OMAP: AM3517: Enable DSS2 for AM3517EVM board
Signed-off-by: Vaibhav Hiremath <hvaibhav@ti.com>
[tomi.valkeinen@nokia.com: removed defconfig changes]
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@nokia.com>
diff --git a/arch/arm/mach-omap2/board-am3517evm.c b/arch/arm/mach-omap2/board-am3517evm.c
index b4e6eca..54af5f8 100644
--- a/arch/arm/mach-omap2/board-am3517evm.c
+++ b/arch/arm/mach-omap2/board-am3517evm.c
@@ -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 platform_device *am3517_evm_devices[] __initdata = {
+ &am3517_evm_dss_device,
};
static void __init am3517_evm_init_irq(void)
@@ -78,6 +221,8 @@
omap_serial_init();
usb_ehci_init(&ehci_pdata);
+ /* DSS */
+ am3517_evm_display_init();
}
static void __init am3517_evm_map_io(void)