Blackfin arch: Add AD7879 defaults for the Blackfin Landscape LCD EZ-Extender (5105432a) · Commits · 戴 / test

arch/blackfin/mach-bf527/boards/ezbrd.c

+36 −0

Original line number	Diff line number	Diff line
		@@ -288,6 +288,30 @@ static const struct ad7877_platform_data bfin_ad7877_ts_info = {
		};
		#endif

		#if defined(CONFIG_TOUCHSCREEN_AD7879) \|\| defined(CONFIG_TOUCHSCREEN_AD7879_MODULE)
		#include <linux/spi/ad7879.h>
		static const struct ad7879_platform_data bfin_ad7879_ts_info = {
		.model = 7879, /* Model = AD7879 */
		.x_plate_ohms = 620, /* 620 Ohm from the touch datasheet */
		.pressure_max = 10000,
		.pressure_min = 0,
		.first_conversion_delay = 3, /* wait 512us before do a first conversion */
		.acquisition_time = 1, /* 4us acquisition time per sample */
		.median = 2, /* do 8 measurements */
		.averaging = 1, /* take the average of 4 middle samples */
		.pen_down_acc_interval = 255, /* 9.4 ms */
		.gpio_output = 1, /* configure AUX/VBAT/GPIO as GPIO output */
		.gpio_default = 1, /* During initialization set GPIO = HIGH */
		};
		#endif

		#if defined(CONFIG_TOUCHSCREEN_AD7879_SPI) \|\| defined(CONFIG_TOUCHSCREEN_AD7879_SPI_MODULE)
		static struct bfin5xx_spi_chip spi_ad7879_chip_info = {
		.enable_dma = 0,
		.bits_per_word = 16,
		};
		#endif

		#if defined(CONFIG_SND_SOC_WM8731) \|\| defined(CONFIG_SND_SOC_WM8731_MODULE) \
		&& defined(CONFIG_SND_SOC_WM8731_SPI)
		static struct bfin5xx_spi_chip spi_wm8731_chip_info = {
		@@ -386,6 +410,18 @@ static struct spi_board_info bfin_spi_board_info[] __initdata = {
		.controller_data = &spi_ad7877_chip_info,
		},
		#endif
		#if defined(CONFIG_TOUCHSCREEN_AD7879_SPI) \|\| defined(CONFIG_TOUCHSCREEN_AD7879_SPI_MODULE)
		{
		.modalias = "ad7879",
		.platform_data = &bfin_ad7879_ts_info,
		.irq = IRQ_PG0,
		.max_speed_hz = 5000000, /* max spi clock (SCK) speed in HZ */
		.bus_num = 0,
		.chip_select = 5,
		.controller_data = &spi_ad7879_chip_info,
		.mode = SPI_CPHA \| SPI_CPOL,
		},
		#endif
		#if defined(CONFIG_SND_SOC_WM8731) \|\| defined(CONFIG_SND_SOC_WM8731_MODULE) \
		&& defined(CONFIG_SND_SOC_WM8731_SPI)
		{

arch/blackfin/mach-bf527/boards/ezkit.c

+36 −0

Original line number	Diff line number	Diff line
		@@ -534,6 +534,30 @@ static const struct ad7877_platform_data bfin_ad7877_ts_info = {
		};
		#endif

		#if defined(CONFIG_TOUCHSCREEN_AD7879) \|\| defined(CONFIG_TOUCHSCREEN_AD7879_MODULE)
		#include <linux/spi/ad7879.h>
		static const struct ad7879_platform_data bfin_ad7879_ts_info = {
		.model = 7879, /* Model = AD7879 */
		.x_plate_ohms = 620, /* 620 Ohm from the touch datasheet */
		.pressure_max = 10000,
		.pressure_min = 0,
		.first_conversion_delay = 3, /* wait 512us before do a first conversion */
		.acquisition_time = 1, /* 4us acquisition time per sample */
		.median = 2, /* do 8 measurements */
		.averaging = 1, /* take the average of 4 middle samples */
		.pen_down_acc_interval = 255, /* 9.4 ms */
		.gpio_output = 1, /* configure AUX/VBAT/GPIO as GPIO output */
		.gpio_default = 1, /* During initialization set GPIO = HIGH */
		};
		#endif

		#if defined(CONFIG_TOUCHSCREEN_AD7879_SPI) \|\| defined(CONFIG_TOUCHSCREEN_AD7879_SPI_MODULE)
		static struct bfin5xx_spi_chip spi_ad7879_chip_info = {
		.enable_dma = 0,
		.bits_per_word = 16,
		};
		#endif

		#if defined(CONFIG_SND_SOC_WM8731) \|\| defined(CONFIG_SND_SOC_WM8731_MODULE) \
		&& defined(CONFIG_SND_SOC_WM8731_SPI)
		static struct bfin5xx_spi_chip spi_wm8731_chip_info = {
		@@ -624,6 +648,18 @@ static struct spi_board_info bfin_spi_board_info[] __initdata = {
		.controller_data = &spi_ad7877_chip_info,
		},
		#endif
		#if defined(CONFIG_TOUCHSCREEN_AD7879_SPI) \|\| defined(CONFIG_TOUCHSCREEN_AD7879_SPI_MODULE)
		{
		.modalias = "ad7879",
		.platform_data = &bfin_ad7879_ts_info,
		.irq = IRQ_PF8,
		.max_speed_hz = 5000000, /* max spi clock (SCK) speed in HZ */
		.bus_num = 0,
		.chip_select = 3,
		.controller_data = &spi_ad7879_chip_info,
		.mode = SPI_CPHA \| SPI_CPOL,
		},
		#endif
		#if defined(CONFIG_SND_SOC_WM8731) \|\| defined(CONFIG_SND_SOC_WM8731_MODULE) \
		&& defined(CONFIG_SND_SOC_WM8731_SPI)
		{

Admin message