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omap: consolidate touch screen initialization among different boards

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Add common-board-devices.c that will contain the code for peripheral
devices initializatoin shared between multiple boards.
Start small with touchscreen initialization.

Signed-off-by: Mike Rapoport <mike@compulab.co.il>
Signed-off-by: Tony Lindgren <tony@atomide.com>
This commit is contained in:
Mike Rapoport
2011-04-25 01:09:05 +03:00
committed by Tony Lindgren
parent d14f81741f
commit 96974a249b
12 changed files with 128 additions and 444 deletions
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36
arch/arm/mach-omap2/board-omap3touchbook.c
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@@ -52,6 +52,7 @@
#include "mux.h"
#include "hsmmc.h"
#include "timer-gp.h"
#include "common-board-devices.h"
#include <asm/setup.h>
@@ -301,19 +302,7 @@ static int __init omap3_touchbook_i2c_init(void)
return 0;
}
static void __init omap3_ads7846_init(void)
{
if (gpio_request(OMAP3_TS_GPIO, "ads7846_pen_down")) {
printk(KERN_ERR "Failed to request GPIO %d for "
"ads7846 pen down IRQ\n", OMAP3_TS_GPIO);
return;
}
gpio_direction_input(OMAP3_TS_GPIO);
gpio_set_debounce(OMAP3_TS_GPIO, 310);
}
static struct ads7846_platform_data ads7846_config = {
static struct ads7846_platform_data ads7846_pdata = {
.x_min = 100,
.y_min = 265,
.x_max = 3950,
@@ -327,23 +316,6 @@ static struct ads7846_platform_data ads7846_config = {
.keep_vref_on = 1,
};
static struct omap2_mcspi_device_config ads7846_mcspi_config = {
.turbo_mode = 0,
.single_channel = 1, /* 0: slave, 1: master */
};
static struct spi_board_info omap3_ads7846_spi_board_info[] __initdata = {
{
.modalias = "ads7846",
.bus_num = 4,
.chip_select = 0,
.max_speed_hz = 1500000,
.controller_data = &ads7846_mcspi_config,
.irq = OMAP_GPIO_IRQ(OMAP3_TS_GPIO),
.platform_data = &ads7846_config,
}
};
static struct gpio_led gpio_leds[] = {
{
.name = "touchbook::usr0",
@@ -526,9 +498,7 @@ static void __init omap3_touchbook_init(void)
gpio_direction_output(176, true);
/* Touchscreen and accelerometer */
spi_register_board_info(omap3_ads7846_spi_board_info,
ARRAY_SIZE(omap3_ads7846_spi_board_info));
omap3_ads7846_init();
omap_ads7846_init(4, OMAP3_TS_GPIO, 310, &ads7846_pdata);
usb_musb_init(&musb_board_data);
usbhs_init(&usbhs_bdata);
omap3touchbook_flash_init();