Blackfin: bf537-stamp: add example ADS7846 touchscreen resources
Signed-off-by: Michael Hennerich <michael.hennerich@analog.com> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
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@ -825,6 +825,29 @@ static inline void adf702x_mac_init(void)
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static inline void adf702x_mac_init(void) {}
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#endif
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#if defined(CONFIG_TOUCHSCREEN_ADS7846) || defined(CONFIG_TOUCHSCREEN_ADS7846_MODULE)
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#include <linux/spi/ads7846.h>
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static struct bfin5xx_spi_chip ad7873_spi_chip_info = {
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.bits_per_word = 8,
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};
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static int ads7873_get_pendown_state(void)
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{
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return gpio_get_value(GPIO_PF6);
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}
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static struct ads7846_platform_data __initdata ad7873_pdata = {
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.model = 7873, /* AD7873 */
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.x_max = 0xfff,
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.y_max = 0xfff,
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.x_plate_ohms = 620,
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.debounce_max = 1,
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.debounce_rep = 0,
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.debounce_tol = (~0),
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.get_pendown_state = ads7873_get_pendown_state,
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};
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#endif
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#if defined(CONFIG_MTD_DATAFLASH) \
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|| defined(CONFIG_MTD_DATAFLASH_MODULE)
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@ -1026,7 +1049,18 @@ static struct spi_board_info bfin_spi_board_info[] __initdata = {
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.mode = SPI_MODE_0,
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},
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#endif
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#if defined(CONFIG_TOUCHSCREEN_ADS7846) || defined(CONFIG_TOUCHSCREEN_ADS7846_MODULE)
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{
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.modalias = "ads7846",
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.max_speed_hz = 2000000, /* max spi clock (SCK) speed in HZ */
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.bus_num = 0,
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.irq = IRQ_PF6,
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.chip_select = GPIO_PF10 + MAX_CTRL_CS, /* GPIO controlled SSEL */
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.controller_data = &ad7873_spi_chip_info,
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.platform_data = &ad7873_pdata,
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.mode = SPI_MODE_0,
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},
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#endif
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};
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#if defined(CONFIG_SPI_BFIN) || defined(CONFIG_SPI_BFIN_MODULE)
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