Merge remote-tracking branch 'origin/next' into kvm-ppc-next

Conflicts:
	mm/Kconfig

CMA DMA split and ZSWAP introduction were conflicting, fix up manually.

34 files changed, 1195 insertions, 728 deletions

diff --git a/drivers/watchdog/Kconfig b/drivers/watchdog/Kconfig
index e89fc313397..362085d7ad8 100644
--- a/drivers/watchdog/Kconfig
+++ b/drivers/watchdog/Kconfig
@@ -221,15 +221,6 @@ config DW_WATCHDOG
 	  To compile this driver as a module, choose M here: the
 	  module will be called dw_wdt.
 
-config MPCORE_WATCHDOG
-	tristate "MPcore watchdog"
-	depends on HAVE_ARM_TWD
-	help
-	  Watchdog timer embedded into the MPcore system.
-
-	  To compile this driver as a module, choose M here: the
-	  module will be called mpcore_wdt.
-
 config EP93XX_WATCHDOG
 	tristate "EP93xx Watchdog"
 	depends on ARCH_EP93XX
@@ -291,7 +282,7 @@ config DAVINCI_WATCHDOG
 
 config ORION_WATCHDOG
 	tristate "Orion watchdog"
-	depends on ARCH_ORION5X || ARCH_KIRKWOOD
+	depends on ARCH_ORION5X || ARCH_KIRKWOOD || ARCH_DOVE
 	select WATCHDOG_CORE
 	help
 	  Say Y here if to include support for the watchdog timer
@@ -687,6 +678,17 @@ config HP_WATCHDOG
 	  To compile this driver as a module, choose M here: the module will be
 	  called hpwdt.
 
+config KEMPLD_WDT
+	tristate "Kontron COM Watchdog Timer"
+	depends on MFD_KEMPLD
+	select WATCHDOG_CORE
+	help
+	  Support for the PLD watchdog on some Kontron ETX and COMexpress
+	  (ETXexpress) modules
+
+	  This driver can also be built as a module. If so, the module will be
+	  called kempld_wdt.
+
 config HPWDT_NMI_DECODING
 	bool "NMI decoding support for the HP ProLiant iLO2+ Hardware Watchdog Timer"
 	depends on HP_WATCHDOG
@@ -1072,7 +1074,7 @@ config TXX9_WDT
 
 config OCTEON_WDT
 	tristate "Cavium OCTEON SOC family Watchdog Timer"
-	depends on CPU_CAVIUM_OCTEON
+	depends on CAVIUM_OCTEON_SOC
 	default y
 	select EXPORT_UASM if OCTEON_WDT = m
 	help
@@ -1098,6 +1100,17 @@ config BCM63XX_WDT
 	  To compile this driver as a loadable module, choose M here.
 	  The module will be called bcm63xx_wdt.
 
+config BCM2835_WDT
+	tristate "Broadcom BCM2835 hardware watchdog"
+	depends on ARCH_BCM2835
+	select WATCHDOG_CORE
+	help
+	  Watchdog driver for the built in watchdog hardware in Broadcom
+	  BCM2835 SoC.
+
+	  To compile this driver as a loadable module, choose M here.
+	  The module will be called bcm2835_wdt.
+
 config LANTIQ_WDT
 	tristate "Lantiq SoC watchdog"
 	depends on LANTIQ
@@ -1172,6 +1185,18 @@ config BOOKE_WDT_DEFAULT_TIMEOUT
 
 	  The value can be overridden by the wdt_period command-line parameter.
 
+config MEN_A21_WDT
+       tristate "MEN A21 VME CPU Carrier Board Watchdog Timer"
+       select WATCHDOG_CORE
+       depends on GPIOLIB
+       help
+        Watchdog driver for MEN A21 VMEbus CPU Carrier Boards.
+
+	The driver can also be built as a module. If so, the module will be
+	called mena21_wdt.
+
+	If unsure select N here.
+
 # PPC64 Architecture
 
 config WATCHDOG_RTAS
diff --git a/drivers/watchdog/Makefile b/drivers/watchdog/Makefile
index a300b948f25..2f26a0b47dd 100644
--- a/drivers/watchdog/Makefile
+++ b/drivers/watchdog/Makefile
@@ -41,7 +41,6 @@ obj-$(CONFIG_KS8695_WATCHDOG) += ks8695_wdt.o
 obj-$(CONFIG_S3C2410_WATCHDOG) += s3c2410_wdt.o
 obj-$(CONFIG_SA1100_WATCHDOG) += sa1100_wdt.o
 obj-$(CONFIG_DW_WATCHDOG) += dw_wdt.o
-obj-$(CONFIG_MPCORE_WATCHDOG) += mpcore_wdt.o
 obj-$(CONFIG_EP93XX_WATCHDOG) += ep93xx_wdt.o
 obj-$(CONFIG_PNX4008_WATCHDOG) += pnx4008_wdt.o
 obj-$(CONFIG_IOP_WATCHDOG) += iop_wdt.o
@@ -54,6 +53,7 @@ obj-$(CONFIG_TS72XX_WATCHDOG) += ts72xx_wdt.o
 obj-$(CONFIG_IMX2_WDT) += imx2_wdt.o
 obj-$(CONFIG_UX500_WATCHDOG) += ux500_wdt.o
 obj-$(CONFIG_RETU_WATCHDOG) += retu_wdt.o
+obj-$(CONFIG_BCM2835_WDT) += bcm2835_wdt.o
 
 # AVR32 Architecture
 obj-$(CONFIG_AT32AP700X_WDT) += at32ap700x_wdt.o
@@ -90,6 +90,7 @@ endif
 obj-$(CONFIG_IT8712F_WDT) += it8712f_wdt.o
 obj-$(CONFIG_IT87_WDT) += it87_wdt.o
 obj-$(CONFIG_HP_WATCHDOG) += hpwdt.o
+obj-$(CONFIG_KEMPLD_WDT) += kempld_wdt.o
 obj-$(CONFIG_SC1200_WDT) += sc1200wdt.o
 obj-$(CONFIG_SCx200_WDT) += scx200_wdt.o
 obj-$(CONFIG_PC87413_WDT) += pc87413_wdt.o
@@ -143,6 +144,7 @@ obj-$(CONFIG_8xxx_WDT) += mpc8xxx_wdt.o
 obj-$(CONFIG_MV64X60_WDT) += mv64x60_wdt.o
 obj-$(CONFIG_PIKA_WDT) += pika_wdt.o
 obj-$(CONFIG_BOOKE_WDT) += booke_wdt.o
+obj-$(CONFIG_MEN_A21_WDT) += mena21_wdt.o
 
 # PPC64 Architecture
 obj-$(CONFIG_WATCHDOG_RTAS) += wdrtas.o
diff --git a/drivers/watchdog/at32ap700x_wdt.c b/drivers/watchdog/at32ap700x_wdt.c
index 7a715e3e682..b178e717ef0 100644
--- a/drivers/watchdog/at32ap700x_wdt.c
+++ b/drivers/watchdog/at32ap700x_wdt.c
@@ -321,13 +321,14 @@ static int __init at32_wdt_probe(struct platform_device *pdev)
 		return -ENXIO;
 	}
 
-	wdt = kzalloc(sizeof(struct wdt_at32ap700x), GFP_KERNEL);
+	wdt = devm_kzalloc(&pdev->dev, sizeof(struct wdt_at32ap700x),
+			GFP_KERNEL);
 	if (!wdt) {
 		dev_dbg(&pdev->dev, "no memory for wdt structure\n");
 		return -ENOMEM;
 	}
 
-	wdt->regs = ioremap(regs->start, resource_size(regs));
+	wdt->regs = devm_ioremap(&pdev->dev, regs->start, resource_size(regs));
 	if (!wdt->regs) {
 		ret = -ENOMEM;
 		dev_dbg(&pdev->dev, "could not map I/O memory\n");
@@ -342,7 +343,7 @@ static int __init at32_wdt_probe(struct platform_device *pdev)
 		dev_info(&pdev->dev, "CPU must be reset with external "
 				"reset or POR due to silicon errata.\n");
 		ret = -EIO;
-		goto err_iounmap;
+		goto err_free;
 	} else {
 		wdt->users = 0;
 	}
@@ -364,7 +365,7 @@ static int __init at32_wdt_probe(struct platform_device *pdev)
 	ret = misc_register(&wdt->miscdev);
 	if (ret) {
 		dev_dbg(&pdev->dev, "failed to register wdt miscdev\n");
-		goto err_register;
+		goto err_free;
 	}
 
 	dev_info(&pdev->dev,
@@ -373,12 +374,7 @@ static int __init at32_wdt_probe(struct platform_device *pdev)
 
 	return 0;
 
-err_register:
-	platform_set_drvdata(pdev, NULL);
-err_iounmap:
-	iounmap(wdt->regs);
 err_free:
-	kfree(wdt);
 	wdt = NULL;
 	return ret;
 }
@@ -391,10 +387,7 @@ static int __exit at32_wdt_remove(struct platform_device *pdev)
 			at32_wdt_stop();
 
 		misc_deregister(&wdt->miscdev);
-		iounmap(wdt->regs);
-		kfree(wdt);
 		wdt = NULL;
-		platform_set_drvdata(pdev, NULL);
 	}
 	return 0;
 }
diff --git a/drivers/watchdog/bcm2835_wdt.c b/drivers/watchdog/bcm2835_wdt.c
new file mode 100644
index 00000000000..61566fc47f8
--- /dev/null
+++ b/drivers/watchdog/bcm2835_wdt.c
@@ -0,0 +1,189 @@
+/*
+ * Watchdog driver for Broadcom BCM2835
+ *
+ * "bcm2708_wdog" driver written by Luke Diamand that was obtained from
+ * branch "rpi-3.6.y" of git://github.com/raspberrypi/linux.git was used
+ * as a hardware reference for the Broadcom BCM2835 watchdog timer.
+ *
+ * Copyright (C) 2013 Lubomir Rintel <lkundrak@v3.sk>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ */
+
+#include <linux/types.h>
+#include <linux/module.h>
+#include <linux/io.h>
+#include <linux/watchdog.h>
+#include <linux/platform_device.h>
+#include <linux/of_address.h>
+#include <linux/miscdevice.h>
+
+#define PM_RSTC				0x1c
+#define PM_WDOG				0x24
+
+#define PM_PASSWORD			0x5a000000
+
+#define PM_WDOG_TIME_SET		0x000fffff
+#define PM_RSTC_WRCFG_CLR		0xffffffcf
+#define PM_RSTC_WRCFG_SET		0x00000030
+#define PM_RSTC_WRCFG_FULL_RESET	0x00000020
+#define PM_RSTC_RESET			0x00000102
+
+#define SECS_TO_WDOG_TICKS(x) ((x) << 16)
+#define WDOG_TICKS_TO_SECS(x) ((x) >> 16)
+
+struct bcm2835_wdt {
+	void __iomem		*base;
+	spinlock_t		lock;
+};
+
+static unsigned int heartbeat;
+static bool nowayout = WATCHDOG_NOWAYOUT;
+
+static int bcm2835_wdt_start(struct watchdog_device *wdog)
+{
+	struct bcm2835_wdt *wdt = watchdog_get_drvdata(wdog);
+	uint32_t cur;
+	unsigned long flags;
+
+	spin_lock_irqsave(&wdt->lock, flags);
+
+	writel_relaxed(PM_PASSWORD | (SECS_TO_WDOG_TICKS(wdog->timeout) &
+				PM_WDOG_TIME_SET), wdt->base + PM_WDOG);
+	cur = readl_relaxed(wdt->base + PM_RSTC);
+	writel_relaxed(PM_PASSWORD | (cur & PM_RSTC_WRCFG_CLR) |
+		  PM_RSTC_WRCFG_FULL_RESET, wdt->base + PM_RSTC);
+
+	spin_unlock_irqrestore(&wdt->lock, flags);
+
+	return 0;
+}
+
+static int bcm2835_wdt_stop(struct watchdog_device *wdog)
+{
+	struct bcm2835_wdt *wdt = watchdog_get_drvdata(wdog);
+
+	writel_relaxed(PM_PASSWORD | PM_RSTC_RESET, wdt->base + PM_RSTC);
+	dev_info(wdog->dev, "Watchdog timer stopped");
+	return 0;
+}
+
+static int bcm2835_wdt_set_timeout(struct watchdog_device *wdog, unsigned int t)
+{
+	wdog->timeout = t;
+	return 0;
+}
+
+static unsigned int bcm2835_wdt_get_timeleft(struct watchdog_device *wdog)
+{
+	struct bcm2835_wdt *wdt = watchdog_get_drvdata(wdog);
+
+	uint32_t ret = readl_relaxed(wdt->base + PM_WDOG);
+	return WDOG_TICKS_TO_SECS(ret & PM_WDOG_TIME_SET);
+}
+
+static struct watchdog_ops bcm2835_wdt_ops = {
+	.owner =	THIS_MODULE,
+	.start =	bcm2835_wdt_start,
+	.stop =		bcm2835_wdt_stop,
+	.set_timeout =	bcm2835_wdt_set_timeout,
+	.get_timeleft =	bcm2835_wdt_get_timeleft,
+};
+
+static struct watchdog_info bcm2835_wdt_info = {
+	.options =	WDIOF_SETTIMEOUT | WDIOF_MAGICCLOSE |
+			WDIOF_KEEPALIVEPING,
+	.identity =	"Broadcom BCM2835 Watchdog timer",
+};
+
+static struct watchdog_device bcm2835_wdt_wdd = {
+	.info =		&bcm2835_wdt_info,
+	.ops =		&bcm2835_wdt_ops,
+	.min_timeout =	1,
+	.max_timeout =	WDOG_TICKS_TO_SECS(PM_WDOG_TIME_SET),
+	.timeout =	WDOG_TICKS_TO_SECS(PM_WDOG_TIME_SET),
+};
+
+static int bcm2835_wdt_probe(struct platform_device *pdev)
+{
+	struct device *dev = &pdev->dev;
+	struct device_node *np = dev->of_node;
+	struct bcm2835_wdt *wdt;
+	int err;
+
+	wdt = devm_kzalloc(dev, sizeof(struct bcm2835_wdt), GFP_KERNEL);
+	if (!wdt) {
+		dev_err(dev, "Failed to allocate memory for watchdog device");
+		return -ENOMEM;
+	}
+	platform_set_drvdata(pdev, wdt);
+
+	spin_lock_init(&wdt->lock);
+
+	wdt->base = of_iomap(np, 0);
+	if (!wdt->base) {
+		dev_err(dev, "Failed to remap watchdog regs");
+		return -ENODEV;
+	}
+
+	watchdog_set_drvdata(&bcm2835_wdt_wdd, wdt);
+	watchdog_init_timeout(&bcm2835_wdt_wdd, heartbeat, dev);
+	watchdog_set_nowayout(&bcm2835_wdt_wdd, nowayout);
+	err = watchdog_register_device(&bcm2835_wdt_wdd);
+	if (err) {
+		dev_err(dev, "Failed to register watchdog device");
+		iounmap(wdt->base);
+		return err;
+	}
+
+	dev_info(dev, "Broadcom BCM2835 watchdog timer");
+	return 0;
+}
+
+static int bcm2835_wdt_remove(struct platform_device *pdev)
+{
+	struct bcm2835_wdt *wdt = platform_get_drvdata(pdev);
+
+	watchdog_unregister_device(&bcm2835_wdt_wdd);
+	iounmap(wdt->base);
+
+	return 0;
+}
+
+static void bcm2835_wdt_shutdown(struct platform_device *pdev)
+{
+	bcm2835_wdt_stop(&bcm2835_wdt_wdd);
+}
+
+static const struct of_device_id bcm2835_wdt_of_match[] = {
+	{ .compatible = "brcm,bcm2835-pm-wdt", },
+	{},
+};
+MODULE_DEVICE_TABLE(of, bcm2835_wdt_of_match);
+
+static struct platform_driver bcm2835_wdt_driver = {
+	.probe		= bcm2835_wdt_probe,
+	.remove		= bcm2835_wdt_remove,
+	.shutdown	= bcm2835_wdt_shutdown,
+	.driver = {
+		.name =		"bcm2835-wdt",
+		.owner =	THIS_MODULE,
+		.of_match_table = bcm2835_wdt_of_match,
+	},
+};
+module_platform_driver(bcm2835_wdt_driver);
+
+module_param(heartbeat, uint, 0);
+MODULE_PARM_DESC(heartbeat, "Initial watchdog heartbeat in seconds");
+
+module_param(nowayout, bool, 0);
+MODULE_PARM_DESC(nowayout, "Watchdog cannot be stopped once started (default="
+				__MODULE_STRING(WATCHDOG_NOWAYOUT) ")");
+
+MODULE_AUTHOR("Lubomir Rintel <lkundrak@v3.sk>");
+MODULE_DESCRIPTION("Driver for Broadcom BCM2835 watchdog timer");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR);
diff --git a/drivers/watchdog/bcm63xx_wdt.c b/drivers/watchdog/bcm63xx_wdt.c
index b2b80d4ac81..a14a58d9d11 100644
--- a/drivers/watchdog/bcm63xx_wdt.c
+++ b/drivers/watchdog/bcm63xx_wdt.c
@@ -16,6 +16,7 @@
 #include <linux/errno.h>
 #include <linux/fs.h>
 #include <linux/init.h>
+#include <linux/io.h>
 #include <linux/kernel.h>
 #include <linux/miscdevice.h>
 #include <linux/module.h>
@@ -249,7 +250,8 @@ static int bcm63xx_wdt_probe(struct platform_device *pdev)
 		return -ENODEV;
 	}
 
-	bcm63xx_wdt_device.regs = ioremap_nocache(r->start, resource_size(r));
+	bcm63xx_wdt_device.regs = devm_ioremap_nocache(&pdev->dev, r->start,
+							resource_size(r));
 	if (!bcm63xx_wdt_device.regs) {
 		dev_err(&pdev->dev, "failed to remap I/O resources\n");
 		return -ENXIO;
@@ -258,7 +260,7 @@ static int bcm63xx_wdt_probe(struct platform_device *pdev)
 	ret = bcm63xx_timer_register(TIMER_WDT_ID, bcm63xx_wdt_isr, NULL);
 	if (ret < 0) {
 		dev_err(&pdev->dev, "failed to register wdt timer isr\n");
-		goto unmap;
+		return ret;
 	}
 
 	if (bcm63xx_wdt_settimeout(wdt_time)) {
@@ -281,8 +283,6 @@ static int bcm63xx_wdt_probe(struct platform_device *pdev)
 
 unregister_timer:
 	bcm63xx_timer_unregister(TIMER_WDT_ID);
-unmap:
-	iounmap(bcm63xx_wdt_device.regs);
 	return ret;
 }
 
@@ -293,7 +293,6 @@ static int bcm63xx_wdt_remove(struct platform_device *pdev)
 
 	misc_deregister(&bcm63xx_wdt_miscdev);
 	bcm63xx_timer_unregister(TIMER_WDT_ID);
-	iounmap(bcm63xx_wdt_device.regs);
 	return 0;
 }
 
diff --git a/drivers/watchdog/booke_wdt.c b/drivers/watchdog/booke_wdt.c
index a8dbceb3291..f1b8d555080 100644
--- a/drivers/watchdog/booke_wdt.c
+++ b/drivers/watchdog/booke_wdt.c
@@ -138,6 +138,14 @@ static void __booke_wdt_enable(void *data)
 	val &= ~WDTP_MASK;
 	val |= (TCR_WIE|TCR_WRC(WRC_CHIP)|WDTP(booke_wdt_period));
 
+#ifdef CONFIG_PPC_BOOK3E_64
+	/*
+	 * Crit ints are currently broken on PPC64 Book-E, so
+	 * just disable them for now.
+	 */
+	val &= ~TCR_WIE;
+#endif
+
 	mtspr(SPRN_TCR, val);
 }
 
diff --git a/drivers/watchdog/cpwd.c b/drivers/watchdog/cpwd.c
index 70387582843..213225edd05 100644
--- a/drivers/watchdog/cpwd.c
+++ b/drivers/watchdog/cpwd.c
@@ -621,7 +621,7 @@ static int cpwd_probe(struct platform_device *op)
 			WD_BADMODEL);
 	}
 
-	dev_set_drvdata(&op->dev, p);
+	platform_set_drvdata(op, p);
 	cpwd_device = p;
 	err = 0;
 
@@ -642,7 +642,7 @@ out_free:
 
 static int cpwd_remove(struct platform_device *op)
 {
-	struct cpwd *p = dev_get_drvdata(&op->dev);
+	struct cpwd *p = platform_get_drvdata(op);
 	int i;
 
 	for (i = 0; i < WD_NUMDEVS; i++) {
diff --git a/drivers/watchdog/da9052_wdt.c b/drivers/watchdog/da9052_wdt.c
index 367445009c6..f09c54e9686 100644
--- a/drivers/watchdog/da9052_wdt.c
+++ b/drivers/watchdog/da9052_wdt.c
@@ -215,14 +215,14 @@ static int da9052_wdt_probe(struct platform_device *pdev)
 		goto err;
 	}
 
-	dev_set_drvdata(&pdev->dev, driver_data);
+	platform_set_drvdata(pdev, driver_data);
 err:
 	return ret;
 }
 
 static int da9052_wdt_remove(struct platform_device *pdev)
 {
-	struct da9052_wdt_data *driver_data = dev_get_drvdata(&pdev->dev);
+	struct da9052_wdt_data *driver_data = platform_get_drvdata(pdev);
 
 	watchdog_unregister_device(&driver_data->wdt);
 	kref_put(&driver_data->kref, da9052_wdt_release_resources);
diff --git a/drivers/watchdog/da9055_wdt.c b/drivers/watchdog/da9055_wdt.c
index f5ad10546fc..575f37a965a 100644
--- a/drivers/watchdog/da9055_wdt.c
+++ b/drivers/watchdog/da9055_wdt.c
@@ -174,7 +174,7 @@ static int da9055_wdt_probe(struct platform_device *pdev)
 		goto err;
 	}
 
-	dev_set_drvdata(&pdev->dev, driver_data);
+	platform_set_drvdata(pdev, driver_data);
 
 	ret = watchdog_register_device(&driver_data->wdt);
 	if (ret != 0)
@@ -187,7 +187,7 @@ err:
 
 static int da9055_wdt_remove(struct platform_device *pdev)
 {
-	struct da9055_wdt_data *driver_data = dev_get_drvdata(&pdev->dev);
+	struct da9055_wdt_data *driver_data = platform_get_drvdata(pdev);
 
 	watchdog_unregister_device(&driver_data->wdt);
 	kref_put(&driver_data->kref, da9055_wdt_release_resources);
diff --git a/drivers/watchdog/dw_wdt.c b/drivers/watchdog/dw_wdt.c
index 20376698938..e621098bf66 100644
--- a/drivers/watchdog/dw_wdt.c
+++ b/drivers/watchdog/dw_wdt.c
@@ -154,8 +154,8 @@ static int dw_wdt_open(struct inode *inode, struct file *filp)
 	return nonseekable_open(inode, filp);
 }
 
-ssize_t dw_wdt_write(struct file *filp, const char __user *buf, size_t len,
-		     loff_t *offset)
+static ssize_t dw_wdt_write(struct file *filp, const char __user *buf,
+			    size_t len, loff_t *offset)
 {
 	if (!len)
 		return 0;
@@ -305,13 +305,13 @@ static int dw_wdt_drv_probe(struct platform_device *pdev)
 	if (IS_ERR(dw_wdt.regs))
 		return PTR_ERR(dw_wdt.regs);
 
-	dw_wdt.clk = clk_get(&pdev->dev, NULL);
+	dw_wdt.clk = devm_clk_get(&pdev->dev, NULL);
 	if (IS_ERR(dw_wdt.clk))
 		return PTR_ERR(dw_wdt.clk);
 
 	ret = clk_enable(dw_wdt.clk);
 	if (ret)
-		goto out_put_clk;
+		return ret;
 
 	spin_lock_init(&dw_wdt.lock);
 
@@ -327,8 +327,6 @@ static int dw_wdt_drv_probe(struct platform_device *pdev)
 
 out_disable_clk:
 	clk_disable(dw_wdt.clk);
-out_put_clk:
-	clk_put(dw_wdt.clk);
 
 	return ret;
 }
@@ -338,7 +336,6 @@ static int dw_wdt_drv_remove(struct platform_device *pdev)
 	misc_deregister(&dw_wdt_miscdev);
 
 	clk_disable(dw_wdt.clk);
-	clk_put(dw_wdt.clk);
 
 	return 0;
 }
diff --git a/drivers/watchdog/hpwdt.c b/drivers/watchdog/hpwdt.c
index 11796b9b864..de7e4f49722 100644
--- a/drivers/watchdog/hpwdt.c
+++ b/drivers/watchdog/hpwdt.c
@@ -39,7 +39,7 @@
 #endif /* CONFIG_HPWDT_NMI_DECODING */
 #include <asm/nmi.h>
 
-#define HPWDT_VERSION			"1.3.1"
+#define HPWDT_VERSION			"1.3.2"
 #define SECS_TO_TICKS(secs)		((secs) * 1000 / 128)
 #define TICKS_TO_SECS(ticks)		((ticks) * 128 / 1000)
 #define HPWDT_MAX_TIMER			TICKS_TO_SECS(65535)
@@ -148,6 +148,7 @@ struct cmn_registers {
 static unsigned int hpwdt_nmi_decoding;
 static unsigned int allow_kdump = 1;
 static unsigned int is_icru;
+static unsigned int is_uefi;
 static DEFINE_SPINLOCK(rom_lock);
 static void *cru_rom_addr;
 static struct cmn_registers cmn_regs;
@@ -484,7 +485,7 @@ static int hpwdt_pretimeout(unsigned int ulReason, struct pt_regs *regs)
 		goto out;
 
 	spin_lock_irqsave(&rom_lock, rom_pl);
-	if (!die_nmi_called && !is_icru)
+	if (!die_nmi_called && !is_icru && !is_uefi)
 		asminline_call(&cmn_regs, cru_rom_addr);
 	die_nmi_called = 1;
 	spin_unlock_irqrestore(&rom_lock, rom_pl);
@@ -492,7 +493,7 @@ static int hpwdt_pretimeout(unsigned int ulReason, struct pt_regs *regs)
 	if (allow_kdump)
 		hpwdt_stop();
 
-	if (!is_icru) {
+	if (!is_icru && !is_uefi) {
 		if (cmn_regs.u1.ral == 0) {
 			panic("An NMI occurred, "
 				"but unable to determine source.\n");
@@ -679,6 +680,8 @@ static void dmi_find_icru(const struct dmi_header *dm, void *dummy)
 		smbios_proliant_ptr = (struct smbios_proliant_info *) dm;
 		if (smbios_proliant_ptr->misc_features & 0x01)
 			is_icru = 1;
+		if (smbios_proliant_ptr->misc_features & 0x408)
+			is_uefi = 1;
 	}
 }
 
@@ -697,7 +700,7 @@ static int hpwdt_init_nmi_decoding(struct pci_dev *dev)
 	 * the old cru detect code.
 	 */
 	dmi_walk(dmi_find_icru, NULL);
-	if (!is_icru) {
+	if (!is_icru && !is_uefi) {
 
 		/*
 		* We need to map the ROM to get the CRU service.
diff --git a/drivers/watchdog/imx2_wdt.c b/drivers/watchdog/imx2_wdt.c
index 62946c2cb4f..693ac3f4de5 100644
--- a/drivers/watchdog/imx2_wdt.c
+++ b/drivers/watchdog/imx2_wdt.c
@@ -261,7 +261,7 @@ static int __init imx2_wdt_probe(struct platform_device *pdev)
 	if (IS_ERR(imx2_wdt.base))
 		return PTR_ERR(imx2_wdt.base);
 
-	imx2_wdt.clk = clk_get(&pdev->dev, NULL);
+	imx2_wdt.clk = devm_clk_get(&pdev->dev, NULL);
 	if (IS_ERR(imx2_wdt.clk)) {
 		dev_err(&pdev->dev, "can't get Watchdog clock\n");
 		return PTR_ERR(imx2_wdt.clk);
@@ -286,7 +286,6 @@ static int __init imx2_wdt_probe(struct platform_device *pdev)
 
 fail:
 	imx2_wdt_miscdev.parent = NULL;
-	clk_put(imx2_wdt.clk);
 	return ret;
 }
 
@@ -299,8 +298,7 @@ static int __exit imx2_wdt_remove(struct platform_device *pdev)
 
 		dev_crit(imx2_wdt_miscdev.parent,
 			"Device removed: Expect reboot!\n");
-	} else
-		clk_put(imx2_wdt.clk);
+	}
 
 	imx2_wdt_miscdev.parent = NULL;
 	return 0;
diff --git a/drivers/watchdog/jz4740_wdt.c b/drivers/watchdog/jz4740_wdt.c
index 1cb25f69a96..d1afdf684c1 100644
--- a/drivers/watchdog/jz4740_wdt.c
+++ b/drivers/watchdog/jz4740_wdt.c
@@ -177,7 +177,7 @@ static int jz4740_wdt_probe(struct platform_device *pdev)
 		goto err_out;
 	}
 
-	drvdata->rtc_clk = clk_get(NULL, "rtc");
+	drvdata->rtc_clk = clk_get(&pdev->dev, "rtc");
 	if (IS_ERR(drvdata->rtc_clk)) {
 		dev_err(&pdev->dev, "cannot find RTC clock\n");
 		ret = PTR_ERR(drvdata->rtc_clk);
diff --git a/drivers/watchdog/kempld_wdt.c b/drivers/watchdog/kempld_wdt.c
new file mode 100644
index 00000000000..491419e0772
--- /dev/null
+++ b/drivers/watchdog/kempld_wdt.c
@@ -0,0 +1,581 @@
+/*
+ * Kontron PLD watchdog driver
+ *
+ * Copyright (c) 2010-2013 Kontron Europe GmbH
+ * Author: Michael Brunner <michael.brunner@kontron.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License 2 as published
+ * by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * Note: From the PLD watchdog point of view timeout and pretimeout are
+ *       defined differently than in the kernel.
+ *       First the pretimeout stage runs out before the timeout stage gets
+ *       active.
+ *
+ * Kernel/API:                     P-----| pretimeout
+ *               |-----------------------T timeout
+ * Watchdog:     |-----------------P       pretimeout_stage
+ *                                 |-----T timeout_stage
+ */
+
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/miscdevice.h>
+#include <linux/uaccess.h>
+#include <linux/watchdog.h>
+#include <linux/platform_device.h>
+#include <linux/mfd/kempld.h>
+
+#define KEMPLD_WDT_STAGE_TIMEOUT(x)	(0x1b + (x) * 4)
+#define KEMPLD_WDT_STAGE_CFG(x)		(0x18 + (x))
+#define STAGE_CFG_GET_PRESCALER(x)	(((x) & 0x30) >> 4)
+#define STAGE_CFG_SET_PRESCALER(x)	(((x) & 0x30) << 4)
+#define STAGE_CFG_PRESCALER_MASK	0x30
+#define STAGE_CFG_ACTION_MASK		0x7
+#define STAGE_CFG_ASSERT		(1 << 3)
+
+#define KEMPLD_WDT_MAX_STAGES		2
+#define KEMPLD_WDT_KICK			0x16
+#define KEMPLD_WDT_CFG			0x17
+#define KEMPLD_WDT_CFG_ENABLE		0x10
+#define KEMPLD_WDT_CFG_ENABLE_LOCK	0x8
+#define KEMPLD_WDT_CFG_GLOBAL_LOCK	0x80
+
+enum {
+	ACTION_NONE = 0,
+	ACTION_RESET,
+	ACTION_NMI,
+	ACTION_SMI,
+	ACTION_SCI,
+	ACTION_DELAY,
+};
+
+enum {
+	STAGE_TIMEOUT = 0,
+	STAGE_PRETIMEOUT,
+};
+
+enum {
+	PRESCALER_21 = 0,
+	PRESCALER_17,
+	PRESCALER_12,
+};
+
+const u32 kempld_prescaler[] = {
+	[PRESCALER_21] = (1 << 21) - 1,
+	[PRESCALER_17] = (1 << 17) - 1,
+	[PRESCALER_12] = (1 << 12) - 1,
+	0,
+};
+
+struct kempld_wdt_stage {
+	unsigned int	id;
+	u32		mask;
+};
+
+struct kempld_wdt_data {
+	struct kempld_device_data	*pld;
+	struct watchdog_device		wdd;
+	unsigned int			pretimeout;
+	struct kempld_wdt_stage		stage[KEMPLD_WDT_MAX_STAGES];
+#ifdef CONFIG_PM
+	u8				pm_status_store;
+#endif
+};
+
+#define DEFAULT_TIMEOUT		30 /* seconds */
+#define DEFAULT_PRETIMEOUT	0
+
+static unsigned int timeout = DEFAULT_TIMEOUT;
+module_param(timeout, uint, 0);
+MODULE_PARM_DESC(timeout,
+	"Watchdog timeout in seconds. (>=0, default="
+	__MODULE_STRING(DEFAULT_TIMEOUT) ")");
+
+static unsigned int pretimeout = DEFAULT_PRETIMEOUT;
+module_param(pretimeout, uint, 0);
+MODULE_PARM_DESC(pretimeout,
+	"Watchdog pretimeout in seconds. (>=0, default="
+	__MODULE_STRING(DEFAULT_PRETIMEOUT) ")");
+
+static bool nowayout = WATCHDOG_NOWAYOUT;
+module_param(nowayout, bool, 0);
+MODULE_PARM_DESC(nowayout,
+	"Watchdog cannot be stopped once started (default="
+	__MODULE_STRING(WATCHDOG_NOWAYOUT) ")");
+
+static int kempld_wdt_set_stage_action(struct kempld_wdt_data *wdt_data,
+					struct kempld_wdt_stage *stage,
+					u8 action)
+{
+	struct kempld_device_data *pld = wdt_data->pld;
+	u8 stage_cfg;
+
+	if (!stage || !stage->mask)
+		return -EINVAL;
+
+	kempld_get_mutex(pld);