From 3dad5356aa47097cf67027cf0a07298b4f5baef6 Mon Sep 17 00:00:00 2001 From: Aaro Koskinen Date: Tue, 13 Dec 2011 10:48:53 -0800 Subject: ARM: OMAP3: rx51: enable tsc2005 touchscreen Enable TSC2005 touchscreen driver on the RX-51 board by providing the needed platform data. Signed-off-by: Aaro Koskinen Reviewed-by: Sebastian Reichel Signed-off-by: Tony Lindgren --- arch/arm/mach-omap2/board-rx51-peripherals.c | 46 ++++++++++++++++++++++++++-- 1 file changed, 44 insertions(+), 2 deletions(-) (limited to 'arch/arm/mach-omap2/board-rx51-peripherals.c') diff --git a/arch/arm/mach-omap2/board-rx51-peripherals.c b/arch/arm/mach-omap2/board-rx51-peripherals.c index bd18d691c6ad..e9eff00cddd4 100644 --- a/arch/arm/mach-omap2/board-rx51-peripherals.c +++ b/arch/arm/mach-omap2/board-rx51-peripherals.c @@ -15,6 +15,7 @@ #include #include #include +#include #include #include #include @@ -58,6 +59,9 @@ #define RX51_USB_TRANSCEIVER_RST_GPIO 67 +#define RX51_TSC2005_RESET_GPIO 104 +#define RX51_TSC2005_IRQ_GPIO 100 + /* list all spi devices here */ enum { RX51_SPI_WL1251, @@ -66,6 +70,7 @@ enum { }; static struct wl12xx_platform_data wl1251_pdata; +static struct tsc2005_platform_data tsc2005_pdata; #if defined(CONFIG_SENSORS_TSL2563) || defined(CONFIG_SENSORS_TSL2563_MODULE) static struct tsl2563_platform_data rx51_tsl2563_platform_data = { @@ -167,10 +172,10 @@ static struct spi_board_info rx51_peripherals_spi_board_info[] __initdata = { .modalias = "tsc2005", .bus_num = 1, .chip_select = 0, - /* .irq = OMAP_GPIO_IRQ(RX51_TSC2005_IRQ_GPIO),*/ + .irq = OMAP_GPIO_IRQ(RX51_TSC2005_IRQ_GPIO), .max_speed_hz = 6000000, .controller_data = &tsc2005_mcspi_config, - /* .platform_data = &tsc2005_config,*/ + .platform_data = &tsc2005_pdata, }, }; @@ -1086,6 +1091,42 @@ error: */ } +static struct tsc2005_platform_data tsc2005_pdata = { + .ts_pressure_max = 2048, + .ts_pressure_fudge = 2, + .ts_x_max = 4096, + .ts_x_fudge = 4, + .ts_y_max = 4096, + .ts_y_fudge = 7, + .ts_x_plate_ohm = 280, + .esd_timeout_ms = 8000, +}; + +static void rx51_tsc2005_set_reset(bool enable) +{ + gpio_set_value(RX51_TSC2005_RESET_GPIO, enable); +} + +static void __init rx51_init_tsc2005(void) +{ + int r; + + r = gpio_request_one(RX51_TSC2005_IRQ_GPIO, GPIOF_IN, "tsc2005 IRQ"); + if (r < 0) { + printk(KERN_ERR "unable to get %s GPIO\n", "tsc2005 IRQ"); + rx51_peripherals_spi_board_info[RX51_SPI_TSC2005].irq = 0; + } + + r = gpio_request_one(RX51_TSC2005_RESET_GPIO, GPIOF_OUT_INIT_HIGH, + "tsc2005 reset"); + if (r >= 0) { + tsc2005_pdata.set_reset = rx51_tsc2005_set_reset; + } else { + printk(KERN_ERR "unable to get %s GPIO\n", "tsc2005 reset"); + tsc2005_pdata.esd_timeout_ms = 0; + } +} + void __init rx51_peripherals_init(void) { rx51_i2c_init(); @@ -1094,6 +1135,7 @@ void __init rx51_peripherals_init(void) board_smc91x_init(); rx51_add_gpio_keys(); rx51_init_wl1251(); + rx51_init_tsc2005(); rx51_init_si4713(); spi_register_board_info(rx51_peripherals_spi_board_info, ARRAY_SIZE(rx51_peripherals_spi_board_info)); -- cgit v1.2.3