OMAP: Enable DSS2 for OMAP3EVM board

Signed-off-by: Vaibhav Hiremath <hvaibhav@ti.com>
[tomi.valkeinen@nokia.com: removed evm defconfig changes]
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@nokia.com>

1 files changed, 235 insertions, 11 deletions

diff --git a/arch/arm/mach-omap2/board-omap3evm.c b/arch/arm/mach-omap2/board-omap3evm.c
index 34de1785157..822df79ce89 100644
--- a/arch/arm/mach-omap2/board-omap3evm.c
+++ b/arch/arm/mach-omap2/board-omap3evm.c
@@ -41,6 +41,7 @@
 #include <plat/usb.h>
 #include <plat/common.h>
 #include <plat/mcspi.h>
+#include <plat/display.h>
 
 #include "mux.h"
 #include "sdram-micron-mt46h32m32lf-6.h"
@@ -147,6 +148,187 @@ static inline void __init omap3evm_init_smsc911x(void)
 static inline void __init omap3evm_init_smsc911x(void) { return; }
 #endif
 
+/*
+ * OMAP3EVM LCD Panel control signals
+ */
+#define OMAP3EVM_LCD_PANEL_LR           2
+#define OMAP3EVM_LCD_PANEL_UD           3
+#define OMAP3EVM_LCD_PANEL_INI          152
+#define OMAP3EVM_LCD_PANEL_ENVDD        153
+#define OMAP3EVM_LCD_PANEL_QVGA         154
+#define OMAP3EVM_LCD_PANEL_RESB         155
+#define OMAP3EVM_LCD_PANEL_BKLIGHT_GPIO 210
+#define OMAP3EVM_DVI_PANEL_EN_GPIO      199
+
+static int lcd_enabled;
+static int dvi_enabled;
+
+static void __init omap3_evm_display_init(void)
+{
+        int r;
+
+        r = gpio_request(OMAP3EVM_LCD_PANEL_RESB, "lcd_panel_resb");
+        if (r) {
+                printk(KERN_ERR "failed to get lcd_panel_resb\n");
+                return;
+        }
+        gpio_direction_output(OMAP3EVM_LCD_PANEL_RESB, 1);
+
+        r = gpio_request(OMAP3EVM_LCD_PANEL_INI, "lcd_panel_ini");
+        if (r) {
+                printk(KERN_ERR "failed to get lcd_panel_ini\n");
+                goto err_1;
+        }
+        gpio_direction_output(OMAP3EVM_LCD_PANEL_INI, 1);
+
+        r = gpio_request(OMAP3EVM_LCD_PANEL_QVGA, "lcd_panel_qvga");
+        if (r) {
+                printk(KERN_ERR "failed to get lcd_panel_qvga\n");
+                goto err_2;
+        }
+        gpio_direction_output(OMAP3EVM_LCD_PANEL_QVGA, 0);
+
+        r = gpio_request(OMAP3EVM_LCD_PANEL_LR, "lcd_panel_lr");
+        if (r) {
+                printk(KERN_ERR "failed to get lcd_panel_lr\n");
+                goto err_3;
+        }
+        gpio_direction_output(OMAP3EVM_LCD_PANEL_LR, 1);
+
+        r = gpio_request(OMAP3EVM_LCD_PANEL_UD, "lcd_panel_ud");
+        if (r) {
+                printk(KERN_ERR "failed to get lcd_panel_ud\n");
+                goto err_4;
+        }
+        gpio_direction_output(OMAP3EVM_LCD_PANEL_UD, 1);
+
+        r = gpio_request(OMAP3EVM_LCD_PANEL_ENVDD, "lcd_panel_envdd");
+        if (r) {
+                printk(KERN_ERR "failed to get lcd_panel_envdd\n");
+                goto err_5;
+        }
+        gpio_direction_output(OMAP3EVM_LCD_PANEL_ENVDD, 0);
+
+        return;
+
+err_5:
+        gpio_free(OMAP3EVM_LCD_PANEL_UD);
+err_4:
+        gpio_free(OMAP3EVM_LCD_PANEL_LR);
+err_3:
+        gpio_free(OMAP3EVM_LCD_PANEL_QVGA);
+err_2:
+        gpio_free(OMAP3EVM_LCD_PANEL_INI);
+err_1:
+        gpio_free(OMAP3EVM_LCD_PANEL_RESB);
+
+}
+
+static int omap3_evm_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(OMAP3EVM_LCD_PANEL_ENVDD, 0);
+
+        if (get_omap3_evm_rev() >= OMAP3EVM_BOARD_GEN_2)
+                gpio_set_value(OMAP3EVM_LCD_PANEL_BKLIGHT_GPIO, 0);
+        else
+                gpio_set_value(OMAP3EVM_LCD_PANEL_BKLIGHT_GPIO, 1);
+
+        lcd_enabled = 1;
+        return 0;
+}
+
+static void omap3_evm_disable_lcd(struct omap_dss_device *dssdev)
+{
+        gpio_set_value(OMAP3EVM_LCD_PANEL_ENVDD, 1);
+
+        if (get_omap3_evm_rev() >= OMAP3EVM_BOARD_GEN_2)
+                gpio_set_value(OMAP3EVM_LCD_PANEL_BKLIGHT_GPIO, 1);
+        else
+                gpio_set_value(OMAP3EVM_LCD_PANEL_BKLIGHT_GPIO, 0);
+
+        lcd_enabled = 0;
+}
+
+static struct omap_dss_device omap3_evm_lcd_device = {
+        .name                   = "lcd",
+        .driver_name            = "sharp_ls_panel",
+        .type                   = OMAP_DISPLAY_TYPE_DPI,
+        .phy.dpi.data_lines     = 18,
+        .platform_enable        = omap3_evm_enable_lcd,
+        .platform_disable       = omap3_evm_disable_lcd,
+};
+
+static int omap3_evm_enable_tv(struct omap_dss_device *dssdev)
+{
+        return 0;
+}
+
+static void omap3_evm_disable_tv(struct omap_dss_device *dssdev)
+{
+}
+
+static struct omap_dss_device omap3_evm_tv_device = {
+        .name                   = "tv",
+        .driver_name            = "venc",
+        .type                   = OMAP_DISPLAY_TYPE_VENC,
+        .phy.venc.type          = OMAP_DSS_VENC_TYPE_SVIDEO,
+        .platform_enable        = omap3_evm_enable_tv,
+        .platform_disable       = omap3_evm_disable_tv,
+};
+
+static int omap3_evm_enable_dvi(struct omap_dss_device *dssdev)
+{
+        if (lcd_enabled) {
+                printk(KERN_ERR "cannot enable DVI, LCD is enabled\n");
+                return -EINVAL;
+        }
+
+        gpio_set_value(OMAP3EVM_DVI_PANEL_EN_GPIO, 1);
+
+        dvi_enabled = 1;
+        return 0;
+}
+
+static void omap3_evm_disable_dvi(struct omap_dss_device *dssdev)
+{
+        gpio_set_value(OMAP3EVM_DVI_PANEL_EN_GPIO, 0);
+
+        dvi_enabled = 0;
+}
+
+static struct omap_dss_device omap3_evm_dvi_device = {
+        .name                   = "dvi",
+        .driver_name            = "generic_panel",
+        .type                   = OMAP_DISPLAY_TYPE_DPI,
+        .phy.dpi.data_lines     = 24,
+        .platform_enable        = omap3_evm_enable_dvi,
+        .platform_disable       = omap3_evm_disable_dvi,
+};
+
+static struct omap_dss_device *omap3_evm_dss_devices[] = {
+        &omap3_evm_lcd_device,
+        &omap3_evm_tv_device,
+        &omap3_evm_dvi_device,
+};
+
+static struct omap_dss_board_info omap3_evm_dss_data = {
+        .num_devices    = ARRAY_SIZE(omap3_evm_dss_devices),
+        .devices        = omap3_evm_dss_devices,
+        .default_device = &omap3_evm_lcd_device,
+};
+
+static struct platform_device omap3_evm_dss_device = {
+        .name           = "omapdss",
+        .id             = -1,
+        .dev            = {
+                .platform_data = &omap3_evm_dss_data,
+        },
+};
+
 static struct regulator_consumer_supply omap3evm_vmmc1_supply = {
         .supply                 = "vmmc",
 };
@@ -236,6 +418,14 @@ static int omap3evm_twl_gpio_setup(struct device *dev,
          * the P2 connector; notably LEDA for the LCD backlight.
          */
 
+        /* TWL4030_GPIO_MAX + 0 == ledA, LCD Backlight control */
+        gpio_request(gpio + TWL4030_GPIO_MAX, "EN_LCD_BKL");
+        gpio_direction_output(gpio + TWL4030_GPIO_MAX, 0);
+
+        /* gpio + 7 == DVI Enable */
+        gpio_request(gpio + 7, "EN_DVI");
+        gpio_direction_output(gpio + 7, 0);
+
         /* TWL4030_GPIO_MAX + 1 == ledB (out, active low LED) */
         gpio_leds[2].gpio = gpio + TWL4030_GPIO_MAX + 1;
 
@@ -300,6 +490,47 @@ static struct twl4030_codec_data omap3evm_codec_data = {
         .audio = &omap3evm_audio_data,
 };
 
+static struct regulator_consumer_supply omap3_evm_vdda_dac_supply = {
+        .supply         = "vdda_dac",
+        .dev            = &omap3_evm_dss_device.dev,
+};
+
+/* VDAC for DSS driving S-Video */
+static struct regulator_init_data omap3_evm_vdac = {
+        .constraints = {
+                .min_uV                 = 1800000,
+                .max_uV                 = 1800000,
+                .apply_uV               = true,
+                .valid_modes_mask       = REGULATOR_MODE_NORMAL
+                                        | REGULATOR_MODE_STANDBY,
+                .valid_ops_mask         = REGULATOR_CHANGE_MODE
+                                        | REGULATOR_CHANGE_STATUS,
+        },
+        .num_consumer_supplies  = 1,
+        .consumer_supplies      = &omap3_evm_vdda_dac_supply,
+};
+
+/* VPLL2 for digital video outputs */
+static struct regulator_consumer_supply omap3_evm_vpll2_supply = {
+        .supply         = "vdvi",
+        .dev            = &omap3_evm_lcd_device.dev,
+};
+
+static struct regulator_init_data omap3_evm_vpll2 = {
+        .constraints = {
+                .name                   = "VDVI",
+                .min_uV                 = 1800000,
+                .max_uV                 = 1800000,
+                .apply_uV               = true,
+                .valid_modes_mask       = REGULATOR_MODE_NORMAL
+                                        | REGULATOR_MODE_STANDBY,
+                .valid_ops_mask         = REGULATOR_CHANGE_MODE
+                                        | REGULATOR_CHANGE_STATUS,
+        },
+        .num_consumer_supplies  = 1,
+        .consumer_supplies      = &omap3_evm_vpll2_supply,
+};
+
 static struct twl4030_platform_data omap3evm_twldata = {
         .irq_base       = TWL4030_IRQ_BASE,
         .irq_end        = TWL4030_IRQ_END,
@@ -310,6 +541,8 @@ static struct twl4030_platform_data omap3evm_twldata = {
         .usb            = &omap3evm_usb_data,
         .gpio           = &omap3evm_gpio_data,
         .codec          = &omap3evm_codec_data,
+        .vdac           = &omap3_evm_vdac,
+        .vpll2          = &omap3_evm_vpll2,
 };
 
 static struct i2c_board_info __initdata omap3evm_i2c_boardinfo[] = {
@@ -337,15 +570,6 @@ static int __init omap3_evm_i2c_init(void)
         return 0;
 }
 
-static struct platform_device omap3_evm_lcd_device = {
-        .name           = "omap3evm_lcd",
-        .id             = -1,
-};
-
-static struct omap_lcd_config omap3_evm_lcd_config __initdata = {
-        .ctrl_name      = "internal",
-};
-
 static void ads7846_dev_init(void)
 {
         if (gpio_request(OMAP3_EVM_TS_GPIO, "ADS7846 pendown") < 0)
@@ -393,7 +617,6 @@ struct spi_board_info omap3evm_spi_board_info[] = {
 };
 
 static struct omap_board_config_kernel omap3_evm_config[] __initdata = {
-        { OMAP_TAG_LCD,         &omap3_evm_lcd_config },
 };
 
 static void __init omap3_evm_init_irq(void)
@@ -406,7 +629,7 @@ static void __init omap3_evm_init_irq(void)
 }
 
 static struct platform_device *omap3_evm_devices[] __initdata = {
-        &omap3_evm_lcd_device,
+        &omap3_evm_dss_device,
 };
 
 static struct ehci_hcd_omap_platform_data ehci_pdata __initconst = {
@@ -473,6 +696,7 @@ static void __init omap3_evm_init(void)
         usb_ehci_init(&ehci_pdata);
         ads7846_dev_init();
         omap3evm_init_smsc911x();
+        omap3_evm_display_init();
 }
 
 static void __init omap3_evm_map_io(void)