[ARM] 5452/1: ep93x: rtc: use ioremap'ed addresses

Update the rtc-ep93xx driver to use ioremap'ed addresses.

This removes the dependency on <mach/hardware.h> and properly
reports the memory addresses used by the driver in /proc/iomem.

In addition, ep93xx_rtc_init() is updated to use
platform_driver_probe() instead of platform_driver_register().

Also, the device_create_file() calls are now properly checked for
error conditions.  The created sysfs files are also now removed
when the driver is removed.

The version number for the driver has been bumped at the request
of Alessandro Zummo.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Acked-by: Alessandro Zummo <a.zummo@towertech.it>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

2 files changed, 13 insertions, 3 deletions

diff --git a/arch/arm/mach-ep93xx/core.c b/arch/arm/mach-ep93xx/core.c
index ae24486f858a..c535e8805a3b 100644
--- a/arch/arm/mach-ep93xx/core.c
+++ b/arch/arm/mach-ep93xx/core.c
@@ -450,10 +450,19 @@ static struct amba_device uart3_device = {
 };
 
 
+static struct resource ep93xx_rtc_resource[] = {
+        {
+                .start          = EP93XX_RTC_PHYS_BASE,
+                .end            = EP93XX_RTC_PHYS_BASE + 0x10c - 1,
+                .flags          = IORESOURCE_MEM,
+        },
+};
+
 static struct platform_device ep93xx_rtc_device = {
-       .name           = "ep93xx-rtc",
-       .id             = -1,
-       .num_resources  = 0,
+        .name           = "ep93xx-rtc",
+        .id             = -1,
+        .num_resources  = ARRAY_SIZE(ep93xx_rtc_resource),
+        .resource       = ep93xx_rtc_resource,
 };
 
 
diff --git a/arch/arm/mach-ep93xx/include/mach/ep93xx-regs.h b/arch/arm/mach-ep93xx/include/mach/ep93xx-regs.h
index f66be12b856e..78ac1bddc8bc 100644
--- a/arch/arm/mach-ep93xx/include/mach/ep93xx-regs.h
+++ b/arch/arm/mach-ep93xx/include/mach/ep93xx-regs.h
@@ -147,6 +147,7 @@
 #define EP93XX_PWM_BASE                 (EP93XX_APB_VIRT_BASE + 0x00110000)
 
 #define EP93XX_RTC_BASE                 (EP93XX_APB_VIRT_BASE + 0x00120000)
+#define EP93XX_RTC_PHYS_BASE            (EP93XX_APB_PHYS_BASE + 0x00120000)
 
 #define EP93XX_SYSCON_BASE              (EP93XX_APB_VIRT_BASE + 0x00130000)
 #define EP93XX_SYSCON_REG(x)            (EP93XX_SYSCON_BASE + (x))