Merge tag 'rtc-4.8' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux

Pull RTC updates from Alexandre Belloni:
 "RTC for 4.8

  Cleanups:
   - huge cleanup of rtc-generic and char/genrtc this allowed to cleanup
     rtc-cmos, rtc-sh, rtc-m68k, rtc-powerpc and rtc-parisc
   - move mn10300 to rtc-cmos

  Subsystem:
   - fix wakealarms after hibernate
   - multiples fixes for rctest
   - simplify implementations of .read_alarm

  New drivers:
   - Maxim MAX6916

  Drivers:
   - ds1307: fix weekday
   - m41t80: add wakeup support
   - pcf85063: add support for PCF85063A variant
   - rv8803: extend i2c fix and other fixes
   - s35390a: fix alarm reading, this fixes instant reboot after
     shutdown for QNAP TS-41x
   - s3c: clock fixes"

* tag 'rtc-4.8' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux: (65 commits)
  rtc: rv8803: Clear V1F when setting the time
  rtc: rv8803: Stop the clock while setting the time
  rtc: rv8803: Always apply the I²C workaround
  rtc: rv8803: Fix read day of week
  rtc: rv8803: Remove the check for valid time
  rtc: rv8803: Kconfig: Indicate rx8900 support
  rtc: asm9260: remove .owner field for driver
  rtc: at91sam9: Fix missing spin_lock_init()
  rtc: m41t80: add suspend handlers for alarm IRQ
  rtc: m41t80: make it a real error message
  rtc: pcf85063: Add support for the PCF85063A device
  rtc: pcf85063: fix year range
  rtc: hym8563: in .read_alarm set .tm_sec to 0 to signal minute accuracy
  rtc: explicitly set tm_sec = 0 for drivers with minute accurancy
  rtc: s3c: Add s3c_rtc_{enable/disable}_clk in s3c_rtc_setfreq()
  rtc: s3c: Remove unnecessary call to disable already disabled clock
  rtc: abx80x: use devm_add_action_or_reset()
  rtc: m41t80: use devm_add_action_or_reset()
  rtc: fix a typo and reduce three empty lines to one
  rtc: s35390a: improve two comments in .set_alarm
  ...

MAINTAINERS

@@ -9828,10 +9828,14 @@ L:	rtc-linux@googlegroups.com
 Q:	http://patchwork.ozlabs.org/project/rtc-linux/list/
 T:	git git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux.git
 S:	Maintained
+F:	Documentation/devicetree/bindings/rtc/
 F:	Documentation/rtc.txt
 F:	drivers/rtc/
 F:	include/linux/rtc.h
 F:	include/uapi/linux/rtc.h
+F:	include/linux/rtc/
+F:	include/linux/platform_data/rtc-*
+F:	tools/testing/selftests/timers/rtctest.c
 
 REALTEK AUDIO CODECS
 M:	Bard Liao <bardliao@realtek.com>

arch/alpha/include/asm/rtc.h

-#include <asm-generic/rtc.h>

arch/alpha/kernel/core_marvel.c

@@ -24,7 +24,6 @@
 #include <asm/gct.h>
 #include <asm/pgalloc.h>
 #include <asm/tlbflush.h>
-#include <asm/rtc.h>
 #include <asm/vga.h>
 
 #include "proto.h"

arch/alpha/kernel/rtc.c

@@ -15,8 +15,6 @@
 #include <linux/rtc.h>
 #include <linux/platform_device.h>
 
-#include <asm/rtc.h>
-
 #include "proto.h"
 
 
@@ -81,7 +79,7 @@ init_rtc_epoch(void)
 static int
 alpha_rtc_read_time(struct device *dev, struct rtc_time *tm)
 {
-	__get_rtc_time(tm);
+	mc146818_get_time(tm);
 
 	/* Adjust for non-default epochs.  It's easier to depend on the
 	   generic __get_rtc_time and adjust the epoch here than create
@@ -112,7 +110,7 @@ alpha_rtc_set_time(struct device *dev, struct rtc_time *tm)
 		tm = &xtm;
 	}
 
-	return __set_rtc_time(tm);
+	return mc146818_set_time(tm);
 }
 
 static int

arch/arm/mach-ep93xx/ts72xx.c

@@ -16,7 +16,7 @@
 #include <linux/init.h>
 #include <linux/platform_device.h>
 #include <linux/io.h>
-#include <linux/m48t86.h>
+#include <linux/platform_data/rtc-m48t86.h>
 #include <linux/mtd/nand.h>
 #include <linux/mtd/partitions.h>
 

arch/arm/mach-orion5x/ts78xx-setup.c

@@ -16,7 +16,7 @@
 #include <linux/platform_device.h>
 #include <linux/mv643xx_eth.h>
 #include <linux/ata_platform.h>
-#include <linux/m48t86.h>
+#include <linux/platform_data/rtc-m48t86.h>
 #include <linux/mtd/nand.h>
 #include <linux/mtd/partitions.h>
 #include <linux/timeriomem-rng.h>

arch/arm/mach-pxa/cm-x270.c

@@ -14,7 +14,7 @@
 #include <linux/gpio.h>
 #include <linux/delay.h>
 
-#include <linux/rtc-v3020.h>
+#include <linux/platform_data/rtc-v3020.h>
 #include <video/mbxfb.h>
 
 #include <linux/spi/spi.h>

arch/arm/mach-pxa/cm-x300.c

@@ -25,7 +25,7 @@
 #include <linux/gpio.h>
 #include <linux/dm9000.h>
 #include <linux/leds.h>
-#include <linux/rtc-v3020.h>
+#include <linux/platform_data/rtc-v3020.h>
 #include <linux/pwm.h>
 #include <linux/pwm_backlight.h>
 

arch/arm/mach-pxa/em-x270.c

@@ -14,7 +14,7 @@
 #include <linux/delay.h>
 
 #include <linux/dm9000.h>
-#include <linux/rtc-v3020.h>
+#include <linux/platform_data/rtc-v3020.h>
 #include <linux/mtd/nand.h>
 #include <linux/mtd/partitions.h>
 #include <linux/mtd/physmap.h>

arch/frv/include/asm/mc146818rtc.h

-/* mc146818rtc.h: RTC defs
- *
- * Copyright (C) 2005 Red Hat, Inc. All Rights Reserved.
- * Written by David Howells (dhowells@redhat.com)
- *
- * 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.
- */
-
-#ifndef _ASM_MC146818RTC_H
-#define _ASM_MC146818RTC_H
-
-
-#endif /* _ASM_MC146818RTC_H */

arch/h8300/include/asm/mc146818rtc.h

-/*
- * Machine dependent access functions for RTC registers.
- */
-#ifndef _H8300_MC146818RTC_H
-#define _H8300_MC146818RTC_H
-
-/* empty include file to satisfy the include in genrtc.c/ide-geometry.c */
-
-#endif /* _H8300_MC146818RTC_H */

arch/ia64/include/asm/mc146818rtc.h

-#ifndef _ASM_IA64_MC146818RTC_H
-#define _ASM_IA64_MC146818RTC_H
-
-/*
- * Machine dependent access functions for RTC registers.
- */
-
-/* empty include file to satisfy the include in genrtc.c */
-
-#endif /* _ASM_IA64_MC146818RTC_H */

arch/m68k/amiga/config.c

@@ -35,7 +35,6 @@
 #include <asm/amigahw.h>
 #include <asm/amigaints.h>
 #include <asm/irq.h>
-#include <asm/rtc.h>
 #include <asm/machdep.h>
 #include <asm/io.h>
 

arch/m68k/apollo/config.c

@@ -15,7 +15,6 @@
 #include <asm/pgtable.h>
 #include <asm/apollohw.h>
 #include <asm/irq.h>
-#include <asm/rtc.h>
 #include <asm/machdep.h>
 
 u_long sio01_physaddr;

arch/m68k/bvme6000/config.c

@@ -34,7 +34,6 @@
 #include <asm/setup.h>
 #include <asm/irq.h>
 #include <asm/traps.h>
-#include <asm/rtc.h>
 #include <asm/machdep.h>
 #include <asm/bvme6000hw.h>
 

arch/m68k/hp300/config.c

@@ -12,6 +12,7 @@
 #include <linux/string.h>
 #include <linux/kernel.h>
 #include <linux/console.h>
+#include <linux/rtc.h>
 
 #include <asm/bootinfo.h>
 #include <asm/bootinfo-hp300.h>
@@ -20,7 +21,6 @@
 #include <asm/blinken.h>
 #include <asm/io.h>                               /* readb() and writeb() */
 #include <asm/hp300hw.h>
-#include <asm/rtc.h>
 
 #include "time.h"
 

arch/m68k/include/asm/rtc.h

-/* include/asm-m68k/rtc.h
- *
- * Copyright Richard Zidlicky
- * implementation details for genrtc/q40rtc driver
- */
-/* permission is hereby granted to copy, modify and redistribute this code
- * in terms of the GNU Library General Public License, Version 2 or later,
- * at your option.
- */
-
-#ifndef _ASM_RTC_H
-#define _ASM_RTC_H
-
-#ifdef __KERNEL__
-
-#include <linux/rtc.h>
-#include <asm/errno.h>
-#include <asm/machdep.h>
-
-#define RTC_PIE 0x40		/* periodic interrupt enable */
-#define RTC_AIE 0x20		/* alarm interrupt enable */
-#define RTC_UIE 0x10		/* update-finished interrupt enable */
-
-/* some dummy definitions */
-#define RTC_BATT_BAD 0x100	/* battery bad */
-#define RTC_SQWE 0x08		/* enable square-wave output */
-#define RTC_DM_BINARY 0x04	/* all time/date values are BCD if clear */
-#define RTC_24H 0x02		/* 24 hour mode - else hours bit 7 means pm */
-#define RTC_DST_EN 0x01	        /* auto switch DST - works f. USA only */
-
-static inline unsigned int get_rtc_time(struct rtc_time *time)
-{
-	/*
-	 * Only the values that we read from the RTC are set. We leave
-	 * tm_wday, tm_yday and tm_isdst untouched. Even though the
-	 * RTC has RTC_DAY_OF_WEEK, we ignore it, as it is only updated
-	 * by the RTC when initially set to a non-zero value.
-	 */
-	if (mach_hwclk)
-		mach_hwclk(0, time);
-	return RTC_24H;
-}
-
-static inline int set_rtc_time(struct rtc_time *time)
-{
-	if (mach_hwclk)
-		return mach_hwclk(1, time);
-	return -EINVAL;
-}
-
-static inline unsigned int get_rtc_ss(void)
-{
-	if (mach_get_ss)
-		return mach_get_ss();
-	else{
-		struct rtc_time h;
-
-		get_rtc_time(&h);
-		return h.tm_sec;
-	}
-}
-
-static inline int get_rtc_pll(struct rtc_pll_info *pll)
-{
-	if (mach_get_rtc_pll)
-		return mach_get_rtc_pll(pll);
-	else
-		return -EINVAL;
-}
-static inline int set_rtc_pll(struct rtc_pll_info *pll)
-{
-	if (mach_set_rtc_pll)
-		return mach_set_rtc_pll(pll);
-	else
-		return -EINVAL;
-}
-#endif /* __KERNEL__ */
-
-#endif /* _ASM__RTC_H */

arch/m68k/kernel/time.c

@@ -86,7 +86,49 @@ void read_persistent_clock(struct timespec *ts)
 	}
 }
 
-#ifdef CONFIG_ARCH_USES_GETTIMEOFFSET
+#if defined(CONFIG_ARCH_USES_GETTIMEOFFSET) && IS_ENABLED(CONFIG_RTC_DRV_GENERIC)
+static int rtc_generic_get_time(struct device *dev, struct rtc_time *tm)
+{
+	mach_hwclk(0, tm);
+	return rtc_valid_tm(tm);
+}
+
+static int rtc_generic_set_time(struct device *dev, struct rtc_time *tm)
+{
+	if (mach_hwclk(1, tm) < 0)
+		return -EOPNOTSUPP;
+	return 0;
+}
+
+static int rtc_ioctl(struct device *dev, unsigned int cmd, unsigned long arg)
+{
+	struct rtc_pll_info pll;
+	struct rtc_pll_info __user *argp = (void __user *)arg;
+
+	switch (cmd) {
+	case RTC_PLL_GET:
+		if (!mach_get_rtc_pll || mach_get_rtc_pll(&pll))
+			return -EINVAL;
+		return copy_to_user(argp, &pll, sizeof pll) ? -EFAULT : 0;
+
+	case RTC_PLL_SET:
+		if (!mach_set_rtc_pll)
+			return -EINVAL;
+		if (!capable(CAP_SYS_TIME))
+			return -EACCES;
+		if (copy_from_user(&pll, argp, sizeof(pll)))
+			return -EFAULT;
+		return mach_set_rtc_pll(&pll);
+	}
+
+	return -ENOIOCTLCMD;
+}
+
+static const struct rtc_class_ops generic_rtc_ops = {
+	.ioctl = rtc_ioctl,
+	.read_time = rtc_generic_get_time,
+	.set_time = rtc_generic_set_time,
+};
 
 static int __init rtc_init(void)
 {
@@ -95,7 +137,9 @@ static int __init rtc_init(void)
 	if (!mach_hwclk)
 		return -ENODEV;
 
-	pdev = platform_device_register_simple("rtc-generic", -1, NULL, 0);
+	pdev = platform_device_register_data(NULL, "rtc-generic", -1,
+					     &generic_rtc_ops,
+					     sizeof(generic_rtc_ops));
 	return PTR_ERR_OR_ZERO(pdev);
 }
 

arch/m68k/mac/config.c

@@ -10,6 +10,7 @@
  * Miscellaneous linux stuff
  */
 
+#include <linux/errno.h>
 #include <linux/module.h>
 #include <linux/types.h>
 #include <linux/mm.h>
@@ -25,6 +26,7 @@
 #include <linux/platform_device.h>
 #include <linux/adb.h>
 #include <linux/cuda.h>
+#include <linux/rtc.h>
 
 #include <asm/setup.h>
 #include <asm/bootinfo.h>
@@ -34,7 +36,6 @@
 #include <asm/io.h>
 #include <asm/irq.h>
 #include <asm/pgtable.h>
-#include <asm/rtc.h>
 #include <asm/machdep.h>
 
 #include <asm/macintosh.h>

arch/m68k/mac/misc.c

@@ -18,7 +18,6 @@
 
 #include <asm/uaccess.h>
 #include <asm/io.h>
-#include <asm/rtc.h>
 #include <asm/segment.h>
 #include <asm/setup.h>
 #include <asm/macintosh.h>