Merge branch 'next' (accumulated 3.16 merge window patches) into master

Now that 3.15 is released, this merges the 'next' branch into 'master',
bringing us to the normal situation where my 'master' branch is the
merge window.

* accumulated work in next: (6809 commits)
  ufs: sb mutex merge + mutex_destroy
  powerpc: update comments for generic idle conversion
  cris: update comments for generic idle conversion
  idle: remove cpu_idle() forward declarations
  nbd: zero from and len fields in NBD_CMD_DISCONNECT.
  mm: convert some level-less printks to pr_*
  MAINTAINERS: adi-buildroot-devel is moderated
  MAINTAINERS: add linux-api for review of API/ABI changes
  mm/kmemleak-test.c: use pr_fmt for logging
  fs/dlm/debug_fs.c: replace seq_printf by seq_puts
  fs/dlm/lockspace.c: convert simple_str to kstr
  fs/dlm/config.c: convert simple_str to kstr
  mm: mark remap_file_pages() syscall as deprecated
  mm: memcontrol: remove unnecessary memcg argument from soft limit functions
  mm: memcontrol: clean up memcg zoneinfo lookup
  mm/memblock.c: call kmemleak directly from memblock_(alloc|free)
  mm/mempool.c: update the kmemleak stack trace for mempool allocations
  lib/radix-tree.c: update the kmemleak stack trace for radix tree allocations
  mm: introduce kmemleak_update_trace()
  mm/kmemleak.c: use %u to print ->checksum
  ...

1 files changed, 60 insertions, 25 deletions

diff --git a/drivers/rtc/rtc-cmos.c b/drivers/rtc/rtc-cmos.c
index 0963c9309c7..b0e4a3eb33c 100644
--- a/drivers/rtc/rtc-cmos.c
+++ b/drivers/rtc/rtc-cmos.c
@@ -647,6 +647,7 @@ cmos_do_probe(struct device *dev, struct resource *ports, int rtc_irq)
 	int				retval = 0;
 	unsigned char			rtc_control;
 	unsigned			address_space;
+	u32				flags = 0;
 
 	/* there can be only one ... */
 	if (cmos_rtc.dev)
@@ -660,9 +661,12 @@ cmos_do_probe(struct device *dev, struct resource *ports, int rtc_irq)
 	 * REVISIT non-x86 systems may instead use memory space resources
 	 * (needing ioremap etc), not i/o space resources like this ...
 	 */
-	ports = request_region(ports->start,
-			resource_size(ports),
-			driver_name);
+	if (RTC_IOMAPPED)
+		ports = request_region(ports->start, resource_size(ports),
+				       driver_name);
+	else
+		ports = request_mem_region(ports->start, resource_size(ports),
+					   driver_name);
 	if (!ports) {
 		dev_dbg(dev, "i/o registers already in use\n");
 		return -EBUSY;
@@ -699,6 +703,11 @@ cmos_do_probe(struct device *dev, struct resource *ports, int rtc_irq)
 	 * expect CMOS_READ and friends to handle.
 	 */
 	if (info) {
+		if (info->flags)
+			flags = info->flags;
+		if (info->address_space)
+			address_space = info->address_space;
+
 		if (info->rtc_day_alarm && info->rtc_day_alarm < 128)
 			cmos_rtc.day_alrm = info->rtc_day_alarm;
 		if (info->rtc_mon_alarm && info->rtc_mon_alarm < 128)
@@ -726,18 +735,21 @@ cmos_do_probe(struct device *dev, struct resource *ports, int rtc_irq)
 
 	spin_lock_irq(&rtc_lock);
 
-	/* force periodic irq to CMOS reset default of 1024Hz;
-	 *
-	 * REVISIT it's been reported that at least one x86_64 ALI mobo
-	 * doesn't use 32KHz here ... for portability we might need to
-	 * do something about other clock frequencies.
-	 */
-	cmos_rtc.rtc->irq_freq = 1024;
-	hpet_set_periodic_freq(cmos_rtc.rtc->irq_freq);
-	CMOS_WRITE(RTC_REF_CLCK_32KHZ | 0x06, RTC_FREQ_SELECT);
+	if (!(flags & CMOS_RTC_FLAGS_NOFREQ)) {
+		/* force periodic irq to CMOS reset default of 1024Hz;
+		 *
+		 * REVISIT it's been reported that at least one x86_64 ALI
+		 * mobo doesn't use 32KHz here ... for portability we might
+		 * need to do something about other clock frequencies.
+		 */
+		cmos_rtc.rtc->irq_freq = 1024;
+		hpet_set_periodic_freq(cmos_rtc.rtc->irq_freq);
+		CMOS_WRITE(RTC_REF_CLCK_32KHZ | 0x06, RTC_FREQ_SELECT);
+	}
 
 	/* disable irqs */
-	cmos_irq_disable(&cmos_rtc, RTC_PIE | RTC_AIE | RTC_UIE);
+	if (is_valid_irq(rtc_irq))
+		cmos_irq_disable(&cmos_rtc, RTC_PIE | RTC_AIE | RTC_UIE);
 
 	rtc_control = CMOS_READ(RTC_CONTROL);
 
@@ -802,14 +814,18 @@ cleanup1:
 	cmos_rtc.dev = NULL;
 	rtc_device_unregister(cmos_rtc.rtc);
 cleanup0:
-	release_region(ports->start, resource_size(ports));
+	if (RTC_IOMAPPED)
+		release_region(ports->start, resource_size(ports));
+	else
+		release_mem_region(ports->start, resource_size(ports));
 	return retval;
 }
 
-static void cmos_do_shutdown(void)
+static void cmos_do_shutdown(int rtc_irq)
 {
 	spin_lock_irq(&rtc_lock);
-	cmos_irq_disable(&cmos_rtc, RTC_IRQMASK);
+	if (is_valid_irq(rtc_irq))
+		cmos_irq_disable(&cmos_rtc, RTC_IRQMASK);
 	spin_unlock_irq(&rtc_lock);
 }
 
@@ -818,7 +834,7 @@ static void __exit cmos_do_remove(struct device *dev)
 	struct cmos_rtc	*cmos = dev_get_drvdata(dev);
 	struct resource *ports;
 
-	cmos_do_shutdown();
+	cmos_do_shutdown(cmos->irq);
 
 	sysfs_remove_bin_file(&dev->kobj, &nvram);
 
@@ -831,7 +847,10 @@ static void __exit cmos_do_remove(struct device *dev)
 	cmos->rtc = NULL;
 
 	ports = cmos->iomem;
-	release_region(ports->start, resource_size(ports));
+	if (RTC_IOMAPPED)
+		release_region(ports->start, resource_size(ports));
+	else
+		release_mem_region(ports->start, resource_size(ports));
 	cmos->iomem = NULL;
 
 	cmos->dev = NULL;
@@ -1065,10 +1084,13 @@ static void __exit cmos_pnp_remove(struct pnp_dev *pnp)
 
 static void cmos_pnp_shutdown(struct pnp_dev *pnp)
 {
-	if (system_state == SYSTEM_POWER_OFF && !cmos_poweroff(&pnp->dev))
+	struct device *dev = &pnp->dev;
+	struct cmos_rtc	*cmos = dev_get_drvdata(dev);
+
+	if (system_state == SYSTEM_POWER_OFF && !cmos_poweroff(dev))
 		return;
 
-	cmos_do_shutdown();
+	cmos_do_shutdown(cmos->irq);
 }
 
 static const struct pnp_device_id rtc_ids[] = {
@@ -1143,11 +1165,21 @@ static inline void cmos_of_init(struct platform_device *pdev) {}
 
 static int __init cmos_platform_probe(struct platform_device *pdev)
 {
+	struct resource *resource;
+	int irq;
+
 	cmos_of_init(pdev);
 	cmos_wake_setup(&pdev->dev);
-	return cmos_do_probe(&pdev->dev,
-			platform_get_resource(pdev, IORESOURCE_IO, 0),
-			platform_get_irq(pdev, 0));
+
+	if (RTC_IOMAPPED)
+		resource = platform_get_resource(pdev, IORESOURCE_IO, 0);
+	else
+		resource = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+	irq = platform_get_irq(pdev, 0);
+	if (irq < 0)
+		irq = -1;
+
+	return cmos_do_probe(&pdev->dev, resource, irq);
 }
 
 static int __exit cmos_platform_remove(struct platform_device *pdev)
@@ -1158,10 +1190,13 @@ static int __exit cmos_platform_remove(struct platform_device *pdev)
 
 static void cmos_platform_shutdown(struct platform_device *pdev)
 {
-	if (system_state == SYSTEM_POWER_OFF && !cmos_poweroff(&pdev->dev))
+	struct device *dev = &pdev->dev;
+	struct cmos_rtc	*cmos = dev_get_drvdata(dev);
+
+	if (system_state == SYSTEM_POWER_OFF && !cmos_poweroff(dev))
 		return;
 
-	cmos_do_shutdown();
+	cmos_do_shutdown(cmos->irq);
 }
 
 /* work with hotplug and coldplug */