Merge branch 'akpm' (Andrew's patch-bomb)

Merge misc patches from Andrew Morton:
 "The MM tree is rather stuck while I wait to find out what the heck is
  happening with sched/numa.  Probably I'll need to route around all the
  code which was added to -next, sigh.

  So this is "everything else", or at least most of it - other small
  bits are still awaiting resolutions of various kinds."

* emailed patches from Andrew Morton <akpm@linux-foundation.org>: (180 commits)
  lib/decompress.c add __init to decompress_method and data
  kernel/resource.c: fix stack overflow in __reserve_region_with_split()
  omfs: convert to use beXX_add_cpu()
  taskstats: cgroupstats_user_cmd() may leak on error
  aoe: update aoe-internal version number to 50
  aoe: update documentation to better reflect aoe-plus-udev usage
  aoe: remove unused code
  aoe: make dynamic block minor numbers the default
  aoe: update and specify AoE address guards and error messages
  aoe: retain static block device numbers for backwards compatibility
  aoe: support more AoE addresses with dynamic block device minor numbers
  aoe: update documentation with new URL and VM settings reference
  aoe: update copyright year in touched files
  aoe: update internal version number to 49
  aoe: remove unused code and add cosmetic improvements
  aoe: increase net_device reference count while using it
  aoe: associate frames with the AoE storage target
  aoe: disallow unsupported AoE minor addresses
  aoe: do revalidation steps in order
  aoe: failover remote interface based on aoe_deadsecs parameter
  ...

25 files changed, 1982 insertions, 256 deletions

diff --git a/drivers/rtc/Kconfig b/drivers/rtc/Kconfig
index fabc99a75c6..e069f176a82 100644
--- a/drivers/rtc/Kconfig
+++ b/drivers/rtc/Kconfig
@@ -19,7 +19,6 @@ if RTC_CLASS
 
 config RTC_HCTOSYS
 	bool "Set system time from RTC on startup and resume"
-	depends on RTC_CLASS = y
 	default y
 	help
 	  If you say yes here, the system time (wall clock) will be set using
@@ -51,7 +50,6 @@ config RTC_HCTOSYS_DEVICE
 
 config RTC_DEBUG
 	bool "RTC debug support"
-	depends on RTC_CLASS = y
 	help
 	  Say yes here to enable debugging support in the RTC framework
 	  and individual RTC drivers.
@@ -61,7 +59,6 @@ comment "RTC interfaces"
 config RTC_INTF_SYSFS
 	boolean "/sys/class/rtc/rtcN (sysfs)"
 	depends on SYSFS
-	default RTC_CLASS
 	help
 	  Say yes here if you want to use your RTCs using sysfs interfaces,
 	  /sys/class/rtc/rtc0 through /sys/.../rtcN.
@@ -69,19 +66,19 @@ config RTC_INTF_SYSFS
 	  If unsure, say Y.
 
 config RTC_INTF_PROC
-	boolean "/proc/driver/rtc (procfs for rtc0)"
+	boolean "/proc/driver/rtc (procfs for rtcN)"
 	depends on PROC_FS
-	default RTC_CLASS
 	help
-	  Say yes here if you want to use your first RTC through the proc
-	  interface, /proc/driver/rtc. Other RTCs will not be available
-	  through that API.
+	  Say yes here if you want to use your system clock RTC through
+	  the proc interface, /proc/driver/rtc.
+	  Other RTCs will not be available through that API.
+	  If there is no RTC for the system clock, then the first RTC(rtc0)
+	  is used by default.
 
 	  If unsure, say Y.
 
 config RTC_INTF_DEV
 	boolean "/dev/rtcN (character devices)"
-	default RTC_CLASS
 	help
 	  Say yes here if you want to use your RTCs using the /dev
 	  interfaces, which "udev" sets up as /dev/rtc0 through
@@ -127,7 +124,7 @@ if I2C
 
 config RTC_DRV_88PM860X
 	tristate "Marvell 88PM860x"
-	depends on RTC_CLASS && I2C && MFD_88PM860X
+	depends on I2C && MFD_88PM860X
 	help
 	  If you say yes here you get support for RTC function in Marvell
 	  88PM860x chips.
@@ -137,7 +134,7 @@ config RTC_DRV_88PM860X
 
 config RTC_DRV_88PM80X
 	tristate "Marvell 88PM80x"
-	depends on RTC_CLASS && I2C && MFD_88PM800
+	depends on I2C && MFD_88PM800
 	help
 	  If you say yes here you get support for RTC function in Marvell
 	  88PM80x chips.
@@ -165,7 +162,7 @@ config RTC_DRV_DS1307
 
 config RTC_DRV_DS1374
 	tristate "Dallas/Maxim DS1374"
-	depends on RTC_CLASS && I2C
+	depends on I2C
 	help
 	  If you say yes here you get support for Dallas Semiconductor
 	  DS1374 real-time clock chips. If an interrupt is associated
@@ -185,7 +182,7 @@ config RTC_DRV_DS1672
 
 config RTC_DRV_DS3232
 	tristate "Dallas/Maxim DS3232"
-	depends on RTC_CLASS && I2C
+	depends on I2C
 	help
 	  If you say yes here you get support for Dallas Semiconductor
 	  DS3232 real-time clock chips. If an interrupt is associated
@@ -203,6 +200,16 @@ config RTC_DRV_MAX6900
 	  This driver can also be built as a module. If so, the module
 	  will be called rtc-max6900.
 
+config RTC_DRV_MAX8907
+	tristate "Maxim MAX8907"
+	depends on MFD_MAX8907
+	help
+	  If you say yes here you will get support for the
+	  RTC of Maxim MAX8907 PMIC.
+
+	  This driver can also be built as a module. If so, the module
+	  will be called rtc-max8907.
+
 config RTC_DRV_MAX8925
 	tristate "Maxim MAX8925"
 	depends on MFD_MAX8925
@@ -325,7 +332,7 @@ config RTC_DRV_TWL92330
 
 config RTC_DRV_TWL4030
 	tristate "TI TWL4030/TWL5030/TWL6030/TPS659x0"
-	depends on RTC_CLASS && TWL4030_CORE
+	depends on TWL4030_CORE
 	help
 	  If you say yes here you get support for the RTC on the
 	  TWL4030/TWL5030/TWL6030 family chips, used mostly with OMAP3 platforms.
@@ -333,6 +340,26 @@ config RTC_DRV_TWL4030
 	  This driver can also be built as a module. If so, the module
 	  will be called rtc-twl.
 
+config RTC_DRV_TPS65910
+	tristate "TI TPS65910 RTC driver"
+	depends on RTC_CLASS && MFD_TPS65910
+	help
+	  If you say yes here you get support for the RTC on the
+	  TPS65910 chips.
+
+	  This driver can also be built as a module. If so, the module
+	  will be called rtc-tps65910.
+
+config RTC_DRV_RC5T583
+	tristate "RICOH 5T583 RTC driver"
+	depends on MFD_RC5T583
+	help
+	  If you say yes here you get support for the RTC on the
+	  RICOH 5T583 chips.
+
+	  This driver can also be built as a module. If so, the module
+	  will be called rtc-rc5t583.
+
 config RTC_DRV_S35390A
 	tristate "Seiko Instruments S-35390A"
 	select BITREVERSE
@@ -538,7 +565,6 @@ config RTC_DRV_DS1302
 
 config RTC_DRV_DS1511
 	tristate "Dallas DS1511"
-	depends on RTC_CLASS
 	help
 	  If you say yes here you get support for the
 	  Dallas DS1511 timekeeping/watchdog chip.
@@ -583,7 +609,6 @@ config RTC_DRV_EFI
 
 config RTC_DRV_STK17TA8
 	tristate "Simtek STK17TA8"
-	depends on RTC_CLASS
 	help
 	  If you say yes here you get support for the
 	  Simtek STK17TA8 timekeeping chip.
@@ -658,6 +683,15 @@ config RTC_DRV_V3020
 	  This driver can also be built as a module. If so, the module
 	  will be called rtc-v3020.
 
+config RTC_DRV_DS2404
+	tristate "Dallas DS2404"
+	help
+	  If you say yes here you get support for the
+	  Dallas DS2404 RTC chip.
+
+	  This driver can also be built as a module. If so, the module
+	  will be called rtc-ds2404.
+
 config RTC_DRV_WM831X
 	tristate "Wolfson Microelectronics WM831x RTC"
 	depends on MFD_WM831X
@@ -704,6 +738,7 @@ config RTC_DRV_AB3100
 config RTC_DRV_AB8500
 	tristate "ST-Ericsson AB8500 RTC"
 	depends on AB8500_CORE
+	select RTC_INTF_DEV
 	select RTC_INTF_DEV_UIE_EMUL
 	help
 	  Select this to enable the ST-Ericsson AB8500 power management IC RTC
@@ -711,7 +746,7 @@ config RTC_DRV_AB8500
 
 config RTC_DRV_NUC900
 	tristate "NUC910/NUC920 RTC driver"
-	depends on RTC_CLASS && ARCH_W90X900
+	depends on ARCH_W90X900
 	help
 	  If you say yes here you get support for the RTC subsystem of the
 	  NUC910/NUC920 used in embedded systems.
@@ -731,7 +766,6 @@ config RTC_DRV_DAVINCI
 config RTC_DRV_IMXDI
 	tristate "Freescale IMX DryIce Real Time Clock"
 	depends on SOC_IMX25
-	depends on RTC_CLASS
 	help
 	   Support for Freescale IMX DryIce RTC
 
@@ -791,7 +825,7 @@ config RTC_DRV_SA1100
 
 config RTC_DRV_SH
 	tristate "SuperH On-Chip RTC"
-	depends on RTC_CLASS && SUPERH && HAVE_CLK
+	depends on SUPERH && HAVE_CLK
 	help
 	  Say Y here to enable support for the on-chip RTC found in
 	  most SuperH processors.
@@ -1023,7 +1057,6 @@ config RTC_DRV_MPC5121
 
 config RTC_DRV_JZ4740
 	tristate "Ingenic JZ4740 SoC"
-	depends on RTC_CLASS
 	depends on MACH_JZ4740
 	help
 	  If you say yes here you get support for the Ingenic JZ4740 SoC RTC
@@ -1053,7 +1086,7 @@ config RTC_DRV_PM8XXX
 
 config RTC_DRV_TEGRA
 	tristate "NVIDIA Tegra Internal RTC driver"
-	depends on RTC_CLASS && ARCH_TEGRA
+	depends on ARCH_TEGRA
 	help
 	  If you say yes here you get support for the
 	  Tegra 200 series internal RTC module.
@@ -1090,7 +1123,6 @@ config RTC_DRV_LOONGSON1
 config RTC_DRV_MXC
 	tristate "Freescale MXC Real Time Clock"
 	depends on ARCH_MXC
-	depends on RTC_CLASS
 	help
 	   If you say yes here you get support for the Freescale MXC
 	   RTC module.
@@ -1098,4 +1130,15 @@ config RTC_DRV_MXC
 	   This driver can also be built as a module, if so, the module
 	   will be called "rtc-mxc".
 
+config RTC_DRV_SNVS
+	tristate "Freescale SNVS RTC support"
+	depends on HAS_IOMEM
+	depends on OF
+	help
+	   If you say yes here you get support for the Freescale SNVS
+	   Low Power (LP) RTC module.
+
+	   This driver can also be built as a module, if so, the module
+	   will be called "rtc-snvs".
+
 endif # RTC_CLASS
diff --git a/drivers/rtc/Makefile b/drivers/rtc/Makefile
index 0d5b2b66f90..56297f0fd38 100644
--- a/drivers/rtc/Makefile
+++ b/drivers/rtc/Makefile
@@ -43,6 +43,7 @@ obj-$(CONFIG_RTC_DRV_DS1511)	+= rtc-ds1511.o
 obj-$(CONFIG_RTC_DRV_DS1553)	+= rtc-ds1553.o
 obj-$(CONFIG_RTC_DRV_DS1672)	+= rtc-ds1672.o
 obj-$(CONFIG_RTC_DRV_DS1742)	+= rtc-ds1742.o
+obj-$(CONFIG_RTC_DRV_DS2404)    += rtc-ds2404.o
 obj-$(CONFIG_RTC_DRV_DS3232)	+= rtc-ds3232.o
 obj-$(CONFIG_RTC_DRV_DS3234)	+= rtc-ds3234.o
 obj-$(CONFIG_RTC_DRV_EFI)	+= rtc-efi.o
@@ -64,6 +65,7 @@ obj-$(CONFIG_RTC_DRV_M48T59)	+= rtc-m48t59.o
 obj-$(CONFIG_RTC_DRV_M48T86)	+= rtc-m48t86.o
 obj-$(CONFIG_RTC_DRV_MXC)	+= rtc-mxc.o
 obj-$(CONFIG_RTC_DRV_MAX6900)	+= rtc-max6900.o
+obj-$(CONFIG_RTC_DRV_MAX8907)	+= rtc-max8907.o
 obj-$(CONFIG_RTC_DRV_MAX8925)	+= rtc-max8925.o
 obj-$(CONFIG_RTC_DRV_MAX8998)	+= rtc-max8998.o
 obj-$(CONFIG_RTC_DRV_MAX6902)	+= rtc-max6902.o
@@ -85,6 +87,7 @@ obj-$(CONFIG_RTC_DRV_PS3)	+= rtc-ps3.o
 obj-$(CONFIG_RTC_DRV_PUV3)	+= rtc-puv3.o
 obj-$(CONFIG_RTC_DRV_PXA)	+= rtc-pxa.o
 obj-$(CONFIG_RTC_DRV_R9701)	+= rtc-r9701.o
+obj-$(CONFIG_RTC_DRV_RC5T583)	+= rtc-rc5t583.o
 obj-$(CONFIG_RTC_DRV_RP5C01)	+= rtc-rp5c01.o
 obj-$(CONFIG_RTC_DRV_RS5C313)	+= rtc-rs5c313.o
 obj-$(CONFIG_RTC_DRV_RS5C348)	+= rtc-rs5c348.o
@@ -96,6 +99,7 @@ obj-$(CONFIG_RTC_DRV_S35390A)	+= rtc-s35390a.o
 obj-$(CONFIG_RTC_DRV_S3C)	+= rtc-s3c.o
 obj-$(CONFIG_RTC_DRV_SA1100)	+= rtc-sa1100.o
 obj-$(CONFIG_RTC_DRV_SH)	+= rtc-sh.o
+obj-$(CONFIG_RTC_DRV_SNVS)	+= rtc-snvs.o
 obj-$(CONFIG_RTC_DRV_SPEAR)	+= rtc-spear.o
 obj-$(CONFIG_RTC_DRV_STARFIRE)	+= rtc-starfire.o
 obj-$(CONFIG_RTC_DRV_STK17TA8)	+= rtc-stk17ta8.o
@@ -105,6 +109,7 @@ obj-$(CONFIG_RTC_DRV_TEGRA)	+= rtc-tegra.o
 obj-$(CONFIG_RTC_DRV_TEST)	+= rtc-test.o
 obj-$(CONFIG_RTC_DRV_TILE)	+= rtc-tile.o
 obj-$(CONFIG_RTC_DRV_TWL4030)	+= rtc-twl.o
+obj-$(CONFIG_RTC_DRV_TPS65910)	+= rtc-tps65910.o
 obj-$(CONFIG_RTC_DRV_TX4939)	+= rtc-tx4939.o
 obj-$(CONFIG_RTC_DRV_V3020)	+= rtc-v3020.o
 obj-$(CONFIG_RTC_DRV_VR41XX)	+= rtc-vr41xx.o
diff --git a/drivers/rtc/class.c b/drivers/rtc/class.c
index dc4c2748bbc..f8a0aab218c 100644
--- a/drivers/rtc/class.c
+++ b/drivers/rtc/class.c
@@ -31,8 +31,12 @@ static void rtc_device_release(struct device *dev)
 	kfree(rtc);
 }
 
-#if defined(CONFIG_PM) && defined(CONFIG_RTC_HCTOSYS_DEVICE)
+#ifdef CONFIG_RTC_HCTOSYS_DEVICE
+/* Result of the last RTC to system clock attempt. */
+int rtc_hctosys_ret = -ENODEV;
+#endif
 
+#if defined(CONFIG_PM) && defined(CONFIG_RTC_HCTOSYS_DEVICE)
 /*
  * On suspend(), measure the delta between one RTC and the
  * system's wall clock; restore it on resume().
@@ -84,6 +88,7 @@ static int rtc_resume(struct device *dev)
 	struct timespec		new_system, new_rtc;
 	struct timespec		sleep_time;
 
+	rtc_hctosys_ret = -ENODEV;
 	if (strcmp(dev_name(&rtc->dev), CONFIG_RTC_HCTOSYS_DEVICE) != 0)
 		return 0;
 
@@ -117,6 +122,7 @@ static int rtc_resume(struct device *dev)
 
 	if (sleep_time.tv_sec >= 0)
 		timekeeping_inject_sleeptime(&sleep_time);
+	rtc_hctosys_ret = 0;
 	return 0;
 }
 
@@ -238,6 +244,7 @@ void rtc_device_unregister(struct rtc_device *rtc)
 		rtc_proc_del_device(rtc);
 		device_unregister(&rtc->dev);
 		rtc->ops = NULL;
+		ida_simple_remove(&rtc_ida, rtc->id);
 		mutex_unlock(&rtc->ops_lock);
 		put_device(&rtc->dev);
 	}
diff --git a/drivers/rtc/hctosys.c b/drivers/rtc/hctosys.c
index bc90b091f19..4aa60d74004 100644
--- a/drivers/rtc/hctosys.c
+++ b/drivers/rtc/hctosys.c
@@ -22,8 +22,6 @@
  * the best guess is to add 0.5s.
  */
 
-int rtc_hctosys_ret = -ENODEV;
-
 static int __init rtc_hctosys(void)
 {
 	int err = -ENODEV;
@@ -56,7 +54,7 @@ static int __init rtc_hctosys(void)
 
 	rtc_tm_to_time(&tm, &tv.tv_sec);
 
-	do_settimeofday(&tv);
+	err = do_settimeofday(&tv);
 
 	dev_info(rtc->dev.parent,
 		"setting system clock to "
diff --git a/drivers/rtc/rtc-at91sam9.c b/drivers/rtc/rtc-at91sam9.c
index 1dd61f402b0..2dfe7a2fb99 100644
--- a/drivers/rtc/rtc-at91sam9.c
+++ b/drivers/rtc/rtc-at91sam9.c
@@ -473,18 +473,7 @@ static struct platform_driver at91_rtc_driver = {
 	},
 };
 
-static int __init at91_rtc_init(void)
-{
-	return platform_driver_register(&at91_rtc_driver);
-}
-module_init(at91_rtc_init);
-
-static void __exit at91_rtc_exit(void)
-{
-	platform_driver_unregister(&at91_rtc_driver);
-}
-module_exit(at91_rtc_exit);
-
+module_platform_driver(at91_rtc_driver);
 
 MODULE_AUTHOR("Michel Benoit");
 MODULE_DESCRIPTION("RTC driver for Atmel AT91SAM9x");
diff --git a/drivers/rtc/rtc-coh901331.c b/drivers/rtc/rtc-coh901331.c
index 76b2156d3c6..c8115b83e5a 100644
--- a/drivers/rtc/rtc-coh901331.c
+++ b/drivers/rtc/rtc-coh901331.c
@@ -276,8 +276,7 @@ static void coh901331_shutdown(struct platform_device *pdev)
 
 	clk_enable(rtap->clk);
 	writel(0, rtap->virtbase + COH901331_IRQ_MASK);
-	clk_disable(rtap->clk);
-	clk_unprepare(rtap->clk);
+	clk_disable_unprepare(rtap->clk);
 }
 
 static struct platform_driver coh901331_driver = {
diff --git a/drivers/rtc/rtc-ds1672.c b/drivers/rtc/rtc-ds1672.c
index 7fa67d0df17..45d65c0b3a8 100644
--- a/drivers/rtc/rtc-ds1672.c
+++ b/drivers/rtc/rtc-ds1672.c
@@ -37,8 +37,17 @@ static int ds1672_get_datetime(struct i2c_client *client, struct rtc_time *tm)
 	unsigned char buf[4];
 
 	struct i2c_msg msgs[] = {
-		{client->addr, 0, 1, &addr},	/* setup read ptr */
-		{client->addr, I2C_M_RD, 4, buf},	/* read date */
+		{/* setup read ptr */
+			.addr = client->addr,
+			.len = 1,
+			.buf = &addr
+		},
+		{/* read date */
+			.addr = client->addr,
+			.flags = I2C_M_RD,
+			.len = 4,
+			.buf = buf
+		},
 	};
 
 	/* read date registers */
@@ -99,8 +108,17 @@ static int ds1672_get_control(struct i2c_client *client, u8 *status)
 	unsigned char addr = DS1672_REG_CONTROL;
 
 	struct i2c_msg msgs[] = {
-		{client->addr, 0, 1, &addr},	/* setup read ptr */
-		{client->addr, I2C_M_RD, 1, status},	/* read control */
+		{/* setup read ptr */
+			.addr = client->addr,
+			.len = 1,
+			.buf = &addr
+		},
+		{/* read control */
+			.addr = client->addr,
+			.flags = I2C_M_RD,
+			.len = 1,
+			.buf = status
+		},
 	};
 
 	/* read control register */
diff --git a/drivers/rtc/rtc-ds2404.c b/drivers/rtc/rtc-ds2404.c
new file mode 100644
index 00000000000..5ea9df7c8c3
--- /dev/null
+++ b/drivers/rtc/rtc-ds2404.c
@@ -0,0 +1,303 @@
+/*
+ * Copyright (C) 2012 Sven Schnelle <svens@stackframe.org>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ */
+
+#include <linux/platform_device.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/rtc.h>
+#include <linux/types.h>
+#include <linux/bcd.h>
+#include <linux/rtc-ds2404.h>
+#include <linux/delay.h>
+#include <linux/gpio.h>
+#include <linux/slab.h>
+
+#include <linux/io.h>
+
+#define DS2404_STATUS_REG 0x200
+#define DS2404_CONTROL_REG 0x201
+#define DS2404_RTC_REG 0x202
+
+#define DS2404_WRITE_SCRATCHPAD_CMD 0x0f
+#define DS2404_READ_SCRATCHPAD_CMD 0xaa
+#define DS2404_COPY_SCRATCHPAD_CMD 0x55
+#define DS2404_READ_MEMORY_CMD 0xf0
+
+struct ds2404;
+
+struct ds2404_chip_ops {
+	int (*map_io)(struct ds2404 *chip, struct platform_device *pdev,
+		      struct ds2404_platform_data *pdata);
+	void (*unmap_io)(struct ds2404 *chip);
+};
+
+#define DS2404_RST	0
+#define DS2404_CLK	1
+#define DS2404_DQ	2
+
+struct ds2404_gpio {
+	const char *name;
+	unsigned int gpio;
+};
+
+struct ds2404 {
+	struct ds2404_gpio *gpio;
+	struct ds2404_chip_ops *ops;
+	struct rtc_device *rtc;
+};
+
+static struct ds2404_gpio ds2404_gpio[] = {
+	{ "RTC RST", 0 },
+	{ "RTC CLK", 0 },
+	{ "RTC DQ", 0 },
+};
+
+static int ds2404_gpio_map(struct ds2404 *chip, struct platform_device *pdev,
+			  struct ds2404_platform_data *pdata)
+{
+	int i, err;
+
+	ds2404_gpio[DS2404_RST].gpio = pdata->gpio_rst;
+	ds2404_gpio[DS2404_CLK].gpio = pdata->gpio_clk;
+	ds2404_gpio[DS2404_DQ].gpio = pdata->gpio_dq;
+
+	for (i = 0; i < ARRAY_SIZE(ds2404_gpio); i++) {
+		err = gpio_request(ds2404_gpio[i].gpio, ds2404_gpio[i].name);
+		if (err) {
+			printk(KERN_ERR "error mapping gpio %s: %d\n",
+				ds2404_gpio[i].name, err);
+			goto err_request;
+		}
+		if (i != DS2404_DQ)
+			gpio_direction_output(ds2404_gpio[i].gpio, 1);
+	}
+
+	chip->gpio = ds2404_gpio;
+	return 0;
+
+err_request:
+	while (--i >= 0)
+		gpio_free(ds2404_gpio[i].gpio);
+	return err;
+}
+
+static void ds2404_gpio_unmap(struct ds2404 *chip)
+{
+	int i;
+
+	for (i = 0; i < ARRAY_SIZE(ds2404_gpio); i++)
+		gpio_free(ds2404_gpio[i].gpio);
+}
+
+static struct ds2404_chip_ops ds2404_gpio_ops = {
+	.map_io		= ds2404_gpio_map,
+	.unmap_io	= ds2404_gpio_unmap,
+};
+
+static void ds2404_reset(struct device *dev)
+{
+	gpio_set_value(ds2404_gpio[DS2404_RST].gpio, 0);
+	udelay(1000);
+	gpio_set_value(ds2404_gpio[DS2404_RST].gpio, 1);
+	gpio_set_value(ds2404_gpio[DS2404_CLK].gpio, 0);
+	gpio_direction_output(ds2404_gpio[DS2404_DQ].gpio, 0);
+	udelay(10);
+}
+
+static void ds2404_write_byte(struct device *dev, u8 byte)
+{
+	int i;
+
+	gpio_direction_output(ds2404_gpio[DS2404_DQ].gpio, 1);
+	for (i = 0; i < 8; i++) {
+		gpio_set_value(ds2404_gpio[DS2404_DQ].gpio, byte & (1 << i));
+		udelay(10);
+		gpio_set_value(ds2404_gpio[DS2404_CLK].gpio, 1);
+		udelay(10);
+		gpio_set_value(ds2404_gpio[DS2404_CLK].gpio, 0);
+		udelay(10);
+	}
+}
+
+static u8 ds2404_read_byte(struct device *dev)
+{
+	int i;
+	u8 ret = 0;
+
+	gpio_direction_input(ds2404_gpio[DS2404_DQ].gpio);
+
+	for (i = 0; i < 8; i++) {
+		gpio_set_value(ds2404_gpio[DS2404_CLK].gpio, 0);
+		udelay(10);
+		if (gpio_get_value(ds2404_gpio[DS2404_DQ].gpio))
+			ret |= 1 << i;
+		gpio_set_value(ds2404_gpio[DS2404_CLK].gpio, 1);
+		udelay(10);
+	}
+	return ret;
+}
+
+static void ds2404_read_memory(struct device *dev, u16 offset,
+			       int length, u8 *out)
+{
+	ds2404_reset(dev);
+	ds2404_write_byte(dev, DS2404_READ_MEMORY_CMD);
+	ds2404_write_byte(dev, offset & 0xff);
+	ds2404_write_byte(dev, (offset >> 8) & 0xff);
+	while (length--)
+		*out++ = ds2404_read_byte(dev);
+}
+
+static void ds2404_write_memory(struct device *dev, u16 offset,
+				int length, u8 *out)
+{
+	int i;
+	u8 ta01, ta02, es;
+
+	ds2404_reset(dev);
+	ds2404_write_byte(dev, DS2404_WRITE_SCRATCHPAD_CMD);
+	ds2404_write_byte(dev, offset & 0xff);
+	ds2404_write_byte(dev, (offset >> 8) & 0xff);
+
+	for (i = 0; i < length; i++)
+		ds2404_write_byte(dev, out[i]);
+
+	ds2404_reset(dev);
+	ds2404_write_byte(dev, DS2404_READ_SCRATCHPAD_CMD);
+
+	ta01 = ds2404_read_byte(dev);
+	ta02 = ds2404_read_byte(dev);
+	es = ds2404_read_byte(dev);
+
+	for (i = 0; i < length; i++) {
+		if (out[i] != ds2404_read_byte(dev)) {
+			printk(KERN_ERR "read invalid data\n");
+			return;
+		}
+	}
+
+	ds2404_reset(dev);
+	ds2404_write_byte(dev, DS2404_COPY_SCRATCHPAD_CMD);
+	ds2404_write_byte(dev, ta01);
+	ds2404_write_byte(dev, ta02);
+	ds2404_write_byte(dev, es);
+
+	gpio_direction_input(ds2404_gpio[DS2404_DQ].gpio);
+	while (gpio_get_value(ds2404_gpio[DS2404_DQ].gpio))
+		;
+}
+
+static void ds2404_enable_osc(struct device *dev)
+{
+	u8 in[1] = { 0x10 }; /* enable oscillator */
+	ds2404_write_memory(dev, 0x201, 1, in);
+}
+
+static int ds2404_read_time(struct device *dev, struct rtc_time *dt)
+{
+	unsigned long time = 0;
+
+	ds2404_read_memory(dev, 0x203, 4, (u8 *)&time);
+	time = le32_to_cpu(time);
+
+	rtc_time_to_tm(time, dt);
+	return rtc_valid_tm(dt);
+}
+
+static int ds2404_set_mmss(struct device *dev, unsigned long secs)
+{
+	u32 time = cpu_to_le32(secs);
+	ds2404_write_memory(dev, 0x203, 4, (u8 *)&time);
+	return 0;
+}
+
+static const struct rtc_class_ops ds2404_rtc_ops = {
+	.read_time	= ds2404_read_time,
+	.set_mmss	= ds2404_set_mmss,
+};
+
+static int rtc_probe(struct platform_device *pdev)
+{
+	struct ds2404_platform_data *pdata = pdev->dev.platform_data;
+	struct ds2404 *chip;
+	int retval = -EBUSY;
+
+	chip = kzalloc(sizeof(struct ds2404), GFP_KERNEL);
+	if (!chip)
+		return -ENOMEM;
+
+	chip->ops = &ds2404_gpio_ops;
+
+	retval = chip->ops->map_io(chip, pdev, pdata);
+	if (retval)
+		goto err_chip;
+
+	dev_info(&pdev->dev, "using GPIOs RST:%d, CLK:%d, DQ:%d\n",
+		 chip->gpio[DS2404_RST].gpio, chip->gpio[DS2404_CLK].gpio,
+		 chip->gpio[DS2404_DQ].gpio);
+
+	platform_set_drvdata(pdev, chip);
+
+	chip->rtc = rtc_device_register("ds2404",
+				&pdev->dev, &ds2404_rtc_ops, THIS_MODULE);
+	if (IS_ERR(chip->rtc)) {
+		retval = PTR_ERR(chip->rtc);
+		goto err_io;
+	}
+
+	ds2404_enable_osc(&pdev->dev);
+	return 0;
+
+err_io:
+	chip->ops->unmap_io(chip);
+err_chip:
+	kfree(chip);
+	return retval;
+}
+
+static int rtc_remove(struct platform_device *dev)
+{
+	struct ds2404 *chip = platform_get_drvdata(dev);
+	struct rtc_device *rtc = chip->rtc;
+
+	if (rtc)
+		rtc_device_unregister(rtc);
+
+	chip->ops->unmap_io(chip);
+	kfree(chip);
+
+	return 0;
+}
+
+static struct platform_driver rtc_device_driver = {
+	.probe	= rtc_probe,
+	.remove = rtc_remove,
+	.driver = {
+		.name	= "ds2404",
+		.owner	= THIS_MODULE,
+	},
+};
+
+static __init int ds2404_init(void)
+{
+	return platform_driver_register(&rtc_device_driver);
+}
+
+static __exit void ds2404_exit(void)
+{
+	platform_driver_unregister(&rtc_device_driver);
+}
+
+module_init(ds2404_init);
+module_exit(ds2404_exit);
+
+MODULE_DESCRIPTION("DS2404 RTC");
+MODULE_AUTHOR("Sven Schnelle");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:ds2404");
diff --git a/drivers/rtc/rtc-em3027.c b/drivers/rtc/rtc-em3027.c
index 0104ea7ebe5..f6c24ce35d3 100644
--- a/drivers/rtc/rtc-em3027.c
+++ b/drivers/rtc/rtc-em3027.c
@@ -49,8 +49,17 @@ static int em3027_get_time(struct device *dev, struct rtc_time *tm)
 	unsigned char buf[7];
 
 	struct i2c_msg msgs[] = {
-		{client->addr, 0, 1, &addr},		/* setup read addr */
-		{client->addr, I2C_M_RD, 7, buf},	/* read time/date */
+		{/* setup read addr */
+			.addr = client->addr,
+			.len = 1,
+			.buf = &addr
+		},
+		{/* read time/date */
+			.addr = client->addr,
+			.flags = I2C_M_RD,
+			.len = 7,
+			.buf = buf
+		},
 	};
 
 	/* read time/date registers */
@@ -76,7 +85,9 @@ static int em3027_set_time(struct device *dev, struct rtc_time *tm)
 	unsigned char buf[8];
 
 	struct i2c_msg msg = {
-		client->addr, 0, 8, buf,	/* write time/date */
+		.addr = client->addr,
+		.len = 8,
+		.buf = buf,	/* write time/date */
 	};
 
 	buf[0] = EM3027_REG_WATCH_SEC;
diff --git a/drivers/rtc/rtc-isl1208.c b/drivers/rtc/rtc-isl1208.c
index dd2aeee6c66..26c81f23360 100644
--- a/drivers/rtc/rtc-isl1208.c
+++ b/drivers/rtc/rtc-isl1208.c
@@ -68,9 +68,17 @@ isl1208_i2c_read_regs(struct i2c_client *client, u8 reg, u8 buf[],
 {
 	u8 reg_addr[1] = { reg };
 	struct i2c_msg msgs[2] = {
-		{client->addr, 0, sizeof(reg_addr), reg_addr}
-		,
-		{client->addr, I2C_M_RD, len, buf}
+		{
+			.addr = client->addr,
+			.len = sizeof(reg_addr),
+			.buf = reg_addr
+		},
+		{
+			.addr = client->addr,
+			.flags = I2C_M_RD,
+			.len = len,
+			.buf = buf
+		}
 	};
 	int ret;
 
@@ -90,7 +98,11 @@ isl1208_i2c_set_regs(struct i2c_client *client, u8 reg, u8 const buf[],
 {
 	u8 i2c_buf[ISL1208_REG_USR2 + 2];
 	struct i2c_msg msgs[1] = {
-		{client->addr, 0, len + 1, i2c_buf}
+		{
+			.addr = client->addr,
+			.len = len + 1,
+			.buf = i2c_buf
+		}
 	};
 	int ret;
 
@@ -697,6 +709,7 @@ isl1208_remove(struct i2c_client *client)
 
 static const struct i2c_device_id isl1208_id[] = {
 	{ "isl1208", 0 },
+	{ "isl1218", 0 },
 	{ }
 };
 MODULE_DEVICE_TABLE(i2c, isl1208_id);
diff --git a/drivers/rtc/rtc-jz4740.c b/drivers/rtc/rtc-jz4740.c
index 05ab227eeff..1224182d3ea 100644
--- a/drivers/rtc/rtc-jz4740.c
+++ b/drivers/rtc/rtc-jz4740.c
@@ -42,7 +42,7 @@ struct jz4740_rtc {
 
 	struct rtc_device *rtc;
 
-	unsigned int irq;
+	int irq;
 
 	spinlock_t lock;
 };
diff --git a/drivers/rtc/rtc-m41t80.c b/drivers/rtc/rtc-m41t80.c
index 4e0f84af99a..b885bcd0890 100644
--- a/drivers/rtc/rtc-m41t80.c
+++ b/drivers/rtc/rtc-m41t80.c
@@ -213,163 +213,14 @@ static int m41t80_rtc_set_time(struct device *dev, struct rtc_time *tm)
 	return m41t80_set_datetime(to_i2c_client(dev), tm);
 }
 
-static int m41t80_rtc_alarm_irq_enable(struct device *dev, unsigned int enabled)
-{
-	struct i2c_client *client = to_i2c_client(dev);
-	int rc;
-
-	rc = i2c_smbus_read_byte_data(client, M41T80_REG_ALARM_MON);
-	if (rc < 0)
-		goto err;
-
-	if (enabled)
-		rc |= M41T80_ALMON_AFE;
-	else
-		rc &= ~M41T80_ALMON_AFE;
-
-	if (i2c_smbus_write_byte_data(client, M41T80_REG_ALARM_MON, rc) < 0)
-		goto err;
-
-	return 0;
-err:
-	return -EIO;
-}
-
-static int m41t80_rtc_set_alarm(struct device *dev, struct rtc_wkalrm *t)
-{
-	struct i2c_client *client = to_i2c_client(dev);
-	u8 wbuf[1 + M41T80_ALARM_REG_SIZE];
-	u8 *buf = &wbuf[1];
-	u8 *reg = buf - M41T80_REG_ALARM_MON;
-	u8 dt_addr[1] = { M41T80_REG_ALARM_MON };
-	struct i2c_msg msgs_in[] = {
-		{
-			.addr	= client->addr,
-			.flags	= 0,
-			.len	= 1,
-			.buf	= dt_addr,
-		},
-		{
-			.addr	= client->addr,
-			.flags	= I2C_M_RD,
-			.len	= M41T80_ALARM_REG_SIZE,
-			.buf	= buf,
-		},
-	};
-	struct i2c_msg msgs[] = {
-		{
-			.addr	= client->addr,
-			.flags	= 0,
-			.len	= 1 + M41T80_ALARM_REG_SIZE,
-			.buf	= wbuf,
-		 },
-	};
-
-	if (i2c_transfer(client->adapter, msgs_in, 2) < 0) {
-		dev_err(&client->dev, "read error\n");
-		return -EIO;