OpenE2K
/
linux
6
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

Blackfin arch: AD7879 Touchscreen driver 

Add AD7879 Touchscreen driver to the device structures

Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
This commit is contained in:
Michael Hennerich 2008-10-13 11:30:17 +08:00 committed by Bryan Wu
parent 58c35bd31f
commit 46aa04f9b6
1 changed files with 37 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

40
arch/blackfin/mach-bf537/boards/stamp.c
View File

@ -51,7 +51,6 @@
#include <asm/reboot.h>
#include <asm/portmux.h>
#include <asm/dpmc.h>
#include <linux/spi/ad7877.h>
/*
* Name the Board for the /proc/cpuinfo
@ -555,6 +554,7 @@ static struct bfin5xx_spi_chip spi_si3xxx_chip_info = {
#endif
#if defined(CONFIG_TOUCHSCREEN_AD7877) || defined(CONFIG_TOUCHSCREEN_AD7877_MODULE)
#include <linux/spi/ad7877.h>
static struct bfin5xx_spi_chip spi_ad7877_chip_info = {
.enable_dma = 0,
.bits_per_word = 16,
@ -575,6 +575,28 @@ 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 struct bfin5xx_spi_chip spi_ad7879_chip_info = {
.enable_dma = 0,
.bits_per_word = 16,
};
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_SPI_SPIDEV) || defined(CONFIG_SPI_SPIDEV_MODULE)
static struct bfin5xx_spi_chip spidev_chip_info = {
.enable_dma = 0,
@ -728,6 +750,18 @@ static struct spi_board_info bfin_spi_board_info[] __initdata = {
.controller_data = &spi_ad7877_chip_info,
},
#endif
#if defined(CONFIG_TOUCHSCREEN_AD7879) || defined(CONFIG_TOUCHSCREEN_AD7879_MODULE)
{
.modalias = "ad7879",
.platform_data = &bfin_ad7879_ts_info,
.irq = IRQ_PF7,
.max_speed_hz = 5000000, /* max spi clock (SCK) speed in HZ */
.bus_num = 0,
.chip_select = 1,
.controller_data = &spi_ad7879_chip_info,
.mode = SPI_CPHA | SPI_CPOL,
},
#endif
#if defined(CONFIG_SPI_SPIDEV) || defined(CONFIG_SPI_SPIDEV_MODULE)
{
.modalias = "spidev",
@ -742,7 +776,7 @@ static struct spi_board_info bfin_spi_board_info[] __initdata = {
.modalias = "bfin-lq035q1-spi",
.max_speed_hz = 20000000, /* max spi clock (SCK) speed in HZ */
.bus_num = 0,
.chip_select = 1,
.chip_select = 2,
.controller_data = &lq035q1_spi_chip_info,
.mode = SPI_CPHA | SPI_CPOL,
},
@ -799,7 +833,7 @@ static struct platform_device bfin_fb_adv7393_device = {
static struct bfin_lq035q1fb_disp_info bfin_lq035q1_data = {
.mode = LQ035_NORM | LQ035_RGB | LQ035_RL | LQ035_TB,
.use_bl = 1,
.use_bl = 0, /* let something else control the LCD Blacklight */
.gpio_bl = GPIO_PF7,
};