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-ldp.c b/arch/arm/mach-omap2/board-ldp.c
index ea9f049..155b423 100644
--- a/arch/arm/mach-omap2/board-ldp.c
+++ b/arch/arm/mach-omap2/board-ldp.c
@@ -22,7 +22,6 @@
#include <linux/err.h>
#include <linux/clk.h>
#include <linux/spi/spi.h>
-#include <linux/spi/ads7846.h>
#include <linux/regulator/machine.h>
#include <linux/i2c/twl.h>
#include <linux/io.h>
@@ -49,6 +48,7 @@
#include "mux.h"
#include "hsmmc.h"
#include "control.h"
+#include "common-board-devices.h"
#define LDP_SMSC911X_CS 1
#define LDP_SMSC911X_GPIO 152
@@ -168,55 +168,6 @@
},
};
-static int ts_gpio;
-
-/**
- * @brief ads7846_dev_init : Requests & sets GPIO line for pen-irq
- *
- * @return - void. If request gpio fails then Flag KERN_ERR.
- */
-static void ads7846_dev_init(void)
-{
- if (gpio_request(ts_gpio, "ads7846 irq") < 0) {
- printk(KERN_ERR "can't get ads746 pen down GPIO\n");
- return;
- }
-
- gpio_direction_input(ts_gpio);
- gpio_set_debounce(ts_gpio, 310);
-}
-
-static int ads7846_get_pendown_state(void)
-{
- return !gpio_get_value(ts_gpio);
-}
-
-static struct ads7846_platform_data tsc2046_config __initdata = {
- .get_pendown_state = ads7846_get_pendown_state,
- .keep_vref_on = 1,
-};
-
-static struct omap2_mcspi_device_config tsc2046_mcspi_config = {
- .turbo_mode = 0,
- .single_channel = 1, /* 0: slave, 1: master */
-};
-
-static struct spi_board_info ldp_spi_board_info[] __initdata = {
- [0] = {
- /*
- * TSC2046 operates at a max freqency of 2MHz, so
- * operate slightly below at 1.5MHz
- */
- .modalias = "ads7846",
- .bus_num = 1,
- .chip_select = 0,
- .max_speed_hz = 1500000,
- .controller_data = &tsc2046_mcspi_config,
- .irq = 0,
- .platform_data = &tsc2046_config,
- },
-};
-
static struct omap_smsc911x_platform_data smsc911x_cfg = {
.cs = LDP_SMSC911X_CS,
.gpio_irq = LDP_SMSC911X_GPIO,
@@ -399,11 +350,7 @@
ldp_init_smsc911x();
omap_i2c_init();
platform_add_devices(ldp_devices, ARRAY_SIZE(ldp_devices));
- ts_gpio = 54;
- ldp_spi_board_info[0].irq = gpio_to_irq(ts_gpio);
- spi_register_board_info(ldp_spi_board_info,
- ARRAY_SIZE(ldp_spi_board_info));
- ads7846_dev_init();
+ omap_ads7846_init(1, 54, 310, NULL);
omap_serial_init();
usb_musb_init(&musb_board_data);
board_nand_init(ldp_nand_partitions,