTRL_PIN(319, "P PAD VDD 30"),
+	PINCTRL_PIN(320, "P PAD GND 30"),
+	PINCTRL_PIN(321, "P PAD VSSIO 44"),
+	PINCTRL_PIN(322, "P PAD VDDIO 44"),
+	PINCTRL_PIN(323, "PO ETM TRACE PKT3"),
+	PINCTRL_PIN(324, "PO ETM TRACE PKT4"),
+	PINCTRL_PIN(325, "PO ETM TRACE PKT5"),
+	PINCTRL_PIN(326, "PO ETM TRACE PKT6"),
+	PINCTRL_PIN(327, "PO ETM TRACE PKT7"),
+	PINCTRL_PIN(328, "PO ETM PIPE STAT0"),
+	PINCTRL_PIN(329, "P PAD VDD 26"),
+	PINCTRL_PIN(330, "P PAD GND 26"),
+	PINCTRL_PIN(331, "P PAD VSSIO 40"),
+	PINCTRL_PIN(332, "P PAD VDDIO 40"),
+	PINCTRL_PIN(333, "PO ETM PIPE STAT1"),
+	PINCTRL_PIN(334, "PO ETM PIPE STAT2"),
+	PINCTRL_PIN(335, "PO ETM TRACE CLK"),
+	PINCTRL_PIN(336, "PO ETM TRACE SYNC"),
+	PINCTRL_PIN(337, "PIO ACC GPIO 33"),
+	PINCTRL_PIN(338, "PIO ACC GPIO 32"),
+	PINCTRL_PIN(339, "PIO ACC GPIO 30"),
+	PINCTRL_PIN(340, "PIO ACC GPIO 29"),
+	PINCTRL_PIN(341, "P PAD VDDIO 17"),
+	PINCTRL_PIN(342, "P PAD VSSIO 17"),
+	PINCTRL_PIN(343, "P PAD GND 15"),
+	PINCTRL_PIN(344, "P PAD VDD 15"),
+	PINCTRL_PIN(345, "PIO ACC GPIO 28"),
+	PINCTRL_PIN(346, "PIO ACC GPIO 27"),
+	PINCTRL_PIN(347, "PIO ACC GPIO 16"),
+	PINCTRL_PIN(348, "PI TAP TMS"),
+	PINCTRL_PIN(349, "PI TAP TDI"),
+	PINCTRL_PIN(350, "PO TAP TDO"),
+	PINCTRL_PIN(351, "PI TAP RST N"),
+	/* Pads along the left edge of the chip */
+	PINCTRL_PIN(352, "PI EMU MODE 0"),
+	PINCTRL_PIN(353, "PO TAP RET CLK"),
+	PINCTRL_PIN(354, "PI TAP CLK"),
+	PINCTRL_PIN(355, "PO EMIF 0 SD CS N"),
+	PINCTRL_PIN(356, "PO EMIF 0 SD CAS N"),
+	PINCTRL_PIN(357, "PO EMIF 0 SD WE N"),
+	PINCTRL_PIN(358, "P PAD VDDIO 1"),
+	PINCTRL_PIN(359, "P PAD VSSIO 1"),
+	PINCTRL_PIN(360, "P PAD GND 1"),
+	PINCTRL_PIN(361, "P PAD VDD 1"),
+	PINCTRL_PIN(362, "PO EMIF 0 SD CKE"),
+	PINCTRL_PIN(363, "PO EMIF 0 SD DQML"),
+	PINCTRL_PIN(364, "PO EMIF 0 SD DQMU"),
+	PINCTRL_PIN(365, "PO EMIF 0 SD RAS N"),
+	PINCTRL_PIN(366, "PIO EMIF 0 D15"),
+	PINCTRL_PIN(367, "PO EMIF 0 A15"),
+	PINCTRL_PIN(368, "PIO EMIF 0 D14"),
+	PINCTRL_PIN(369, "PO EMIF 0 A14"),
+	PINCTRL_PIN(370, "PIO EMIF 0 D13"),
+	PINCTRL_PIN(371, "PO EMIF 0 A13"),
+	PINCTRL_PIN(372, "P PAD VDDIO 2"),
+	PINCTRL_PIN(373, "P PAD VSSIO 2"),
+	PINCTRL_PIN(374, "P PAD GND 2"),
+	PINCTRL_PIN(375, "P PAD VDD 2"),
+	PINCTRL_PIN(376, "PIO EMIF 0 D12"),
+	PINCTRL_PIN(377, "PO EMIF 0 A12"),
+	PINCTRL_PIN(378, "PIO EMIF 0 D11"),
+	PINCTRL_PIN(379, "PO EMIF 0 A11"),
+	PINCTRL_PIN(380, "PIO EMIF 0 D10"),
+	PINCTRL_PIN(381, "PO EMIF 0 A10"),
+	PINCTRL_PIN(382, "PIO EMIF 0 D09"),
+	PINCTRL_PIN(383, "PO EMIF 0 A09"),
+	PINCTRL_PIN(384, "PIO EMIF 0 D08"),
+	PINCTRL_PIN(385, "PO EMIF 0 A08"),
+	PINCTRL_PIN(386, "PIO EMIF 0 D07"),
+	PINCTRL_PIN(387, "PO EMIF 0 A07"),
+	PINCTRL_PIN(388, "P PAD VDDIO 3"),
+	PINCTRL_PIN(389, "P PAD VSSIO 3"),
+	PINCTRL_PIN(390, "P PAD GND 3"),
+	PINCTRL_PIN(391, "P PAD VDD 3"),
+	PINCTRL_PIN(392, "PO EFUSE RDOUT1"),
+	PINCTRL_PIN(393, "PIO EMIF 0 D06"),
+	PINCTRL_PIN(394, "PO EMIF 0 A06"),
+	PINCTRL_PIN(395, "PIO EMIF 0 D05"),
+	PINCTRL_PIN(396, "PO EMIF 0 A05"),
+	PINCTRL_PIN(397, "PIO EMIF 0 D04"),
+	PINCTRL_PIN(398, "PO EMIF 0 A04"),
+	PINCTRL_PIN(399, "A PADS/A VDDCO1v82v5 GND 80U SF LIN VDDCO AF"),
+	PINCTRL_PIN(400, "PWR VDDCO AF"),
+	PINCTRL_PIN(401, "PWR EFUSE HV1"),
+	PINCTRL_PIN(402, "P PAD VSSIO 4"),
+	PINCTRL_PIN(403, "P PAD VDDIO 4"),
+	PINCTRL_PIN(404, "P PAD GND 4"),
+	PINCTRL_PIN(405, "P PAD VDD 4"),
+	PINCTRL_PIN(406, "PIO EMIF 0 D03"),
+	PINCTRL_PIN(407, "PO EMIF 0 A03"),
+	PINCTRL_PIN(408, "PWR EFUSE HV2"),
+	PINCTRL_PIN(409, "PWR EFUSE HV3"),
+	PINCTRL_PIN(410, "PIO EMIF 0 D02"),
+	PINCTRL_PIN(411, "PO EMIF 0 A02"),
+	PINCTRL_PIN(412, "PIO EMIF 0 D01"),
+	PINCTRL_PIN(413, "P PAD VDDIO 5"),
+	PINCTRL_PIN(414, "P PAD VSSIO 5"),
+	PINCTRL_PIN(415, "P PAD GND 5"),
+	PINCTRL_PIN(416, "P PAD VDD 5"),
+	PINCTRL_PIN(417, "PO EMIF 0 A01"),
+	PINCTRL_PIN(418, "PIO EMIF 0 D00"),
+	PINCTRL_PIN(419, "IF 0 SD CLK"),
+	PINCTRL_PIN(420, "APP SPI CLK"),
+	PINCTRL_PIN(421, "APP SPI DO"),
+	PINCTRL_PIN(422, "APP SPI DI"),
+	PINCTRL_PIN(423, "APP SPI CS0"),
+	PINCTRL_PIN(424, "APP SPI CS1"),
+	PINCTRL_PIN(425, "APP SPI CS2"),
+	PINCTRL_PIN(426, "PIO APP GPIO 10"),
+	PINCTRL_PIN(427, "P PAD VDDIO 41"),
+	PINCTRL_PIN(428, "P PAD VSSIO 41"),
+	PINCTRL_PIN(429, "P PAD GND 6"),
+	PINCTRL_PIN(430, "P PAD VDD 6"),
+	PINCTRL_PIN(431, "PIO ACC SDIO0 CMD"),
+	PINCTRL_PIN(432, "PIO ACC SDIO0 CK"),
+	PINCTRL_PIN(433, "PIO ACC SDIO0 D3"),
+	PINCTRL_PIN(434, "PIO ACC SDIO0 D2"),
+	PINCTRL_PIN(435, "PIO ACC SDIO0 D1"),
+	PINCTRL_PIN(436, "PIO ACC SDIO0 D0"),
+	PINCTRL_PIN(437, "PIO USB PU"),
+	PINCTRL_PIN(438, "PIO USB SP"),
+	PINCTRL_PIN(439, "PIO USB DAT VP"),
+	PINCTRL_PIN(440, "PIO USB SE0 VM"),
+	PINCTRL_PIN(441, "PIO USB OE"),
+	PINCTRL_PIN(442, "PIO USB SUSP"),
+	PINCTRL_PIN(443, "P PAD VSSIO 6"),
+	PINCTRL_PIN(444, "P PAD VDDIO 6"),
+	PINCTRL_PIN(445, "PIO USB PUEN"),
+	PINCTRL_PIN(446, "PIO ACC UART0 RX"),
+	PINCTRL_PIN(447, "PIO ACC UART0 TX"),
+	PINCTRL_PIN(448, "PIO ACC UART0 CTS"),
+	PINCTRL_PIN(449, "PIO ACC UART0 RTS"),
+	PINCTRL_PIN(450, "PIO ACC UART3 RX"),
+	PINCTRL_PIN(451, "PIO ACC UART3 TX"),
+	PINCTRL_PIN(452, "PIO ACC UART3 CTS"),
+	PINCTRL_PIN(453, "PIO ACC UART3 RTS"),
+	PINCTRL_PIN(454, "PIO ACC IRDA TX"),
+	PINCTRL_PIN(455, "P PAD VDDIO 7"),
+	PINCTRL_PIN(456, "P PAD VSSIO 7"),
+	PINCTRL_PIN(457, "P PAD GND 7"),
+	PINCTRL_PIN(458, "P PAD VDD 7"),
+	PINCTRL_PIN(459, "PIO ACC IRDA RX"),
+	PINCTRL_PIN(460, "PIO ACC PCM I2S CLK"),
+	PINCTRL_PIN(461, "PIO ACC PCM I2S WS"),
+	PINCTRL_PIN(462, "PIO ACC PCM I2S DATA A"),
+	PINCTRL_PIN(463, "PIO ACC PCM I2S DATA B"),
+	PINCTRL_PIN(464, "PO SIM CLK"),
+	PINCTRL_PIN(465, "PIO ACC IRDA SD"),
+	PINCTRL_PIN(466, "PIO SIM DATA"),
+};
+
+/**
+ * @dev: a pointer back to containing device
+ * @virtbase: the offset to the controller in virtual memory
+ */
+struct u300_pmx {
+	struct device *dev;
+	struct pinctrl_dev *pctl;
+	u32 phybase;
+	u32 physize;
+	void __iomem *virtbase;
+};
+
+/**
+ * u300_pmx_registers - the array of registers read/written for each pinmux
+ * shunt setting
+ */
+const u32 u300_pmx_registers[] = {
+	U300_SYSCON_PMC1LR,
+	U300_SYSCON_PMC1HR,
+	U300_SYSCON_PMC2R,
+	U300_SYSCON_PMC3R,
+	U300_SYSCON_PMC4R,
+};
+
+/**
+ * struct u300_pin_group - describes a U300 pin group
+ * @name: the name of this specific pin group
+ * @pins: an array of discrete physical pins used in this group, taken
+ *	from the driver-local pin enumeration space
+ * @num_pins: the number of pins in this group array, i.e. the number of
+ *	elements in .pins so we can iterate over that array
+ */
+struct u300_pin_group {
+	const char *name;
+	const unsigned int *pins;
+	const unsigned num_pins;
+};
+
+/**
+ * struct pmx_onmask - mask bits to enable/disable padmux
+ * @mask: mask bits to disable
+ * @val: mask bits to enable
+ *
+ * onmask lazy dog:
+ * onmask = {
+ *   {"PMC1LR" mask, "PMC1LR" value},
+ *   {"PMC1HR" mask, "PMC1HR" value},
+ *   {"PMC2R"  mask, "PMC2R"  value},
+ *   {"PMC3R"  mask, "PMC3R"  value},
+ *   {"PMC4R"  mask, "PMC4R"  value}
+ * }
+ */
+struct u300_pmx_mask {
+	u16 mask;
+	u16 bits;
+};
+
+/* The chip power pins are VDD, GND, VDDIO and VSSIO */
+static const unsigned power_pins[] = { 0, 1, 3, 31, 46, 47, 49, 50, 61, 62, 63,
+	64, 78, 79, 80, 81, 92, 93, 94, 95, 101, 102, 103, 104, 115, 116, 117,
+	118, 130, 131, 132, 133, 145, 146, 147, 148, 159, 160, 172, 173, 174,
+	175, 187, 188, 189, 190, 201, 202, 211, 212, 213, 214, 215, 218, 223,
+	224, 225, 226, 231, 232, 237, 238, 239, 240, 245, 246, 251, 252, 256,
+	257, 258, 259, 264, 265, 270, 271, 276, 277, 278, 279, 284, 285, 290,
+	291, 295, 296, 299, 300, 301, 302, 303, 309, 310, 311, 312, 319, 320,
+	321, 322, 329, 330, 331, 332, 341, 342, 343, 344, 358, 359, 360, 361,
+	372, 373, 374, 375, 388, 389, 390, 391, 402, 403, 404, 405, 413, 414,
+	415, 416, 427, 428, 429, 430, 443, 444, 455, 456, 457, 458 };
+static const unsigned emif0_pins[] = { 355, 356, 357, 362, 363, 364, 365, 366,
+	367, 368, 369, 370, 371, 376, 377, 378, 379, 380, 381, 382, 383, 384,
+	385, 386, 387, 393, 394, 395, 396, 397, 398, 406, 407, 410, 411, 412,
+	417, 418 };
+static const unsigned emif1_pins[] = { 216, 217, 219, 220, 221, 222, 227, 228,
+	229, 230, 233, 234, 235, 236, 241, 242, 243, 244, 247, 248, 249, 250,
+	253, 254, 255, 260, 261, 262, 263, 266, 267, 268, 269, 272, 273, 274,
+	275, 280, 281, 282, 283, 286, 287, 288, 289, 292, 293, 294, 297, 298,
+	304, 305, 306, 307, 308, 313, 314, 315 };
+static const unsigned uart0_pins[] = { 134, 135, 136, 137 };
+static const unsigned mmc0_pins[] = { 166, 167, 168, 169, 170, 171, 176, 177 };
+static const unsigned spi0_pins[] = { 420, 421, 422, 423, 424, 425 };
+
+static const struct u300_pmx_mask emif0_mask[] = {
+	{0, 0},
+	{0, 0},
+	{0, 0},
+	{0, 0},
+	{0, 0},
+};
+
+static const struct u300_pmx_mask emif1_mask[] = {
+	/*
+	 * This connects the SDRAM to CS2 and a NAND flash to
+	 * CS0 on the EMIF.
+	 */
+	{
+		U300_SYSCON_PMC1LR_EMIF_1_CS2_MASK |
+		U300_SYSCON_PMC1LR_EMIF_1_CS1_MASK |
+		U300_SYSCON_PMC1LR_EMIF_1_CS0_MASK |
+		U300_SYSCON_PMC1LR_EMIF_1_MASK,
+		U300_SYSCON_PMC1LR_EMIF_1_CS2_SDRAM |
+		U300_SYSCON_PMC1LR_EMIF_1_CS1_STATIC |
+		U300_SYSCON_PMC1LR_EMIF_1_CS0_NFIF |
+		U300_SYSCON_PMC1LR_EMIF_1_SDRAM0
+	},
+	{0, 0},
+	{0, 0},
+	{0, 0},
+	{0, 0},
+};
+
+static const struct u300_pmx_mask uart0_mask[] = {
+	{0, 0},
+	{
+		U300_SYSCON_PMC1HR_APP_UART0_1_MASK |
+		U300_SYSCON_PMC1HR_APP_UART0_2_MASK,
+		U300_SYSCON_PMC1HR_APP_UART0_1_UART0 |
+		U300_SYSCON_PMC1HR_APP_UART0_2_UART0
+	},
+	{0, 0},
+	{0, 0},
+	{0, 0},
+};
+
+static const struct u300_pmx_mask mmc0_mask[] = {
+	{ U300_SYSCON_PMC1LR_MMCSD_MASK, U300_SYSCON_PMC1LR_MMCSD_MMCSD},
+	{0, 0},
+	{0, 0},
+	{0, 0},
+	{ U300_SYSCON_PMC4R_APP_MISC_12_MASK,
+	  U300_SYSCON_PMC4R_APP_MISC_12_APP_GPIO }
+};
+
+static const struct u300_pmx_mask spi0_mask[] = {
+	{0, 0},
+	{
+		U300_SYSCON_PMC1HR_APP_SPI_2_MASK |
+		U300_SYSCON_PMC1HR_APP_SPI_CS_1_MASK |
+		U300_SYSCON_PMC1HR_APP_SPI_CS_2_MASK,
+		U300_SYSCON_PMC1HR_APP_SPI_2_SPI |
+		U300_SYSCON_PMC1HR_APP_SPI_CS_1_SPI |
+		U300_SYSCON_PMC1HR_APP_SPI_CS_2_SPI
+	},
+	{0, 0},
+	{0, 0},
+	{0, 0}
+};
+
+static const struct u300_pin_group u300_pin_groups[] = {
+	{
+		.name = "powergrp",
+		.pins = power_pins,
+		.num_pins = ARRAY_SIZE(power_pins),
+	},
+	{
+		.name = "emif0grp",
+		.pins = emif0_pins,
+		.num_pins = ARRAY_SIZE(emif0_pins),
+	},
+	{
+		.name = "emif1grp",
+		.pins = emif1_pins,
+		.num_pins = ARRAY_SIZE(emif1_pins),
+	},
+	{
+		.name = "uart0grp",
+		.pins = uart0_pins,
+		.num_pins = ARRAY_SIZE(uart0_pins),
+	},
+	{
+		.name = "mmc0grp",
+		.pins = mmc0_pins,
+		.num_pins = ARRAY_SIZE(mmc0_pins),
+	},
+	{
+		.name = "spi0grp",
+		.pins = spi0_pins,
+		.num_pins = ARRAY_SIZE(spi0_pins),
+	},
+};
+
+static int u300_list_groups(struct pinctrl_dev *pctldev, unsigned selector)
+{
+	if (selector >= ARRAY_SIZE(u300_pin_groups))
+		return -EINVAL;
+	return 0;
+}
+
+static const char *u300_get_group_name(struct pinctrl_dev *pctldev,
+				       unsigned selector)
+{
+	if (selector >= ARRAY_SIZE(u300_pin_groups))
+		return NULL;
+	return u300_pin_groups[selector].name;
+}
+
+static int u300_get_group_pins(struct pinctrl_dev *pctldev, unsigned selector,
+			       const unsigned **pins,
+			       unsigned *num_pins)
+{
+	if (selector >= ARRAY_SIZE(u300_pin_groups))
+		return -EINVAL;
+	*pins = u300_pin_groups[selector].pins;
+	*num_pins = u300_pin_groups[selector].num_pins;
+	return 0;
+}
+
+static void u300_pin_dbg_show(struct pinctrl_dev *pctldev, struct seq_file *s,
+		   unsigned offset)
+{
+	seq_printf(s, " " DRIVER_NAME);
+}
+
+static struct pinctrl_ops u300_pctrl_ops = {
+	.list_groups = u300_list_groups,
+	.get_group_name = u300_get_group_name,
+	.get_group_pins = u300_get_group_pins,
+	.pin_dbg_show = u300_pin_dbg_show,
+};
+
+/*
+ * Here we define the available functions and their corresponding pin groups
+ */
+
+/**
+ * struct u300_pmx_func - describes U300 pinmux functions
+ * @name: the name of this specific function
+ * @groups: corresponding pin groups
+ * @onmask: bits to set to enable this when doing pin muxing
+ */
+struct u300_pmx_func {
+	const char *name;
+	const char * const *groups;
+	const unsigned num_groups;
+	const struct u300_pmx_mask *mask;
+};
+
+static const char * const powergrps[] = { "powergrp" };
+static const char * const emif0grps[] = { "emif0grp" };
+static const char * const emif1grps[] = { "emif1grp" };
+static const char * const uart0grps[] = { "uart0grp" };
+static const char * const mmc0grps[] = { "mmc0grp" };
+static const char * const spi0grps[] = { "spi0grp" };
+
+static const struct u300_pmx_func u300_pmx_functions[] = {
+	{
+		.name = "power",
+		.groups = powergrps,
+		.num_groups = ARRAY_SIZE(powergrps),
+		/* Mask is N/A */
+	},
+	{
+		.name = "emif0",
+		.groups = emif0grps,
+		.num_groups = ARRAY_SIZE(emif0grps),
+		.mask = emif0_mask,
+	},
+	{
+		.name = "emif1",
+		.groups = emif1grps,
+		.num_groups = ARRAY_SIZE(emif1grps),
+		.mask = emif1_mask,
+	},
+	{
+		.name = "uart0",
+		.groups = uart0grps,
+		.num_groups = ARRAY_SIZE(uart0grps),
+		.mask = uart0_mask,
+	},
+	{
+		.name = "mmc0",
+		.groups = mmc0grps,
+		.num_groups = ARRAY_SIZE(mmc0grps),
+		.mask = mmc0_mask,
+	},
+	{
+		.name = "spi0",
+		.groups = spi0grps,
+		.num_groups = ARRAY_SIZE(spi0grps),
+		.mask = spi0_mask,
+	},
+};
+
+static void u300_pmx_endisable(struct u300_pmx *upmx, unsigned selector,
+			       bool enable)
+{
+	u16 regval, val, mask;
+	int i;
+
+	for (i = 0; i < ARRAY_SIZE(u300_pmx_registers); i++) {
+		if (enable)
+			val = u300_pmx_functions[selector].mask->bits;
+		else
+			val = 0;
+
+		mask = u300_pmx_functions[selector].mask->mask;
+		if (mask != 0) {
+			regval = readw(upmx->virtbase + u300_pmx_registers[i]);
+			regval &= ~mask;
+			regval |= val;
+			writew(regval, upmx->virtbase + u300_pmx_registers[i]);
+		}
+	}
+}
+
+static int u300_pmx_enable(struct pinctrl_dev *pctldev, unsigned selector,
+			   unsigned group)
+{
+	struct u300_pmx *upmx;
+
+	/* There is nothing to do with the power pins */
+	if (selector == 0)
+		return 0;
+
+	upmx = pinctrl_dev_get_drvdata(pctldev);
+	u300_pmx_endisable(upmx, selector, true);
+
+	return 0;
+}
+
+static void u300_pmx_disable(struct pinctrl_dev *pctldev, unsigned selector,
+			     unsigned group)
+{
+	struct u300_pmx *upmx;
+
+	/* There is nothing to do with the power pins */
+	if (selector == 0)
+		return;
+
+	upmx = pinctrl_dev_get_drvdata(pctldev);
+	u300_pmx_endisable(upmx, selector, false);
+}
+
+static int u300_pmx_list_funcs(struct pinctrl_dev *pctldev, unsigned selector)
+{
+	if (selector >= ARRAY_SIZE(u300_pmx_functions))
+		return -EINVAL;
+	return 0;
+}
+
+static const char *u300_pmx_get_func_name(struct pinctrl_dev *pctldev,
+					  unsigned selector)
+{
+	return u300_pmx_functions[selector].name;
+}
+
+static int u300_pmx_get_groups(struct pinctrl_dev *pctldev, unsigned selector,
+			       const char * const **groups,
+			       unsigned * const num_groups)
+{
+	*groups = u300_pmx_functions[selector].groups;
+	*num_groups = u300_pmx_functions[selector].num_groups;
+	return 0;
+}
+
+static struct pinmux_ops u300_pmx_ops = {
+	.list_functions = u300_pmx_list_funcs,
+	.get_function_name = u300_pmx_get_func_name,
+	.get_function_groups = u300_pmx_get_groups,
+	.enable = u300_pmx_enable,
+	.disable = u300_pmx_disable,
+};
+
+/*
+ * FIXME: this will be set to sane values as this driver engulfs
+ * drivers/gpio/gpio-u300.c and we really know this stuff.
+ */
+static struct pinctrl_gpio_range u300_gpio_range = {
+	.name = "COH901*",
+	.id = 0,
+	.base = 0,
+	.npins = 64,
+};
+
+static struct pinctrl_desc u300_pmx_desc = {
+	.name = DRIVER_NAME,
+	.pins = u300_pads,
+	.npins = ARRAY_SIZE(u300_pads),
+	.maxpin = U300_NUM_PADS-1,
+	.pctlops = &u300_pctrl_ops,
+	.pmxops = &u300_pmx_ops,
+	.owner = THIS_MODULE,
+};
+
+static int __init u300_pmx_probe(struct platform_device *pdev)
+{
+	int ret;
+	struct u300_pmx *upmx;
+	struct resource *res;
+
+	/* Create state holders etc for this driver */
+	upmx = devm_kzalloc(&pdev->dev, sizeof(*upmx), GFP_KERNEL);
+	if (!upmx)
+		return -ENOMEM;
+
+	upmx->dev = &pdev->dev;
+
+	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+	if (!res) {
+		ret = -ENOENT;
+		goto out_no_resource;
+	}
+	upmx->phybase = res->start;
+	upmx->physize = resource_size(res);
+
+	if (request_mem_region(upmx->phybase, upmx->physize,
+			       DRIVER_NAME) == NULL) {
+		ret = -ENOMEM;
+		goto out_no_memregion;
+	}
+
+	upmx->virtbase = ioremap(upmx->phybase, upmx->physize);
+	if (!upmx->virtbase) {
+		ret = -ENOMEM;
+		goto out_no_remap;
+	}
+
+	upmx->pctl = pinctrl_register(&u300_pmx_desc, &pdev->dev, upmx);
+	if (!upmx->pctl) {
+		dev_err(&pdev->dev, "could not register U300 pinmux driver\n");
+		ret = -EINVAL;
+		goto out_no_pmx;
+	}
+
+	/* We will handle a range of GPIO pins */
+	pinctrl_add_gpio_range(upmx->pctl, &u300_gpio_range);
+
+	platform_set_drvdata(pdev, upmx);
+
+	dev_info(&pdev->dev, "initialized U300 pinmux driver\n");
+
+	return 0;
+
+out_no_pmx:
+	iounmap(upmx->virtbase);
+out_no_remap:
+	platform_set_drvdata(pdev, NULL);
+out_no_memregion:
+	release_mem_region(upmx->phybase, upmx->physize);
+out_no_resource:
+	devm_kfree(&pdev->dev, upmx);
+	return ret;
+}
+
+static int __exit u300_pmx_remove(struct platform_device *pdev)
+{
+	struct u300_pmx *upmx = platform_get_drvdata(pdev);
+
+	pinctrl_remove_gpio_range(upmx->pctl, &u300_gpio_range);
+	pinctrl_unregister(upmx->pctl);
+	iounmap(upmx->virtbase);
+	release_mem_region(upmx->phybase, upmx->physize);
+	platform_set_drvdata(pdev, NULL);
+	devm_kfree(&pdev->dev, upmx);
+
+	return 0;
+}
+
+static struct platform_driver u300_pmx_driver = {
+	.driver = {
+		.name = DRIVER_NAME,
+		.owner = THIS_MODULE,
+	},
+	.remove = __exit_p(u300_pmx_remove),
+};
+
+static int __init u300_pmx_init(void)
+{
+	return platform_driver_probe(&u300_pmx_driver, u300_pmx_probe);
+}
+arch_initcall(u300_pmx_init);
+
+static void __exit u300_pmx_exit(void)
+{
+	platform_driver_unregister(&u300_pmx_driver);
+}
+module_exit(u300_pmx_exit);
+
+MODULE_AUTHOR("Linus Walleij <linus.walleij@linaro.org>");
+MODULE_DESCRIPTION("U300 pin control driver");
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/pinctrl/pinmux.c b/drivers/pinctrl/pinmux.c
new file mode 100644
index 000000000000..a5467f8709e9
--- /dev/null
+++ b/drivers/pinctrl/pinmux.c
@@ -0,0 +1,1190 @@
+/*
+ * Core driver for the pin muxing portions of the pin control subsystem
+ *
+ * Copyright (C) 2011 ST-Ericsson SA
+ * Written on behalf of Linaro for ST-Ericsson
+ * Based on bits of regulator core, gpio core and clk core
+ *
+ * Author: Linus Walleij <linus.walleij@linaro.org>
+ *
+ * License terms: GNU General Public License (GPL) version 2
+ */
+#define pr_fmt(fmt) "pinmux core: " fmt
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/device.h>
+#include <linux/slab.h>
+#include <linux/radix-tree.h>
+#include <linux/err.h>
+#include <linux/list.h>
+#include <linux/mutex.h>
+#include <linux/spinlock.h>
+#include <linux/sysfs.h>
+#include <linux/debugfs.h>
+#include <linux/seq_file.h>
+#include <linux/pinctrl/machine.h>
+#include <linux/pinctrl/pinmux.h>
+#include "core.h"
+
+/* List of pinmuxes */
+static DEFINE_MUTEX(pinmux_list_mutex);
+static LIST_HEAD(pinmux_list);
+
+/* List of pinmux hogs */
+static DEFINE_MUTEX(pinmux_hoglist_mutex);
+static LIST_HEAD(pinmux_hoglist);
+
+/* Global pinmux maps, we allow one set only */
+static struct pinmux_map const *pinmux_maps;
+static unsigned pinmux_maps_num;
+
+/**
+ * struct pinmux_group - group list item for pinmux groups
+ * @node: pinmux group list node
+ * @group_selector: the group selector for this group
+ */
+struct pinmux_group {
+	struct list_head node;
+	unsigned group_selector;
+};
+
+/**
+ * struct pinmux - per-device pinmux state holder
+ * @node: global list node
+ * @dev: the device using this pinmux
+ * @usecount: the number of active users of this mux setting, used to keep
+ *	track of nested use cases
+ * @pins: an array of discrete physical pins used in this mapping, taken
+ *	from the global pin enumeration space (copied from pinmux map)
+ * @num_pins: the number of pins in this mapping array, i.e. the number of
+ *	elements in .pins so we can iterate over that array (copied from
+ *	pinmux map)
+ * @pctldev: pin control device handling this pinmux
+ * @func_selector: the function selector for the pinmux device handling
+ *	this pinmux
+ * @groups: the group selectors for the pinmux device and
+ *	selector combination handling this pinmux, this is a list that
+ *	will be traversed on all pinmux operations such as
+ *	get/put/enable/disable
+ * @mutex: a lock for the pinmux state holder
+ */
+struct pinmux {
+	struct list_head node;
+	struct device *dev;
+	unsigned usecount;
+	struct pinctrl_dev *pctldev;
+	unsigned func_selector;
+	struct list_head groups;
+	struct mutex mutex;
+};
+
+/**
+ * struct pinmux_hog - a list item to stash mux hogs
+ * @node: pinmux hog list node
+ * @map: map entry responsible for this hogging
+ * @pmx: the pinmux hogged by this item
+ */
+struct pinmux_hog {
+	struct list_head node;
+	struct pinmux_map const *map;
+	struct pinmux *pmx;
+};
+
+/**
+ * pin_request() - request a single pin to be muxed in, typically for GPIO
+ * @pin: the pin number in the global pin space
+ * @function: a functional name to give to this pin, passed to the driver
+ *	so it knows what function to mux in, e.g. the string "gpioNN"
+ *	means that you want to mux in the pin for use as GPIO number NN
+ * @gpio: if this request concerns a single GPIO pin
+ * @gpio_range: the range matching the GPIO pin if this is a request for a
+ *	single GPIO pin
+ */
+static int pin_request(struct pinctrl_dev *pctldev,
+		       int pin, const char *function, bool gpio,
+		       struct pinctrl_gpio_range *gpio_range)
+{
+	struct pin_desc *desc;
+	const struct pinmux_ops *ops = pctldev->desc->pmxops;
+	int status = -EINVAL;
+
+	dev_dbg(&pctldev->dev, "request pin %d for %s\n", pin, function);
+
+	if (!pin_is_valid(pctldev, pin)) {
+		dev_err(&pctldev->dev, "pin is invalid\n");
+		return -EINVAL;
+	}
+
+	if (!function) {
+		dev_err(&pctldev->dev, "no function name given\n");
+		return -EINVAL;
+	}
+
+	desc = pin_desc_get(pctldev, pin);
+	if (desc == NULL) {
+		dev_err(&pctldev->dev,
+			"pin is not registered so it cannot be requested\n");
+		goto out;
+	}
+
+	spin_lock(&desc->lock);
+	if (desc->mux_function) {
+		spin_unlock(&desc->lock);
+		dev_err(&pctldev->dev,
+			"pin already requested\n");
+		goto out;
+	}
+	desc->mux_function = function;
+	spin_unlock(&desc->lock);
+
+	/* Let each pin increase references to this module */
+	if (!try_module_get(pctldev->owner)) {
+		dev_err(&pctldev->dev,
+			"could not increase module refcount for pin %d\n",
+			pin);
+		status = -EINVAL;
+		goto out_free_pin;
+	}
+
+	/*
+	 * If there is no kind of request function for the pin we just assume
+	 * we got it by default and proceed.
+	 */
+	if (gpio && ops->gpio_request_enable)
+		/* This requests and enables a single GPIO pin */
+		status = ops->gpio_request_enable(pctldev, gpio_range, pin);
+	else if (ops->request)
+		status = ops->request(pctldev, pin);
+	else
+		status = 0;
+
+	if (status)
+		dev_err(&pctldev->dev, "->request on device %s failed "
+		       "for pin %d\n",
+		       pctldev->desc->name, pin);
+out_free_pin:
+	if (status) {
+		spin_lock(&desc->lock);
+		desc->mux_function = NULL;
+		spin_unlock(&desc->lock);
+	}
+out:
+	if (status)
+		dev_err(&pctldev->dev, "pin-%d (%s) status %d\n",
+		       pin, function ? : "?", status);
+
+	return status;
+}
+
+/**
+ * pin_free() - release a single muxed in pin so something else can be muxed
+ * @pctldev: pin controller device handling this pin
+ * @pin: the pin to free
+ * @free_func: whether to free the pin's assigned function name string
+ */
+static void pin_free(struct pinctrl_dev *pctldev, int pin, int free_func)
+{
+	const struct pinmux_ops *ops = pctldev->desc->pmxops;
+	struct pin_desc *desc;
+
+	desc = pin_desc_get(pctldev, pin);
+	if (desc == NULL) {
+		dev_err(&pctldev->dev,
+			"pin is not registered so it cannot be freed\n");
+		return;
+	}
+
+	if (ops->free)
+		ops->free(pctldev, pin);
+
+	spin_lock(&desc->lock);
+	if (free_func)
+		kfree(desc->mux_function);
+	desc->mux_function = NULL;
+	spin_unlock(&desc->lock);
+	module_put(pctldev->owner);
+}
+
+/**
+ * pinmux_request_gpio() - request a single pin to be muxed in as GPIO
+ * @gpio: the GPIO pin number from the GPIO subsystem number space
+ */
+int pinmux_request_gpio(unsigned gpio)
+{
+	char gpiostr[16];
+	const char *function;
+	struct pinctrl_dev *pctldev;
+	struct pinctrl_gpio_range *range;
+	int ret;
+	int pin;
+
+	ret = pinctrl_get_device_gpio_range(gpio, &pctldev, &range);
+	if (ret)
+		return -EINVAL;
+
+	/* Convert to the pin controllers number space */
+	pin = gpio - range->base;
+
+	/* Conjure some name stating what chip and pin this is taken by */
+	snprintf(gpiostr, 15, "%s:%d", range->name, gpio);
+
+	function = kstrdup(gpiostr, GFP_KERNEL);
+	if (!function)
+		return -EINVAL;
+
+	ret = pin_request(pctldev, pin, function, true, range);
+	if (ret < 0)
+		kfree(function);
+
+	return ret;
+}
+EXPORT_SYMBOL_GPL(pinmux_request_gpio);
+
+/**
+ * pinmux_free_gpio() - free a single pin, currently used as GPIO
+ * @gpio: the GPIO pin number from the GPIO subsystem number space
+ */
+void pinmux_free_gpio(unsigned gpio)
+{
+	struct pinctrl_dev *pctldev;
+	struct pinctrl_gpio_range *range;
+	int ret;
+	int pin;
+
+	ret = pinctrl_get_device_gpio_range(gpio, &pctldev, &range);
+	if (ret)
+		return;
+
+	/* Convert to the pin controllers number space */
+	pin = gpio - range->base;
+
+	pin_free(pctldev, pin, true);
+}
+EXPORT_SYMBOL_GPL(pinmux_free_gpio);
+
+/**
+ * pinmux_register_mappings() - register a set of pinmux mappings
+ * @maps: the pinmux mappings table to register
+ * @num_maps: the number of maps in the mapping table
+ *
+ * Only call this once during initialization of your machine, the function is
+ * tagged as __init and won't be callable after init has completed. The map
+ * passed into this function will be owned by the pinmux core and cannot be
+ * free:d.
+ */
+int __init pinmux_register_mappings(struct pinmux_map const *maps,
+				    unsigned num_maps)
+{
+	int i;
+
+	if (pinmux_maps != NULL) {
+		pr_err("pinmux mappings already registered, you can only "
+		       "register one set of maps\n");
+		return -EINVAL;
+	}
+
+	pr_debug("add %d pinmux maps\n", num_maps);
+	for (i = 0; i < num_maps; i++) {
+		/* Sanity check the mapping */
+		if (!maps[i].name) {
+			pr_err("failed to register map %d: "
+			       "no map name given\n", i);
+			return -EINVAL;
+		}
+		if (!maps[i].ctrl_dev && !maps[i].ctrl_dev_name) {
+			pr_err("failed to register map %s (%d): "
+			       "no pin control device given\n",
+			       maps[i].name, i);
+			return -EINVAL;
+		}
+		if (!maps[i].function) {
+			pr_err("failed to register map %s (%d): "
+			       "no function ID given\n", maps[i].name, i);
+			return -EINVAL;
+		}
+
+		if (!maps[i].dev && !maps[i].dev_name)
+			pr_debug("add system map %s function %s with no device\n",
+				 maps[i].name,
+				 maps[i].function);
+		else
+			pr_debug("register map %s, function %s\n",
+				 maps[i].name,
+				 maps[i].function);
+	}
+
+	pinmux_maps = maps;
+	pinmux_maps_num = num_maps;
+
+	return 0;
+}
+
+/**
+ * acquire_pins() - acquire all the pins for a certain funcion on a pinmux
+ * @pctldev: the device to take the pins on
+ * @func_selector: the function selector to acquire the pins for
+ * @group_selector: the group selector containing the pins to acquire
+ */
+static int acquire_pins(struct pinctrl_dev *pctldev,
+			unsigned func_selector,
+			unsigned group_selector)
+{
+	const struct pinctrl_ops *pctlops = pctldev->desc->pctlops;
+	const struct pinmux_ops *pmxops = pctldev->desc->pmxops;
+	const char *func = pmxops->get_function_name(pctldev,
+						     func_selector);
+	const unsigned *pins;
+	unsigned num_pins;
+	int ret;
+	int i;
+
+	ret = pctlops->get_group_pins(pctldev, group_selector,
+				      &pins, &num_pins);
+	if (ret)
+		return ret;
+
+	dev_dbg(&pctldev->dev, "requesting the %u pins from group %u\n",
+		num_pins, group_selector);
+
+	/* Try to allocate all pins in this group, one by one */
+	for (i = 0; i < num_pins; i++) {
+		ret = pin_request(pctldev, pins[i], func, false, NULL);
+		if (ret) {
+			dev_err(&pctldev->dev,
+				"could not get pin %d for function %s "
+				"on device %s - conflicting mux mappings?\n",
+				pins[i], func ? : "(undefined)",
+				pinctrl_dev_get_name(pctldev));
+			/* On error release all taken pins */
+			i--; /* this pin just failed */
+			for (; i >= 0; i--)
+				pin_free(pctldev, pins[i], false);
+			return -ENODEV;
+		}
+	}
+	return 0;
+}
+
+/**
+ * release_pins() - release pins taken by earlier acquirement
+ * @pctldev: the device to free the pinx on
+ * @group_selector: the group selector containing the pins to free
+ */
+static void release_pins(struct pinctrl_dev *pctldev,
+			 unsigned group_selector)
+{
+	const struct pinctrl_ops *pctlops = pctldev->desc->pctlops;
+	const unsigned *pins;
+	unsigned num_pins;
+	int ret;
+	int i;
+
+	ret = pctlops->get_group_pins(pctldev, group_selector,
+				      &pins, &num_pins);
+	if (ret) {
+		dev_err(&pctldev->dev, "could not get pins to release for "
+			"group selector %d\n",
+			group_selector);
+		return;
+	}
+	for (i = 0; i < num_pins; i++)
+		pin_free(pctldev, pins[i], false);
+}
+
+/**
+ * pinmux_get_group_selector() - returns the group selector for a group
+ * @pctldev: the pin controller handling the group
+ * @pin_group: the pin group to look up
+ */
+static int pinmux_get_group_selector(struct pinctrl_dev *pctldev,
+				     const char *pin_group)
+{
+	const struct pinctrl_ops *pctlops = pctldev->desc->pctlops;
+	unsigned group_selector = 0;
+
+	while (pctlops->list_groups(pctldev, group_selector) >= 0) {
+		const char *gname = pctlops->get_group_name(pctldev,
+							    group_selector);
+		if (!strcmp(gname, pin_group)) {
+			dev_dbg(&pctldev->dev,
+				"found group selector %u for %s\n",
+				group_selector,
+				pin_group);
+			return group_selector;
+		}
+
+		group_selector++;
+	}
+
+	dev_err(&pctldev->dev, "does not have pin group %s\n",
+		pin_group);
+
+	return -EINVAL;
+}
+
+/**
+ * pinmux_check_pin_group() - check function and pin group combo
+ * @pctldev: device to check the pin group vs function for
+ * @func_selector: the function selector to check the pin group for, we have
+ *	already looked this up in the calling function
+ * @pin_group: the pin group to match to the function
+ *
+ * This function will check that the pinmux driver can supply the
+ * selected pin group for a certain function, returns the group selector if
+ * the group and function selector will work fine together, else returns
+ * negative
+ */
+static int pinmux_check_pin_group(struct pinctrl_dev *pctldev,
+				  unsigned func_selector,
+				  const char *pin_group)
+{
+	const struct pinmux_ops *pmxops = pctldev->desc->pmxops;
+	const struct pinctrl_ops *pctlops = pctldev->desc->pctlops;
+	int ret;
+
+	/*
+	 * If the driver does not support different pin groups for the
+	 * functions, we only support group 0, and assume this exists.
+	 */
+	if (!pctlops || !pctlops->list_groups)
+		return 0;
+
+	/*
+	 * Passing NULL (no specific group) will select the first and
+	 * hopefully only group of pins available for this function.
+	 */
+	if (!pin_group) {
+		char const * const *groups;
+		unsigned num_groups;
+
+		ret = pmxops->get_function_groups(pctldev, func_selector,
+						  &groups, &num_groups);
+		if (ret)
+			return ret;
+		if (num_groups < 1)
+			return -EINVAL;
+		ret = pinmux_get_group_selector(pctldev, groups[0]);
+		if (ret < 0) {
+			dev_err(&pctldev->dev,
+				"function %s wants group %s but the pin "
+				"controller does not seem to have that group\n",
+				pmxops->get_function_name(pctldev, func_selector),
+				groups[0]);
+			return ret;
+		}
+
+		if (num_groups > 1)
+			dev_dbg(&pctldev->dev,
+				"function %s support more than one group, "
+				"default-selecting first group %s (%d)\n",
+				pmxops->get_function_name(pctldev, func_selector),
+				groups[0],
+				ret);
+
+		return ret;
+	}
+
+	dev_dbg(&pctldev->dev,
+		"check if we have pin group %s on controller %s\n",
+		pin_group, pinctrl_dev_get_name(pctldev));
+
+	ret = pinmux_get_group_selector(pctldev, pin_group);
+	if (ret < 0) {
+		dev_dbg(&pctldev->dev,
+			"%s does not support pin group %s with function %s\n",
+			pinctrl_dev_get_name(pctldev),
+			pin_group,
+			pmxops->get_function_name(pctldev, func_selector));
+	}
+	return ret;
+}
+
+/**
+ * pinmux_search_function() - check pin control driver for a certain function
+ * @pctldev: device to check for function and position
+ * @map: function map containing the function and position to look for
+ * @func_selector: returns the applicable function selector if found
+ * @group_selector: returns the applicable group selector if found
+ *
+ * This will search the pinmux driver for an applicable
+ * function with a specific pin group, returns 0 if these can be mapped
+ * negative otherwise
+ */
+static int pinmux_search_function(struct pinctrl_dev *pctldev,
+				  struct pinmux_map const *map,
+				  unsigned *func_selector,
+				  unsigned *group_selector)
+{
+	const struct pinmux_ops *ops = pctldev->desc->pmxops;
+	unsigned selector = 0;
+
+	/* See if this pctldev has this function */
+	while (ops->list_functions(pctldev, selector) >= 0) {
+		const char *fname = ops->get_function_name(pctldev,
+							   selector);
+		int ret;
+
+		if (!strcmp(map->function, fname)) {
+			/* Found the function, check pin group */
+			ret = pinmux_check_pin_group(pctldev, selector,
+						     map->group);
+			if (ret < 0)
+				return ret;
+
+			/* This function and group selector can be used */
+			*func_selector = selector;
+			*group_selector = ret;
+			return 0;
+
+		}
+		selector++;
+	}
+
+	pr_err("%s does not support function %s\n",
+	       pinctrl_dev_get_name(pctldev), map->function);
+	return -EINVAL;
+}
+
+/**
+ * pinmux_enable_muxmap() - enable a map entry for a certain pinmux
+ */
+static int pinmux_enable_muxmap(struct pinctrl_dev *pctldev,
+				struct pinmux *pmx,
+				struct device *dev,
+				const char *devname,
+				struct pinmux_map const *map)
+{
+	unsigned func_selector;
+	unsigned group_selector;
+	struct pinmux_group *grp;
+	int ret;
+
+	/*
+	 * Note that we're not locking the pinmux mutex here, because
+	 * this is only called at pinmux initialization time when it
+	 * has not been added to any list and thus is not reachable
+	 * by anyone else.
+	 */
+
+	if (pmx->pctldev && pmx->pctldev != pctldev) {
+		dev_err(&pctldev->dev,
+			"different pin control devices given for device %s, "
+			"function %s\n",
+			devname,
+			map->function);
+		return -EINVAL;
+	}
+	pmx->dev = dev;
+	pmx->pctldev = pctldev;
+
+	/* Now go into the driver and try to match a function and group */
+	ret = pinmux_search_function(pctldev, map, &func_selector,
+				     &group_selector);
+	if (ret < 0)
+		return ret;
+
+	/*
+	 * If the function selector is already set, it needs to be identical,
+	 * we support several groups with one function but not several
+	 * functions with one or several groups in the same pinmux.
+	 */
+	if (pmx->func_selector != UINT_MAX &&
+	    pmx->func_selector != func_selector) {
+		dev_err(&pctldev->dev,
+			"dual function defines in the map for device %s\n",
+		       devname);
+		return -EINVAL;
+	}
+	pmx->func_selector = func_selector;
+
+	/* Now add this group selector, we may have many of them */
+	grp = kmalloc(sizeof(struct pinmux_group), GFP_KERNEL);
+	if (!grp)
+		return -ENOMEM;
+	grp->group_selector = group_selector;
+	ret = acquire_pins(pctldev, func_selector, group_selector);
+	if (ret) {
+		kfree(grp);
+		return ret;
+	}
+	list_add(&grp->node, &pmx->groups);
+
+	return 0;
+}
+
+static void pinmux_free_groups(struct pinmux *pmx)
+{
+	struct list_head *node, *tmp;
+
+	list_for_each_safe(node, tmp, &pmx->groups) {
+		struct pinmux_group *grp =
+			list_entry(node, struct pinmux_group, node);
+		/* Release all pins taken by this group */
+		release_pins(pmx->pctldev, grp->group_selector);
+		list_del(node);
+		kfree(grp);
+	}
+}
+
+/**
+ * pinmux_get() - retrieves the pinmux for a certain device
+ * @dev: the device to get the pinmux for
+ * @name: an optional specific mux mapping name or NULL, the name is only
+ *	needed if you want to have more than one mapping per device, or if you
+ *	need an anonymous pinmux (not tied to any specific device)
+ */
+struct pinmux *pinmux_get(struct device *dev, const char *name)
+{
+
+	struct pinmux_map const *map = NULL;
+	struct pinctrl_dev *pctldev = NULL;
+	const char *devname = NULL;
+	struct pinmux *pmx;
+	bool found_map;
+	unsigned num_maps = 0;
+	int ret = -ENODEV;
+	int i;
+
+	/* We must have dev or ID or both */
+	if (!dev && !name)
+		return ERR_PTR(-EINVAL);
+
+	if (dev)
+		devname = dev_name(dev);
+
+	pr_debug("get mux %s for device %s\n", name,
+		 devname ? devname : "(none)");
+
+	/*
+	 * create the state cookie holder struct pinmux for each
+	 * mapping, this is what consumers will get when requesting
+	 * a pinmux handle with pinmux_get()
+	 */
+	pmx = kzalloc(sizeof(struct pinmux), GFP_KERNEL);
+	if (pmx == NULL)
+		return ERR_PTR(-ENOMEM);
+	mutex_init(&pmx->mutex);
+	pmx->func_selector = UINT_MAX;
+	INIT_LIST_HEAD(&pmx->groups);
+
+	/* Iterate over the pinmux maps to locate the right ones */
+	for (i = 0; i < pinmux_maps_num; i++) {
+		map = &pinmux_maps[i];
+		found_map = false;
+
+		/*
+		 * First, try to find the pctldev given in the map
+		 */
+		pctldev = get_pinctrl_dev_from_dev(map->ctrl_dev,
+						   map->ctrl_dev_name);
+		if (!pctldev) {
+			const char *devname = NULL;
+
+			if (map->ctrl_dev)
+				devname = dev_name(map->ctrl_dev);
+			else if (map->ctrl_dev_name)
+				devname = map->ctrl_dev_name;
+
+			pr_warning("could not find a pinctrl device for pinmux "
+				   "function %s, fishy, they shall all have one\n",
+				   map->function);
+			pr_warning("given pinctrl device name: %s",
+				   devname ? devname : "UNDEFINED");
+
+			/* Continue to check the other mappings anyway... */
+			continue;
+		}
+
+		pr_debug("in map, found pctldev %s to handle function %s",
+			 dev_name(&pctldev->dev), map->function);
+
+
+		/*
+		 * If we're looking for a specific named map, this must match,
+		 * else we loop and look for the next.
+		 */
+		if (name != NULL) {
+			if (map->name == NULL)
+				continue;
+			if (strcmp(map->name, name))
+				continue;
+		}
+
+		/*
+		 * This is for the case where no device name is given, we
+		 * already know that the function name matches from above
+		 * code.
+		 */
+		if (!map->dev_name && (name != NULL))
+			found_map = true;
+
+		/* If the mapping has a device set up it must match */
+		if (map->dev_name &&
+		    (!devname || !strcmp(map->dev_name, devname)))
+			/* MATCH! */
+			found_map = true;
+
+		/* If this map is applicable, then apply it */
+		if (found_map) {
+			ret = pinmux_enable_muxmap(pctldev, pmx, dev,
+						   devname, map);
+			if (ret) {
+				pinmux_free_groups(pmx);
+				kfree(pmx);
+				return ERR_PTR(ret);
+			}
+			num_maps++;
+		}
+	}
+
+
+	/* We should have atleast one map, right */
+	if (!num_maps) {
+		pr_err("could not find any mux maps for device %s, ID %s\n",
+		       devname ? devname : "(anonymous)",
+		       name ? name : "(undefined)");
+		kfree(pmx);
+		return ERR_PTR(-EINVAL);
+	}
+
+	pr_debug("found %u mux maps for device %s, UD %s\n",
+		 num_maps,
+		 devname ? devname : "(anonymous)",
+		 name ? name : "(undefined)");
+
+	/* Add the pinmux to the global list */
+	mutex_lock(&pinmux_list_mutex);
+	list_add(&pmx->node, &pinmux_list);
+	mutex_unlock(&pinmux_list_mutex);
+
+	return pmx;
+}
+EXPORT_SYMBOL_GPL(pinmux_get);
+
+/**
+ * pinmux_put() - release a previously claimed pinmux
+ * @pmx: a pinmux previously claimed by pinmux_get()
+ */
+void pinmux_put(struct pinmux *pmx)
+{
+	if (pmx == NULL)
+		return;
+
+	mutex_lock(&pmx->mutex);
+	if (pmx->usecount)
+		pr_warn("releasing pinmux with active users!\n");
+	/* Free the groups and all acquired pins */
+	pinmux_free_groups(pmx);
+	mutex_unlock(&pmx->mutex);
+
+	/* Remove from list */
+	mutex_lock(&pinmux_list_mutex);
+	list_del(&pmx->node);
+	mutex_unlock(&pinmux_list_mutex);
+
+	kfree(pmx);
+}
+EXPORT_SYMBOL_GPL(pinmux_put);
+
+/**
+ * pinmux_enable() - enable a certain pinmux setting
+ * @pmx: the pinmux to enable, previously claimed by pinmux_get()
+ */
+int pinmux_enable(struct pinmux *pmx)
+{
+	int ret = 0;
+
+	if (pmx == NULL)
+		return -EINVAL;
+	mutex_lock(&pmx->mutex);
+	if (pmx->usecount++ == 0) {
+		struct pinctrl_dev *pctldev = pmx->pctldev;
+		const struct pinmux_ops *ops = pctldev->desc->pmxops;
+		struct pinmux_group *grp;
+
+		list_for_each_entry(grp, &pmx->groups, node) {
+			ret = ops->enable(pctldev, pmx->func_selector,
+					  grp->group_selector);
+			if (ret) {
+				/*
+				 * TODO: call disable() on all groups we called
+				 * enable() on to this point?
+				 */
+				pmx->usecount--;
+				break;
+			}
+		}
+	}
+	mutex_unlock(&pmx->mutex);
+	return ret;
+}
+EXPORT_SYMBOL_GPL(pinmux_enable);
+
+/**
+ * pinmux_disable() - disable a certain pinmux setting
+ * @pmx: the pinmux to disable, previously claimed by pinmux_get()
+ */
+void pinmux_disable(struct pinmux *pmx)
+{
+	if (pmx == NULL)
+		return;
+
+	mutex_lock(&pmx->mutex);
+	if (--pmx->usecount == 0) {
+		struct pinctrl_dev *pctldev = pmx->pctldev;
+		const struct pinmux_ops *ops = pctldev->desc->pmxops;
+		struct pinmux_group *grp;
+
+		list_for_each_entry(grp, &pmx->groups, node) {
+			ops->disable(pctldev, pmx->func_selector,
+				     grp->group_selector);
+		}
+	}
+	mutex_unlock(&pmx->mutex);
+}
+EXPORT_SYMBOL_GPL(pinmux_disable);
+
+int pinmux_check_ops(const struct pinmux_ops *ops)
+{
+	/* Check that we implement required operations */
+	if (!ops->list_functions ||
+	    !ops->get_function_name ||
+	    !ops->get_function_groups ||
+	    !ops->enable ||
+	    !ops->disable)
+		return -EINVAL;
+
+	return 0;
+}
+
+/* Hog a single map entry and add to the hoglist */
+static int pinmux_hog_map(struct pinctrl_dev *pctldev,
+			  struct pinmux_map const *map)
+{
+	struct pinmux_hog *hog;
+	struct pinmux *pmx;
+	int ret;
+
+	if (map->dev || map->dev_name) {
+		/*
+		 * TODO: the day we have device tree support, we can
+		 * traverse the device tree and hog to specific device nodes
+		 * without any problems, so then we can hog pinmuxes for
+		 * all devices that just want a static pin mux at this point.
+		 */
+		dev_err(&pctldev->dev, "map %s wants to hog a non-system "
+			"pinmux, this is not going to work\n", map->name);
+		return -EINVAL;
+	}
+
+	hog = kzalloc(sizeof(struct pinmux_hog), GFP_KERNEL);
+	if (!hog)
+		return -ENOMEM;
+
+	pmx = pinmux_get(NULL, map->name);
+	if (IS_ERR(pmx)) {
+		kfree(hog);
+		dev_err(&pctldev->dev,
+			"could not get the %s pinmux mapping for hogging\n",
+			map->name);
+		return PTR_ERR(pmx);
+	}
+
+	ret = pinmux_enable(pmx);
+	if (ret) {
+		pinmux_put(pmx);
+		kfree(hog);
+		dev_err(&pctldev->dev,
+			"could not enable the %s pinmux mapping for hogging\n",
+			map->name);
+		return ret;
+	}
+
+	hog->map = map;
+	hog->pmx = pmx;
+
+	dev_info(&pctldev->dev, "hogged map %s, function %s\n", map->name,
+		 map->function);
+	mutex_lock(&pctldev->pinmux_hogs_lock);
+	list_add(&hog->node, &pctldev->pinmux_hogs);
+	mutex_unlock(&pctldev->pinmux_hogs_lock);
+
+	return 0;
+}
+
+/**
+ * pinmux_hog_maps() - hog specific map entries on controller device
+ * @pctldev: the pin control device to hog entries on
+ *
+ * When the pin controllers are registered, there may be some specific pinmux
+ * map entries that need to be hogged, i.e. get+enabled until the system shuts
+ * down.
+ */
+int pinmux_hog_maps(struct pinctrl_dev *pctldev)
+{
+	struct device *dev = &pctldev->dev;
+	const char *devname = dev_name(dev);
+	int ret;
+	int i;
+
+	INIT_LIST_HEAD(&pctldev->pinmux_hogs);
+	mutex_init(&pctldev->pinmux_hogs_lock);
+
+	for (i = 0; i < pinmux_maps_num; i++) {
+		struct pinmux_map const *map = &pinmux_maps[i];
+
+		if (((map->ctrl_dev == dev) ||
+		     !strcmp(map->ctrl_dev_name, devname)) &&
+		    map->hog_on_boot) {
+			/* OK time to hog! */
+			ret = pinmux_hog_map(pctldev, map);
+			if (ret)
+				return ret;
+		}
+	}
+	return 0;
+}
+
+/**
+ * pinmux_hog_maps() - unhog specific map entries on controller device
+ * @pctldev: the pin control device to unhog entries on
+ */
+void pinmux_unhog_maps(struct pinctrl_dev *pctldev)
+{
+	struct list_head *node, *tmp;
+
+	mutex_lock(&pctldev->pinmux_hogs_lock);
+	list_for_each_safe(node, tmp, &pctldev->pinmux_hogs) {
+		struct pinmux_hog *hog =
+			list_entry(node, struct pinmux_hog, node);
+		pinmux_disable(hog->pmx);
+		pinmux_put(hog->pmx);
+		list_del(node);
+		kfree(hog);
+	}
+	mutex_unlock(&pctldev->pinmux_hogs_lock);
+}
+
+#ifdef CONFIG_DEBUG_FS
+
+/* Called from pincontrol core */
+static int pinmux_functions_show(struct seq_file *s, void *what)
+{
+	struct pinctrl_dev *pctldev = s->private;
+	const struct pinmux_ops *pmxops = pctldev->desc->pmxops;
+	unsigned func_selector = 0;
+
+	while (pmxops->list_functions(pctldev, func_selector) >= 0) {
+		const char *func = pmxops->get_function_name(pctldev,
+							  func_selector);
+		const char * const *groups;
+		unsigned num_groups;
+		int ret;
+		int i;
+
+		ret = pmxops->get_function_groups(pctldev, func_selector,
+						  &groups, &num_groups);
+		if (ret)
+			seq_printf(s, "function %s: COULD NOT GET GROUPS\n",
+				   func);
+
+		seq_printf(s, "function: %s, groups = [ ", func);
+		for (i = 0; i < num_groups; i++)
+			seq_printf(s, "%s ", groups[i]);
+		seq_puts(s, "]\n");
+
+		func_selector++;
+
+	}
+
+	return 0;
+}
+
+static int pinmux_pins_show(struct seq_file *s, void *what)
+{
+	struct pinctrl_dev *pctldev = s->private;
+	unsigned pin;
+
+	seq_puts(s, "Pinmux settings per pin\n");
+	seq_puts(s, "Format: pin (name): pinmuxfunction\n");
+
+	/* The highest pin number need to be included in the loop, thus <= */
+	for (pin = 0; pin <= pctldev->desc->maxpin; pin++) {
+
+		struct pin_desc *desc;
+
+		desc = pin_desc_get(pctldev, pin);
+		/* Pin space may be sparse */
+		if (desc == NULL)
+			continue;
+
+		seq_printf(s, "pin %d (%s): %s\n", pin,
+			   desc->name ? desc->name : "unnamed",
+			   desc->mux_function ? desc->mux_function
+					      : "UNCLAIMED");
+	}
+
+	return 0;
+}
+
+static int pinmux_hogs_show(struct seq_file *s, void *what)
+{
+	struct pinctrl_dev *pctldev = s->private;
+	struct pinmux_hog *hog;
+
+	seq_puts(s, "Pinmux map hogs held by device\n");
+
+	list_for_each_entry(hog, &pctldev->pinmux_hogs, node)
+		seq_printf(s, "%s\n", hog->map->name);
+
+	return 0;
+}
+
+static int pinmux_show(struct seq_file *s, void *what)
+{
+	struct pinmux *pmx;
+
+	seq_puts(s, "Requested pinmuxes and their maps:\n");
+	list_for_each_entry(pmx, &pinmux_list, node) {
+		struct pinctrl_dev *pctldev = pmx->pctldev;
+		const struct pinmux_ops *pmxops;
+		const struct pinctrl_ops *pctlops;
+		struct pinmux_group *grp;
+
+		if (!pctldev) {
+			seq_puts(s, "NO PIN CONTROLLER DEVICE\n");
+			continue;
+		}
+
+		pmxops = pctldev->desc->pmxops;
+		pctlops = pctldev->desc->pctlops;
+
+		seq_printf(s, "device: %s function: %s (%u),",
+			   pinctrl_dev_get_name(pmx->pctldev),
+			   pmxops->get_function_name(pctldev, pmx->func_selector),
+			   pmx->func_selector);
+
+		seq_printf(s, " groups: [");
+		list_for_each_entry(grp, &pmx->groups, node) {
+			seq_printf(s, " %s (%u)",
+				   pctlops->get_group_name(pctldev, grp->group_selector),
+				   grp->group_selector);
+		}
+		seq_printf(s, " ]");
+
+		seq_printf(s, " users: %u map-> %s\n",
+			   pmx->usecount,
+			   pmx->dev ? dev_name(pmx->dev) : "(system)");
+	}
+
+	return 0;
+}
+
+static int pinmux_maps_show(struct seq_file *s, void *what)
+{
+	int i;
+
+	seq_puts(s, "Pinmux maps:\n");
+
+	for (i = 0; i < pinmux_maps_num; i++) {
+		struct pinmux_map const *map = &pinmux_maps[i];
+
+		seq_printf(s, "%s:\n", map->name);
+		if (map->dev || map->dev_name)
+			seq_printf(s, "  device: %s\n",
+				   map->dev ? dev_name(map->dev) :
+				   map->dev_name);
+		else
+			seq_printf(s, "  SYSTEM MUX\n");
+		seq_printf(s, "  controlling device %s\n",
+			   map->ctrl_dev ? dev_name(map->ctrl_dev) :
+			   map->ctrl_dev_name);
+		seq_printf(s, "  function: %s\n", map->function);
+		seq_printf(s, "  group: %s\n", map->group ? map->group :
+			   "(default)");
+	}
+	return 0;
+}
+
+static int pinmux_functions_open(struct inode *inode, struct file *file)
+{
+	return single_open(file, pinmux_functions_show, inode->i_private);
+}
+
+static int pinmux_pins_open(struct inode *inode, struct file *file)
+{
+	return single_open(file, pinmux_pins_show, inode->i_private);
+}
+
+static int pinmux_hogs_open(struct inode *inode, struct file *file)
+{
+	return single_open(file, pinmux_hogs_show, inode->i_private);
+}
+
+static int pinmux_open(struct inode *inode, struct file *file)
+{
+	return single_open(file, pinmux_show, NULL);
+}
+
+static int pinmux_maps_open(struct inode *inode, struct file *file)
+{
+	return single_open(file, pinmux_maps_show, NULL);
+}
+
+static const struct file_operations pinmux_functions_ops = {
+	.open		= pinmux_functions_open,
+	.read		= seq_read,
+	.llseek		= seq_lseek,
+	.release	= single_release,
+};
+
+static const struct file_operations pinmux_pins_ops = {
+	.open		= pinmux_pins_open,
+	.read		= seq_read,
+	.llseek		= seq_lseek,
+	.release	= single_release,
+};
+
+static const struct file_operations pinmux_hogs_ops = {
+	.open		= pinmux_hogs_open,
+	.read		= seq_read,
+	.llseek		= seq_lseek,
+	.release	= single_release,
+};
+
+static const struct file_operations pinmux_ops = {
+	.open		= pinmux_open,
+	.read		= seq_read,
+	.llseek		= seq_lseek,
+	.release	= single_release,
+};
+
+static const struct file_operations pinmux_maps_ops = {
+	.open		= pinmux_maps_open,
+	.read		= seq_read,
+	.llseek		= seq_lseek,
+	.release	= single_release,
+};
+
+void pinmux_init_device_debugfs(struct dentry *devroot,
+			 struct pinctrl_dev *pctldev)
+{
+	debugfs_create_file("pinmux-functions", S_IFREG | S_IRUGO,
+			    devroot, pctldev, &pinmux_functions_ops);
+	debugfs_create_file("pinmux-pins", S_IFREG | S_IRUGO,
+			    devroot, pctldev, &pinmux_pins_ops);
+	debugfs_create_file("pinmux-hogs", S_IFREG | S_IRUGO,
+			    devroot, pctldev, &pinmux_hogs_ops);
+}
+
+void pinmux_init_debugfs(struct dentry *subsys_root)
+{
+	debugfs_create_file("pinmuxes", S_IFREG | S_IRUGO,
+			    subsys_root, NULL, &pinmux_ops);
+	debugfs_create_file("pinmux-maps", S_IFREG | S_IRUGO,
+			    subsys_root, NULL, &pinmux_maps_ops);
+}
+
+#endif /* CONFIG_DEBUG_FS */
diff --git a/drivers/pinctrl/pinmux.h b/drivers/pinctrl/pinmux.h
new file mode 100644
index 000000000000..844500b3331b
--- /dev/null
+++ b/drivers/pinctrl/pinmux.h
@@ -0,0 +1,47 @@
+/*
+ * Internal interface between the core pin control system and the
+ * pinmux portions
+ *
+ * Copyright (C) 2011 ST-Ericsson SA
+ * Written on behalf of Linaro for ST-Ericsson
+ * Based on bits of regulator core, gpio core and clk core
+ *
+ * Author: Linus Walleij <linus.walleij@linaro.org>
+ *
+ * License terms: GNU General Public License (GPL) version 2
+ */
+#ifdef CONFIG_PINMUX
+
+int pinmux_check_ops(const struct pinmux_ops *ops);
+void pinmux_init_device_debugfs(struct dentry *devroot,
+				struct pinctrl_dev *pctldev);
+void pinmux_init_debugfs(struct dentry *subsys_root);
+int pinmux_hog_maps(struct pinctrl_dev *pctldev);
+void pinmux_unhog_maps(struct pinctrl_dev *pctldev);
+
+#else
+
+static inline int pinmux_check_ops(const struct pinmux_ops *ops)
+{
+	return 0;
+}
+
+static inline void pinmux_init_device_debugfs(struct dentry *devroot,
+					      struct pinctrl_dev *pctldev)
+{
+}
+
+static inline void pinmux_init_debugfs(struct dentry *subsys_root)
+{
+}
+
+static inline int pinmux_hog_maps(struct pinctrl_dev *pctldev)
+{
+	return 0;
+}
+
+static inline void pinmux_unhog_maps(struct pinctrl_dev *pctldev)
+{
+}
+
+#endif
author	Linus Torvalds	2011-10-25 14:04:01 +0200
committer	Linus Torvalds	2011-10-25 14:04:01 +0200
commit	c9d6329c35869ebf2ff88a5831e8073d3365e8bd (patch)
tree	735df8ad43f404ca031dd2cf2040d74538958b47 /drivers
parent	4e7e2a2008f5d8c49791c412849d5b0232d39bb3 (diff)
parent	ad7761ab3adc03fbf2cca8e3c84344175d876c40 (diff)