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Commit c3d33329 authored by Vaibhav Hiremath's avatar Vaibhav Hiremath Committed by Tomi Valkeinen
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OMAP: AM3517: Enable DSS2 for AM3517EVM board 



Signed-off-by: default avatarVaibhav Hiremath <hvaibhav@ti.com>
[tomi.valkeinen@nokia.com: removed defconfig changes]
Signed-off-by: default avatarTomi Valkeinen <tomi.valkeinen@nokia.com>
parent 703e3061

arch/arm/mach-omap2/board-am3517evm.c

+145 −0
Original line number Diff line number Diff line
@@ -29,9 +29,151 @@ 
#include <plat/board.h>

#include <plat/common.h>

#include <plat/usb.h>

#include <plat/display.h>



#include "mux.h"



#define LCD_PANEL_PWR		176

#define LCD_PANEL_BKLIGHT_PWR	182

#define LCD_PANEL_PWM		181



static int lcd_enabled;

static int dvi_enabled;



static void __init am3517_evm_display_init(void)

{

	int r;



	omap_mux_init_gpio(LCD_PANEL_PWR, OMAP_PIN_INPUT_PULLUP);

	omap_mux_init_gpio(LCD_PANEL_BKLIGHT_PWR, OMAP_PIN_INPUT_PULLDOWN);

	omap_mux_init_gpio(LCD_PANEL_PWM, OMAP_PIN_INPUT_PULLDOWN);

	/*

	 * Enable GPIO 182 = LCD Backlight Power

	 */

	r = gpio_request(LCD_PANEL_BKLIGHT_PWR, "lcd_backlight_pwr");

	if (r) {

		printk(KERN_ERR "failed to get lcd_backlight_pwr\n");

		return;

	}

	gpio_direction_output(LCD_PANEL_BKLIGHT_PWR, 1);

	/*

	 * Enable GPIO 181 = LCD Panel PWM

	 */

	r = gpio_request(LCD_PANEL_PWM, "lcd_pwm");

	if (r) {

		printk(KERN_ERR "failed to get lcd_pwm\n");

		goto err_1;

	}

	gpio_direction_output(LCD_PANEL_PWM, 1);

	/*

	 * Enable GPIO 176 = LCD Panel Power enable pin

	 */

	r = gpio_request(LCD_PANEL_PWR, "lcd_panel_pwr");

	if (r) {

		printk(KERN_ERR "failed to get lcd_panel_pwr\n");

		goto err_2;

	}

	gpio_direction_output(LCD_PANEL_PWR, 1);



	printk(KERN_INFO "Display initialized successfully\n");

	return;



err_2:

	gpio_free(LCD_PANEL_PWM);

err_1:

	gpio_free(LCD_PANEL_BKLIGHT_PWR);

}



static int am3517_evm_panel_enable_lcd(struct omap_dss_device *dssdev)

{

	if (dvi_enabled) {

		printk(KERN_ERR "cannot enable LCD, DVI is enabled\n");

		return -EINVAL;

	}

	gpio_set_value(LCD_PANEL_PWR, 1);

	lcd_enabled = 1;



	return 0;

}



static void am3517_evm_panel_disable_lcd(struct omap_dss_device *dssdev)

{

	gpio_set_value(LCD_PANEL_PWR, 0);

	lcd_enabled = 0;

}



static struct omap_dss_device am3517_evm_lcd_device = {

	.type			= OMAP_DISPLAY_TYPE_DPI,

	.name			= "lcd",

	.driver_name		= "sharp_lq_panel",

	.phy.dpi.data_lines 	= 16,

	.platform_enable	= am3517_evm_panel_enable_lcd,

	.platform_disable	= am3517_evm_panel_disable_lcd,

};



static int am3517_evm_panel_enable_tv(struct omap_dss_device *dssdev)

{

	return 0;

}



static void am3517_evm_panel_disable_tv(struct omap_dss_device *dssdev)

{

}



static struct omap_dss_device am3517_evm_tv_device = {

	.type 			= OMAP_DISPLAY_TYPE_VENC,

	.name 			= "tv",

	.driver_name		= "venc",

	.phy.venc.type		= OMAP_DSS_VENC_TYPE_SVIDEO,

	.platform_enable	= am3517_evm_panel_enable_tv,

	.platform_disable	= am3517_evm_panel_disable_tv,

};



static int am3517_evm_panel_enable_dvi(struct omap_dss_device *dssdev)

{

	if (lcd_enabled) {

		printk(KERN_ERR "cannot enable DVI, LCD is enabled\n");

		return -EINVAL;

	}

	dvi_enabled = 1;



	return 0;

}



static void am3517_evm_panel_disable_dvi(struct omap_dss_device *dssdev)

{

	dvi_enabled = 0;

}



static struct omap_dss_device am3517_evm_dvi_device = {

	.type			= OMAP_DISPLAY_TYPE_DPI,

	.name			= "dvi",

	.driver_name		= "generic_panel",

	.phy.dpi.data_lines	= 24,

	.platform_enable	= am3517_evm_panel_enable_dvi,

	.platform_disable	= am3517_evm_panel_disable_dvi,

};



static struct omap_dss_device *am3517_evm_dss_devices[] = {

	&am3517_evm_lcd_device,

	&am3517_evm_tv_device,

	&am3517_evm_dvi_device,

};



static struct omap_dss_board_info am3517_evm_dss_data = {

	.num_devices	= ARRAY_SIZE(am3517_evm_dss_devices),

	.devices	= am3517_evm_dss_devices,

	.default_device	= &am3517_evm_lcd_device,

};



struct platform_device am3517_evm_dss_device = {

	.name		= "omapdss",

	.id		= -1,

	.dev		= {

		.platform_data	= &am3517_evm_dss_data,

	},

};



/*

 * Board initialization

 */
@@ -39,6 +181,7 @@ static struct omap_board_config_kernel am3517_evm_config[] __initdata = { 
};



static struct platform_device *am3517_evm_devices[] __initdata = {

	&am3517_evm_dss_device,

};



static void __init am3517_evm_init_irq(void)
@@ -78,6 +221,8 @@ static void __init am3517_evm_init(void) 


	omap_serial_init();

	usb_ehci_init(&ehci_pdata);

	/* DSS */

	am3517_evm_display_init();

}



static void __init am3517_evm_map_io(void)