From: Vaibhav Hiremath <hvaib...@ti.com>
Tested -
- Validated all three outut interfaces (LCD, DVI and TV)
TODO:
- Support for Backlight control range (0 - 100)
- Enable selection for both S-Video and Composite TV out
- DVI color (VPLL2_DEV_GRP should be equal to 0x7)
Signed-off-by: Vaibhav Hiremath <hvaib...@ti.com>
---
arch/arm/configs/omap3_evm_defconfig | 51 +++++++-
arch/arm/mach-omap2/board-omap3evm.c | 234 ++++++++++++++++++++++++++++++++--
2 files changed, 273 insertions(+), 12 deletions(-)
diff --git a/arch/arm/configs/omap3_evm_defconfig
b/arch/arm/configs/omap3_evm_defconfig
index 28be17f..c9cc935 100644
--- a/arch/arm/configs/omap3_evm_defconfig
+++ b/arch/arm/configs/omap3_evm_defconfig
@@ -903,7 +903,56 @@ CONFIG_DAB=y
#
# CONFIG_VGASTATE is not set
CONFIG_VIDEO_OUTPUT_CONTROL=m
-# CONFIG_FB is not set
+CONFIG_FB=y
+# CONFIG_FIRMWARE_EDID is not set
+# CONFIG_FB_DDC is not set
+# CONFIG_FB_BOOT_VESA_SUPPORT is not set
+CONFIG_FB_CFB_FILLRECT=y
+CONFIG_FB_CFB_COPYAREA=y
+CONFIG_FB_CFB_IMAGEBLIT=y
+# CONFIG_FB_CFB_REV_PIXELS_IN_BYTE is not set
+# CONFIG_FB_SYS_FILLRECT is not set
+# CONFIG_FB_SYS_COPYAREA is not set
+# CONFIG_FB_SYS_IMAGEBLIT is not set
+# CONFIG_FB_FOREIGN_ENDIAN is not set
+# CONFIG_FB_SYS_FOPS is not set
+# CONFIG_FB_SVGALIB is not set
+# CONFIG_FB_MACMODES is not set
+# CONFIG_FB_BACKLIGHT is not set
+# CONFIG_FB_MODE_HELPERS is not set
+# CONFIG_FB_TILEBLITTING is not set
+
+#
+# Frame buffer hardware drivers
+#
+# CONFIG_FB_S1D13XXX is not set
+# CONFIG_FB_VIRTUAL is not set
+# CONFIG_FB_METRONOME is not set
+# CONFIG_FB_MB862XX is not set
+# CONFIG_FB_BROADSHEET is not set
+# CONFIG_FB_OMAP_BOOTLOADER_INIT is not set
+CONFIG_OMAP2_VRAM=y
+CONFIG_OMAP2_VRFB=y
+CONFIG_OMAP2_DSS=y
+CONFIG_OMAP2_VRAM_SIZE=4
+# CONFIG_OMAP2_DSS_DEBUG_SUPPORT is not set
+# CONFIG_OMAP2_DSS_RFBI is not set
+CONFIG_OMAP2_DSS_VENC=y
+# CONFIG_OMAP2_DSS_SDI is not set
+# CONFIG_OMAP2_DSS_DSI is not set
+# CONFIG_OMAP2_DSS_FAKE_VSYNC is not set
+CONFIG_OMAP2_DSS_MIN_FCK_PER_PCK=0
+CONFIG_FB_OMAP2=y
+# CONFIG_FB_OMAP2_DEBUG_SUPPORT is not set
+# CONFIG_FB_OMAP2_FORCE_AUTO_UPDATE is not set
+CONFIG_FB_OMAP2_NUM_FBS=3
+
+#
+# OMAP2/3 Display Device Drivers
+#
+CONFIG_PANEL_GENERIC=y
+# CONFIG_PANEL_SAMSUNG_LTE430WQ_F0C is not set
+CONFIG_PANEL_SHARP_LS037V7DW01=y
# CONFIG_BACKLIGHT_LCD_SUPPORT is not set
#
diff --git a/arch/arm/mach-omap2/board-omap3evm.c
b/arch/arm/mach-omap2/board-omap3evm.c
index 595beac..d488e29 100644
--- a/arch/arm/mach-omap2/board-omap3evm.c
+++ b/arch/arm/mach-omap2/board-omap3evm.c
@@ -22,6 +22,7 @@
#include <linux/input.h>
#include <linux/leds.h>
+#include <linux/regulator/machine.h>
#include <linux/spi/spi.h>
#include <linux/spi/ads7846.h>
#include <linux/i2c/twl4030.h>
@@ -37,6 +38,7 @@
#include <mach/common.h>
#include <mach/mcspi.h>
#include <mach/keypad.h>
+#include <mach/display.h>
#include "sdram-micron-mt46h32m32lf-6.h"
#include "mmc-twl4030.h"
@@ -90,6 +92,174 @@ static inline void __init omap3evm_init_smc911x(void)
gpio_direction_input(OMAP3EVM_ETHR_GPIO_IRQ);
}
+/*
+ * 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;
+ }
+
+ 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);
+ 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);
+ gpio_set_value(OMAP3EVM_LCD_PANEL_BKLIGHT_GPIO, 0);
+ lcd_enabled = 0;
+}
+
+static struct omap_dss_device omap3_evm_lcd_device = {
+ .type = OMAP_DISPLAY_TYPE_DPI,
+ .name = "lcd",
+ .driver_name = "sharp_ls_panel",
+ .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 = {
+ .type = OMAP_DISPLAY_TYPE_VENC,
+ .name = "tv",
+ .driver_name = "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 = {
+ .type = OMAP_DISPLAY_TYPE_DPI,
+ .name = "dvi",
+ .driver_name = "generic_panel",
+ .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 omap_uart_config omap3_evm_uart_config __initdata = {
.enabled_uarts = ((1 << 0) | (1 << 1) | (1 << 2)),
@@ -142,6 +312,14 @@ 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;
@@ -193,6 +371,47 @@ static struct twl4030_madc_platform_data
omap3evm_madc_data = {
.irq_line = 1,
};
+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,
@@ -202,6 +421,8 @@ static struct twl4030_platform_data omap3evm_twldata = {
.madc = &omap3evm_madc_data,
.usb = &omap3evm_usb_data,
.gpio = &omap3evm_gpio_data,
+ .vdac = &omap3_evm_vdac,
+ .vpll2 = &omap3_evm_vpll2,
};
static struct i2c_board_info __initdata omap3evm_i2c_boardinfo[] = {
@@ -222,15 +443,6 @@ 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)
@@ -287,11 +499,10 @@ static void __init omap3_evm_init_irq(void)
static struct omap_board_config_kernel omap3_evm_config[] __initdata = {
{ OMAP_TAG_UART, &omap3_evm_uart_config },
- { OMAP_TAG_LCD, &omap3_evm_lcd_config },
};
static struct platform_device *omap3_evm_devices[] __initdata = {
- &omap3_evm_lcd_device,
+ &omap3_evm_dss_device,
&omap3evm_smc911x_device,
};
@@ -310,6 +521,7 @@ static void __init omap3_evm_init(void)
usb_musb_init();
usb_ehci_init(EHCI_HCD_OMAP_MODE_PHY, true, true, 57, 61);
ads7846_dev_init();
+ omap3_evm_display_init();
}
static void __init omap3_evm_map_io(void)
--
1.6.2.4
--
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