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>

1 files changed, 2 insertions, 49 deletions

diff --git a/arch/arm/mach-omap2/board-omap3evm.c b/arch/arm/mach-omap2/board-omap3evm.c
index 3fc85c6fc55..376ea87dce6 100644
--- a/arch/arm/mach-omap2/board-omap3evm.c
+++ b/arch/arm/mach-omap2/board-omap3evm.c
@@ -50,6 +50,7 @@
 #include "mux.h"
 #include "sdram-micron-mt46h32m32lf-6.h"
 #include "hsmmc.h"
+#include "common-board-devices.h"
 
 #define OMAP3_EVM_TS_GPIO	175
 #define OMAP3_EVM_EHCI_VBUS	22
@@ -630,51 +631,6 @@ static int __init omap3_evm_i2c_init(void)
 	return 0;
 }
 
-static void ads7846_dev_init(void)
-{
-	if (gpio_request(OMAP3_EVM_TS_GPIO, "ADS7846 pendown") < 0)
-		printk(KERN_ERR "can't get ads7846 pen down GPIO\n");
-
-	gpio_direction_input(OMAP3_EVM_TS_GPIO);
-	gpio_set_debounce(OMAP3_EVM_TS_GPIO, 310);
-}
-
-static int ads7846_get_pendown_state(void)
-{
-	return !gpio_get_value(OMAP3_EVM_TS_GPIO);
-}
-
-static struct ads7846_platform_data ads7846_config = {
-	.x_max			= 0x0fff,
-	.y_max			= 0x0fff,
-	.x_plate_ohms		= 180,
-	.pressure_max		= 255,
-	.debounce_max		= 10,
-	.debounce_tol		= 3,
-	.debounce_rep		= 1,
-	.get_pendown_state	= ads7846_get_pendown_state,
-	.keep_vref_on		= 1,
-	.settle_delay_usecs	= 150,
-	.wakeup				= true,
-};
-
-static struct omap2_mcspi_device_config ads7846_mcspi_config = {
-	.turbo_mode	= 0,
-	.single_channel	= 1,	/* 0: slave, 1: master */
-};
-
-static struct spi_board_info omap3evm_spi_board_info[] = {
-	[0] = {
-		.modalias		= "ads7846",
-		.bus_num		= 1,
-		.chip_select		= 0,
-		.max_speed_hz		= 1500000,
-		.controller_data	= &ads7846_mcspi_config,
-		.irq			= OMAP_GPIO_IRQ(OMAP3_EVM_TS_GPIO),
-		.platform_data		= &ads7846_config,
-	},
-};
-
 static struct omap_board_config_kernel omap3_evm_config[] __initdata = {
 };
 
@@ -792,9 +748,6 @@ static void __init omap3_evm_init(void)
 
 	omap_display_init(&omap3_evm_dss_data);
 
-	spi_register_board_info(omap3evm_spi_board_info,
-				ARRAY_SIZE(omap3evm_spi_board_info));
-
 	omap_serial_init();
 
 	/* OMAP3EVM uses ISP1504 phy and so register nop transceiver */
@@ -827,7 +780,7 @@ static void __init omap3_evm_init(void)
 	}
 	usb_musb_init(&musb_board_data);
 	usbhs_init(&usbhs_bdata);
-	ads7846_dev_init();
+	omap_ads7846_init(1, OMAP3_EVM_TS_GPIO, 310, NULL);
 	omap3evm_init_smsc911x();
 	omap3_evm_display_init();