[PATCH 03/14] OMAP2: Devkit8000: Enable DVI-D output

Thomas Weber
2010-05-18T12:06:07Z

This patch corrects the DVI-D output setup of Devkit8000.
Devkit8000 has different DVI reset pin with the BeagleBoard. On
Devkit8000 the TWL4030 GPIO_7 is assigned to do the job.

Signed-off-by: Kan-Ru Chen <kanru@0xlab.org>
Signed-off-by: Thomas Weber <weber@corscience.de>
---
arch/arm/mach-omap2/board-devkit8000.c | 15 +++++++++++++++
1 files changed, 15 insertions(+), 0 deletions(-)

diff --git a/arch/arm/mach-omap2/board-devkit8000.c b/arch/arm/mach-omap2/board-devkit8000.c
index e989136..c6b9ed4 100644
--- a/arch/arm/mach-omap2/board-devkit8000.c
+++ b/arch/arm/mach-omap2/board-devkit8000.c
@@ -140,13 +140,18 @@ static int devkit8000_panel_enable_lcd(struct omap_dss_device *dssdev)
static void devkit8000_panel_disable_lcd(struct omap_dss_device *dssdev)
{
}
+
static int devkit8000_panel_enable_dvi(struct omap_dss_device *dssdev)
{
+ if (dssdev->reset_gpio != -EINVAL)
+ gpio_set_value(dssdev->reset_gpio, 1);
return 0;
}

static void devkit8000_panel_disable_dvi(struct omap_dss_device *dssdev)
{
+ if (dssdev->reset_gpio != -EINVAL)
+ gpio_set_value(dssdev->reset_gpio, 0);
}

static int devkit8000_panel_enable_tv(struct omap_dss_device *dssdev)
@@ -186,6 +191,7 @@ static struct omap_dss_device devkit8000_dvi_device = {
.driver_name = "generic_panel",
.type = OMAP_DISPLAY_TYPE_DPI,
.phy.dpi.data_lines = 24,
+ .reset_gpio = -EINVAL, /* will be replaced */
.platform_enable = devkit8000_panel_enable_dvi,
.platform_disable = devkit8000_panel_disable_dvi,
};
@@ -272,6 +278,15 @@ static int devkit8000_twl_gpio_setup(struct device *dev,
devkit8000_vmmc1_supply.dev = mmc[0].dev;
devkit8000_vsim_supply.dev = mmc[0].dev;

+ /* TWL4030_GPIO_MAX + 1 == ledB, PMU_STAT (out, active low LED) */
+ gpio_leds[2].gpio = gpio + TWL4030_GPIO_MAX + 1;
+
+ /* gpio + 7 is "DVI_PD" (out, active low) */
+ devkit8000_dvi_device.reset_gpio = gpio + 7;
+ gpio_request(devkit8000_dvi_device.reset_gpio, "DVI PowerDown");
+ /* Disable until needed */
+ gpio_direction_output(devkit8000_dvi_device.reset_gpio, 0);
+
return 0;
}

--
1.6.4.4