diff options
Diffstat (limited to 'arch/arm/mach-pxa/poodle.c')
| -rw-r--r-- | arch/arm/mach-pxa/poodle.c | 90 |
1 files changed, 42 insertions, 48 deletions
diff --git a/arch/arm/mach-pxa/poodle.c b/arch/arm/mach-pxa/poodle.c index 461af1c582bb..d39cbf3e9d28 100644 --- a/arch/arm/mach-pxa/poodle.c +++ b/arch/arm/mach-pxa/poodle.c @@ -21,6 +21,8 @@ #include <linux/pm.h> #include <linux/delay.h> #include <linux/gpio.h> +#include <linux/spi/spi.h> +#include <linux/spi/ads7846.h> #include <mach/hardware.h> #include <asm/mach-types.h> @@ -43,6 +45,7 @@ #include <mach/pxafb.h> #include <mach/sharpsl.h> #include <mach/ssp.h> +#include <mach/pxa2xx_spi.h> #include <asm/hardware/scoop.h> #include <asm/hardware/locomo.h> @@ -63,9 +66,9 @@ static unsigned long poodle_pin_config[] __initdata = { /* SSP1 */ GPIO23_SSP1_SCLK, - GPIO24_SSP1_SFRM, GPIO25_SSP1_TXD, GPIO26_SSP1_RXD, + GPIO24_GPIO, /* POODLE_GPIO_TP_CS - SFRM as chip select */ /* I2S */ GPIO28_I2S_BITCLK_OUT, @@ -197,62 +200,55 @@ struct platform_device poodle_locomo_device = { EXPORT_SYMBOL(poodle_locomo_device); -/* - * Poodle SSP Device - */ - -struct platform_device poodle_ssp_device = { - .name = "corgi-ssp", - .id = -1, +#if defined(CONFIG_SPI_PXA2XX) || defined(CONFIG_SPI_PXA2XX_MODULE) +static struct pxa2xx_spi_master poodle_spi_info = { + .num_chipselect = 1, }; -struct corgissp_machinfo poodle_ssp_machinfo = { - .port = 1, - .cs_lcdcon = -1, - .cs_ads7846 = -1, - .cs_max1111 = -1, - .clk_lcdcon = 2, - .clk_ads7846 = 36, - .clk_max1111 = 2, +static struct ads7846_platform_data poodle_ads7846_info = { + .model = 7846, + .vref_delay_usecs = 100, + .x_plate_ohms = 419, + .y_plate_ohms = 486, + .gpio_pendown = POODLE_GPIO_TP_INT, }; - -/* - * Poodle Touch Screen Device - */ -static struct resource poodlets_resources[] = { - [0] = { - .start = POODLE_IRQ_GPIO_TP_INT, - .end = POODLE_IRQ_GPIO_TP_INT, - .flags = IORESOURCE_IRQ, - }, -}; - -static unsigned long poodle_get_hsync_invperiod(void) +static void ads7846_cs(u32 command) { - return 0; + gpio_set_value(POODLE_GPIO_TP_CS, !(command == PXA2XX_CS_ASSERT)); } -static void poodle_null_hsync(void) -{ -} - -static struct corgits_machinfo poodle_ts_machinfo = { - .get_hsync_invperiod = poodle_get_hsync_invperiod, - .put_hsync = poodle_null_hsync, - .wait_hsync = poodle_null_hsync, +static struct pxa2xx_spi_chip poodle_ads7846_chip = { + .cs_control = ads7846_cs, }; -static struct platform_device poodle_ts_device = { - .name = "corgi-ts", - .dev = { - .platform_data = &poodle_ts_machinfo, +static struct spi_board_info poodle_spi_devices[] = { + { + .modalias = "ads7846", + .max_speed_hz = 10000, + .bus_num = 1, + .platform_data = &poodle_ads7846_info, + .controller_data= &poodle_ads7846_chip, + .irq = gpio_to_irq(POODLE_GPIO_TP_INT), }, - .id = -1, - .num_resources = ARRAY_SIZE(poodlets_resources), - .resource = poodlets_resources, }; +static void __init poodle_init_spi(void) +{ + int err; + + err = gpio_request(POODLE_GPIO_TP_CS, "ADS7846_CS"); + if (err) + return; + + gpio_direction_output(POODLE_GPIO_TP_CS, 1); + + pxa2xx_set_spi_info(1, &poodle_spi_info); + spi_register_board_info(ARRAY_AND_SIZE(poodle_spi_devices)); +} +#else +static inline void poodle_init_spi(void) {} +#endif /* * MMC/SD Device @@ -419,8 +415,6 @@ static struct pxafb_mach_info poodle_fb_info = { static struct platform_device *devices[] __initdata = { &poodle_locomo_device, &poodle_scoop_device, - &poodle_ssp_device, - &poodle_ts_device, }; static void poodle_poweroff(void) @@ -445,7 +439,6 @@ static void __init poodle_init(void) pxa2xx_mfp_config(ARRAY_AND_SIZE(poodle_pin_config)); platform_scoop_config = &poodle_pcmcia_config; - corgi_ssp_set_machinfo(&poodle_ssp_machinfo); ret = platform_add_devices(devices, ARRAY_SIZE(devices)); if (ret) @@ -457,6 +450,7 @@ static void __init poodle_init(void) pxa_set_mci_info(&poodle_mci_platform_data); pxa_set_ficp_info(&poodle_ficp_platform_data); pxa_set_i2c_info(NULL); + poodle_init_spi(); } static void __init fixup_poodle(struct machine_desc *desc, |