Merge tag 'imx-soc-4.15' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux into next/soc

Pull "i.MX SoC changes for 4.15" from Shawn Guo:

 - A series from Marco Franchi from to clean up build warnings see with
   W=1 in arch/arm/mach-imx/.
 - Move i.MX6 speed grading check from i.MX platform code to cpufreq
   driver.  The patch is suggested by cpufreq folks to go through
   arm-soc tree.
 - Enable cpuidle support on i.MX6DL starting from IMX_CHIP_REVISION_1_1.
 - Constify platform_suspend_ops for MXS platform.

* tag 'imx-soc-4.15' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux:
  cpufreq: imx6q: Move speed grading check to cpufreq driver
  ARM: imx: Enable cpuidle for i.MX6DL starting at 1.1
  ARM: imx: mach-mx31lite: Make mx31lite_map_io static
  ARM: imx: cpuidle-imx5: Include "cpuidle.h" header file
  ARM: imx: 3ds-debugboard: Include "3ds_debugboard.h" header file
  ARM: imx: imx31moboard: Include "board-mx31moboard.h" header file
  ARM: mxs: constify platform_suspend_ops

7 files changed, 14 insertions, 92 deletions

diff --git a/arch/arm/mach-imx/3ds_debugboard.c b/arch/arm/mach-imx/3ds_debugboard.c
index cda330c93d61..0015abe9cb2b 100644
--- a/arch/arm/mach-imx/3ds_debugboard.c
+++ b/arch/arm/mach-imx/3ds_debugboard.c
@@ -20,7 +20,7 @@
 #include <linux/smsc911x.h>
 #include <linux/regulator/machine.h>
 #include <linux/regulator/fixed.h>
-
+#include "3ds_debugboard.h"
 #include "hardware.h"
 
 /* LAN9217 ethernet base address */
diff --git a/arch/arm/mach-imx/cpuidle-imx5.c b/arch/arm/mach-imx/cpuidle-imx5.c
index 3feca526d16b..db0127606aed 100644
--- a/arch/arm/mach-imx/cpuidle-imx5.c
+++ b/arch/arm/mach-imx/cpuidle-imx5.c
@@ -9,6 +9,7 @@
 #include <linux/cpuidle.h>
 #include <linux/module.h>
 #include <asm/system_misc.h>
+#include "cpuidle.h"
 
 static int imx5_cpuidle_enter(struct cpuidle_device *dev,
 			      struct cpuidle_driver *drv, int index)
diff --git a/arch/arm/mach-imx/mach-imx6q.c b/arch/arm/mach-imx/mach-imx6q.c
index 45801b27ee5c..7d80a0ae723c 100644
--- a/arch/arm/mach-imx/mach-imx6q.c
+++ b/arch/arm/mach-imx/mach-imx6q.c
@@ -286,101 +286,20 @@ static void __init imx6q_init_machine(void)
 	imx6q_axi_init();
 }
 
-#define OCOTP_CFG3			0x440
-#define OCOTP_CFG3_SPEED_SHIFT		16
-#define OCOTP_CFG3_SPEED_1P2GHZ		0x3
-#define OCOTP_CFG3_SPEED_996MHZ		0x2
-#define OCOTP_CFG3_SPEED_852MHZ		0x1
-
-static void __init imx6q_opp_check_speed_grading(struct device *cpu_dev)
-{
-	struct device_node *np;
-	void __iomem *base;
-	u32 val;
-
-	np = of_find_compatible_node(NULL, NULL, "fsl,imx6q-ocotp");
-	if (!np) {
-		pr_warn("failed to find ocotp node\n");
-		return;
-	}
-
-	base = of_iomap(np, 0);
-	if (!base) {
-		pr_warn("failed to map ocotp\n");
-		goto put_node;
-	}
-
-	/*
-	 * SPEED_GRADING[1:0] defines the max speed of ARM:
-	 * 2b'11: 1200000000Hz;
-	 * 2b'10: 996000000Hz;
-	 * 2b'01: 852000000Hz; -- i.MX6Q Only, exclusive with 996MHz.
-	 * 2b'00: 792000000Hz;
-	 * We need to set the max speed of ARM according to fuse map.
-	 */
-	val = readl_relaxed(base + OCOTP_CFG3);
-	val >>= OCOTP_CFG3_SPEED_SHIFT;
-	val &= 0x3;
-
-	if ((val != OCOTP_CFG3_SPEED_1P2GHZ) && cpu_is_imx6q())
-		if (dev_pm_opp_disable(cpu_dev, 1200000000))
-			pr_warn("failed to disable 1.2 GHz OPP\n");
-	if (val < OCOTP_CFG3_SPEED_996MHZ)
-		if (dev_pm_opp_disable(cpu_dev, 996000000))
-			pr_warn("failed to disable 996 MHz OPP\n");
-	if (cpu_is_imx6q()) {
-		if (val != OCOTP_CFG3_SPEED_852MHZ)
-			if (dev_pm_opp_disable(cpu_dev, 852000000))
-				pr_warn("failed to disable 852 MHz OPP\n");
-	}
-	iounmap(base);
-put_node:
-	of_node_put(np);
-}
-
-static void __init imx6q_opp_init(void)
-{
-	struct device_node *np;
-	struct device *cpu_dev = get_cpu_device(0);
-
-	if (!cpu_dev) {
-		pr_warn("failed to get cpu0 device\n");
-		return;
-	}
-	np = of_node_get(cpu_dev->of_node);
-	if (!np) {
-		pr_warn("failed to find cpu0 node\n");
-		return;
-	}
-
-	if (dev_pm_opp_of_add_table(cpu_dev)) {
-		pr_warn("failed to init OPP table\n");
-		goto put_node;
-	}
-
-	imx6q_opp_check_speed_grading(cpu_dev);
-
-put_node:
-	of_node_put(np);
-}
-
-static struct platform_device imx6q_cpufreq_pdev = {
-	.name = "imx6q-cpufreq",
-};
-
 static void __init imx6q_init_late(void)
 {
 	/*
-	 * WAIT mode is broken on TO 1.0 and 1.1, so there is no point
-	 * to run cpuidle on them.
+	 * WAIT mode is broken on imx6 Dual/Quad revision 1.0 and 1.1 so
+	 * there is no point to run cpuidle on them.
+	 *
+	 * It does work on imx6 Solo/DualLite starting from 1.1
 	 */
-	if (imx_get_soc_revision() > IMX_CHIP_REVISION_1_1)
+	if ((cpu_is_imx6q() && imx_get_soc_revision() > IMX_CHIP_REVISION_1_1) ||
+	    (cpu_is_imx6dl() && imx_get_soc_revision() > IMX_CHIP_REVISION_1_0))
 		imx6q_cpuidle_init();
 
-	if (IS_ENABLED(CONFIG_ARM_IMX6Q_CPUFREQ)) {
-		imx6q_opp_init();
-		platform_device_register(&imx6q_cpufreq_pdev);
-	}
+	if (IS_ENABLED(CONFIG_ARM_IMX6Q_CPUFREQ))
+		platform_device_register_simple("imx6q-cpufreq", -1, NULL, 0);
 }
 
 static void __init imx6q_map_io(void)
diff --git a/arch/arm/mach-imx/mach-mx31lite.c b/arch/arm/mach-imx/mach-mx31lite.c
index f033a57d5694..a3250bc7f114 100644
--- a/arch/arm/mach-imx/mach-mx31lite.c
+++ b/arch/arm/mach-imx/mach-mx31lite.c
@@ -245,7 +245,7 @@ static struct map_desc mx31lite_io_desc[] __initdata = {
 /*
  * Set up static virtual mappings.
  */
-void __init mx31lite_map_io(void)
+static void __init mx31lite_map_io(void)
 {
 	mx31_map_io();
 	iotable_init(mx31lite_io_desc, ARRAY_SIZE(mx31lite_io_desc));
diff --git a/arch/arm/mach-imx/mx31moboard-devboard.c b/arch/arm/mach-imx/mx31moboard-devboard.c
index 1e91a0918e83..3c224f41e68e 100644
--- a/arch/arm/mach-imx/mx31moboard-devboard.c
+++ b/arch/arm/mach-imx/mx31moboard-devboard.c
@@ -22,6 +22,7 @@
 
 #include <linux/usb/otg.h>
 
+#include "board-mx31moboard.h"
 #include "common.h"
 #include "devices-imx31.h"
 #include "ehci.h"
diff --git a/arch/arm/mach-imx/mx31moboard-marxbot.c b/arch/arm/mach-imx/mx31moboard-marxbot.c
index 922d49175cb4..9a5a869be1ae 100644
--- a/arch/arm/mach-imx/mx31moboard-marxbot.c
+++ b/arch/arm/mach-imx/mx31moboard-marxbot.c
@@ -24,6 +24,7 @@
 
 #include <linux/usb/otg.h>
 
+#include "board-mx31moboard.h"
 #include "common.h"
 #include "devices-imx31.h"
 #include "ehci.h"
diff --git a/arch/arm/mach-mxs/pm.c b/arch/arm/mach-mxs/pm.c
index 0170e99fd70f..6ae057c2cf9f 100644
--- a/arch/arm/mach-mxs/pm.c
+++ b/arch/arm/mach-mxs/pm.c
@@ -30,7 +30,7 @@ static int mxs_suspend_enter(suspend_state_t state)
 	return 0;
 }
 
-static struct platform_suspend_ops mxs_suspend_ops = {
+static const struct platform_suspend_ops mxs_suspend_ops = {
 	.enter = mxs_suspend_enter,
 	.valid = suspend_valid_only_mem,
 };