[ARM] 5395/1: RealView: Add support for the DS1338 RTC chip

This chip is on the I2C bus on the RealView and Versatile boards. The
patch adds the i2c_board_info definition for this device and registers
it with the I2C subsystem.

Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

1 files changed, 15 insertions, 1 deletions

diff --git a/arch/arm/mach-versatile/core.c b/arch/arm/mach-versatile/core.c
index 1c43494f5c42..565776680d8c 100644
--- a/arch/arm/mach-versatile/core.c
+++ b/arch/arm/mach-versatile/core.c
@@ -335,11 +335,25 @@ static struct resource versatile_i2c_resource = {
 
 static struct platform_device versatile_i2c_device = {
         .name                   = "versatile-i2c",
-        .id                     = -1,
+        .id                     = 0,
         .num_resources          = 1,
         .resource               = &versatile_i2c_resource,
 };
 
+static struct i2c_board_info versatile_i2c_board_info[] = {
+        {
+                I2C_BOARD_INFO("rtc-ds1307", 0xd0 >> 1),
+                .type = "ds1338",
+        },
+};
+
+static int __init versatile_i2c_init(void)
+{
+        return i2c_register_board_info(0, versatile_i2c_board_info,
+                                       ARRAY_SIZE(versatile_i2c_board_info));
+}
+arch_initcall(versatile_i2c_init);
+
 #define VERSATILE_SYSMCI        (__io_address(VERSATILE_SYS_BASE) + VERSATILE_SYS_MCI_OFFSET)
 
 unsigned int mmc_status(struct device *dev)