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authorVaibhav Hiremath <hvaibhav@ti.com>2010-02-13 11:47:56 (GMT)
committerTony Lindgren <tony@atomide.com>2010-02-19 23:22:17 (GMT)
commitf2afbbb82e263086d02a772e43f5290b1a6f673e (patch)
treeb8980a6bd42f1d9d0eaf0631d3f7ffef7c979cb4 /arch/arm/mach-omap2/board-am3517evm.c
parent1f738dc306c86a8293c7ea929d07f55f32d52ff6 (diff)
downloadlinux-f2afbbb82e263086d02a772e43f5290b1a6f673e.tar.xz
AM3517: Enable RTC driver support for AM3517EVM
Add platform hook-up interface to support RTC driver (S35390A). Signed-off-by: Vaibhav Hiremath <hvaibhav@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
Diffstat (limited to 'arch/arm/mach-omap2/board-am3517evm.c')
-rw-r--r--arch/arm/mach-omap2/board-am3517evm.c39
1 files changed, 39 insertions, 0 deletions
diff --git a/arch/arm/mach-omap2/board-am3517evm.c b/arch/arm/mach-omap2/board-am3517evm.c
index af99faf..fe2446d 100644
--- a/arch/arm/mach-omap2/board-am3517evm.c
+++ b/arch/arm/mach-omap2/board-am3517evm.c
@@ -38,6 +38,39 @@
#define LCD_PANEL_BKLIGHT_PWR 182
#define LCD_PANEL_PWM 181
+static struct i2c_board_info __initdata am3517evm_i2c_boardinfo[] = {
+ {
+ I2C_BOARD_INFO("s35390a", 0x30),
+ .type = "s35390a",
+ },
+};
+
+/*
+ * RTC - S35390A
+ */
+#define GPIO_RTCS35390A_IRQ 55
+
+static void __init am3517_evm_rtc_init(void)
+{
+ int r;
+
+ omap_mux_init_gpio(GPIO_RTCS35390A_IRQ, OMAP_PIN_INPUT_PULLUP);
+ r = gpio_request(GPIO_RTCS35390A_IRQ, "rtcs35390a-irq");
+ if (r < 0) {
+ printk(KERN_WARNING "failed to request GPIO#%d\n",
+ GPIO_RTCS35390A_IRQ);
+ return;
+ }
+ r = gpio_direction_input(GPIO_RTCS35390A_IRQ);
+ if (r < 0) {
+ printk(KERN_WARNING "GPIO#%d cannot be configured as input\n",
+ GPIO_RTCS35390A_IRQ);
+ gpio_free(GPIO_RTCS35390A_IRQ);
+ return;
+ }
+ am3517evm_i2c_boardinfo[0].irq = gpio_to_irq(GPIO_RTCS35390A_IRQ);
+}
+
static int __init am3517_evm_i2c_init(void)
{
omap_register_i2c_bus(1, 400, NULL, 0);
@@ -235,6 +268,12 @@ static void __init am3517_evm_init(void)
usb_ehci_init(&ehci_pdata);
/* DSS */
am3517_evm_display_init();
+
+ /* RTC - S35390A */
+ am3517_evm_rtc_init();
+
+ i2c_register_board_info(1, am3517evm_i2c_boardinfo,
+ ARRAY_SIZE(am3517evm_i2c_boardinfo));
}
static void __init am3517_evm_map_io(void)