Merge tag 'mxs-soc-3.12' of git://git.linaro.org/people/shawnguo/linu…

…x-2.6 into next/soc

From Shawn Guo:

It contains mxs soc changes for 3.12.

- Run savedefconfig on mxs_defconfig to clean it up
- Fix on mxs_restart() routine for interrupt context calling
- A few other random updates and cleanups

* tag 'mxs-soc-3.12' of git://git.linaro.org/people/shawnguo/linux-2.6:
  ARM: mxs: pm: Include "pm.h"
  ARM: mxs: Simplify detection of CrystalFontz boards
  ARM: mach-mxs: Remove "TO" string from revision field
  ARM: mxs: Fix BUG() when invoking mxs_restart() from interrupt context
  ARM: mxs: Allow DT clock providers
  ARM: mxs_defconfig: Cleanup mxs_defconfig

arch/arm/configs/mxs_defconfig

@@ -1,4 +1,3 @@
-CONFIG_EXPERIMENTAL=y
 CONFIG_SYSVIPC=y
 CONFIG_NO_HZ=y
 CONFIG_HIGH_RES_TIMERS=y
@@ -27,7 +26,6 @@ CONFIG_ARCH_MXS=y
 # CONFIG_ARM_THUMB is not set
 CONFIG_PREEMPT_VOLUNTARY=y
 CONFIG_AEABI=y
-CONFIG_AUTO_ZRELADDR=y
 CONFIG_FPE_NWFPE=y
 CONFIG_NET=y
 CONFIG_PACKET=y
@@ -43,16 +41,13 @@ CONFIG_SYN_COOKIES=y
 # CONFIG_INET_DIAG is not set
 # CONFIG_IPV6 is not set
 CONFIG_CAN=m
-CONFIG_CAN_RAW=m
-CONFIG_CAN_BCM=m
 CONFIG_CAN_FLEXCAN=m
 # CONFIG_WIRELESS is not set
 CONFIG_DEVTMPFS=y
 CONFIG_DEVTMPFS_MOUNT=y
 # CONFIG_FIRMWARE_IN_KERNEL is not set
 CONFIG_MTD=y
 CONFIG_MTD_CMDLINE_PARTS=y
-CONFIG_MTD_CHAR=y
 CONFIG_MTD_BLOCK=y
 CONFIG_MTD_DATAFLASH=y
 CONFIG_MTD_M25P80=y
@@ -67,12 +62,12 @@ CONFIG_SCSI=y
 CONFIG_BLK_DEV_SD=y
 CONFIG_NETDEVICES=y
 CONFIG_ENC28J60=y
-CONFIG_USB_USBNET=y
-CONFIG_USB_NET_SMSC95XX=y
 CONFIG_SMSC_PHY=y
 CONFIG_ICPLUS_PHY=y
 CONFIG_REALTEK_PHY=y
 CONFIG_MICREL_PHY=y
+CONFIG_USB_USBNET=y
+CONFIG_USB_NET_SMSC95XX=y
 # CONFIG_WLAN is not set
 # CONFIG_INPUT_MOUSEDEV_PSAUX is not set
 CONFIG_INPUT_EVDEV=y
@@ -110,7 +105,6 @@ CONFIG_LCD_CLASS_DEVICE=y
 CONFIG_BACKLIGHT_CLASS_DEVICE=y
 CONFIG_BACKLIGHT_PWM=y
 CONFIG_FRAMEBUFFER_CONSOLE=y
-CONFIG_FONTS=y
 CONFIG_LOGO=y
 CONFIG_SOUND=y
 CONFIG_SND=y
@@ -119,9 +113,9 @@ CONFIG_SND_MXS_SOC=y
 CONFIG_SND_SOC_MXS_SGTL5000=y
 CONFIG_USB=y
 CONFIG_USB_EHCI_HCD=y
+CONFIG_USB_STORAGE=y
 CONFIG_USB_CHIPIDEA=y
 CONFIG_USB_CHIPIDEA_HOST=y
-CONFIG_USB_STORAGE=y
 CONFIG_USB_PHY=y
 CONFIG_USB_MXS_PHY=y
 CONFIG_MMC=y
@@ -143,9 +137,9 @@ CONFIG_DMADEVICES=y
 CONFIG_MXS_DMA=y
 CONFIG_STAGING=y
 CONFIG_MXS_LRADC=y
-CONFIG_IIO_SYSFS_TRIGGER=y
 CONFIG_COMMON_CLK_DEBUG=y
 CONFIG_IIO=y
+CONFIG_IIO_SYSFS_TRIGGER=y
 CONFIG_PWM=y
 CONFIG_PWM_MXS=y
 CONFIG_EXT2_FS=y
@@ -173,18 +167,19 @@ CONFIG_NLS_CODEPAGE_850=y
 CONFIG_NLS_ISO8859_1=y
 CONFIG_NLS_ISO8859_15=y
 CONFIG_PRINTK_TIME=y
+CONFIG_DEBUG_INFO=y
 CONFIG_FRAME_WARN=2048
-CONFIG_MAGIC_SYSRQ=y
 CONFIG_UNUSED_SYMBOLS=y
+CONFIG_MAGIC_SYSRQ=y
 CONFIG_DEBUG_KERNEL=y
 CONFIG_LOCKUP_DETECTOR=y
 CONFIG_TIMER_STATS=y
 CONFIG_PROVE_LOCKING=y
-CONFIG_DEBUG_INFO=y
 CONFIG_BLK_DEV_IO_TRACE=y
 CONFIG_STRICT_DEVMEM=y
 CONFIG_DEBUG_USER=y
 # CONFIG_CRYPTO_ANSI_CPRNG is not set
 # CONFIG_CRYPTO_HW is not set
 CONFIG_CRC_ITU_T=m
 CONFIG_CRC7=m
+CONFIG_FONTS=y

arch/arm/mach-mxs/mach-mxs.c

@@ -14,6 +14,7 @@
 #include <linux/clk/mxs.h>
 #include <linux/clkdev.h>
 #include <linux/clocksource.h>
+#include <linux/clk-provider.h>
 #include <linux/delay.h>
 #include <linux/err.h>
 #include <linux/gpio.h>
@@ -61,6 +62,8 @@
 static u32 chipid;
 static u32 socid;
 
+static void __iomem *reset_addr;
+
 static inline void __mxs_setl(u32 mask, void __iomem *reg)
 {
 	__raw_writel(mask, reg + MXS_SET_ADDR);
@@ -393,12 +396,33 @@ static const char __init *mxs_get_revision(void)
 	u32 rev = mxs_get_cpu_rev();
 
 	if (rev != MXS_CHIP_REV_UNKNOWN)
-		return kasprintf(GFP_KERNEL, "TO%d.%d", (rev >> 4) & 0xf,
+		return kasprintf(GFP_KERNEL, "%d.%d", (rev >> 4) & 0xf,
 				rev & 0xf);
 	else
 		return kasprintf(GFP_KERNEL, "%s", "Unknown");
 }
 
+#define MX23_CLKCTRL_RESET_OFFSET	0x120
+#define MX28_CLKCTRL_RESET_OFFSET	0x1e0
+
+static int __init mxs_restart_init(void)
+{
+	struct device_node *np;
+
+	np = of_find_compatible_node(NULL, NULL, "fsl,clkctrl");
+	reset_addr = of_iomap(np, 0);
+	if (!reset_addr)
+		return -ENODEV;
+
+	if (of_device_is_compatible(np, "fsl,imx23-clkctrl"))
+		reset_addr += MX23_CLKCTRL_RESET_OFFSET;
+	else
+		reset_addr += MX28_CLKCTRL_RESET_OFFSET;
+	of_node_put(np);
+
+	return 0;
+}
+
 static void __init mxs_machine_init(void)
 {
 	struct device_node *root;
@@ -433,50 +457,35 @@ static void __init mxs_machine_init(void)
 		imx28_evk_init();
 	else if (of_machine_is_compatible("bluegiga,apx4devkit"))
 		apx4devkit_init();
-	else if (of_machine_is_compatible("crystalfontz,cfa10037") ||
-		 of_machine_is_compatible("crystalfontz,cfa10049") ||
-		 of_machine_is_compatible("crystalfontz,cfa10055") ||
-		 of_machine_is_compatible("crystalfontz,cfa10057"))
+	else if (of_machine_is_compatible("crystalfontz,cfa10036"))
 		crystalfontz_init();
 
 	of_platform_populate(NULL, of_default_bus_match_table,
 			     NULL, parent);
 
+	mxs_restart_init();
+
 	if (of_machine_is_compatible("karo,tx28"))
 		tx28_post_init();
 }
 
-#define MX23_CLKCTRL_RESET_OFFSET	0x120
-#define MX28_CLKCTRL_RESET_OFFSET	0x1e0
 #define MXS_CLKCTRL_RESET_CHIP		(1 << 1)
 
 /*
  * Reset the system. It is called by machine_restart().
  */
 static void mxs_restart(enum reboot_mode mode, const char *cmd)
 {
-	struct device_node *np;
-	void __iomem *reset_addr;
+	if (reset_addr) {
+		/* reset the chip */
+		__mxs_setl(MXS_CLKCTRL_RESET_CHIP, reset_addr);
 
-	np = of_find_compatible_node(NULL, NULL, "fsl,clkctrl");
-	reset_addr = of_iomap(np, 0);
-	if (!reset_addr)
-		goto soft;
+		pr_err("Failed to assert the chip reset\n");
 
-	if (of_device_is_compatible(np, "fsl,imx23-clkctrl"))
-		reset_addr += MX23_CLKCTRL_RESET_OFFSET;
-	else
-		reset_addr += MX28_CLKCTRL_RESET_OFFSET;
-
-	/* reset the chip */
-	__mxs_setl(MXS_CLKCTRL_RESET_CHIP, reset_addr);
-
-	pr_err("Failed to assert the chip reset\n");
-
-	/* Delay to allow the serial port to show the message */
-	mdelay(50);
+		/* Delay to allow the serial port to show the message */
+		mdelay(50);
+	}
 
-soft:
 	/* We'll take a jump through zero as a poor second */
 	soft_restart(0);
 }
@@ -487,6 +496,7 @@ static void __init mxs_timer_init(void)
 		mx23_clocks_init();
 	else
 		mx28_clocks_init();
+	of_clk_init(NULL);
 	clocksource_of_init();
 }
 

arch/arm/mach-mxs/pm.c

@@ -15,6 +15,7 @@
 #include <linux/kernel.h>
 #include <linux/suspend.h>
 #include <linux/io.h>
+#include "pm.h"
 
 static int mxs_suspend_enter(suspend_state_t state)
 {