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-rw-r--r--drivers/mfd/Kconfig18
-rw-r--r--drivers/mfd/Makefile1
-rw-r--r--drivers/mfd/atmel-smc.c2
-rw-r--r--drivers/mfd/da9052-core.c26
-rw-r--r--drivers/mfd/da9062-core.c6
-rw-r--r--drivers/mfd/dm355evm_msp.c2
-rw-r--r--drivers/mfd/rk808.c147
-rw-r--r--drivers/mfd/stm32-lptimer.c107
-rw-r--r--drivers/mfd/tps65010.c2
-rw-r--r--drivers/mfd/twl-core.c6
-rw-r--r--drivers/mfd/twl4030-audio.c2
-rw-r--r--drivers/mfd/twl4030-irq.c2
-rw-r--r--drivers/mfd/twl4030-power.c2
-rw-r--r--drivers/mfd/twl6030-irq.c2
14 files changed, 304 insertions, 21 deletions
diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig
index 94ad2c1c3d90..7a01e70ac0ab 100644
--- a/drivers/mfd/Kconfig
+++ b/drivers/mfd/Kconfig
@@ -951,13 +951,13 @@ config MFD_RC5T583
different functionality of the device.
config MFD_RK808
- tristate "Rockchip RK808/RK818 Power Management Chip"
+ tristate "Rockchip RK805/RK808/RK818 Power Management Chip"
depends on I2C && OF
select MFD_CORE
select REGMAP_I2C
select REGMAP_IRQ
help
- If you say yes here you get support for the RK808 and RK818
+ If you say yes here you get support for the RK805, RK808 and RK818
Power Management chips.
This driver provides common support for accessing the device
through I2C interface. The device supports multiple sub-devices
@@ -1723,6 +1723,20 @@ config MFD_STW481X
in various ST Microelectronics and ST-Ericsson embedded
Nomadik series.
+config MFD_STM32_LPTIMER
+ tristate "Support for STM32 Low-Power Timer"
+ depends on (ARCH_STM32 && OF) || COMPILE_TEST
+ select MFD_CORE
+ select REGMAP
+ select REGMAP_MMIO
+ help
+ Select this option to enable STM32 Low-Power Timer driver
+ used for PWM, IIO Trigger, IIO Encoder and Counter. Shared
+ resources are also dealt with here.
+
+ To compile this driver as a module, choose M here: the
+ module will be called stm32-lptimer.
+
config MFD_STM32_TIMERS
tristate "Support for STM32 Timers"
depends on (ARCH_STM32 && OF) || COMPILE_TEST
diff --git a/drivers/mfd/Makefile b/drivers/mfd/Makefile
index 080793b3fd0e..b80b1a314ca5 100644
--- a/drivers/mfd/Makefile
+++ b/drivers/mfd/Makefile
@@ -221,5 +221,6 @@ obj-$(CONFIG_MFD_MT6397) += mt6397-core.o
obj-$(CONFIG_MFD_ALTERA_A10SR) += altera-a10sr.o
obj-$(CONFIG_MFD_SUN4I_GPADC) += sun4i-gpadc.o
+obj-$(CONFIG_MFD_STM32_LPTIMER) += stm32-lptimer.o
obj-$(CONFIG_MFD_STM32_TIMERS) += stm32-timers.o
obj-$(CONFIG_MFD_MXS_LRADC) += mxs-lradc.o
diff --git a/drivers/mfd/atmel-smc.c b/drivers/mfd/atmel-smc.c
index 954cf0f66a31..20cc0ea470fa 100644
--- a/drivers/mfd/atmel-smc.c
+++ b/drivers/mfd/atmel-smc.c
@@ -206,7 +206,7 @@ EXPORT_SYMBOL_GPL(atmel_smc_cs_conf_set_pulse);
* parameter
*
* This function encodes the @ncycles value as described in the datasheet
- * (section "SMC Pulse Register"), and then stores the result in the
+ * (section "SMC Cycle Register"), and then stores the result in the
* @conf->setup field at @shift position.
*
* Returns -EINVAL if @shift is invalid, -ERANGE if @ncycles does not fit in
diff --git a/drivers/mfd/da9052-core.c b/drivers/mfd/da9052-core.c
index a88c2065d8ab..a23a3a1c7061 100644
--- a/drivers/mfd/da9052-core.c
+++ b/drivers/mfd/da9052-core.c
@@ -18,6 +18,7 @@
#include <linux/mfd/core.h>
#include <linux/slab.h>
#include <linux/module.h>
+#include <linux/property.h>
#include <linux/mfd/da9052/da9052.h>
#include <linux/mfd/da9052/pdata.h>
@@ -519,9 +520,6 @@ static const struct mfd_cell da9052_subdev_info[] = {
.name = "da9052-wled3",
},
{
- .name = "da9052-tsi",
- },
- {
.name = "da9052-bat",
},
{
@@ -529,6 +527,10 @@ static const struct mfd_cell da9052_subdev_info[] = {
},
};
+static const struct mfd_cell da9052_tsi_subdev_info[] = {
+ { .name = "da9052-tsi" },
+};
+
const struct regmap_config da9052_regmap_config = {
.reg_bits = 8,
.val_bits = 8,
@@ -619,9 +621,27 @@ int da9052_device_init(struct da9052 *da9052, u8 chip_id)
goto err;
}
+ /*
+ * Check if touchscreen pins are used are analogue input instead
+ * of having a touchscreen connected to them. The analogue input
+ * functionality will be provided by hwmon driver (if enabled).
+ */
+ if (!device_property_read_bool(da9052->dev, "dlg,tsi-as-adc")) {
+ ret = mfd_add_devices(da9052->dev, PLATFORM_DEVID_AUTO,
+ da9052_tsi_subdev_info,
+ ARRAY_SIZE(da9052_tsi_subdev_info),
+ NULL, 0, NULL);
+ if (ret) {
+ dev_err(da9052->dev, "failed to add TSI subdev: %d\n",
+ ret);
+ goto err;
+ }
+ }
+
return 0;
err:
+ mfd_remove_devices(da9052->dev);
da9052_irq_exit(da9052);
return ret;
diff --git a/drivers/mfd/da9062-core.c b/drivers/mfd/da9062-core.c
index fbe0f245ce8e..fe1811523e4a 100644
--- a/drivers/mfd/da9062-core.c
+++ b/drivers/mfd/da9062-core.c
@@ -645,6 +645,9 @@ static const struct regmap_range da9062_aa_readable_ranges[] = {
.range_min = DA9062AA_VLDO1_B,
.range_max = DA9062AA_VLDO4_B,
}, {
+ .range_min = DA9062AA_BBAT_CONT,
+ .range_max = DA9062AA_BBAT_CONT,
+ }, {
.range_min = DA9062AA_INTERFACE,
.range_max = DA9062AA_CONFIG_E,
}, {
@@ -721,6 +724,9 @@ static const struct regmap_range da9062_aa_writeable_ranges[] = {
.range_min = DA9062AA_VLDO1_B,
.range_max = DA9062AA_VLDO4_B,
}, {
+ .range_min = DA9062AA_BBAT_CONT,
+ .range_max = DA9062AA_BBAT_CONT,
+ }, {
.range_min = DA9062AA_GP_ID_0,
.range_max = DA9062AA_GP_ID_19,
},
diff --git a/drivers/mfd/dm355evm_msp.c b/drivers/mfd/dm355evm_msp.c
index 86eca614507b..2a2756709f22 100644
--- a/drivers/mfd/dm355evm_msp.c
+++ b/drivers/mfd/dm355evm_msp.c
@@ -18,7 +18,7 @@
#include <linux/gpio.h>
#include <linux/leds.h>
#include <linux/i2c.h>
-#include <linux/i2c/dm355evm_msp.h>
+#include <linux/mfd/dm355evm_msp.h>
/*
diff --git a/drivers/mfd/rk808.c b/drivers/mfd/rk808.c
index fd087cbb0bde..216fbf6adec9 100644
--- a/drivers/mfd/rk808.c
+++ b/drivers/mfd/rk808.c
@@ -70,6 +70,14 @@ static const struct regmap_config rk818_regmap_config = {
.volatile_reg = rk808_is_volatile_reg,
};
+static const struct regmap_config rk805_regmap_config = {
+ .reg_bits = 8,
+ .val_bits = 8,
+ .max_register = RK805_OFF_SOURCE_REG,
+ .cache_type = REGCACHE_RBTREE,
+ .volatile_reg = rk808_is_volatile_reg,
+};
+
static const struct regmap_config rk808_regmap_config = {
.reg_bits = 8,
.val_bits = 8,
@@ -86,6 +94,34 @@ static struct resource rtc_resources[] = {
}
};
+static struct resource rk805_key_resources[] = {
+ {
+ .start = RK805_IRQ_PWRON_FALL,
+ .end = RK805_IRQ_PWRON_FALL,
+ .flags = IORESOURCE_IRQ,
+ },
+ {
+ .start = RK805_IRQ_PWRON_RISE,
+ .end = RK805_IRQ_PWRON_RISE,
+ .flags = IORESOURCE_IRQ,
+ }
+};
+
+static const struct mfd_cell rk805s[] = {
+ { .name = "rk808-clkout", },
+ { .name = "rk808-regulator", },
+ { .name = "rk805-pinctrl", },
+ {
+ .name = "rk808-rtc",
+ .num_resources = ARRAY_SIZE(rtc_resources),
+ .resources = &rtc_resources[0],
+ },
+ { .name = "rk805-pwrkey",
+ .num_resources = ARRAY_SIZE(rk805_key_resources),
+ .resources = &rk805_key_resources[0],
+ },
+};
+
static const struct mfd_cell rk808s[] = {
{ .name = "rk808-clkout", },
{ .name = "rk808-regulator", },
@@ -106,6 +142,20 @@ static const struct mfd_cell rk818s[] = {
},
};
+static const struct rk808_reg_data rk805_pre_init_reg[] = {
+ {RK805_BUCK1_CONFIG_REG, RK805_BUCK1_2_ILMAX_MASK,
+ RK805_BUCK1_2_ILMAX_4000MA},
+ {RK805_BUCK2_CONFIG_REG, RK805_BUCK1_2_ILMAX_MASK,
+ RK805_BUCK1_2_ILMAX_4000MA},
+ {RK805_BUCK3_CONFIG_REG, RK805_BUCK3_4_ILMAX_MASK,
+ RK805_BUCK3_ILMAX_3000MA},
+ {RK805_BUCK4_CONFIG_REG, RK805_BUCK3_4_ILMAX_MASK,
+ RK805_BUCK4_ILMAX_3500MA},
+ {RK805_BUCK4_CONFIG_REG, BUCK_ILMIN_MASK, BUCK_ILMIN_400MA},
+ {RK805_GPIO_IO_POL_REG, SLP_SD_MSK, SLEEP_FUN},
+ {RK805_THERMAL_REG, TEMP_HOTDIE_MSK, TEMP115C},
+};
+
static const struct rk808_reg_data rk808_pre_init_reg[] = {
{ RK808_BUCK3_CONFIG_REG, BUCK_ILMIN_MASK, BUCK_ILMIN_150MA },
{ RK808_BUCK4_CONFIG_REG, BUCK_ILMIN_MASK, BUCK_ILMIN_200MA },
@@ -135,6 +185,41 @@ static const struct rk808_reg_data rk818_pre_init_reg[] = {
VB_LO_SEL_3500MV },
};
+static const struct regmap_irq rk805_irqs[] = {
+ [RK805_IRQ_PWRON_RISE] = {
+ .mask = RK805_IRQ_PWRON_RISE_MSK,
+ .reg_offset = 0,
+ },
+ [RK805_IRQ_VB_LOW] = {
+ .mask = RK805_IRQ_VB_LOW_MSK,
+ .reg_offset = 0,
+ },
+ [RK805_IRQ_PWRON] = {
+ .mask = RK805_IRQ_PWRON_MSK,
+ .reg_offset = 0,
+ },
+ [RK805_IRQ_PWRON_LP] = {
+ .mask = RK805_IRQ_PWRON_LP_MSK,
+ .reg_offset = 0,
+ },
+ [RK805_IRQ_HOTDIE] = {
+ .mask = RK805_IRQ_HOTDIE_MSK,
+ .reg_offset = 0,
+ },
+ [RK805_IRQ_RTC_ALARM] = {
+ .mask = RK805_IRQ_RTC_ALARM_MSK,
+ .reg_offset = 0,
+ },
+ [RK805_IRQ_RTC_PERIOD] = {
+ .mask = RK805_IRQ_RTC_PERIOD_MSK,
+ .reg_offset = 0,
+ },
+ [RK805_IRQ_PWRON_FALL] = {
+ .mask = RK805_IRQ_PWRON_FALL_MSK,
+ .reg_offset = 0,
+ },
+};
+
static const struct regmap_irq rk808_irqs[] = {
/* INT_STS */
[RK808_IRQ_VOUT_LO] = {
@@ -247,6 +332,17 @@ static const struct regmap_irq rk818_irqs[] = {
},
};
+static struct regmap_irq_chip rk805_irq_chip = {
+ .name = "rk805",
+ .irqs = rk805_irqs,
+ .num_irqs = ARRAY_SIZE(rk805_irqs),
+ .num_regs = 1,
+ .status_base = RK805_INT_STS_REG,
+ .mask_base = RK805_INT_STS_MSK_REG,
+ .ack_base = RK805_INT_STS_REG,
+ .init_ack_masked = true,
+};
+
static const struct regmap_irq_chip rk808_irq_chip = {
.name = "rk808",
.irqs = rk808_irqs,
@@ -272,6 +368,25 @@ static const struct regmap_irq_chip rk818_irq_chip = {
};
static struct i2c_client *rk808_i2c_client;
+
+static void rk805_device_shutdown(void)
+{
+ int ret;
+ struct rk808 *rk808 = i2c_get_clientdata(rk808_i2c_client);
+
+ if (!rk808) {
+ dev_warn(&rk808_i2c_client->dev,
+ "have no rk805, so do nothing here\n");
+ return;
+ }
+
+ ret = regmap_update_bits(rk808->regmap,
+ RK805_DEV_CTRL_REG,
+ DEV_OFF, DEV_OFF);
+ if (ret)
+ dev_err(&rk808_i2c_client->dev, "power off error!\n");
+}
+
static void rk808_device_shutdown(void)
{
int ret;
@@ -309,6 +424,7 @@ static void rk818_device_shutdown(void)
}
static const struct of_device_id rk808_of_match[] = {
+ { .compatible = "rockchip,rk805" },
{ .compatible = "rockchip,rk808" },
{ .compatible = "rockchip,rk818" },
{ },
@@ -325,7 +441,7 @@ static int rk808_probe(struct i2c_client *client,
void (*pm_pwroff_fn)(void);
int nr_pre_init_regs;
int nr_cells;
- int pm_off = 0;
+ int pm_off = 0, msb, lsb;
int ret;
int i;
@@ -333,16 +449,34 @@ static int rk808_probe(struct i2c_client *client,
if (!rk808)
return -ENOMEM;
- rk808->variant = i2c_smbus_read_word_data(client, RK808_ID_MSB);
- if (rk808->variant < 0) {
- dev_err(&client->dev, "Failed to read the chip id at 0x%02x\n",
+ /* Read chip variant */
+ msb = i2c_smbus_read_byte_data(client, RK808_ID_MSB);
+ if (msb < 0) {
+ dev_err(&client->dev, "failed to read the chip id at 0x%x\n",
RK808_ID_MSB);
- return rk808->variant;
+ return msb;
+ }
+
+ lsb = i2c_smbus_read_byte_data(client, RK808_ID_LSB);
+ if (lsb < 0) {
+ dev_err(&client->dev, "failed to read the chip id at 0x%x\n",
+ RK808_ID_LSB);
+ return lsb;
}
- dev_dbg(&client->dev, "Chip id: 0x%x\n", (unsigned int)rk808->variant);
+ rk808->variant = ((msb << 8) | lsb) & RK8XX_ID_MSK;
+ dev_info(&client->dev, "chip id: 0x%x\n", (unsigned int)rk808->variant);
switch (rk808->variant) {
+ case RK805_ID:
+ rk808->regmap_cfg = &rk805_regmap_config;
+ rk808->regmap_irq_chip = &rk805_irq_chip;
+ pre_init_reg = rk805_pre_init_reg;
+ nr_pre_init_regs = ARRAY_SIZE(rk805_pre_init_reg);
+ cells = rk805s;
+ nr_cells = ARRAY_SIZE(rk805s);
+ pm_pwroff_fn = rk805_device_shutdown;
+ break;
case RK808_ID:
rk808->regmap_cfg = &rk808_regmap_config;
rk808->regmap_irq_chip = &rk808_irq_chip;
@@ -435,6 +569,7 @@ static int rk808_remove(struct i2c_client *client)
}
static const struct i2c_device_id rk808_ids[] = {
+ { "rk805" },
{ "rk808" },
{ "rk818" },
{ },
diff --git a/drivers/mfd/stm32-lptimer.c b/drivers/mfd/stm32-lptimer.c
new file mode 100644
index 000000000000..075330a25f61
--- /dev/null
+++ b/drivers/mfd/stm32-lptimer.c
@@ -0,0 +1,107 @@
+/*
+ * STM32 Low-Power Timer parent driver.
+ *
+ * Copyright (C) STMicroelectronics 2017
+ *
+ * Author: Fabrice Gasnier <fabrice.gasnier@st.com>
+ *
+ * Inspired by Benjamin Gaignard's stm32-timers driver
+ *
+ * License terms: GNU General Public License (GPL), version 2
+ */
+
+#include <linux/mfd/stm32-lptimer.h>
+#include <linux/module.h>
+#include <linux/of_platform.h>
+
+#define STM32_LPTIM_MAX_REGISTER 0x3fc
+
+static const struct regmap_config stm32_lptimer_regmap_cfg = {
+ .reg_bits = 32,
+ .val_bits = 32,
+ .reg_stride = sizeof(u32),
+ .max_register = STM32_LPTIM_MAX_REGISTER,
+};
+
+static int stm32_lptimer_detect_encoder(struct stm32_lptimer *ddata)
+{
+ u32 val;
+ int ret;
+
+ /*
+ * Quadrature encoder mode bit can only be written and read back when
+ * Low-Power Timer supports it.
+ */
+ ret = regmap_update_bits(ddata->regmap, STM32_LPTIM_CFGR,
+ STM32_LPTIM_ENC, STM32_LPTIM_ENC);
+ if (ret)
+ return ret;
+
+ ret = regmap_read(ddata->regmap, STM32_LPTIM_CFGR, &val);
+ if (ret)
+ return ret;
+
+ ret = regmap_update_bits(ddata->regmap, STM32_LPTIM_CFGR,
+ STM32_LPTIM_ENC, 0);
+ if (ret)
+ return ret;
+
+ ddata->has_encoder = !!(val & STM32_LPTIM_ENC);
+
+ return 0;
+}
+
+static int stm32_lptimer_probe(struct platform_device *pdev)
+{
+ struct device *dev = &pdev->dev;
+ struct stm32_lptimer *ddata;
+ struct resource *res;
+ void __iomem *mmio;
+ int ret;
+
+ ddata = devm_kzalloc(dev, sizeof(*ddata), GFP_KERNEL);
+ if (!ddata)
+ return -ENOMEM;
+
+ res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ mmio = devm_ioremap_resource(dev, res);
+ if (IS_ERR(mmio))
+ return PTR_ERR(mmio);
+
+ ddata->regmap = devm_regmap_init_mmio_clk(dev, "mux", mmio,
+ &stm32_lptimer_regmap_cfg);
+ if (IS_ERR(ddata->regmap))
+ return PTR_ERR(ddata->regmap);
+
+ ddata->clk = devm_clk_get(dev, NULL);
+ if (IS_ERR(ddata->clk))
+ return PTR_ERR(ddata->clk);
+
+ ret = stm32_lptimer_detect_encoder(ddata);
+ if (ret)
+ return ret;
+
+ platform_set_drvdata(pdev, ddata);
+
+ return devm_of_platform_populate(&pdev->dev);
+}
+
+static const struct of_device_id stm32_lptimer_of_match[] = {
+ { .compatible = "st,stm32-lptimer", },
+ {},
+};
+MODULE_DEVICE_TABLE(of, stm32_lptimer_of_match);
+
+static struct platform_driver stm32_lptimer_driver = {
+ .probe = stm32_lptimer_probe,
+ .driver = {
+ .name = "stm32-lptimer",
+ .of_match_table = stm32_lptimer_of_match,
+ },
+};
+module_platform_driver(stm32_lptimer_driver);
+
+MODULE_AUTHOR("Fabrice Gasnier <fabrice.gasnier@st.com>");
+MODULE_DESCRIPTION("STMicroelectronics STM32 Low-Power Timer");
+MODULE_ALIAS("platform:stm32-lptimer");
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/mfd/tps65010.c b/drivers/mfd/tps65010.c
index d829a6131f09..2ab67386b4ef 100644
--- a/drivers/mfd/tps65010.c
+++ b/drivers/mfd/tps65010.c
@@ -32,7 +32,7 @@
#include <linux/mutex.h>
#include <linux/platform_device.h>
-#include <linux/i2c/tps65010.h>
+#include <linux/mfd/tps65010.h>
#include <linux/gpio/driver.h>
diff --git a/drivers/mfd/twl-core.c b/drivers/mfd/twl-core.c
index c64615dca2bd..2a09dde4ca6e 100644
--- a/drivers/mfd/twl-core.c
+++ b/drivers/mfd/twl-core.c
@@ -44,7 +44,7 @@
#include <linux/regulator/machine.h>
#include <linux/i2c.h>
-#include <linux/i2c/twl.h>
+#include <linux/mfd/twl.h>
/* Register descriptions for audio */
#include <linux/mfd/twl4030-audio.h>
@@ -173,7 +173,7 @@ static struct twl_private *twl_priv;
static struct twl_mapping twl4030_map[] = {
/*
* NOTE: don't change this table without updating the
- * <linux/i2c/twl.h> defines for TWL4030_MODULE_*
+ * <linux/mfd/twl.h> defines for TWL4030_MODULE_*
* so they continue to match the order in this table.
*/
@@ -344,7 +344,7 @@ static const struct regmap_config twl4030_regmap_config[4] = {
static struct twl_mapping twl6030_map[] = {
/*
* NOTE: don't change this table without updating the
- * <linux/i2c/twl.h> defines for TWL4030_MODULE_*
+ * <linux/mfd/twl.h> defines for TWL4030_MODULE_*
* so they continue to match the order in this table.
*/
diff --git a/drivers/mfd/twl4030-audio.c b/drivers/mfd/twl4030-audio.c
index 0a1606480023..da16bf45fab4 100644
--- a/drivers/mfd/twl4030-audio.c
+++ b/drivers/mfd/twl4030-audio.c
@@ -30,7 +30,7 @@
#include <linux/platform_device.h>
#include <linux/of.h>
#include <linux/of_platform.h>
-#include <linux/i2c/twl.h>
+#include <linux/mfd/twl.h>
#include <linux/mfd/core.h>
#include <linux/mfd/twl4030-audio.h>
diff --git a/drivers/mfd/twl4030-irq.c b/drivers/mfd/twl4030-irq.c
index 378c02d43bf7..b16c16f194fd 100644
--- a/drivers/mfd/twl4030-irq.c
+++ b/drivers/mfd/twl4030-irq.c
@@ -33,7 +33,7 @@
#include <linux/slab.h>
#include <linux/of.h>
#include <linux/irqdomain.h>
-#include <linux/i2c/twl.h>
+#include <linux/mfd/twl.h>
#include "twl-core.h"
diff --git a/drivers/mfd/twl4030-power.c b/drivers/mfd/twl4030-power.c
index f4b2c29d77e3..6b36932263ba 100644
--- a/drivers/mfd/twl4030-power.c
+++ b/drivers/mfd/twl4030-power.c
@@ -25,7 +25,7 @@
#include <linux/module.h>
#include <linux/pm.h>
-#include <linux/i2c/twl.h>
+#include <linux/mfd/twl.h>
#include <linux/platform_device.h>
#include <linux/of.h>
#include <linux/of_device.h>
diff --git a/drivers/mfd/twl6030-irq.c b/drivers/mfd/twl6030-irq.c
index 53574508a613..e3ec8dfa9f1e 100644
--- a/drivers/mfd/twl6030-irq.c
+++ b/drivers/mfd/twl6030-irq.c
@@ -35,7 +35,7 @@
#include <linux/interrupt.h>
#include <linux/irq.h>
#include <linux/kthread.h>
-#include <linux/i2c/twl.h>
+#include <linux/mfd/twl.h>
#include <linux/platform_device.h>
#include <linux/suspend.h>
#include <linux/of.h>