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| author | Vaibhav Hiremath <hvaibhav@ti.com> | 2010-02-13 11:47:56 +0000 |
|---|---|---|
| committer | Tony Lindgren <tony@atomide.com> | 2010-02-19 15:22:17 -0800 |
| commit | f2afbbb82e263086d02a772e43f5290b1a6f673e (patch) | |
| tree | b8980a6bd42f1d9d0eaf0631d3f7ffef7c979cb4 | |
| parent | 1f738dc306c86a8293c7ea929d07f55f32d52ff6 (diff) | |
| download | blackbird-op-linux-f2afbbb82e263086d02a772e43f5290b1a6f673e.tar.gz blackbird-op-linux-f2afbbb82e263086d02a772e43f5290b1a6f673e.zip | |
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>
| -rw-r--r-- | arch/arm/mach-omap2/board-am3517evm.c | 39 |
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 af99faf2cced..fe2446ded5ad 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) |
