omap: consolidate touch screen initialization among different boards
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>
diff --git a/arch/arm/mach-omap2/board-omap3touchbook.c b/arch/arm/mach-omap2/board-omap3touchbook.c
index 127cb17..15f9d7d 100644
--- a/arch/arm/mach-omap2/board-omap3touchbook.c
+++ b/arch/arm/mach-omap2/board-omap3touchbook.c
@@ -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 @@
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 @@
.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 @@
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();