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omap3: beaglexm: fix DVI reset GPIO 

GPIO reset line for Beagle XM is different from vanilla beagle
so we populate it as part of gpio update routine.

This in part fixes the issue of display not functioning on beagle XM
platform.

[nm@ti.com: split up, added descriptive changelogs]
Signed-off-by: Nishanth Menon <nm@ti.com>
Signed-off-by: Koen Kooi <koen@beagleboard.org>
Signed-off-by: Tony Lindgren <tony@atomide.com>
This commit is contained in:
Koen Kooi 2011-01-11 17:13:36 +00:00 committed by Tony Lindgren
parent 68fc3e152c
commit f8362d2155
1 changed files with 7 additions and 1 deletions
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8
arch/arm/mach-omap2/board-omap3beagle.c
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@ -199,7 +199,7 @@ static struct omap_dss_device beagle_dvi_device = {
.name = "dvi",
.driver_name = "generic_panel",
.phy.dpi.data_lines = 24,
.reset_gpio = 170,
.reset_gpio = -EINVAL,
.platform_enable = beagle_enable_dvi,
.platform_disable = beagle_disable_dvi,
};
@ -307,6 +307,12 @@ static int beagle_twl_gpio_setup(struct device *dev,
else
gpio_direction_output(gpio + TWL4030_GPIO_MAX, 0);
/* DVI reset GPIO is different between beagle revisions */
if (omap3_beagle_get_rev() == OMAP3BEAGLE_BOARD_XM)
beagle_dvi_device.reset_gpio = 129;
else
beagle_dvi_device.reset_gpio = 170;
/* TWL4030_GPIO_MAX + 1 == ledB, PMU_STAT (out, active low LED) */
gpio_leds[2].gpio = gpio + TWL4030_GPIO_MAX + 1;