Merge git://git.kernel.org/pub/scm/linux/kernel/git/kyle/rtc-parisc

* git://git.kernel.org/pub/scm/linux/kernel/git/kyle/rtc-parisc:
  powerpc/ps3: Add rtc-ps3
  powerpc: Hook up rtc-generic, and kill rtc-ppc
  m68k: Hook up rtc-generic
  parisc: rtc: Rename rtc-parisc to rtc-generic
  parisc: rtc: Add missing module alias
  parisc: rtc: platform_driver_probe() fixups
  parisc: rtc: get_rtc_time() returns unsigned int

16 files changed, 267 insertions, 195 deletions

diff --git a/arch/m68k/include/asm/rtc.h b/arch/m68k/include/asm/rtc.h
index 5d3e03859844..a4d08ea122ee 100644
--- a/arch/m68k/include/asm/rtc.h
+++ b/arch/m68k/include/asm/rtc.h
@@ -36,13 +36,16 @@ static inline unsigned int get_rtc_time(struct rtc_time *time)
          * 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.
          */
-        mach_hwclk(0, time);
+        if (mach_hwclk)
+                mach_hwclk(0, time);
         return RTC_24H;
 }
 
 static inline int set_rtc_time(struct rtc_time *time)
 {
-        return mach_hwclk(1, time);
+        if (mach_hwclk)
+                return mach_hwclk(1, time);
+        return -EINVAL;
 }
 
 static inline unsigned int get_rtc_ss(void)
diff --git a/arch/m68k/kernel/time.c b/arch/m68k/kernel/time.c
index 7db41594d7b6..54d980795fc4 100644
--- a/arch/m68k/kernel/time.c
+++ b/arch/m68k/kernel/time.c
@@ -18,6 +18,7 @@
 #include <linux/string.h>
 #include <linux/mm.h>
 #include <linux/rtc.h>
+#include <linux/platform_device.h>
 
 #include <asm/machdep.h>
 #include <asm/io.h>
@@ -159,3 +160,20 @@ int do_settimeofday(struct timespec *tv)
 }
 
 EXPORT_SYMBOL(do_settimeofday);
+
+
+static int __init rtc_init(void)
+{
+        struct platform_device *pdev;
+
+        if (!mach_hwclk)
+                return -ENODEV;
+
+        pdev = platform_device_register_simple("rtc-generic", -1, NULL, 0);
+        if (IS_ERR(pdev))
+                return PTR_ERR(pdev);
+
+        return 0;
+}
+
+module_init(rtc_init);
diff --git a/arch/parisc/Kconfig b/arch/parisc/Kconfig
index aacf11d33723..378b64944dc0 100644
--- a/arch/parisc/Kconfig
+++ b/arch/parisc/Kconfig
@@ -10,7 +10,7 @@ config PARISC
         select HAVE_IDE
         select HAVE_OPROFILE
         select RTC_CLASS
-        select RTC_DRV_PARISC
+        select RTC_DRV_GENERIC
         select INIT_ALL_POSSIBLE
         help
           The PA-RISC microprocessor is designed by Hewlett-Packard and used
diff --git a/arch/parisc/kernel/time.c b/arch/parisc/kernel/time.c
index e75cae6072c5..86a99d02234f 100644
--- a/arch/parisc/kernel/time.c
+++ b/arch/parisc/kernel/time.c
@@ -216,14 +216,14 @@ void __init start_cpu_itimer(void)
         per_cpu(cpu_data, cpu).it_value = next_tick;
 }
 
-static struct platform_device rtc_parisc_dev = {
-        .name = "rtc-parisc",
+static struct platform_device rtc_generic_dev = {
+        .name = "rtc-generic",
         .id = -1,
 };
 
 static int __init rtc_init(void)
 {
-        if (platform_device_register(&rtc_parisc_dev) < 0)
+        if (platform_device_register(&rtc_generic_dev) < 0)
                 printk(KERN_ERR "unable to register rtc device...\n");
 
         /* not necessarily an error */
diff --git a/arch/powerpc/include/asm/ps3.h b/arch/powerpc/include/asm/ps3.h
index 67f1812698d2..cdb6fd814de8 100644
--- a/arch/powerpc/include/asm/ps3.h
+++ b/arch/powerpc/include/asm/ps3.h
@@ -50,6 +50,9 @@ enum ps3_param_av_multi_out {
 
 enum ps3_param_av_multi_out ps3_os_area_get_av_multi_out(void);
 
+extern u64 ps3_os_area_get_rtc_diff(void);
+extern void ps3_os_area_set_rtc_diff(u64 rtc_diff);
+
 /* dma routines */
 
 enum ps3_dma_page_size {
diff --git a/arch/powerpc/kernel/time.c b/arch/powerpc/kernel/time.c
index c9564031a2a9..926ea864e34f 100644
--- a/arch/powerpc/kernel/time.c
+++ b/arch/powerpc/kernel/time.c
@@ -1127,3 +1127,19 @@ void div128_by_32(u64 dividend_high, u64 dividend_low,
         dr->result_low  = ((u64)y << 32) + z;
 
 }
+
+static int __init rtc_init(void)
+{
+        struct platform_device *pdev;
+
+        if (!ppc_md.get_rtc_time)
+                return -ENODEV;
+
+        pdev = platform_device_register_simple("rtc-generic", -1, NULL, 0);
+        if (IS_ERR(pdev))
+                return PTR_ERR(pdev);
+
+        return 0;
+}
+
+module_init(rtc_init);
diff --git a/arch/powerpc/platforms/ps3/os-area.c b/arch/powerpc/platforms/ps3/os-area.c
index e1c83c23b435..86e392b1b049 100644
--- a/arch/powerpc/platforms/ps3/os-area.c
+++ b/arch/powerpc/platforms/ps3/os-area.c
@@ -808,6 +808,7 @@ u64 ps3_os_area_get_rtc_diff(void)
 {
         return saved_params.rtc_diff;
 }
+EXPORT_SYMBOL(ps3_os_area_get_rtc_diff);
 
 /**
  * ps3_os_area_set_rtc_diff - Set the rtc diff value.
@@ -823,6 +824,7 @@ void ps3_os_area_set_rtc_diff(u64 rtc_diff)
                 os_area_queue_work();
         }
 }
+EXPORT_SYMBOL(ps3_os_area_set_rtc_diff);
 
 /**
  * ps3_os_area_get_av_multi_out - Returns the default video mode.
diff --git a/arch/powerpc/platforms/ps3/platform.h b/arch/powerpc/platforms/ps3/platform.h
index 235c13ebacd9..136aa0637d9c 100644
--- a/arch/powerpc/platforms/ps3/platform.h
+++ b/arch/powerpc/platforms/ps3/platform.h
@@ -64,8 +64,6 @@ int ps3_set_rtc_time(struct rtc_time *time);
 
 void __init ps3_os_area_save_params(void);
 void __init ps3_os_area_init(void);
-u64 ps3_os_area_get_rtc_diff(void);
-void ps3_os_area_set_rtc_diff(u64 rtc_diff);
 
 /* spu */
 
diff --git a/arch/powerpc/platforms/ps3/setup.c b/arch/powerpc/platforms/ps3/setup.c
index 3331ccbb8d38..66181821322a 100644
--- a/arch/powerpc/platforms/ps3/setup.c
+++ b/arch/powerpc/platforms/ps3/setup.c
@@ -270,8 +270,6 @@ define_machine(ps3) {
         .init_IRQ                       = ps3_init_IRQ,
         .panic                          = ps3_panic,
         .get_boot_time                  = ps3_get_boot_time,
-        .set_rtc_time                   = ps3_set_rtc_time,
-        .get_rtc_time                   = ps3_get_rtc_time,
         .set_dabr                       = ps3_set_dabr,
         .calibrate_decr                 = ps3_calibrate_decr,
         .progress                       = ps3_progress,
diff --git a/arch/powerpc/platforms/ps3/time.c b/arch/powerpc/platforms/ps3/time.c
index d0daf7d6d3b2..b178a1e66c91 100644
--- a/arch/powerpc/platforms/ps3/time.c
+++ b/arch/powerpc/platforms/ps3/time.c
@@ -19,6 +19,7 @@
  */
 
 #include <linux/kernel.h>
+#include <linux/platform_device.h>
 
 #include <asm/rtc.h>
 #include <asm/lv1call.h>
@@ -74,23 +75,20 @@ static u64 read_rtc(void)
         return rtc_val;
 }
 
-int ps3_set_rtc_time(struct rtc_time *tm)
+unsigned long __init ps3_get_boot_time(void)
 {
-        u64 now = mktime(tm->tm_year + 1900, tm->tm_mon + 1, tm->tm_mday,
-                tm->tm_hour, tm->tm_min, tm->tm_sec);
-
-        ps3_os_area_set_rtc_diff(now - read_rtc());
-        return 0;
+        return read_rtc() + ps3_os_area_get_rtc_diff();
 }
 
-void ps3_get_rtc_time(struct rtc_time *tm)
+static int __init ps3_rtc_init(void)
 {
-        to_tm(read_rtc() + ps3_os_area_get_rtc_diff(), tm);
-        tm->tm_year -= 1900;
-        tm->tm_mon -= 1;
-}
+        struct platform_device *pdev;
 
-unsigned long __init ps3_get_boot_time(void)
-{
-        return read_rtc() + ps3_os_area_get_rtc_diff();
+        pdev = platform_device_register_simple("rtc-ps3", -1, NULL, 0);
+        if (IS_ERR(pdev))
+                return PTR_ERR(pdev);
+
+        return 0;
 }
+
+module_init(ps3_rtc_init);
diff --git a/drivers/rtc/Kconfig b/drivers/rtc/Kconfig
index 56002f7d26bd..ffe34a12f446 100644
--- a/drivers/rtc/Kconfig
+++ b/drivers/rtc/Kconfig
@@ -688,22 +688,16 @@ config RTC_DRV_RS5C313
         help
           If you say yes here you get support for the Ricoh RS5C313 RTC chips.
 
-config RTC_DRV_PARISC
-        tristate "PA-RISC firmware RTC support"
-        depends on PARISC
-        help
-          Say Y or M here to enable RTC support on PA-RISC systems using
-          firmware calls. If you do not know what you are doing, you should
+config RTC_DRV_GENERIC
+        tristate "Generic RTC support"
+        # Please consider writing a new RTC driver instead of using the generic
+        # RTC abstraction
+        depends on PARISC || M68K || PPC
+        help
+          Say Y or M here to enable RTC support on systems using the generic
+          RTC abstraction. If you do not know what you are doing, you should
           just say Y.
 
-config RTC_DRV_PPC
-       tristate "PowerPC machine dependent RTC support"
-       depends on PPC
-       help
-         The PowerPC kernel has machine-specific functions for accessing
-         the RTC. This exposes that functionality through the generic RTC
-         class.
-
 config RTC_DRV_PXA
        tristate "PXA27x/PXA3xx"
        depends on ARCH_PXA
@@ -747,4 +741,13 @@ config RTC_DRV_MV
           This driver can also be built as a module. If so, the module
           will be called rtc-mv.
 
+config RTC_DRV_PS3
+        tristate "PS3 RTC"
+        depends on PPC_PS3
+        help
+          If you say yes here you will get support for the RTC on PS3.
+
+          This driver can also be built as a module. If so, the module
+          will be called rtc-ps3.
+
 endif # RTC_CLASS
diff --git a/drivers/rtc/Makefile b/drivers/rtc/Makefile
index e7b09986d26e..6c0639a14f09 100644
--- a/drivers/rtc/Makefile
+++ b/drivers/rtc/Makefile
@@ -56,8 +56,7 @@ 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-$(CONFIG_RTC_DRV_PARISC)    += rtc-parisc.o
-obj-$(CONFIG_RTC_DRV_PPC)       += rtc-ppc.o
+obj-$(CONFIG_RTC_DRV_GENERIC)   += rtc-generic.o
 obj-$(CONFIG_RTC_DRV_PXA)       += rtc-pxa.o
 obj-$(CONFIG_RTC_DRV_R9701)     += rtc-r9701.o
 obj-$(CONFIG_RTC_DRV_RS5C313)   += rtc-rs5c313.o
@@ -77,3 +76,4 @@ obj-$(CONFIG_RTC_DRV_VR41XX)	+= rtc-vr41xx.o
 obj-$(CONFIG_RTC_DRV_WM8350)    += rtc-wm8350.o
 obj-$(CONFIG_RTC_DRV_X1205)     += rtc-x1205.o
 obj-$(CONFIG_RTC_DRV_PCF50633)  += rtc-pcf50633.o
+obj-$(CONFIG_RTC_DRV_PS3)       += rtc-ps3.o
diff --git a/drivers/rtc/rtc-generic.c b/drivers/rtc/rtc-generic.c
new file mode 100644
index 000000000000..98322004ad2e
--- /dev/null
+++ b/drivers/rtc/rtc-generic.c
@@ -0,0 +1,84 @@
+/* rtc-generic: RTC driver using the generic RTC abstraction
+ *
+ * Copyright (C) 2008 Kyle McMartin <kyle@mcmartin.ca>
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/time.h>
+#include <linux/platform_device.h>
+#include <linux/rtc.h>
+
+#include <asm/rtc.h>
+
+static int generic_get_time(struct device *dev, struct rtc_time *tm)
+{
+        unsigned int ret = get_rtc_time(tm);
+
+        if (ret & RTC_BATT_BAD)
+                return -EOPNOTSUPP;
+
+        return rtc_valid_tm(tm);
+}
+
+static int generic_set_time(struct device *dev, struct rtc_time *tm)
+{
+        if (set_rtc_time(tm) < 0)
+                return -EOPNOTSUPP;
+
+        return 0;
+}
+
+static const struct rtc_class_ops generic_rtc_ops = {
+        .read_time = generic_get_time,
+        .set_time = generic_set_time,
+};
+
+static int __init generic_rtc_probe(struct platform_device *dev)
+{
+        struct rtc_device *rtc;
+
+        rtc = rtc_device_register("rtc-generic", &dev->dev, &generic_rtc_ops,
+                                  THIS_MODULE);
+        if (IS_ERR(rtc))
+                return PTR_ERR(rtc);
+
+        platform_set_drvdata(dev, rtc);
+
+        return 0;
+}
+
+static int __exit generic_rtc_remove(struct platform_device *dev)
+{
+        struct rtc_device *rtc = platform_get_drvdata(dev);
+
+        rtc_device_unregister(rtc);
+
+        return 0;
+}
+
+static struct platform_driver generic_rtc_driver = {
+        .driver = {
+                .name = "rtc-generic",
+                .owner = THIS_MODULE,
+        },
+        .remove = __exit_p(generic_rtc_remove),
+};
+
+static int __init generic_rtc_init(void)
+{
+        return platform_driver_probe(&generic_rtc_driver, generic_rtc_probe);
+}
+
+static void __exit generic_rtc_fini(void)
+{
+        platform_driver_unregister(&generic_rtc_driver);
+}
+
+module_init(generic_rtc_init);
+module_exit(generic_rtc_fini);
+
+MODULE_AUTHOR("Kyle McMartin <kyle@mcmartin.ca>");
+MODULE_LICENSE("GPL");
+MODULE_DESCRIPTION("Generic RTC driver");
+MODULE_ALIAS("platform:rtc-generic");
diff --git a/drivers/rtc/rtc-parisc.c b/drivers/rtc/rtc-parisc.c
deleted file mode 100644
index b966f56da976..000000000000
--- a/drivers/rtc/rtc-parisc.c
+++ /dev/null
@@ -1,86 +0,0 @@
-/* rtc-parisc: RTC for HP PA-RISC firmware
- *
- * Copyright (C) 2008 Kyle McMartin <kyle@mcmartin.ca>
- */
-
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/time.h>
-#include <linux/platform_device.h>
-#include <linux/rtc.h>
-
-#include <asm/rtc.h>
-
-static int parisc_get_time(struct device *dev, struct rtc_time *tm)
-{
-        unsigned long ret;
-
-        ret = get_rtc_time(tm);
-
-        if (ret & RTC_BATT_BAD)
-                return -EOPNOTSUPP;
-
-        return rtc_valid_tm(tm);
-}
-
-static int parisc_set_time(struct device *dev, struct rtc_time *tm)
-{
-        if (set_rtc_time(tm) < 0)
-                return -EOPNOTSUPP;
-
-        return 0;
-}
-
-static const struct rtc_class_ops parisc_rtc_ops = {
-        .read_time = parisc_get_time,
-        .set_time = parisc_set_time,
-};
-
-static int __init parisc_rtc_probe(struct platform_device *dev)
-{
-        struct rtc_device *rtc;
-
-        rtc = rtc_device_register("rtc-parisc", &dev->dev, &parisc_rtc_ops,
-                                  THIS_MODULE);
-        if (IS_ERR(rtc))
-                return PTR_ERR(rtc);
-
-        platform_set_drvdata(dev, rtc);
-
-        return 0;
-}
-
-static int __exit parisc_rtc_remove(struct platform_device *dev)
-{
-        struct rtc_device *rtc = platform_get_drvdata(dev);
-
-        rtc_device_unregister(rtc);
-
-        return 0;
-}
-
-static struct platform_driver parisc_rtc_driver = {
-        .driver = {
-                .name = "rtc-parisc",
-                .owner = THIS_MODULE,
-        },
-        .probe = parisc_rtc_probe,
-        .remove = __devexit_p(parisc_rtc_remove),
-};
-
-static int __init parisc_rtc_init(void)
-{
-        return platform_driver_probe(&parisc_rtc_driver, parisc_rtc_probe);
-}
-
-static void __exit parisc_rtc_fini(void)
-{
-        platform_driver_unregister(&parisc_rtc_driver);
-}
-
-module_init(parisc_rtc_init);
-module_exit(parisc_rtc_fini);
-
-MODULE_AUTHOR("Kyle McMartin <kyle@mcmartin.ca>");
-MODULE_LICENSE("GPL");
-MODULE_DESCRIPTION("HP PA-RISC RTC driver");
diff --git a/drivers/rtc/rtc-ppc.c b/drivers/rtc/rtc-ppc.c
deleted file mode 100644
index c8e97e25ef7e..000000000000
--- a/drivers/rtc/rtc-ppc.c
+++ /dev/null
@@ -1,69 +0,0 @@
-/*
- * 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-ps3.c b/drivers/rtc/rtc-ps3.c
new file mode 100644
index 000000000000..968133ce1ee8
--- /dev/null
+++ b/drivers/rtc/rtc-ps3.c
@@ -0,0 +1,104 @@
+/*
+ * PS3 RTC Driver
+ *
+ * Copyright 2009 Sony Corporation
+ *
+ * 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; version 2 of the License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.
+ * If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/rtc.h>
+
+#include <asm/lv1call.h>
+#include <asm/ps3.h>
+
+
+static u64 read_rtc(void)
+{
+        int result;
+        u64 rtc_val;
+        u64 tb_val;
+
+        result = lv1_get_rtc(&rtc_val, &tb_val);
+        BUG_ON(result);
+
+        return rtc_val;
+}
+
+static int ps3_get_time(struct device *dev, struct rtc_time *tm)
+{
+        rtc_time_to_tm(read_rtc() + ps3_os_area_get_rtc_diff(), tm);
+        return rtc_valid_tm(tm);
+}
+
+static int ps3_set_time(struct device *dev, struct rtc_time *tm)
+{
+        unsigned long now;
+
+        rtc_tm_to_time(tm, &now);
+        ps3_os_area_set_rtc_diff(now - read_rtc());
+        return 0;
+}
+
+static const struct rtc_class_ops ps3_rtc_ops = {
+        .read_time = ps3_get_time,
+        .set_time = ps3_set_time,
+};
+
+static int __init ps3_rtc_probe(struct platform_device *dev)
+{
+        struct rtc_device *rtc;
+
+        rtc = rtc_device_register("rtc-ps3", &dev->dev, &ps3_rtc_ops,
+                                  THIS_MODULE);
+        if (IS_ERR(rtc))
+                return PTR_ERR(rtc);
+
+        platform_set_drvdata(dev, rtc);
+        return 0;
+}
+
+static int __exit ps3_rtc_remove(struct platform_device *dev)
+{
+        rtc_device_unregister(platform_get_drvdata(dev));
+        return 0;
+}
+
+static struct platform_driver ps3_rtc_driver = {
+        .driver = {
+                .name = "rtc-ps3",
+                .owner = THIS_MODULE,
+        },
+        .remove = __exit_p(ps3_rtc_remove),
+};
+
+static int __init ps3_rtc_init(void)
+{
+        return platform_driver_probe(&ps3_rtc_driver, ps3_rtc_probe);
+}
+
+static void __exit ps3_rtc_fini(void)
+{
+        platform_driver_unregister(&ps3_rtc_driver);
+}
+
+module_init(ps3_rtc_init);
+module_exit(ps3_rtc_fini);
+
+MODULE_AUTHOR("Sony Corporation");
+MODULE_LICENSE("GPL");
+MODULE_DESCRIPTION("ps3 RTC driver");
+MODULE_ALIAS("platform:rtc-ps3");