19 files changed, 1100 insertions, 91 deletions
diff --git a/drivers/rtc/Kconfig b/drivers/rtc/Kconfig
index 6cc2c0330230..fc85bf2e4a97 100644
--- a/drivers/rtc/Kconfig
+++ b/drivers/rtc/Kconfig
@@ -256,6 +256,17 @@ config RTC_DRV_S35390A
          This driver can also be built as a module. If so the module
          will be called rtc-s35390a.
+config RTC_DRV_FM3130
+        tristate "Ramtron FM3130"
+        help
+          If you say Y here you will get support for the
+          Ramtron FM3130 RTC chips.
+          Ramtron FM3130 is a chip with two separate devices inside,
+          RTC clock and FRAM. This driver provides only RTC functionality.
+          This driver can also be built as a module. If so the module
+          will be called rtc-fm3130.
 endif # I2C
 comment "SPI RTC drivers"
@@ -458,6 +469,16 @@ config RTC_DRV_VR41XX
          To compile this driver as a module, choose M here: the
          module will be called rtc-vr41xx.
+config RTC_DRV_PL030
+        tristate "ARM AMBA PL030 RTC"
+        depends on ARM_AMBA
+        help
+          If you say Y here you will get access to ARM AMBA
+          PrimeCell PL030 RTC found on certain ARM SOCs.
+          To compile this driver as a module, choose M here: the
+          module will be called rtc-pl030.
 config RTC_DRV_PL031
        tristate "ARM AMBA PL031 RTC"
        depends on ARM_AMBA
@@ -484,12 +505,13 @@ config RTC_DRV_AT91RM9200
          this is powered by the backup power supply.
 config RTC_DRV_AT91SAM9
-        tristate "AT91SAM9x"
+        tristate "AT91SAM9x/AT91CAP9"
        depends on ARCH_AT91 && !(ARCH_AT91RM9200 || ARCH_AT91X40)
        help
-          RTC driver for the Atmel AT91SAM9x internal RTT (Real Time Timer).
+          RTC driver for the Atmel AT91SAM9x and AT91CAP9 internal RTT
-          These timers are powered by the backup power supply (such as a
+          (Real Time Timer). These timers are powered by the backup power
-          small coin cell battery), but do not need to be used as RTCs.
+          supply (such as a small coin cell battery), but do not need to
+          be used as RTCs.
          (On AT91SAM9rl chips you probably want to use the dedicated RTC
          module and leave the RTT available for other uses.)
@@ -534,4 +556,12 @@ config RTC_DRV_RS5C313
        help
          If you say yes here you get support for the Ricoh RS5C313 RTC chips.
+config RTC_DRV_PPC
+       tristate "PowerPC machine dependent RTC support"
+       depends on PPC_MERGE
+       help
+         The PowerPC kernel has machine-specific functions for accessing
+         the RTC. This exposes that functionality through the generic RTC
+         class.
 endif # RTC_CLASS
diff --git a/drivers/rtc/Makefile b/drivers/rtc/Makefile
index 872f1218ff9f..b5d9d67df887 100644
--- a/drivers/rtc/Makefile
+++ b/drivers/rtc/Makefile
@@ -31,6 +31,7 @@ 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_EP93XX)    += rtc-ep93xx.o
+obj-$(CONFIG_RTC_DRV_FM3130)    += rtc-fm3130.o
 obj-$(CONFIG_RTC_DRV_ISL1208)   += rtc-isl1208.o
 obj-$(CONFIG_RTC_DRV_M41T80)    += rtc-m41t80.o
 obj-$(CONFIG_RTC_DRV_M48T59)    += rtc-m48t59.o
@@ -40,7 +41,9 @@ obj-$(CONFIG_RTC_DRV_MAX6902)	+= rtc-max6902.o
 obj-$(CONFIG_RTC_DRV_OMAP)      += rtc-omap.o
 obj-$(CONFIG_RTC_DRV_PCF8563)   += rtc-pcf8563.o
 obj-$(CONFIG_RTC_DRV_PCF8583)   += rtc-pcf8583.o
+obj-$(CONFIG_RTC_DRV_PL030)     += rtc-pl030.o
 obj-$(CONFIG_RTC_DRV_PL031)     += rtc-pl031.o
+obj-$(CONFIG_RTC_DRV_PPC)       += rtc-ppc.o
 obj-$(CONFIG_RTC_DRV_R9701)     += rtc-r9701.o
 obj-$(CONFIG_RTC_DRV_RS5C313)   += rtc-rs5c313.o
 obj-$(CONFIG_RTC_DRV_RS5C348)   += rtc-rs5c348.o
diff --git a/drivers/rtc/interface.c b/drivers/rtc/interface.c
index 7e3ad4f3b343..58b7336640ff 100644
--- a/drivers/rtc/interface.c
+++ b/drivers/rtc/interface.c
@@ -126,12 +126,25 @@ int rtc_read_alarm(struct rtc_device *rtc, struct rtc_wkalrm *alarm)
        int err;
        struct rtc_time before, now;
        int first_time = 1;
+        unsigned long t_now, t_alm;
+        enum { none, day, month, year } missing = none;
+        unsigned days;
-        /* The lower level RTC driver may not be capable of filling
+        /* The lower level RTC driver may return -1 in some fields,
-         * in all fields of the rtc_time struct (eg. rtc-cmos),
+         * creating invalid alarm->time values, for reasons like:
-         * and so might instead return -1 in some fields.
+         *
-         * We deal with that here by grabbing a current RTC timestamp
+         *   - The hardware may not be capable of filling them in;
-         * and using values from that for any missing (-1) values.
+         *     many alarms match only on time-of-day fields, not
+         *     day/month/year calendar data.
+         *
+         *   - Some hardware uses illegal values as "wildcard" match
+         *     values, which non-Linux firmware (like a BIOS) may try
+         *     to set up as e.g. "alarm 15 minutes after each hour".
+         *     Linux uses only oneshot alarms.
+         *
+         * When we see that here, we deal with it by using values from
+         * a current RTC timestamp for any missing (-1) values.  The
+         * RTC driver prevents "periodic alarm" modes.
         *
         * But this can be racey, because some fields of the RTC timestamp
         * may have wrapped in the interval since we read the RTC alarm,
@@ -174,6 +187,10 @@ int rtc_read_alarm(struct rtc_device *rtc, struct rtc_wkalrm *alarm)
                if (!alarm->enabled)
                        return 0;
+                /* full-function RTCs won't have such missing fields */
+                if (rtc_valid_tm(&alarm->time) == 0)
+                        return 0;
                /* get the "after" timestamp, to detect wrapped fields */
                err = rtc_read_time(rtc, &now);
                if (err < 0)
@@ -183,22 +200,85 @@ int rtc_read_alarm(struct rtc_device *rtc, struct rtc_wkalrm *alarm)
        } while (   before.tm_min   != now.tm_min
                 || before.tm_hour  != now.tm_hour
                 || before.tm_mon   != now.tm_mon
-                 || before.tm_year  != now.tm_year
+                 || before.tm_year  != now.tm_year);
-                 || before.tm_isdst != now.tm_isdst);
-        /* Fill in any missing alarm fields using the timestamp */
+        /* Fill in the missing alarm fields using the timestamp; we
+         * know there's at least one since alarm->time is invalid.
+         */
        if (alarm->time.tm_sec == -1)
                alarm->time.tm_sec = now.tm_sec;
        if (alarm->time.tm_min == -1)
                alarm->time.tm_min = now.tm_min;
        if (alarm->time.tm_hour == -1)
                alarm->time.tm_hour = now.tm_hour;
-        if (alarm->time.tm_mday == -1)
+        /* For simplicity, only support date rollover for now */
+        if (alarm->time.tm_mday == -1) {
                alarm->time.tm_mday = now.tm_mday;
-        if (alarm->time.tm_mon == -1)
+                missing = day;
+        }
+        if (alarm->time.tm_mon == -1) {
                alarm->time.tm_mon = now.tm_mon;
-        if (alarm->time.tm_year == -1)
+                if (missing == none)
+                        missing = month;
+        }
+        if (alarm->time.tm_year == -1) {
                alarm->time.tm_year = now.tm_year;
+                if (missing == none)
+                        missing = year;
+        }
+        /* with luck, no rollover is needed */
+        rtc_tm_to_time(&now, &t_now);
+        rtc_tm_to_time(&alarm->time, &t_alm);
+        if (t_now < t_alm)
+                goto done;
+        switch (missing) {
+        /* 24 hour rollover ... if it's now 10am Monday, an alarm that
+         * that will trigger at 5am will do so at 5am Tuesday, which
+         * could also be in the next month or year.  This is a common
+         * case, especially for PCs.
+         */
+        case day:
+                dev_dbg(&rtc->dev, "alarm rollover: %s\n", "day");
+                t_alm += 24 * 60 * 60;
+                rtc_time_to_tm(t_alm, &alarm->time);
+                break;
+        /* Month rollover ... if it's the 31th, an alarm on the 3rd will
+         * be next month.  An alarm matching on the 30th, 29th, or 28th
+         * may end up in the month after that!  Many newer PCs support
+         * this type of alarm.
+         */
+        case month:
+                dev_dbg(&rtc->dev, "alarm rollover: %s\n", "month");
+                do {
+                        if (alarm->time.tm_mon < 11)
+                                alarm->time.tm_mon++;
+                        else {
+                                alarm->time.tm_mon = 0;
+                                alarm->time.tm_year++;
+                        }
+                        days = rtc_month_days(alarm->time.tm_mon,
+                                        alarm->time.tm_year);
+                } while (days < alarm->time.tm_mday);
+                break;
+        /* Year rollover ... easy except for leap years! */
+        case year:
+                dev_dbg(&rtc->dev, "alarm rollover: %s\n", "year");
+                do {
+                        alarm->time.tm_year++;
+                } while (!rtc_valid_tm(&alarm->time));
+                break;
+        default:
+                dev_warn(&rtc->dev, "alarm rollover not handled\n");
+        }
+done:
        return 0;
 }
 EXPORT_SYMBOL_GPL(rtc_read_alarm);
diff --git a/drivers/rtc/rtc-at32ap700x.c b/drivers/rtc/rtc-at32ap700x.c
index 42244f14b41c..90b9a6503e15 100644
--- a/drivers/rtc/rtc-at32ap700x.c
+++ b/drivers/rtc/rtc-at32ap700x.c
@@ -94,8 +94,11 @@ static int at32_rtc_readalarm(struct device *dev, struct rtc_wkalrm *alrm)
 {
        struct rtc_at32ap700x *rtc = dev_get_drvdata(dev);
+        spin_lock_irq(&rtc->lock);
        rtc_time_to_tm(rtc->alarm_time, &alrm->time);
-        alrm->pending = rtc_readl(rtc, IMR) & RTC_BIT(IMR_TOPI) ? 1 : 0;
+        alrm->enabled = rtc_readl(rtc, IMR) & RTC_BIT(IMR_TOPI) ? 1 : 0;
+        alrm->pending = rtc_readl(rtc, ISR) & RTC_BIT(ISR_TOPI) ? 1 : 0;
+        spin_unlock_irq(&rtc->lock);
        return 0;
 }
@@ -119,7 +122,7 @@ static int at32_rtc_setalarm(struct device *dev, struct rtc_wkalrm *alrm)
        spin_lock_irq(&rtc->lock);
        rtc->alarm_time = alarm_unix_time;
        rtc_writel(rtc, TOP, rtc->alarm_time);
-        if (alrm->pending)
+        if (alrm->enabled)
                rtc_writel(rtc, CTRL, rtc_readl(rtc, CTRL)
                                | RTC_BIT(CTRL_TOPEN));
        else
@@ -262,6 +265,7 @@ static int __init at32_rtc_probe(struct platform_device *pdev)
        }
        platform_set_drvdata(pdev, rtc);
+        device_init_wakeup(&pdev->dev, 1);
        dev_info(&pdev->dev, "Atmel RTC for AT32AP700x at %08lx irq %ld\n",
                        (unsigned long)rtc->regs, rtc->irq);
@@ -281,6 +285,8 @@ static int __exit at32_rtc_remove(struct platform_device *pdev)
 {
        struct rtc_at32ap700x *rtc = platform_get_drvdata(pdev);
+        device_init_wakeup(&pdev->dev, 0);
        free_irq(rtc->irq, rtc);
        iounmap(rtc->regs);
        rtc_device_unregister(rtc->rtc);
diff --git a/drivers/rtc/rtc-at91rm9200.c b/drivers/rtc/rtc-at91rm9200.c
index 39e64ab1ecb7..9c3db934cc24 100644
--- a/drivers/rtc/rtc-at91rm9200.c
+++ b/drivers/rtc/rtc-at91rm9200.c
@@ -29,10 +29,6 @@
 #include <linux/completion.h>
 #include <asm/uaccess.h>
-#include <asm/rtc.h>
-#include <asm/mach/time.h>
 #include <asm/arch/at91_rtc.h>
diff --git a/drivers/rtc/rtc-at91sam9.c b/drivers/rtc/rtc-at91sam9.c
index 38d8742a4bdf..f0246ef413a4 100644
--- a/drivers/rtc/rtc-at91sam9.c
+++ b/drivers/rtc/rtc-at91sam9.c
@@ -19,7 +19,6 @@
 #include <linux/interrupt.h>
 #include <linux/ioctl.h>
-#include <asm/mach/time.h>
 #include <asm/arch/board.h>
 #include <asm/arch/at91_rtt.h>
diff --git a/drivers/rtc/rtc-cmos.c b/drivers/rtc/rtc-cmos.c
index d060a06ce05b..d7bb9bac71df 100644
--- a/drivers/rtc/rtc-cmos.c
+++ b/drivers/rtc/rtc-cmos.c
@@ -905,19 +905,7 @@ static struct pnp_driver cmos_pnp_driver = {
        .resume         = cmos_pnp_resume,
 };
-static int __init cmos_init(void)
+#endif  /* CONFIG_PNP */
-{
-        return pnp_register_driver(&cmos_pnp_driver);
-}
-module_init(cmos_init);
-static void __exit cmos_exit(void)
-{
-        pnp_unregister_driver(&cmos_pnp_driver);
-}
-module_exit(cmos_exit);
-#else   /* no PNP */
 /*----------------------------------------------------------------*/
@@ -958,20 +946,33 @@ static struct platform_driver cmos_platform_driver = {
 static int __init cmos_init(void)
 {
+#ifdef  CONFIG_PNP
+        if (pnp_platform_devices)
+                return pnp_register_driver(&cmos_pnp_driver);
+        else
+                return platform_driver_probe(&cmos_platform_driver,
+                        cmos_platform_probe);
+#else
        return platform_driver_probe(&cmos_platform_driver,
                        cmos_platform_probe);
+#endif /* CONFIG_PNP */
 }
 module_init(cmos_init);
 static void __exit cmos_exit(void)
 {
+#ifdef  CONFIG_PNP
+        if (pnp_platform_devices)
+                pnp_unregister_driver(&cmos_pnp_driver);
+        else
+                platform_driver_unregister(&cmos_platform_driver);
+#else
        platform_driver_unregister(&cmos_platform_driver);
+#endif /* CONFIG_PNP */
 }
 module_exit(cmos_exit);
-#endif  /* !PNP */
 MODULE_AUTHOR("David Brownell");
 MODULE_DESCRIPTION("Driver for PC-style 'CMOS' RTCs");
 MODULE_LICENSE("GPL");
diff --git a/drivers/rtc/rtc-dev.c b/drivers/rtc/rtc-dev.c
index 90dfa0df747a..0114a78b7cbb 100644
--- a/drivers/rtc/rtc-dev.c
+++ b/drivers/rtc/rtc-dev.c
@@ -13,6 +13,7 @@
 #include <linux/module.h>
 #include <linux/rtc.h>
+#include <linux/smp_lock.h>
 #include "rtc-core.h"
 static dev_t rtc_devt;
@@ -26,8 +27,11 @@ static int rtc_dev_open(struct inode *inode, struct file *file)
                                        struct rtc_device, char_dev);
        const struct rtc_class_ops *ops = rtc->ops;
-        if (test_and_set_bit_lock(RTC_DEV_BUSY, &rtc->flags))
+        lock_kernel();
-                return -EBUSY;
+        if (test_and_set_bit_lock(RTC_DEV_BUSY, &rtc->flags)) {
+                err = -EBUSY;
+                goto out;
+        }
        file->private_data = rtc;
@@ -37,11 +41,13 @@ static int rtc_dev_open(struct inode *inode, struct file *file)
                rtc->irq_data = 0;
                spin_unlock_irq(&rtc->irq_lock);
-                return 0;
+                goto out;
        }
        /* something has gone wrong */
        clear_bit_unlock(RTC_DEV_BUSY, &rtc->flags);
+out:
+        unlock_kernel();
        return err;
 }
diff --git a/drivers/rtc/rtc-ds1374.c b/drivers/rtc/rtc-ds1374.c
index fa2d2f8b3f4d..640acd20fdde 100644
--- a/drivers/rtc/rtc-ds1374.c
+++ b/drivers/rtc/rtc-ds1374.c
@@ -42,7 +42,7 @@
 #define DS1374_REG_TCR          0x09 /* Trickle Charge */
 static const struct i2c_device_id ds1374_id[] = {
-        { "rtc-ds1374", 0 },
+        { "ds1374", 0 },
        { }
 };
 MODULE_DEVICE_TABLE(i2c, ds1374_id);
diff --git a/drivers/rtc/rtc-fm3130.c b/drivers/rtc/rtc-fm3130.c
new file mode 100644
index 000000000000..abfdfcbaa059
--- /dev/null
+++ b/drivers/rtc/rtc-fm3130.c
@@ -0,0 +1,501 @@
+/*
+ * rtc-fm3130.c - RTC driver for Ramtron FM3130 I2C chip.
+ *
+ *  Copyright (C) 2008 Sergey Lapin
+ *  Based on ds1307 driver by James Chapman and David Brownell
+ *
+ * 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/module.h>
+#include <linux/i2c.h>
+#include <linux/rtc.h>
+#include <linux/bcd.h>
+#define FM3130_RTC_CONTROL      (0x0)
+#define FM3130_CAL_CONTROL      (0x1)
+#define FM3130_RTC_SECONDS      (0x2)
+#define FM3130_RTC_MINUTES      (0x3)
+#define FM3130_RTC_HOURS        (0x4)
+#define FM3130_RTC_DAY          (0x5)
+#define FM3130_RTC_DATE         (0x6)
+#define FM3130_RTC_MONTHS       (0x7)
+#define FM3130_RTC_YEARS        (0x8)
+#define FM3130_ALARM_SECONDS    (0x9)
+#define FM3130_ALARM_MINUTES    (0xa)
+#define FM3130_ALARM_HOURS      (0xb)
+#define FM3130_ALARM_DATE       (0xc)
+#define FM3130_ALARM_MONTHS     (0xd)
+#define FM3130_ALARM_WP_CONTROL (0xe)
+#define FM3130_CAL_CONTROL_BIT_nOSCEN (1 << 7) /* Osciallator enabled */
+#define FM3130_RTC_CONTROL_BIT_LB (1 << 7) /* Low battery */
+#define FM3130_RTC_CONTROL_BIT_AF (1 << 6) /* Alarm flag */
+#define FM3130_RTC_CONTROL_BIT_CF (1 << 5) /* Century overflow */
+#define FM3130_RTC_CONTROL_BIT_POR (1 << 4) /* Power on reset */
+#define FM3130_RTC_CONTROL_BIT_AEN (1 << 3) /* Alarm enable */
+#define FM3130_RTC_CONTROL_BIT_CAL (1 << 2) /* Calibration mode */
+#define FM3130_RTC_CONTROL_BIT_WRITE (1 << 1) /* W=1 -> write mode W=0 normal */
+#define FM3130_RTC_CONTROL_BIT_READ (1 << 0) /* R=1 -> read mode R=0 normal */
+#define FM3130_CLOCK_REGS 7
+#define FM3130_ALARM_REGS 5
+struct fm3130 {
+        u8                      reg_addr_time;
+        u8                      reg_addr_alarm;
+        u8                      regs[15];
+        struct i2c_msg          msg[4];
+        struct i2c_client       *client;
+        struct rtc_device       *rtc;
+        int                     data_valid;
+        int                     alarm;
+};
+static const struct i2c_device_id fm3130_id[] = {
+        { "fm3130", 0 },
+        { }
+};
+MODULE_DEVICE_TABLE(i2c, fm3130_id);
+#define FM3130_MODE_NORMAL              0
+#define FM3130_MODE_WRITE               1
+#define FM3130_MODE_READ                2
+static void fm3130_rtc_mode(struct device *dev, int mode)
+{
+        struct fm3130 *fm3130 = dev_get_drvdata(dev);
+        fm3130->regs[FM3130_RTC_CONTROL] =
+                i2c_smbus_read_byte_data(fm3130->client, FM3130_RTC_CONTROL);
+        switch (mode) {
+        case FM3130_MODE_NORMAL:
+                fm3130->regs[FM3130_RTC_CONTROL] &=
+                        ~(FM3130_RTC_CONTROL_BIT_WRITE |
+                        FM3130_RTC_CONTROL_BIT_READ);
+                break;
+        case FM3130_MODE_WRITE:
+                fm3130->regs[FM3130_RTC_CONTROL] |= FM3130_RTC_CONTROL_BIT_WRITE;
+                break;
+        case FM3130_MODE_READ:
+                fm3130->regs[FM3130_RTC_CONTROL] |= FM3130_RTC_CONTROL_BIT_READ;
+                break;
+        default:
+                dev_dbg(dev, "invalid mode %d\n", mode);
+                break;
+        }
+        /* Checking for alarm */
+        if (fm3130->regs[FM3130_RTC_CONTROL] & FM3130_RTC_CONTROL_BIT_AF) {
+                fm3130->alarm = 1;
+                fm3130->regs[FM3130_RTC_CONTROL] &= ~FM3130_RTC_CONTROL_BIT_AF;
+        }
+        i2c_smbus_write_byte_data(fm3130->client,
+                 FM3130_RTC_CONTROL, fm3130->regs[FM3130_RTC_CONTROL]);
+}
+static int fm3130_get_time(struct device *dev, struct rtc_time *t)
+{
+        struct fm3130 *fm3130 = dev_get_drvdata(dev);
+        int             tmp;
+        if (!fm3130->data_valid) {
+                /* We have invalid data in RTC, probably due
+                to battery faults or other problems. Return EIO
+                for now, it will allow us to set data later insted
+                of error during probing which disables device */
+                return -EIO;
+        }
+        fm3130_rtc_mode(dev, FM3130_MODE_READ);
+        /* read the RTC date and time registers all at once */
+        tmp = i2c_transfer(to_i2c_adapter(fm3130->client->dev.parent),
+                        fm3130->msg, 2);
+        if (tmp != 2) {
+                dev_err(dev, "%s error %d\n", "read", tmp);
+                return -EIO;
+        }
+        fm3130_rtc_mode(dev, FM3130_MODE_NORMAL);
+        dev_dbg(dev, "%s: %02x %02x %02x %02x %02x %02x %02x %02x"
+                        "%02x %02x %02x %02x %02x %02x %02x\n",
+                        "read",
+                        fm3130->regs[0], fm3130->regs[1],
+                        fm3130->regs[2], fm3130->regs[3],
+                        fm3130->regs[4], fm3130->regs[5],
+                        fm3130->regs[6], fm3130->regs[7],
+                        fm3130->regs[8], fm3130->regs[9],
+                        fm3130->regs[0xa], fm3130->regs[0xb],
+                        fm3130->regs[0xc], fm3130->regs[0xd],
+                        fm3130->regs[0xe]);
+        t->tm_sec = BCD2BIN(fm3130->regs[FM3130_RTC_SECONDS] & 0x7f);
+        t->tm_min = BCD2BIN(fm3130->regs[FM3130_RTC_MINUTES] & 0x7f);
+        tmp = fm3130->regs[FM3130_RTC_HOURS] & 0x3f;
+        t->tm_hour = BCD2BIN(tmp);
+        t->tm_wday = BCD2BIN(fm3130->regs[FM3130_RTC_DAY] & 0x07) - 1;
+        t->tm_mday = BCD2BIN(fm3130->regs[FM3130_RTC_DATE] & 0x3f);
+        tmp = fm3130->regs[FM3130_RTC_MONTHS] & 0x1f;
+        t->tm_mon = BCD2BIN(tmp) - 1;
+        /* assume 20YY not 19YY, and ignore CF bit */
+        t->tm_year = BCD2BIN(fm3130->regs[FM3130_RTC_YEARS]) + 100;
+        dev_dbg(dev, "%s secs=%d, mins=%d, "
+                "hours=%d, mday=%d, mon=%d, year=%d, wday=%d\n",
+                "read", t->tm_sec, t->tm_min,
+                t->tm_hour, t->tm_mday,
+                t->tm_mon, t->tm_year, t->tm_wday);
+        /* initial clock setting can be undefined */
+        return rtc_valid_tm(t);
+}
+static int fm3130_set_time(struct device *dev, struct rtc_time *t)
+{
+        struct fm3130 *fm3130 = dev_get_drvdata(dev);
+        int             tmp, i;
+        u8              *buf = fm3130->regs;
+        dev_dbg(dev, "%s secs=%d, mins=%d, "
+                "hours=%d, mday=%d, mon=%d, year=%d, wday=%d\n",
+                "write", t->tm_sec, t->tm_min,
+                t->tm_hour, t->tm_mday,
+                t->tm_mon, t->tm_year, t->tm_wday);
+        /* first register addr */
+        buf[FM3130_RTC_SECONDS] = BIN2BCD(t->tm_sec);
+        buf[FM3130_RTC_MINUTES] = BIN2BCD(t->tm_min);
+        buf[FM3130_RTC_HOURS] = BIN2BCD(t->tm_hour);
+        buf[FM3130_RTC_DAY] = BIN2BCD(t->tm_wday + 1);
+        buf[FM3130_RTC_DATE] = BIN2BCD(t->tm_mday);
+        buf[FM3130_RTC_MONTHS] = BIN2BCD(t->tm_mon + 1);
+        /* assume 20YY not 19YY */
+        tmp = t->tm_year - 100;
+        buf[FM3130_RTC_YEARS] = BIN2BCD(tmp);
+        dev_dbg(dev, "%s: %02x %02x %02x %02x %02x %02x %02x"
+                "%02x %02x %02x %02x %02x %02x %02x %02x\n",
+                "write", buf[0], buf[1], buf[2], buf[3],
+                buf[4], buf[5], buf[6], buf[7],
+                buf[8], buf[9], buf[0xa], buf[0xb],
+                buf[0xc], buf[0xd], buf[0xe]);
+        fm3130_rtc_mode(dev, FM3130_MODE_WRITE);
+        /* Writing time registers, we don't support multibyte transfers */
+        for (i = 0; i < FM3130_CLOCK_REGS; i++) {
+                i2c_smbus_write_byte_data(fm3130->client,
+                                        FM3130_RTC_SECONDS + i,
+                                        fm3130->regs[FM3130_RTC_SECONDS + i]);
+        }
+        fm3130_rtc_mode(dev, FM3130_MODE_NORMAL);
+        /* We assume here that data are valid once written */
+        if (!fm3130->data_valid)
+                fm3130->data_valid = 1;
+        return 0;
+}
+static int fm3130_read_alarm(struct device *dev, struct rtc_wkalrm *alrm)
+{
+        struct fm3130 *fm3130 = dev_get_drvdata(dev);
+        int tmp;
+        struct rtc_time *tm = &alrm->time;
+        /* read the RTC alarm registers all at once */
+        tmp = i2c_transfer(to_i2c_adapter(fm3130->client->dev.parent),
+                        &fm3130->msg[2], 2);
+        if (tmp != 2) {
+                dev_err(dev, "%s error %d\n", "read", tmp);
+                return -EIO;
+        }
+        dev_dbg(dev, "alarm read %02x %02x %02x %02x %02x\n",
+                        fm3130->regs[FM3130_ALARM_SECONDS],
+                        fm3130->regs[FM3130_ALARM_MINUTES],
+                        fm3130->regs[FM3130_ALARM_HOURS],
+                        fm3130->regs[FM3130_ALARM_DATE],
+                        fm3130->regs[FM3130_ALARM_MONTHS]);
+        tm->tm_sec      = BCD2BIN(fm3130->regs[FM3130_ALARM_SECONDS] & 0x7F);
+        tm->tm_min      = BCD2BIN(fm3130->regs[FM3130_ALARM_MINUTES] & 0x7F);
+        tm->tm_hour     = BCD2BIN(fm3130->regs[FM3130_ALARM_HOURS] & 0x3F);
+        tm->tm_mday     = BCD2BIN(fm3130->regs[FM3130_ALARM_DATE] & 0x3F);
+        tm->tm_mon      = BCD2BIN(fm3130->regs[FM3130_ALARM_MONTHS] & 0x1F);
+        if (tm->tm_mon > 0)
+                tm->tm_mon -= 1; /* RTC is 1-12, tm_mon is 0-11 */
+        dev_dbg(dev, "%s secs=%d, mins=%d, "
+                "hours=%d, mday=%d, mon=%d, year=%d, wday=%d\n",
+                "read alarm", tm->tm_sec, tm->tm_min,
+                tm->tm_hour, tm->tm_mday,
+                tm->tm_mon, tm->tm_year, tm->tm_wday);
+        return 0;
+}
+static int fm3130_set_alarm(struct device *dev, struct rtc_wkalrm *alrm)
+{
+        struct fm3130 *fm3130 = dev_get_drvdata(dev);
+        struct rtc_time *tm = &alrm->time;
+        int i;
+        dev_dbg(dev, "%s secs=%d, mins=%d, "
+                "hours=%d, mday=%d, mon=%d, year=%d, wday=%d\n",
+                "write alarm", tm->tm_sec, tm->tm_min,
+                tm->tm_hour, tm->tm_mday,
+                tm->tm_mon, tm->tm_year, tm->tm_wday);
+        if (tm->tm_sec != -1)
+                fm3130->regs[FM3130_ALARM_SECONDS] =
+                        BIN2BCD(tm->tm_sec) | 0x80;
+        if (tm->tm_min != -1)
+                fm3130->regs[FM3130_ALARM_MINUTES] =
+                        BIN2BCD(tm->tm_min) | 0x80;
+        if (tm->tm_hour != -1)
+                fm3130->regs[FM3130_ALARM_HOURS] =
+                        BIN2BCD(tm->tm_hour) | 0x80;
+        if (tm->tm_mday != -1)
+                fm3130->regs[FM3130_ALARM_DATE] =
+                        BIN2BCD(tm->tm_mday) | 0x80;
+        if (tm->tm_mon != -1)
+                fm3130->regs[FM3130_ALARM_MONTHS] =
+                        BIN2BCD(tm->tm_mon + 1) | 0x80;
+        dev_dbg(dev, "alarm write %02x %02x %02x %02x %02x\n",
+                        fm3130->regs[FM3130_ALARM_SECONDS],
+                        fm3130->regs[FM3130_ALARM_MINUTES],
+                        fm3130->regs[FM3130_ALARM_HOURS],
+                        fm3130->regs[FM3130_ALARM_DATE],
+                        fm3130->regs[FM3130_ALARM_MONTHS]);
+        /* Writing time registers, we don't support multibyte transfers */
+        for (i = 0; i < FM3130_ALARM_REGS; i++) {
+                i2c_smbus_write_byte_data(fm3130->client,
+                                        FM3130_ALARM_SECONDS + i,
+                                        fm3130->regs[FM3130_ALARM_SECONDS + i]);
+        }
+        fm3130->regs[FM3130_RTC_CONTROL] =
+                i2c_smbus_read_byte_data(fm3130->client, FM3130_RTC_CONTROL);
+        /* Checking for alarm */
+        if (fm3130->regs[FM3130_RTC_CONTROL] & FM3130_RTC_CONTROL_BIT_AF) {
+                fm3130->alarm = 1;
+                fm3130->regs[FM3130_RTC_CONTROL] &= ~FM3130_RTC_CONTROL_BIT_AF;
+        }
+        if (alrm->enabled) {
+                i2c_smbus_write_byte_data(fm3130->client, FM3130_RTC_CONTROL,
+                        (fm3130->regs[FM3130_RTC_CONTROL] &
+                                ~(FM3130_RTC_CONTROL_BIT_CAL)) |
+                                        FM3130_RTC_CONTROL_BIT_AEN);
+        } else {
+                i2c_smbus_write_byte_data(fm3130->client, FM3130_RTC_CONTROL,
+                        fm3130->regs[FM3130_RTC_CONTROL] &
+                                ~(FM3130_RTC_CONTROL_BIT_AEN));
+        }
+        return 0;
+}
+static const struct rtc_class_ops fm3130_rtc_ops = {
+        .read_time      = fm3130_get_time,
+        .set_time       = fm3130_set_time,
+        .read_alarm     = fm3130_read_alarm,
+        .set_alarm      = fm3130_set_alarm,
+};
+static struct i2c_driver fm3130_driver;
+static int __devinit fm3130_probe(struct i2c_client *client,
+                                  const struct i2c_device_id *id)
+{
+        struct fm3130           *fm3130;
+        int                     err = -ENODEV;
+        int                     tmp;
+        struct i2c_adapter      *adapter = to_i2c_adapter(client->dev.parent);
+        if (!i2c_check_functionality(adapter,
+                        I2C_FUNC_I2C | I2C_FUNC_SMBUS_WRITE_BYTE_DATA))
+                return -EIO;
+        fm3130 = kzalloc(sizeof(struct fm3130), GFP_KERNEL);
+        if (!fm3130)
+                return -ENOMEM;
+        fm3130->client = client;
+        i2c_set_clientdata(client, fm3130);
+        fm3130->reg_addr_time = FM3130_RTC_SECONDS;
+        fm3130->reg_addr_alarm = FM3130_ALARM_SECONDS;
+        /* Messages to read time */
+        fm3130->msg[0].addr = client->addr;
+        fm3130->msg[0].flags = 0;
+        fm3130->msg[0].len = 1;
+        fm3130->msg[0].buf = &fm3130->reg_addr_time;
+        fm3130->msg[1].addr = client->addr;
+        fm3130->msg[1].flags = I2C_M_RD;
+        fm3130->msg[1].len = FM3130_CLOCK_REGS;
+        fm3130->msg[1].buf = &fm3130->regs[FM3130_RTC_SECONDS];
+        /* Messages to read alarm */
+        fm3130->msg[2].addr = client->addr;
+        fm3130->msg[2].flags = 0;
+        fm3130->msg[2].len = 1;
+        fm3130->msg[2].buf = &fm3130->reg_addr_alarm;
+        fm3130->msg[3].addr = client->addr;
+        fm3130->msg[3].flags = I2C_M_RD;
+        fm3130->msg[3].len = FM3130_ALARM_REGS;
+        fm3130->msg[3].buf = &fm3130->regs[FM3130_ALARM_SECONDS];
+        fm3130->data_valid = 0;
+        tmp = i2c_transfer(adapter, fm3130->msg, 4);
+        if (tmp != 4) {
+                pr_debug("read error %d\n", tmp);
+                err = -EIO;
+                goto exit_free;
+        }
+        fm3130->regs[FM3130_RTC_CONTROL] =
+                i2c_smbus_read_byte_data(client, FM3130_RTC_CONTROL);
+        fm3130->regs[FM3130_CAL_CONTROL] =
+                i2c_smbus_read_byte_data(client, FM3130_CAL_CONTROL);
+        /* Checking for alarm */
+        if (fm3130->regs[FM3130_RTC_CONTROL] & FM3130_RTC_CONTROL_BIT_AF) {
+                fm3130->alarm = 1;
+                fm3130->regs[FM3130_RTC_CONTROL] &= ~FM3130_RTC_CONTROL_BIT_AF;
+        }
+        /* Disabling calibration mode */
+        if (fm3130->regs[FM3130_RTC_CONTROL] & FM3130_RTC_CONTROL_BIT_CAL)
+                i2c_smbus_write_byte_data(client, FM3130_RTC_CONTROL,
+                        fm3130->regs[FM3130_RTC_CONTROL] &
+                                ~(FM3130_RTC_CONTROL_BIT_CAL));
+                dev_warn(&client->dev, "Disabling calibration mode!\n");
+        /* Disabling read and write modes */
+        if (fm3130->regs[FM3130_RTC_CONTROL] & FM3130_RTC_CONTROL_BIT_WRITE ||
+            fm3130->regs[FM3130_RTC_CONTROL] & FM3130_RTC_CONTROL_BIT_READ)
+                i2c_smbus_write_byte_data(client, FM3130_RTC_CONTROL,
+                        fm3130->regs[FM3130_RTC_CONTROL] &
+                                ~(FM3130_RTC_CONTROL_BIT_READ |
+                                        FM3130_RTC_CONTROL_BIT_WRITE));
+                dev_warn(&client->dev, "Disabling READ or WRITE mode!\n");
+        /* oscillator off?  turn it on, so clock can tick. */
+        if (fm3130->regs[FM3130_CAL_CONTROL] & FM3130_CAL_CONTROL_BIT_nOSCEN)
+                i2c_smbus_write_byte_data(client, FM3130_CAL_CONTROL,
+                        fm3130->regs[FM3130_CAL_CONTROL] &
+                                ~(FM3130_CAL_CONTROL_BIT_nOSCEN));
+        /* oscillator fault?  clear flag, and warn */
+        if (fm3130->regs[FM3130_RTC_CONTROL] & FM3130_RTC_CONTROL_BIT_LB)
+                dev_warn(&client->dev, "Low battery!\n");
+        /* oscillator fault?  clear flag, and warn */
+        if (fm3130->regs[FM3130_RTC_CONTROL] & FM3130_RTC_CONTROL_BIT_POR) {
+                i2c_smbus_write_byte_data(client, FM3130_RTC_CONTROL,
+                        fm3130->regs[FM3130_RTC_CONTROL] &
+                                ~FM3130_RTC_CONTROL_BIT_POR);
+                dev_warn(&client->dev, "SET TIME!\n");
+        }
+        /* ACS is controlled by alarm */
+        i2c_smbus_write_byte_data(client, FM3130_ALARM_WP_CONTROL, 0x80);
+        /* TODO */
+        /* TODO need to sanity check alarm */
+        tmp = fm3130->regs[FM3130_RTC_SECONDS];
+        tmp = BCD2BIN(tmp & 0x7f);
+        if (tmp > 60)
+                goto exit_bad;
+        tmp = BCD2BIN(fm3130->regs[FM3130_RTC_MINUTES] & 0x7f);
+        if (tmp > 60)
+                goto exit_bad;
+        tmp = BCD2BIN(fm3130->regs[FM3130_RTC_DATE] & 0x3f);
+        if (tmp == 0 || tmp > 31)
+                goto exit_bad;
+        tmp = BCD2BIN(fm3130->regs[FM3130_RTC_MONTHS] & 0x1f);
+        if (tmp == 0 || tmp > 12)
+                goto exit_bad;
+        tmp = fm3130->regs[FM3130_RTC_HOURS];
+        fm3130->data_valid = 1;
+exit_bad:
+        if (!fm3130->data_valid)
+                dev_dbg(&client->dev,
+                                "%s: %02x %02x %02x %02x %02x %02x %02x %02x"
+                                "%02x %02x %02x %02x %02x %02x %02x\n",
+                        "bogus registers",
+                        fm3130->regs[0], fm3130->regs[1],
+                        fm3130->regs[2], fm3130->regs[3],
+                        fm3130->regs[4], fm3130->regs[5],
+                        fm3130->regs[6], fm3130->regs[7],
+                        fm3130->regs[8], fm3130->regs[9],
+                        fm3130->regs[0xa], fm3130->regs[0xb],
+                        fm3130->regs[0xc], fm3130->regs[0xd],
+                        fm3130->regs[0xe]);
+        /* We won't bail out here because we just got invalid data.
+           Time setting from u-boot doesn't work anyway */
+        fm3130->rtc = rtc_device_register(client->name, &client->dev,
+                                &fm3130_rtc_ops, THIS_MODULE);
+        if (IS_ERR(fm3130->rtc)) {
+                err = PTR_ERR(fm3130->rtc);
+                dev_err(&client->dev,
+                        "unable to register the class device\n");
+                goto exit_free;
+        }
+        return 0;
+exit_free:
+        kfree(fm3130);
+        return err;
+}
+static int __devexit fm3130_remove(struct i2c_client *client)
+{
+        struct fm3130 *fm3130 = i2c_get_clientdata(client);
+        rtc_device_unregister(fm3130->rtc);
+        kfree(fm3130);
+        return 0;
+}
+static struct i2c_driver fm3130_driver = {
+        .driver = {
+                .name   = "rtc-fm3130",
+                .owner  = THIS_MODULE,
+        },
+        .probe          = fm3130_probe,
+        .remove         = __devexit_p(fm3130_remove),
+        .id_table       = fm3130_id,
+};
+static int __init fm3130_init(void)
+{
+        return i2c_add_driver(&fm3130_driver);
+}
+module_init(fm3130_init);
+static void __exit fm3130_exit(void)
+{
+        i2c_del_driver(&fm3130_driver);
+}
+module_exit(fm3130_exit);
+MODULE_DESCRIPTION("RTC driver for FM3130");
+MODULE_AUTHOR("Sergey Lapin <slapin@ossfans.org>");
+MODULE_LICENSE("GPL");
diff --git a/drivers/rtc/rtc-m41t80.c b/drivers/rtc/rtc-m41t80.c
index a3e0880b38fb..0a19c06019be 100644
--- a/drivers/rtc/rtc-m41t80.c
+++ b/drivers/rtc/rtc-m41t80.c
@@ -17,6 +17,7 @@
 #include <linux/init.h>
 #include <linux/kernel.h>
 #include <linux/slab.h>
+#include <linux/smp_lock.h>
 #include <linux/string.h>
 #include <linux/i2c.h>
 #include <linux/rtc.h>
@@ -655,12 +656,16 @@ static int wdt_ioctl(struct inode *inode, struct file *file, unsigned int cmd,
 static int wdt_open(struct inode *inode, struct file *file)
 {
        if (MINOR(inode->i_rdev) == WATCHDOG_MINOR) {
-                if (test_and_set_bit(0, &wdt_is_open))
+                lock_kernel();
+                if (test_and_set_bit(0, &wdt_is_open)) {
+                        unlock_kernel();
                        return -EBUSY;
+                }
                /*
                 *      Activate
                 */
                wdt_is_open = 1;
+                unlock_kernel();
                return 0;
        }
        return -ENODEV;
diff --git a/drivers/rtc/rtc-omap.c b/drivers/rtc/rtc-omap.c
index 58f81c774943..eb23d8423f42 100644
--- a/drivers/rtc/rtc-omap.c
+++ b/drivers/rtc/rtc-omap.c
@@ -22,7 +22,6 @@
 #include <linux/platform_device.h>
 #include <asm/io.h>
-#include <asm/mach/time.h>
 /* The OMAP1 RTC is a year/month/day/hours/minutes/seconds BCD clock
diff --git a/drivers/rtc/rtc-pcf8563.c b/drivers/rtc/rtc-pcf8563.c
index 0fc4c3630780..748a502a6355 100644
--- a/drivers/rtc/rtc-pcf8563.c
+++ b/drivers/rtc/rtc-pcf8563.c
@@ -302,6 +302,7 @@ static int pcf8563_remove(struct i2c_client *client)
 static const struct i2c_device_id pcf8563_id[] = {
        { "pcf8563", 0 },
+        { "rtc8564", 0 },
        { }
 };
 MODULE_DEVICE_TABLE(i2c, pcf8563_id);
diff --git a/drivers/rtc/rtc-pl030.c b/drivers/rtc/rtc-pl030.c
new file mode 100644
index 000000000000..8448eeb9d675
--- /dev/null
+++ b/drivers/rtc/rtc-pl030.c
@@ -0,0 +1,217 @@
+/*
+ *  linux/drivers/rtc/rtc-pl030.c
+ *
+ *  Copyright (C) 2000-2001 Deep Blue Solutions Ltd.
+ *
+ * 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/module.h>
+#include <linux/rtc.h>
+#include <linux/init.h>
+#include <linux/interrupt.h>
+#include <linux/amba/bus.h>
+#include <linux/io.h>
+#define RTC_DR          (0)
+#define RTC_MR          (4)
+#define RTC_STAT        (8)
+#define RTC_EOI         (8)
+#define RTC_LR          (12)
+#define RTC_CR          (16)
+#define RTC_CR_MIE      (1 << 0)
+struct pl030_rtc {
+        struct rtc_device       *rtc;
+        void __iomem            *base;
+};
+static irqreturn_t pl030_interrupt(int irq, void *dev_id)
+{
+        struct pl030_rtc *rtc = dev_id;
+        writel(0, rtc->base + RTC_EOI);
+        return IRQ_HANDLED;
+}
+static int pl030_open(struct device *dev)
+{
+        return 0;
+}
+static void pl030_release(struct device *dev)
+{
+}
+static int pl030_ioctl(struct device *dev, unsigned int cmd, unsigned long arg)
+{
+        return -ENOIOCTLCMD;
+}
+static int pl030_read_alarm(struct device *dev, struct rtc_wkalrm *alrm)
+{
+        struct pl030_rtc *rtc = dev_get_drvdata(dev);
+        rtc_time_to_tm(readl(rtc->base + RTC_MR), &alrm->time);
+        return 0;
+}
+static int pl030_set_alarm(struct device *dev, struct rtc_wkalrm *alrm)
+{
+        struct pl030_rtc *rtc = dev_get_drvdata(dev);
+        unsigned long time;
+        int ret;
+        /*
+         * At the moment, we can only deal with non-wildcarded alarm times.
+         */
+        ret = rtc_valid_tm(&alrm->time);
+        if (ret == 0)
+                ret = rtc_tm_to_time(&alrm->time, &time);
+        if (ret == 0)
+                writel(time, rtc->base + RTC_MR);
+        return ret;
+}
+static int pl030_read_time(struct device *dev, struct rtc_time *tm)
+{
+        struct pl030_rtc *rtc = dev_get_drvdata(dev);
+        rtc_time_to_tm(readl(rtc->base + RTC_DR), tm);
+        return 0;
+}
+/*
+ * Set the RTC time.  Unfortunately, we can't accurately set
+ * the point at which the counter updates.
+ *
+ * Also, since RTC_LR is transferred to RTC_CR on next rising
+ * edge of the 1Hz clock, we must write the time one second
+ * in advance.
+ */
+static int pl030_set_time(struct device *dev, struct rtc_time *tm)
+{
+        struct pl030_rtc *rtc = dev_get_drvdata(dev);
+        unsigned long time;
+        int ret;
+        ret = rtc_tm_to_time(tm, &time);
+        if (ret == 0)
+                writel(time + 1, rtc->base + RTC_LR);
+        return ret;
+}
+static const struct rtc_class_ops pl030_ops = {
+        .open           = pl030_open,
+        .release        = pl030_release,
+        .ioctl          = pl030_ioctl,
+        .read_time      = pl030_read_time,
+        .set_time       = pl030_set_time,
+        .read_alarm     = pl030_read_alarm,
+        .set_alarm      = pl030_set_alarm,
+};
+static int pl030_probe(struct amba_device *dev, void *id)
+{
+        struct pl030_rtc *rtc;
+        int ret;
+        ret = amba_request_regions(dev, NULL);
+        if (ret)
+                goto err_req;
+        rtc = kmalloc(sizeof(*rtc), GFP_KERNEL);
+        if (!rtc) {
+                ret = -ENOMEM;
+                goto err_rtc;
+        }
+        rtc->base = ioremap(dev->res.start, SZ_4K);
+        if (!rtc->base) {
+                ret = -ENOMEM;
+                goto err_map;
+        }
+        __raw_writel(0, rtc->base + RTC_CR);
+        __raw_writel(0, rtc->base + RTC_EOI);
+        amba_set_drvdata(dev, rtc);
+        ret = request_irq(dev->irq[0], pl030_interrupt, IRQF_DISABLED,
+                          "rtc-pl030", rtc);
+        if (ret)
+                goto err_irq;
+        rtc->rtc = rtc_device_register("pl030", &dev->dev, &pl030_ops,
+                                       THIS_MODULE);
+        if (IS_ERR(rtc->rtc)) {
+                ret = PTR_ERR(rtc->rtc);
+                goto err_reg;
+        }
+        return 0;
+ err_reg:
+        free_irq(dev->irq[0], rtc);
+ err_irq:
+        iounmap(rtc->base);
+ err_map:
+        kfree(rtc);
+ err_rtc:
+        amba_release_regions(dev);
+ err_req:
+        return ret;
+}
+static int pl030_remove(struct amba_device *dev)
+{
+        struct pl030_rtc *rtc = amba_get_drvdata(dev);
+        amba_set_drvdata(dev, NULL);
+        writel(0, rtc->base + RTC_CR);
+        free_irq(dev->irq[0], rtc);
+        rtc_device_unregister(rtc->rtc);
+        iounmap(rtc->base);
+        kfree(rtc);
+        amba_release_regions(dev);
+        return 0;
+}
+static struct amba_id pl030_ids[] = {
+        {
+                .id     = 0x00041030,
+                .mask   = 0x000fffff,
+        },
+        { 0, 0 },
+};
+static struct amba_driver pl030_driver = {
+        .drv            = {
+                .name   = "rtc-pl030",
+        },
+        .probe          = pl030_probe,
+        .remove         = pl030_remove,
+        .id_table       = pl030_ids,
+};
+static int __init pl030_init(void)
+{
+        return amba_driver_register(&pl030_driver);
+}
+static void __exit pl030_exit(void)
+{
+        amba_driver_unregister(&pl030_driver);
+}
+module_init(pl030_init);
+module_exit(pl030_exit);
+MODULE_AUTHOR("Russell King <rmk@arm.linux.org.uk>");
+MODULE_DESCRIPTION("ARM AMBA PL030 RTC Driver");
+MODULE_LICENSE("GPL");
diff --git a/drivers/rtc/rtc-pl031.c b/drivers/rtc/rtc-pl031.c
index 2fd49edcc712..08b4610ec5a6 100644
--- a/drivers/rtc/rtc-pl031.c
+++ b/drivers/rtc/rtc-pl031.c
@@ -12,23 +12,12 @@
 * as published by the Free Software Foundation; either version
 * 2 of the License, or (at your option) any later version.
 */
-#include <linux/platform_device.h>
 #include <linux/module.h>
 #include <linux/rtc.h>
 #include <linux/init.h>
-#include <linux/fs.h>
 #include <linux/interrupt.h>
-#include <linux/string.h>
-#include <linux/pm.h>
-#include <linux/bitops.h>
 #include <linux/amba/bus.h>
+#include <linux/io.h>
-#include <asm/io.h>
-#include <asm/hardware.h>
-#include <asm/irq.h>
-#include <asm/rtc.h>
 /*
 * Register definitions
@@ -142,13 +131,12 @@ static int pl031_remove(struct amba_device *adev)
 {
        struct pl031_local *ldata = dev_get_drvdata(&adev->dev);
-        if (ldata) {
+        amba_set_drvdata(adev, NULL);
-                dev_set_drvdata(&adev->dev, NULL);
+        free_irq(adev->irq[0], ldata->rtc);
-                free_irq(adev->irq[0], ldata->rtc);
+        rtc_device_unregister(ldata->rtc);
-                rtc_device_unregister(ldata->rtc);
+        iounmap(ldata->base);
-                iounmap(ldata->base);
+        kfree(ldata);
-                kfree(ldata);
+        amba_release_regions(adev);
-        }
        return 0;
 }
@@ -158,13 +146,15 @@ static int pl031_probe(struct amba_device *adev, void *id)
        int ret;
        struct pl031_local *ldata;
+        ret = amba_request_regions(adev, NULL);
+        if (ret)
+                goto err_req;
        ldata = kmalloc(sizeof(struct pl031_local), GFP_KERNEL);
        if (!ldata) {
                ret = -ENOMEM;
                goto out;
        }
-        dev_set_drvdata(&adev->dev, ldata);
        ldata->base = ioremap(adev->res.start,
                              adev->res.end - adev->res.start + 1);
@@ -173,6 +163,8 @@ static int pl031_probe(struct amba_device *adev, void *id)
                goto out_no_remap;
        }
+        amba_set_drvdata(adev, ldata);
        if (request_irq(adev->irq[0], pl031_interrupt, IRQF_DISABLED,
                        "rtc-pl031", ldata->rtc)) {
                ret = -EIO;
@@ -192,10 +184,12 @@ out_no_rtc:
        free_irq(adev->irq[0], ldata->rtc);
 out_no_irq:
        iounmap(ldata->base);
+        amba_set_drvdata(adev, NULL);
 out_no_remap:
-        dev_set_drvdata(&adev->dev, NULL);
        kfree(ldata);
 out:
+        amba_release_regions(adev);
+err_req:
        return ret;
 }
diff --git a/drivers/rtc/rtc-ppc.c b/drivers/rtc/rtc-ppc.c
new file mode 100644
index 000000000000..c8e97e25ef7e
--- /dev/null
+++ b/drivers/rtc/rtc-ppc.c
@@ -0,0 +1,69 @@
+/*
+ * RTC driver for ppc_md RTC functions
+ *
+ * © 2007 Red Hat, Inc.
+ *
+ * Author: David Woodhouse <dwmw2@infradead.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/module.h>
+#include <linux/err.h>
+#include <linux/rtc.h>
+#include <linux/platform_device.h>
+#include <asm/machdep.h>
+static int ppc_rtc_read_time(struct device *dev, struct rtc_time *tm)
+{
+        ppc_md.get_rtc_time(tm);
+        return 0;
+}
+static int ppc_rtc_set_time(struct device *dev, struct rtc_time *tm)
+{
+        return ppc_md.set_rtc_time(tm);
+}
+static const struct rtc_class_ops ppc_rtc_ops = {
+        .set_time = ppc_rtc_set_time,
+        .read_time = ppc_rtc_read_time,
+};
+static struct rtc_device *rtc;
+static struct platform_device *ppc_rtc_pdev;
+static int __init ppc_rtc_init(void)
+{
+        if (!ppc_md.get_rtc_time || !ppc_md.set_rtc_time)
+                return -ENODEV;
+        ppc_rtc_pdev = platform_device_register_simple("ppc-rtc", 0, NULL, 0);
+        if (IS_ERR(ppc_rtc_pdev))
+                return PTR_ERR(ppc_rtc_pdev);
+        rtc = rtc_device_register("ppc_md", &ppc_rtc_pdev->dev,
+                                  &ppc_rtc_ops, THIS_MODULE);
+        if (IS_ERR(rtc)) {
+                platform_device_unregister(ppc_rtc_pdev);
+                return PTR_ERR(rtc);
+        }
+        return 0;
+}
+static void __exit ppc_rtc_exit(void)
+{
+        rtc_device_unregister(rtc);
+        platform_device_unregister(ppc_rtc_pdev);
+}
+module_init(ppc_rtc_init);
+module_exit(ppc_rtc_exit);
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("David Woodhouse <dwmw2@infradead.org>");
+MODULE_DESCRIPTION("Generic RTC class driver for PowerPC");
diff --git a/drivers/rtc/rtc-s3c.c b/drivers/rtc/rtc-s3c.c
index f26e0cad8f16..fed86e507fdf 100644
--- a/drivers/rtc/rtc-s3c.c
+++ b/drivers/rtc/rtc-s3c.c
@@ -26,10 +26,6 @@
 #include <asm/uaccess.h>
 #include <asm/io.h>
 #include <asm/irq.h>
-#include <asm/rtc.h>
-#include <asm/mach/time.h>
 #include <asm/plat-s3c/regs-rtc.h>
 /* I have yet to find an S3C implementation with more than one
diff --git a/drivers/rtc/rtc-sa1100.c b/drivers/rtc/rtc-sa1100.c
index 82f62d25f921..f47294c60148 100644
--- a/drivers/rtc/rtc-sa1100.c
+++ b/drivers/rtc/rtc-sa1100.c
@@ -33,7 +33,6 @@
 #include <asm/hardware.h>
 #include <asm/irq.h>
-#include <asm/rtc.h>
 #ifdef CONFIG_ARCH_PXA
 #include <asm/arch/pxa-regs.h>
@@ -47,6 +46,42 @@ static unsigned long rtc_freq = 1024;
 static struct rtc_time rtc_alarm;
 static DEFINE_SPINLOCK(sa1100_rtc_lock);
+static inline int rtc_periodic_alarm(struct rtc_time *tm)
+{
+        return  (tm->tm_year == -1) ||
+                ((unsigned)tm->tm_mon >= 12) ||
+                ((unsigned)(tm->tm_mday - 1) >= 31) ||
+                ((unsigned)tm->tm_hour > 23) ||
+                ((unsigned)tm->tm_min > 59) ||
+                ((unsigned)tm->tm_sec > 59);
+}
+/*
+ * Calculate the next alarm time given the requested alarm time mask
+ * and the current time.
+ */
+static void rtc_next_alarm_time(struct rtc_time *next, struct rtc_time *now, struct rtc_time *alrm)
+{
+        unsigned long next_time;
+        unsigned long now_time;
+        next->tm_year = now->tm_year;
+        next->tm_mon = now->tm_mon;
+        next->tm_mday = now->tm_mday;
+        next->tm_hour = alrm->tm_hour;
+        next->tm_min = alrm->tm_min;
+        next->tm_sec = alrm->tm_sec;
+        rtc_tm_to_time(now, &now_time);
+        rtc_tm_to_time(next, &next_time);
+        if (next_time < now_time) {
+                /* Advance one day */
+                next_time += 60 * 60 * 24;
+                rtc_time_to_tm(next_time, next);
+        }
+}
 static int rtc_update_alarm(struct rtc_time *alrm)
 {
        struct rtc_time alarm_tm, now_tm;
@@ -331,14 +366,14 @@ static int sa1100_rtc_probe(struct platform_device *pdev)
                RCNR = 0;
        }
+        device_init_wakeup(&pdev->dev, 1);
        rtc = rtc_device_register(pdev->name, &pdev->dev, &sa1100_rtc_ops,
                                THIS_MODULE);
        if (IS_ERR(rtc))
                return PTR_ERR(rtc);
-        device_init_wakeup(&pdev->dev, 1);
        platform_set_drvdata(pdev, rtc);
        return 0;
diff --git a/drivers/rtc/rtc-x1205.c b/drivers/rtc/rtc-x1205.c
index eaf55945f21b..7dcfba1bbfe1 100644
--- a/drivers/rtc/rtc-x1205.c
+++ b/drivers/rtc/rtc-x1205.c
@@ -71,6 +71,7 @@
 #define X1205_SR_RTCF           0x01    /* Clock failure */
 #define X1205_SR_WEL            0x02    /* Write Enable Latch */
 #define X1205_SR_RWEL           0x04    /* Register Write Enable */
+#define X1205_SR_AL0            0x20    /* Alarm 0 match */
 #define X1205_DTR_DTR0          0x01
 #define X1205_DTR_DTR1          0x02
@@ -78,6 +79,8 @@
 #define X1205_HR_MIL            0x80    /* Set in ccr.hour for 24 hr mode */
+#define X1205_INT_AL0E          0x20    /* Alarm 0 enable */
 static struct i2c_driver x1205_driver;
 /*
@@ -89,8 +92,8 @@ static int x1205_get_datetime(struct i2c_client *client, struct rtc_time *tm,
                                unsigned char reg_base)
 {
        unsigned char dt_addr[2] = { 0, reg_base };
        unsigned char buf[8];
+        int i;
        struct i2c_msg msgs[] = {
                { client->addr, 0, 2, dt_addr },        /* setup read ptr */
@@ -98,7 +101,7 @@ static int x1205_get_datetime(struct i2c_client *client, struct rtc_time *tm,
        };
        /* read date registers */
-        if ((i2c_transfer(client->adapter, &msgs[0], 2)) != 2) {
+        if (i2c_transfer(client->adapter, &msgs[0], 2) != 2) {
                dev_err(&client->dev, "%s: read error\n", __func__);
                return -EIO;
        }
@@ -110,6 +113,11 @@ static int x1205_get_datetime(struct i2c_client *client, struct rtc_time *tm,
                buf[0], buf[1], buf[2], buf[3],
                buf[4], buf[5], buf[6], buf[7]);
+        /* Mask out the enable bits if these are alarm registers */
+        if (reg_base < X1205_CCR_BASE)
+                for (i = 0; i <= 4; i++)
+                        buf[i] &= 0x7F;
        tm->tm_sec = BCD2BIN(buf[CCR_SEC]);
        tm->tm_min = BCD2BIN(buf[CCR_MIN]);
        tm->tm_hour = BCD2BIN(buf[CCR_HOUR] & 0x3F); /* hr is 0-23 */
@@ -138,7 +146,7 @@ static int x1205_get_status(struct i2c_client *client, unsigned char *sr)
        };
        /* read status register */
-        if ((i2c_transfer(client->adapter, &msgs[0], 2)) != 2) {
+        if (i2c_transfer(client->adapter, &msgs[0], 2) != 2) {
                dev_err(&client->dev, "%s: read error\n", __func__);
                return -EIO;
        }
@@ -147,10 +155,11 @@ static int x1205_get_status(struct i2c_client *client, unsigned char *sr)
 }
 static int x1205_set_datetime(struct i2c_client *client, struct rtc_time *tm,
-                                int datetoo, u8 reg_base)
+                        int datetoo, u8 reg_base, unsigned char alm_enable)
 {
-        int i, xfer;
+        int i, xfer, nbytes;
        unsigned char buf[8];
+        unsigned char rdata[10] = { 0, reg_base };
        static const unsigned char wel[3] = { 0, X1205_REG_SR,
                                                X1205_SR_WEL };
@@ -189,6 +198,11 @@ static int x1205_set_datetime(struct i2c_client *client, struct rtc_time *tm,
                buf[CCR_Y2K] = BIN2BCD(tm->tm_year / 100);
        }
+        /* If writing alarm registers, set compare bits on registers 0-4 */
+        if (reg_base < X1205_CCR_BASE)
+                for (i = 0; i <= 4; i++)
+                        buf[i] |= 0x80;
        /* this sequence is required to unlock the chip */
        if ((xfer = i2c_master_send(client, wel, 3)) != 3) {
                dev_err(&client->dev, "%s: wel - %d\n", __func__, xfer);
@@ -200,19 +214,57 @@ static int x1205_set_datetime(struct i2c_client *client, struct rtc_time *tm,
                return -EIO;
        }
        /* write register's data */
-        for (i = 0; i < (datetoo ? 8 : 3); i++) {
+        if (datetoo)
-                unsigned char rdata[3] = { 0, reg_base + i, buf[i] };
+                nbytes = 8;
+        else
+                nbytes = 3;
+        for (i = 0; i < nbytes; i++)
+                rdata[2+i] = buf[i];
+        xfer = i2c_master_send(client, rdata, nbytes+2);
+        if (xfer != nbytes+2) {
+                dev_err(&client->dev,
+                        "%s: result=%d addr=%02x, data=%02x\n",
+                        __func__,
+                         xfer, rdata[1], rdata[2]);
+                return -EIO;
+        }
+        /* If we wrote to the nonvolatile region, wait 10msec for write cycle*/
+        if (reg_base < X1205_CCR_BASE) {
+                unsigned char al0e[3] = { 0, X1205_REG_INT, 0 };
+                msleep(10);
-                xfer = i2c_master_send(client, rdata, 3);
+                /* ...and set or clear the AL0E bit in the INT register */
+                /* Need to set RWEL again as the write has cleared it */
+                xfer = i2c_master_send(client, rwel, 3);
                if (xfer != 3) {
                        dev_err(&client->dev,
-                                "%s: xfer=%d addr=%02x, data=%02x\n",
+                                "%s: aloe rwel - %d\n",
                                __func__,
-                                 xfer, rdata[1], rdata[2]);
+                                xfer);
+                        return -EIO;
+                }
+                if (alm_enable)
+                        al0e[2] = X1205_INT_AL0E;
+                xfer = i2c_master_send(client, al0e, 3);
+                if (xfer != 3) {
+                        dev_err(&client->dev,
+                                "%s: al0e - %d\n",
+                                __func__,
+                                xfer);
                        return -EIO;
                }
-        };
+                /* and wait 10msec again for this write to complete */
+                msleep(10);
+        }
        /* disable further writes */
        if ((xfer = i2c_master_send(client, diswe, 3)) != 3) {
@@ -230,9 +282,9 @@ static int x1205_fix_osc(struct i2c_client *client)
        tm.tm_hour = tm.tm_min = tm.tm_sec = 0;
-        if ((err = x1205_set_datetime(client, &tm, 0, X1205_CCR_BASE)) < 0)
+        err = x1205_set_datetime(client, &tm, 0, X1205_CCR_BASE, 0);
-                dev_err(&client->dev,
+        if (err < 0)
-                        "unable to restart the oscillator\n");
+                dev_err(&client->dev, "unable to restart the oscillator\n");
        return err;
 }
@@ -248,7 +300,7 @@ static int x1205_get_dtrim(struct i2c_client *client, int *trim)
        };
        /* read dtr register */
-        if ((i2c_transfer(client->adapter, &msgs[0], 2)) != 2) {
+        if (i2c_transfer(client->adapter, &msgs[0], 2) != 2) {
                dev_err(&client->dev, "%s: read error\n", __func__);
                return -EIO;
        }
@@ -280,7 +332,7 @@ static int x1205_get_atrim(struct i2c_client *client, int *trim)
        };
        /* read atr register */
-        if ((i2c_transfer(client->adapter, &msgs[0], 2)) != 2) {
+        if (i2c_transfer(client->adapter, &msgs[0], 2) != 2) {
                dev_err(&client->dev, "%s: read error\n", __func__);
                return -EIO;
        }
@@ -403,14 +455,33 @@ static int x1205_validate_client(struct i2c_client *client)
 static int x1205_rtc_read_alarm(struct device *dev, struct rtc_wkalrm *alrm)
 {
-        return x1205_get_datetime(to_i2c_client(dev),
+        int err;
-                &alrm->time, X1205_ALM0_BASE);
+        unsigned char intreg, status;
+        static unsigned char int_addr[2] = { 0, X1205_REG_INT };
+        struct i2c_client *client = to_i2c_client(dev);
+        struct i2c_msg msgs[] = {
+                { client->addr, 0, 2, int_addr },        /* setup read ptr */
+                { client->addr, I2C_M_RD, 1, &intreg },  /* read INT register */
+        };
+        /* read interrupt register and status register */
+        if (i2c_transfer(client->adapter, &msgs[0], 2) != 2) {
+                dev_err(&client->dev, "%s: read error\n", __func__);
+                return -EIO;
+        }
+        err = x1205_get_status(client, &status);
+        if (err == 0) {
+                alrm->pending = (status & X1205_SR_AL0) ? 1 : 0;
+                alrm->enabled = (intreg & X1205_INT_AL0E) ? 1 : 0;
+                err = x1205_get_datetime(client, &alrm->time, X1205_ALM0_BASE);
+        }
+        return err;
 }
 static int x1205_rtc_set_alarm(struct device *dev, struct rtc_wkalrm *alrm)
 {
        return x1205_set_datetime(to_i2c_client(dev),
-                &alrm->time, 1, X1205_ALM0_BASE);
+                &alrm->time, 1, X1205_ALM0_BASE, alrm->enabled);
 }
 static int x1205_rtc_read_time(struct device *dev, struct rtc_time *tm)
@@ -422,7 +493,7 @@ static int x1205_rtc_read_time(struct device *dev, struct rtc_time *tm)
 static int x1205_rtc_set_time(struct device *dev, struct rtc_time *tm)
 {
        return x1205_set_datetime(to_i2c_client(dev),
-                tm, 1, X1205_CCR_BASE);
+                tm, 1, X1205_CCR_BASE, 0);
 }
 static int x1205_rtc_proc(struct device *dev, struct seq_file *seq)