Merge git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6

* git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6: (262 commits)
  sh: mach-ecovec24: Add user debug switch support
  sh: Kill off unused se_skipped in alignment trap notification code.
  sh: Wire up HAVE_SYSCALL_TRACEPOINTS.
  video: sh_mobile_lcdcfb: use both register sets for display panning
  video: sh_mobile_lcdcfb: implement display panning
  sh: Fix up sh7705 flush_dcache_page() build.
  sh: kfr2r09: document the PLL/FLL <-> RF relationship.
  sh: mach-ecovec24: need asm/clock.h.
  sh: mach-ecovec24: deassert usb irq on boot.
  sh: Add KEYSC support for EcoVec24
  sh: add kycr2_delay for sh_keysc
  sh: cpufreq: Include CPU id in info messages.
  sh: multi-evt support for SH-X3 proto CPU.
  sh: clkfwk: remove bogus set_bus_parent() from SH7709.
  sh: Fix the indication point of the liquid crystal of AP-325RXA(AP3300)
  sh: Add EcoVec24 romImage defconfig
  sh: USB disable process is needed if romImage boot for EcoVec24
  sh: EcoVec24: add HIZA setting for LED
  sh: EcoVec24: write MAC address in boot
  sh: Add romImage support for EcoVec24
  ...

21 files changed, 2776 insertions, 932 deletions

diff --git a/drivers/i2c/busses/i2c-sh_mobile.c b/drivers/i2c/busses/i2c-sh_mobile.c
index 820487d0d5c..86a9d4e8147 100644
--- a/drivers/i2c/busses/i2c-sh_mobile.c
+++ b/drivers/i2c/busses/i2c-sh_mobile.c
@@ -28,6 +28,7 @@
 #include <linux/interrupt.h>
 #include <linux/i2c.h>
 #include <linux/err.h>
+#include <linux/pm_runtime.h>
 #include <linux/clk.h>
 #include <linux/io.h>
 
@@ -165,7 +166,8 @@ static void activate_ch(struct sh_mobile_i2c_data *pd)
 	u_int32_t denom;
 	u_int32_t tmp;
 
-	/* Make sure the clock is enabled */
+	/* Wake up device and enable clock */
+	pm_runtime_get_sync(pd->dev);
 	clk_enable(pd->clk);
 
 	/* Get clock rate after clock is enabled */
@@ -213,8 +215,9 @@ static void deactivate_ch(struct sh_mobile_i2c_data *pd)
 	/* Disable channel */
 	iowrite8(ioread8(ICCR(pd)) & ~ICCR_ICE, ICCR(pd));
 
-	/* Disable clock */
+	/* Disable clock and mark device as idle */
 	clk_disable(pd->clk);
+	pm_runtime_put_sync(pd->dev);
 }
 
 static unsigned char i2c_op(struct sh_mobile_i2c_data *pd,
@@ -572,6 +575,19 @@ static int sh_mobile_i2c_probe(struct platform_device *dev)
 		goto err_irq;
 	}
 
+	/* Enable Runtime PM for this device.
+	 *
+	 * Also tell the Runtime PM core to ignore children
+	 * for this device since it is valid for us to suspend
+	 * this I2C master driver even though the slave devices
+	 * on the I2C bus may not be suspended.
+	 *
+	 * The state of the I2C hardware bus is unaffected by
+	 * the Runtime PM state.
+	 */
+	pm_suspend_ignore_children(&dev->dev, true);
+	pm_runtime_enable(&dev->dev);
+
 	/* setup the private data */
 	adap = &pd->adap;
 	i2c_set_adapdata(adap, pd);
@@ -614,14 +630,33 @@ static int sh_mobile_i2c_remove(struct platform_device *dev)
 	iounmap(pd->reg);
 	sh_mobile_i2c_hook_irqs(dev, 0);
 	clk_put(pd->clk);
+	pm_runtime_disable(&dev->dev);
 	kfree(pd);
 	return 0;
 }
 
+static int sh_mobile_i2c_runtime_nop(struct device *dev)
+{
+	/* Runtime PM callback shared between ->runtime_suspend()
+	 * and ->runtime_resume(). Simply returns success.
+	 *
+	 * This driver re-initializes all registers after
+	 * pm_runtime_get_sync() anyway so there is no need
+	 * to save and restore registers here.
+	 */
+	return 0;
+}
+
+static struct dev_pm_ops sh_mobile_i2c_dev_pm_ops = {
+	.runtime_suspend = sh_mobile_i2c_runtime_nop,
+	.runtime_resume = sh_mobile_i2c_runtime_nop,
+};
+
 static struct platform_driver sh_mobile_i2c_driver = {
 	.driver		= {
 		.name		= "i2c-sh_mobile",
 		.owner		= THIS_MODULE,
+		.pm		= &sh_mobile_i2c_dev_pm_ops,
 	},
 	.probe		= sh_mobile_i2c_probe,
 	.remove		= sh_mobile_i2c_remove,
diff --git a/drivers/input/keyboard/sh_keysc.c b/drivers/input/keyboard/sh_keysc.c
index 0714bf2c28f..887af79b7bf 100644
--- a/drivers/input/keyboard/sh_keysc.c
+++ b/drivers/input/keyboard/sh_keysc.c
@@ -80,6 +80,9 @@ static irqreturn_t sh_keysc_isr(int irq, void *dev_id)
 		iowrite16(KYCR2_IRQ_LEVEL | (keyin_set << 8),
 			  priv->iomem_base + KYCR2_OFFS);
 
+		if (pdata->kycr2_delay)
+			udelay(pdata->kycr2_delay);
+
 		keys ^= ~0;
 		keys &= (1 << (sh_keysc_mode[pdata->mode].keyin *
 			       sh_keysc_mode[pdata->mode].keyout)) - 1;
diff --git a/drivers/media/video/sh_mobile_ceu_camera.c b/drivers/media/video/sh_mobile_ceu_camera.c
index e86878deea7..61c47b82408 100644
--- a/drivers/media/video/sh_mobile_ceu_camera.c
+++ b/drivers/media/video/sh_mobile_ceu_camera.c
@@ -30,7 +30,7 @@
 #include <linux/device.h>
 #include <linux/platform_device.h>
 #include <linux/videodev2.h>
-#include <linux/clk.h>
+#include <linux/pm_runtime.h>
 
 #include <media/v4l2-common.h>
 #include <media/v4l2-dev.h>
@@ -86,7 +86,6 @@ struct sh_mobile_ceu_dev {
 
 	unsigned int irq;
 	void __iomem *base;
-	struct clk *clk;
 	unsigned long video_limit;
 
 	/* lock used to protect videobuf */
@@ -361,7 +360,7 @@ static int sh_mobile_ceu_add_device(struct soc_camera_device *icd)
 	if (ret)
 		goto err;
 
-	clk_enable(pcdev->clk);
+	pm_runtime_get_sync(ici->dev);
 
 	ceu_write(pcdev, CAPSR, 1 << 16); /* reset */
 	while (ceu_read(pcdev, CSTSR) & 1)
@@ -395,7 +394,7 @@ static void sh_mobile_ceu_remove_device(struct soc_camera_device *icd)
 	}
 	spin_unlock_irqrestore(&pcdev->lock, flags);
 
-	clk_disable(pcdev->clk);
+	pm_runtime_put_sync(ici->dev);
 
 	icd->ops->release(icd);
 
@@ -798,7 +797,6 @@ static int sh_mobile_ceu_probe(struct platform_device *pdev)
 	struct sh_mobile_ceu_dev *pcdev;
 	struct resource *res;
 	void __iomem *base;
-	char clk_name[8];
 	unsigned int irq;
 	int err = 0;
 
@@ -862,13 +860,9 @@ static int sh_mobile_ceu_probe(struct platform_device *pdev)
 		goto exit_release_mem;
 	}
 
-	snprintf(clk_name, sizeof(clk_name), "ceu%d", pdev->id);
-	pcdev->clk = clk_get(&pdev->dev, clk_name);
-	if (IS_ERR(pcdev->clk)) {
-		dev_err(&pdev->dev, "cannot get clock \"%s\"\n", clk_name);
-		err = PTR_ERR(pcdev->clk);
-		goto exit_free_irq;
-	}
+	pm_suspend_ignore_children(&pdev->dev, true);
+	pm_runtime_enable(&pdev->dev);
+	pm_runtime_resume(&pdev->dev);
 
 	pcdev->ici.priv = pcdev;
 	pcdev->ici.dev = &pdev->dev;
@@ -878,12 +872,10 @@ static int sh_mobile_ceu_probe(struct platform_device *pdev)
 
 	err = soc_camera_host_register(&pcdev->ici);
 	if (err)
-		goto exit_free_clk;
+		goto exit_free_irq;
 
 	return 0;
 
-exit_free_clk:
-	clk_put(pcdev->clk);
 exit_free_irq:
 	free_irq(pcdev->irq, pcdev);
 exit_release_mem:
@@ -904,7 +896,6 @@ static int sh_mobile_ceu_remove(struct platform_device *pdev)
 					struct sh_mobile_ceu_dev, ici);
 
 	soc_camera_host_unregister(soc_host);
-	clk_put(pcdev->clk);
 	free_irq(pcdev->irq, pcdev);
 	if (platform_get_resource(pdev, IORESOURCE_MEM, 1))
 		dma_release_declared_memory(&pdev->dev);
@@ -913,9 +904,27 @@ static int sh_mobile_ceu_remove(struct platform_device *pdev)
 	return 0;
 }
 
+static int sh_mobile_ceu_runtime_nop(struct device *dev)
+{
+	/* Runtime PM callback shared between ->runtime_suspend()
+	 * and ->runtime_resume(). Simply returns success.
+	 *
+	 * This driver re-initializes all registers after
+	 * pm_runtime_get_sync() anyway so there is no need
+	 * to save and restore registers here.
+	 */
+	return 0;
+}
+
+static struct dev_pm_ops sh_mobile_ceu_dev_pm_ops = {
+	.runtime_suspend = sh_mobile_ceu_runtime_nop,
+	.runtime_resume = sh_mobile_ceu_runtime_nop,
+};
+
 static struct platform_driver sh_mobile_ceu_driver = {
 	.driver 	= {
 		.name	= "sh_mobile_ceu",
+		.pm	= &sh_mobile_ceu_dev_pm_ops,
 	},
 	.probe		= sh_mobile_ceu_probe,
 	.remove		= sh_mobile_ceu_remove,
diff --git a/drivers/rtc/rtc-ds1302.c b/drivers/rtc/rtc-ds1302.c
index 18455662077..d490628b64d 100644
--- a/drivers/rtc/rtc-ds1302.c
+++ b/drivers/rtc/rtc-ds1302.c
@@ -1,26 +1,25 @@
 /*
  * Dallas DS1302 RTC Support
  *
- *  Copyright (C) 2002  David McCullough
- *  Copyright (C) 2003 - 2007  Paul Mundt
+ *  Copyright (C) 2002 David McCullough
+ *  Copyright (C) 2003 - 2007 Paul Mundt
  *
  * This file is subject to the terms and conditions of the GNU General Public
- * License version 2.  See the file "COPYING" in the main directory of
+ * License version 2. See the file "COPYING" in the main directory of
  * this archive for more details.
  */
+
 #include <linux/init.h>
 #include <linux/module.h>
 #include <linux/kernel.h>
 #include <linux/platform_device.h>
-#include <linux/time.h>
 #include <linux/rtc.h>
-#include <linux/spinlock.h>
 #include <linux/io.h>
 #include <linux/bcd.h>
 #include <asm/rtc.h>
 
 #define DRV_NAME	"rtc-ds1302"
-#define DRV_VERSION	"0.1.0"
+#define DRV_VERSION	"0.1.1"
 
 #define	RTC_CMD_READ	0x81		/* Read command */
 #define	RTC_CMD_WRITE	0x80		/* Write command */
@@ -47,11 +46,6 @@
 #error "Add support for your platform"
 #endif
 
-struct ds1302_rtc {
-	struct rtc_device *rtc_dev;
-	spinlock_t lock;
-};
-
 static void ds1302_sendbits(unsigned int val)
 {
 	int i;
@@ -103,10 +97,6 @@ static void ds1302_writebyte(unsigned int addr, unsigned int val)
 
 static int ds1302_rtc_read_time(struct device *dev, struct rtc_time *tm)
 {
-	struct ds1302_rtc *rtc = dev_get_drvdata(dev);
-
-	spin_lock_irq(&rtc->lock);
-
 	tm->tm_sec	= bcd2bin(ds1302_readbyte(RTC_ADDR_SEC));
 	tm->tm_min	= bcd2bin(ds1302_readbyte(RTC_ADDR_MIN));
 	tm->tm_hour	= bcd2bin(ds1302_readbyte(RTC_ADDR_HOUR));
@@ -118,26 +108,17 @@ static int ds1302_rtc_read_time(struct device *dev, struct rtc_time *tm)
 	if (tm->tm_year < 70)
 		tm->tm_year += 100;
 
-	spin_unlock_irq(&rtc->lock);
-
 	dev_dbg(dev, "%s: tm is secs=%d, mins=%d, hours=%d, "
 		"mday=%d, mon=%d, year=%d, wday=%d\n",
 		__func__,
 		tm->tm_sec, tm->tm_min, tm->tm_hour,
 		tm->tm_mday, tm->tm_mon + 1, tm->tm_year, tm->tm_wday);
 
-	if (rtc_valid_tm(tm) < 0)
-		dev_err(dev, "invalid date\n");
-
-	return 0;
+	return rtc_valid_tm(tm);
 }
 
 static int ds1302_rtc_set_time(struct device *dev, struct rtc_time *tm)
 {
-	struct ds1302_rtc *rtc = dev_get_drvdata(dev);
-
-	spin_lock_irq(&rtc->lock);
-
 	/* Stop RTC */
 	ds1302_writebyte(RTC_ADDR_SEC, ds1302_readbyte(RTC_ADDR_SEC) | 0x80);
 
@@ -152,8 +133,6 @@ static int ds1302_rtc_set_time(struct device *dev, struct rtc_time *tm)
 	/* Start RTC */
 	ds1302_writebyte(RTC_ADDR_SEC, ds1302_readbyte(RTC_ADDR_SEC) & ~0x80);
 
-	spin_unlock_irq(&rtc->lock);
-
 	return 0;
 }
 
@@ -170,9 +149,7 @@ static int ds1302_rtc_ioctl(struct device *dev, unsigned int cmd,
 		if (copy_from_user(&tcs_val, (int __user *)arg, sizeof(int)))
 			return -EFAULT;
 
-		spin_lock_irq(&rtc->lock);
 		ds1302_writebyte(RTC_ADDR_TCR, (0xa0 | tcs_val * 0xf));
-		spin_unlock_irq(&rtc->lock);
 		return 0;
 	}
 #endif
@@ -187,10 +164,9 @@ static struct rtc_class_ops ds1302_rtc_ops = {
 	.ioctl		= ds1302_rtc_ioctl,
 };
 
-static int __devinit ds1302_rtc_probe(struct platform_device *pdev)
+static int __init ds1302_rtc_probe(struct platform_device *pdev)
 {
-	struct ds1302_rtc *rtc;
-	int ret;
+	struct rtc_device *rtc;
 
 	/* Reset */
 	set_dp(get_dp() & ~(RTC_RESET | RTC_IODATA | RTC_SCLK));
@@ -200,37 +176,23 @@ static int __devinit ds1302_rtc_probe(struct platform_device *pdev)
 	if (ds1302_readbyte(RTC_ADDR_RAM0) != 0x42)
 		return -ENODEV;
 
-	rtc = kzalloc(sizeof(struct ds1302_rtc), GFP_KERNEL);
-	if (unlikely(!rtc))
-		return -ENOMEM;
-
-	spin_lock_init(&rtc->lock);
-	rtc->rtc_dev = rtc_device_register("ds1302", &pdev->dev,
+	rtc = rtc_device_register("ds1302", &pdev->dev,
 					   &ds1302_rtc_ops, THIS_MODULE);
-	if (IS_ERR(rtc->rtc_dev)) {
-		ret = PTR_ERR(rtc->rtc_dev);
-		goto out;
-	}
+	if (IS_ERR(rtc))
+		return PTR_ERR(rtc);
 
 	platform_set_drvdata(pdev, rtc);
 
 	return 0;
-out:
-	kfree(rtc);
-	return ret;
 }
 
 static int __devexit ds1302_rtc_remove(struct platform_device *pdev)
 {
-	struct ds1302_rtc *rtc = platform_get_drvdata(pdev);
-
-	if (likely(rtc->rtc_dev))
-		rtc_device_unregister(rtc->rtc_dev);
+	struct rtc_device *rtc = platform_get_drvdata(pdev);
 
+	rtc_device_unregister(rtc);
 	platform_set_drvdata(pdev, NULL);
 
-	kfree(rtc);
-
 	return 0;
 }
 
@@ -239,13 +201,12 @@ static struct platform_driver ds1302_platform_driver = {
 		.name	= DRV_NAME,
 		.owner	= THIS_MODULE,
 	},
-	.probe		= ds1302_rtc_probe,
-	.remove		= __devexit_p(ds1302_rtc_remove),
+	.remove		= __exit_p(ds1302_rtc_remove),
 };
 
 static int __init ds1302_rtc_init(void)
 {
-	return platform_driver_register(&ds1302_platform_driver);
+	return platform_driver_probe(&ds1302_platform_driver, ds1302_rtc_probe);
 }
 
 static void __exit ds1302_rtc_exit(void)
diff --git a/drivers/rtc/rtc-sh.c b/drivers/rtc/rtc-sh.c
index d7310adb715..e6ed5404bca 100644
--- a/drivers/rtc/rtc-sh.c
+++ b/drivers/rtc/rtc-sh.c
@@ -29,7 +29,7 @@
 #include <asm/rtc.h>
 
 #define DRV_NAME	"sh-rtc"
-#define DRV_VERSION	"0.2.2"
+#define DRV_VERSION	"0.2.3"
 
 #define RTC_REG(r)	((r) * rtc_reg_size)
 
@@ -215,7 +215,7 @@ static irqreturn_t sh_rtc_shared(int irq, void *dev_id)
 	return IRQ_RETVAL(ret);
 }
 
-static inline void sh_rtc_setpie(struct device *dev, unsigned int enable)
+static int sh_rtc_irq_set_state(struct device *dev, int enable)
 {
 	struct sh_rtc *rtc = dev_get_drvdata(dev);
 	unsigned int tmp;
@@ -225,17 +225,22 @@ static inline void sh_rtc_setpie(struct device *dev, unsigned int enable)
 	tmp = readb(rtc->regbase + RCR2);
 
 	if (enable) {
+		rtc->periodic_freq |= PF_KOU;
 		tmp &= ~RCR2_PEF;	/* Clear PES bit */
 		tmp |= (rtc->periodic_freq & ~PF_HP);	/* Set PES2-0 */
-	} else
+	} else {
+		rtc->periodic_freq &= ~PF_KOU;
 		tmp &= ~(RCR2_PESMASK | RCR2_PEF);
+	}
 
 	writeb(tmp, rtc->regbase + RCR2);
 
 	spin_unlock_irq(&rtc->lock);
+
+	return 0;
 }
 
-static inline int sh_rtc_setfreq(struct device *dev, unsigned int freq)
+static int sh_rtc_irq_set_freq(struct device *dev, int freq)
 {
 	struct sh_rtc *rtc = dev_get_drvdata(dev);
 	int tmp, ret = 0;
@@ -278,10 +283,8 @@ static inline int sh_rtc_setfreq(struct device *dev, unsigned int freq)
 		ret = -ENOTSUPP;
 	}
 
-	if (ret == 0) {
+	if (ret == 0)
 		rtc->periodic_freq |= tmp;
-		rtc->rtc_dev->irq_freq = freq;
-	}
 
 	spin_unlock_irq(&rtc->lock);
 	return ret;
@@ -346,10 +349,6 @@ static int sh_rtc_ioctl(struct device *dev, unsigned int cmd, unsigned long arg)
 	unsigned int ret = 0;
 
 	switch (cmd) {
-	case RTC_PIE_OFF:
-	case RTC_PIE_ON:
-		sh_rtc_setpie(dev, cmd == RTC_PIE_ON);
-		break;
 	case RTC_AIE_OFF:
 	case RTC_AIE_ON:
 		sh_rtc_setaie(dev, cmd == RTC_AIE_ON);
@@ -362,13 +361,6 @@ static int sh_rtc_ioctl(struct device *dev, unsigned int cmd, unsigned long arg)
 		rtc->periodic_freq |= PF_OXS;
 		sh_rtc_setcie(dev, 1);
 		break;
-	case RTC_IRQP_READ:
-		ret = put_user(rtc->rtc_dev->irq_freq,
-			       (unsigned long __user *)arg);
-		break;
-	case RTC_IRQP_SET:
-		ret = sh_rtc_setfreq(dev, arg);
-		break;
 	default:
 		ret = -ENOIOCTLCMD;
 	}
@@ -602,28 +594,6 @@ static int sh_rtc_set_alarm(struct device *dev, struct rtc_wkalrm *wkalrm)
 	return 0;
 }
 
-static int sh_rtc_irq_set_state(struct device *dev, int enabled)
-{
-	struct platform_device *pdev = to_platform_device(dev);
-	struct sh_rtc *rtc = platform_get_drvdata(pdev);
-
-	if (enabled) {
-		rtc->periodic_freq |= PF_KOU;
-		return sh_rtc_ioctl(dev, RTC_PIE_ON, 0);
-	} else {
-		rtc->periodic_freq &= ~PF_KOU;
-		return sh_rtc_ioctl(dev, RTC_PIE_OFF, 0);
-	}
-}
-
-static int sh_rtc_irq_set_freq(struct device *dev, int freq)
-{
-	if (!is_power_of_2(freq))
-		return -EINVAL;
-
-	return sh_rtc_ioctl(dev, RTC_IRQP_SET, freq);
-}
-
 static struct rtc_class_ops sh_rtc_ops = {
 	.ioctl		= sh_rtc_ioctl,
 	.read_time	= sh_rtc_read_time,
@@ -635,7 +605,7 @@ static struct rtc_class_ops sh_rtc_ops = {
 	.proc		= sh_rtc_proc,
 };
 
-static int __devinit sh_rtc_probe(struct platform_device *pdev)
+static int __init sh_rtc_probe(struct platform_device *pdev)
 {
 	struct sh_rtc *rtc;
 	struct resource *res;
@@ -702,13 +672,6 @@ static int __devinit sh_rtc_probe(struct platform_device *pdev)
 
 	clk_enable(rtc->clk);
 
-	rtc->rtc_dev = rtc_device_register("sh", &pdev->dev,
-					   &sh_rtc_ops, THIS_MODULE);
-	if (IS_ERR(rtc->rtc_dev)) {
-		ret = PTR_ERR(rtc->rtc_dev);
-		goto err_unmap;
-	}
-
 	rtc->capabilities = RTC_DEF_CAPABILITIES;
 	if (pdev->dev.platform_data) {
 		struct sh_rtc_platform_info *pinfo = pdev->dev.platform_data;
@@ -720,10 +683,6 @@ static int __devinit sh_rtc_probe(struct platform_device *pdev)
 		rtc->capabilities |= pinfo->capabilities;
 	}
 
-	rtc->rtc_dev->max_user_freq = 256;
-
-	platform_set_drvdata(pdev, rtc);
-
 	if (rtc->carry_irq <= 0) {
 		/* register shared periodic/carry/alarm irq */
 		ret = request_irq(rtc->periodic_irq, sh_rtc_shared,
@@ -767,13 +726,26 @@ static int __devinit sh_rtc_probe(struct platform_device *pdev)
 		}
 	}
 
+	platform_set_drvdata(pdev, rtc);
+
 	/* everything disabled by default */
-	rtc->periodic_freq = 0;
-	rtc->rtc_dev->irq_freq = 0;
-	sh_rtc_setpie(&pdev->dev, 0);
+	sh_rtc_irq_set_freq(&pdev->dev, 0);
+	sh_rtc_irq_set_state(&pdev->dev, 0);
 	sh_rtc_setaie(&pdev->dev, 0);
 	sh_rtc_setcie(&pdev->dev, 0);
 
+	rtc->rtc_dev = rtc_device_register("sh", &pdev->dev,
+					   &sh_rtc_ops, THIS_MODULE);
+	if (IS_ERR(rtc->rtc_dev)) {
+		ret = PTR_ERR(rtc->rtc_dev);
+		free_irq(rtc->periodic_irq, rtc);
+		free_irq(rtc->carry_irq, rtc);
+		free_irq(rtc->alarm_irq, rtc);
+		goto err_unmap;
+	}
+
+	rtc->rtc_dev->max_user_freq = 256;
+
 	/* reset rtc to epoch 0 if time is invalid */
 	if (rtc_read_time(rtc->rtc_dev, &r) < 0) {
 		rtc_time_to_tm(0, &r);
@@ -795,14 +767,13 @@ err_badres:
 	return ret;
 }
 
-static int __devexit sh_rtc_remove(struct platform_device *pdev)
+static int __exit sh_rtc_remove(struct platform_device *pdev)
 {
 	struct sh_rtc *rtc = platform_get_drvdata(pdev);
 
-	if (likely(rtc->rtc_dev))
-		rtc_device_unregister(rtc->rtc_dev);
+	rtc_device_unregister(rtc->rtc_dev);
+	sh_rtc_irq_set_state(&pdev->dev, 0);
 
-	sh_rtc_setpie(&pdev->dev, 0);
 	sh_rtc_setaie(&pdev->dev, 0);
 	sh_rtc_setcie(&pdev->dev, 0);
 
@@ -813,9 +784,8 @@ static int __devexit sh_rtc_remove(struct platform_device *pdev)
 		free_irq(rtc->alarm_irq, rtc);
 	}
 
-	release_resource(rtc->res);
-
 	iounmap(rtc->regbase);
+	release_resource(rtc->res);
 
 	clk_disable(rtc->clk);
 	clk_put(rtc->clk);
@@ -867,13 +837,12 @@ static struct platform_driver sh_rtc_platform_driver = {
 		.owner	= THIS_MODULE,
 		.pm	= &sh_rtc_dev_pm_ops,
 	},
-	.probe		= sh_rtc_probe,
-	.remove		= __devexit_p(sh_rtc_remove),
+	.remove		= __exit_p(sh_rtc_remove),
 };
 
 static int __init sh_rtc_init(void)
 {
-	return platform_driver_register(&sh_rtc_platform_driver);
+	return platform_driver_probe(&sh_rtc_platform_driver, sh_rtc_probe);
 }
 
 static void __exit sh_rtc_exit(void)
diff --git a/drivers/serial/sh-sci.c b/drivers/serial/sh-sci.c
index 8e2feb56334..32dc2fc50e6 100644
--- a/drivers/serial/sh-sci.c
+++ b/drivers/serial/sh-sci.c
@@ -272,7 +272,8 @@ static inline void sci_init_pins(struct uart_port *port, unsigned int cflag)
 		__raw_writew(data, PSCR);
 	}
 }
-#elif defined(CONFIG_CPU_SUBTYPE_SH7763) || \
+#elif defined(CONFIG_CPU_SUBTYPE_SH7757) || \
+      defined(CONFIG_CPU_SUBTYPE_SH7763) || \
       defined(CONFIG_CPU_SUBTYPE_SH7780) || \
       defined(CONFIG_CPU_SUBTYPE_SH7785) || \
       defined(CONFIG_CPU_SUBTYPE_SH7786) || \
@@ -662,10 +663,11 @@ static irqreturn_t sci_rx_interrupt(int irq, void *port)
 static irqreturn_t sci_tx_interrupt(int irq, void *ptr)
 {
 	struct uart_port *port = ptr;
+	unsigned long flags;
 
-	spin_lock_irq(&port->lock);
+	spin_lock_irqsave(&port->lock, flags);
 	sci_transmit_chars(port);
-	spin_unlock_irq(&port->lock);
+	spin_unlock_irqrestore(&port->lock, flags);
 
 	return IRQ_HANDLED;
 }
diff --git a/drivers/serial/sh-sci.h b/drivers/serial/sh-sci.h
index 38072c15b84..3e2fcf93b42 100644
--- a/drivers/serial/sh-sci.h
+++ b/drivers/serial/sh-sci.h
@@ -112,6 +112,13 @@
 #elif defined(CONFIG_H8S2678)
 # define SCSCR_INIT(port)          0x30 /* TIE=0,RIE=0,TE=1,RE=1 */
 # define H8300_SCI_DR(ch) *(volatile char *)(P1DR + h8300_sci_pins[ch].port)
+#elif defined(CONFIG_CPU_SUBTYPE_SH7757)
+# define SCSPTR0 0xfe4b0020
+# define SCSPTR1 0xfe4b0020
+# define SCSPTR2 0xfe4b0020
+# define SCIF_ORER 0x0001
+# define SCSCR_INIT(port)	0x38
+# define SCIF_ONLY
 #elif defined(CONFIG_CPU_SUBTYPE_SH7763)
 # define SCSPTR0 0xffe00024 /* 16 bit SCIF */
 # define SCSPTR1 0xffe08024 /* 16 bit SCIF */
@@ -562,6 +569,16 @@ static inline int sci_rxd_in(struct uart_port *port)
 		return ctrl_inw(SCSPTR2)&0x0001 ? 1 : 0; /* SCIF */
 	return 1;
 }
+#elif defined(CONFIG_CPU_SUBTYPE_SH7757)
+static inline int sci_rxd_in(struct uart_port *port)
+{
+	if (port->mapbase == 0xfe4b0000)
+		return ctrl_inw(SCSPTR0) & 0x0001 ? 1 : 0;
+	if (port->mapbase == 0xfe4c0000)
+		return ctrl_inw(SCSPTR1) & 0x0001 ? 1 : 0;
+	if (port->mapbase == 0xfe4d0000)
+		return ctrl_inw(SCSPTR2) & 0x0001 ? 1 : 0;
+}
 #elif defined(CONFIG_CPU_SUBTYPE_SH7760)
 static inline int sci_rxd_in(struct uart_port *port)
 {
diff --git a/drivers/sh/intc.c b/drivers/sh/intc.c
index 3dd231a643b..559b5fe9dc0 100644
--- a/drivers/sh/intc.c
+++ b/drivers/sh/intc.c
@@ -77,7 +77,7 @@ static unsigned long ack_handle[NR_IRQS];
 static inline struct intc_desc_int *get_intc_desc(unsigned int irq)
 {
 	struct irq_chip *chip = get_irq_chip(irq);
-	return (void *)((char *)chip - offsetof(struct intc_desc_int, chip));
+	return container_of(chip, struct intc_desc_int, chip);
 }
 
 static inline unsigned int set_field(unsigned int value,
@@ -95,16 +95,19 @@ static inline unsigned int set_field(unsigned int value,
 static void write_8(unsigned long addr, unsigned long h, unsigned long data)
 {
 	__raw_writeb(set_field(0, data, h), addr);
+	(void)__raw_readb(addr);	/* Defeat write posting */
 }
 
 static void write_16(unsigned long addr, unsigned long h, unsigned long data)
 {
 	__raw_writew(set_field(0, data, h), addr);
+	(void)__raw_readw(addr);	/* Defeat write posting */
 }
 
 static void write_32(unsigned long addr, unsigned long h, unsigned long data)
 {
 	__raw_writel(set_field(0, data, h), addr);
+	(void)__raw_readl(addr);	/* Defeat write posting */
 }
 
 static void modify_8(unsigned long addr, unsigned long h, unsigned long data)
@@ -112,6 +115,7 @@ static void modify_8(unsigned long addr, unsigned long h, unsigned long data)
 	unsigned long flags;
 	local_irq_save(flags);
 	__raw_writeb(set_field(__raw_readb(addr), data, h), addr);
+	(void)__raw_readb(addr);	/* Defeat write posting */
 	local_irq_restore(flags);
 }
 
@@ -120,6 +124,7 @@ static void modify_16(unsigned long addr, unsigned long h, unsigned long data)
 	unsigned long flags;
 	local_irq_save(flags);
 	__raw_writew(set_field(__raw_readw(addr), data, h), addr);
+	(void)__raw_readw(addr);	/* Defeat write posting */
 	local_irq_restore(flags);
 }
 
@@ -128,6 +133,7 @@ static void modify_32(unsigned long addr, unsigned long h, unsigned long data)
 	unsigned long flags;
 	local_irq_save(flags);
 	__raw_writel(set_field(__raw_readl(addr), data, h), addr);
+	(void)__raw_readl(addr);	/* Defeat write posting */
 	local_irq_restore(flags);
 }
 
@@ -657,16 +663,9 @@ static unsigned int __init save_reg(struct intc_desc_int *d,
 	return 0;
 }
 
-static unsigned char *intc_evt2irq_table;
-
-unsigned int intc_evt2irq(unsigned int vector)
+static void intc_redirect_irq(unsigned int irq, struct irq_desc *desc)
 {
-	unsigned int irq = evt2irq(vector);
-
-	if (intc_evt2irq_table && intc_evt2irq_table[irq])
-		irq = intc_evt2irq_table[irq];
-
-	return irq;
+	generic_handle_irq((unsigned int)get_irq_data(irq));
 }
 
 void __init register_intc_controller(struct intc_desc *desc)
@@ -739,50 +738,48 @@ void __init register_intc_controller(struct intc_desc *desc)
 
 	BUG_ON(k > 256); /* _INTC_ADDR_E() and _INTC_ADDR_D() are 8 bits */
 
-	/* keep the first vector only if same enum is used multiple times */
+	/* register the vectors one by one */
 	for (i = 0; i < desc->nr_vectors; i++) {
 		struct intc_vect *vect = desc->vectors + i;
-		int first_irq = evt2irq(vect->vect);
+		unsigned int irq = evt2irq(vect->vect);
+		struct irq_desc *irq_desc;
 
 		if (!vect->enum_id)
 			continue;
 
+		irq_desc = irq_to_desc_alloc_node(irq, numa_node_id());
+		if (unlikely(!irq_desc)) {
+			pr_info("can't get irq_desc for %d\n", irq);
+			continue;
+		}
+
+		intc_register_irq(desc, d, vect->enum_id, irq);
+
 		for (k = i + 1; k < desc->nr_vectors; k++) {
 			struct intc_vect *vect2 = desc->vectors + k;
+			unsigned int irq2 = evt2irq(vect2->vect);
 
 			if (vect->enum_id != vect2->enum_id)
 				continue;
 
-			vect2->enum_id = 0;
-
-			if (!intc_evt2irq_table)
-				intc_evt2irq_table = kzalloc(NR_IRQS, GFP_NOWAIT);
-
-			if (!intc_evt2irq_table) {
-				pr_warning("intc: cannot allocate evt2irq!\n");
+			/*
+			 * In the case of multi-evt handling and sparse
+			 * IRQ support, each vector still needs to have
+			 * its own backing irq_desc.
+			 */
+			irq_desc = irq_to_desc_alloc_node(irq2, numa_node_id());
+			if (unlikely(!irq_desc)) {
+				pr_info("can't get irq_desc for %d\n", irq2);
 				continue;
 			}
 
-			intc_evt2irq_table[evt2irq(vect2->vect)] = first_irq;
-		}
-	}
-
-	/* register the vectors one by one */
-	for (i = 0; i < desc->nr_vectors; i++) {
-		struct intc_vect *vect = desc->vectors + i;
-		unsigned int irq = evt2irq(vect->vect);
-		struct irq_desc *irq_desc;
-
-		if (!vect->enum_id)
-			continue;
+			vect2->enum_id = 0;
 
-		irq_desc = irq_to_desc_alloc_node(irq, numa_node_id());
-		if (unlikely(!irq_desc)) {
-			printk(KERN_INFO "can not get irq_desc for %d\n", irq);
-			continue;
+			/* redirect this interrupts to the first one */
+			set_irq_chip_and_handler_name(irq2, &d->chip,
+					intc_redirect_irq, "redirect");
+			set_irq_data(irq2, (void *)irq);
 		}
-
-		intc_register_irq(desc, d, vect->enum_id, irq);
 	}
 }
 
diff --git a/drivers/uio/uio_pdrv_genirq.c b/drivers/uio/uio_pdrv_genirq.c
index 3f06818cf9f..02347c57357 100644
--- a/drivers/uio/uio_pdrv_genirq.c
+++ b/drivers/uio/uio_pdrv_genirq.c
@@ -20,6 +20,7 @@
 #include <linux/bitops.h>
 #include <linux/interrupt.h>
 #include <linux/stringify.h>
+#include <linux/pm_runtime.h>
 
 #define DRIVER_NAME "uio_pdrv_genirq"
 
@@ -27,8 +28,27 @@ struct uio_pdrv_genirq_platdata {
 	struct uio_info *uioinfo;
 	spinlock_t lock;
 	unsigned long flags;
+	struct platform_device *pdev;
 };
 
+static int uio_pdrv_genirq_open(struct uio_info *info, struct inode *inode)
+{
+	struct uio_pdrv_genirq_platdata *priv = info->priv;
+
+	/* Wait until the Runtime PM code has woken up the device */
+	pm_runtime_get_sync(&priv->pdev->dev);
+	return 0;
+}
+
+static int uio_pdrv_genirq_release(struct uio_info *info, struct inode *inode)
+{
+	struct uio_pdrv_genirq_platdata *priv = info->priv;
+
+	/* Tell the Runtime PM code that the device has become idle */
+	pm_runtime_put_sync(&priv->pdev->dev);
+	return 0;
+}
+
 static irqreturn_t uio_pdrv_genirq_handler(int irq, struct uio_info *dev_info)
 {
 	struct uio_pdrv_genirq_platdata *priv = dev_info->priv;
@@ -97,6 +117,7 @@ static int uio_pdrv_genirq_probe(struct platform_device *pdev)
 	priv->uioinfo = uioinfo;
 	spin_lock_init(&priv->lock);
 	priv->flags = 0; /* interrupt is enabled to begin with */
+	priv->pdev = pdev;
 
 	uiomem = &uioinfo->mem[0];
 
@@ -136,8 +157,17 @@ static int uio_pdrv_genirq_probe(struct platform_device *pdev)
 	uioinfo->irq_flags |= IRQF_DISABLED;
 	uioinfo->handler = uio_pdrv_genirq_handler;
 	uioinfo->irqcontrol = uio_pdrv_genirq_irqcontrol;
+	uioinfo->open = uio_pdrv_genirq_open;
+	uioinfo->release = uio_pdrv_genirq_release;
 	uioinfo->priv = priv;
 
+	/* Enable Runtime PM for this device:
+	 * The device starts in suspended state to allow the hardware to be
+	 * turned off by default. The Runtime PM bus code should power on the
+	 * hardware and enable clocks at open().
+	 */
+	pm_runtime_enable(&pdev->dev);
+
 	ret = uio_register_device(&pdev->dev, priv->uioinfo);
 	if (ret) {
 		dev_err(&pdev->dev, "unable to register uio device\n");
@@ -157,16 +187,40 @@ static int uio_pdrv_genirq_remove(struct platform_device *pdev)
 	struct uio_pdrv_genirq_platdata *priv = platform_get_drvdata