OMAP3EVM: Made backlight GPIO default state to off

If you choose default output to DVI, the LCD backlight used to
stay on, since panel->disable function never gets called.

So, during init put backlight GPIO to off state and the driver
code will decide which output to enable.

Signed-off-by: Vaibhav Hiremath <hvaibhav@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

1 files changed, 8 insertions, 2 deletions

diff --git a/arch/arm/mach-omap2/board-omap3evm.c b/arch/arm/mach-omap2/board-omap3evm.c
index 36dac55b235c..4f2574c35ddf 100644
--- a/arch/arm/mach-omap2/board-omap3evm.c
+++ b/arch/arm/mach-omap2/board-omap3evm.c
@@ -456,6 +456,8 @@ static struct platform_device leds_gpio = {
 static int omap3evm_twl_gpio_setup(struct device *dev,
                 unsigned gpio, unsigned ngpio)
 {
+        int r;
+
         /* gpio + 0 is "mmc0_cd" (input/IRQ) */
         omap_mux_init_gpio(63, OMAP_PIN_INPUT);
         mmc[0].gpio_cd = gpio + 0;
@@ -471,8 +473,12 @@ static int omap3evm_twl_gpio_setup(struct device *dev,
          */
 
         /* 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);
+        r = gpio_request(gpio + TWL4030_GPIO_MAX, "EN_LCD_BKL");
+        if (!r)
+                r = gpio_direction_output(gpio + TWL4030_GPIO_MAX,
+                        (get_omap3_evm_rev() >= OMAP3EVM_BOARD_GEN_2) ? 1 : 0);
+        if (r)
+                printk(KERN_ERR "failed to get/set lcd_bkl gpio\n");
 
         /* gpio + 7 == DVI Enable */
         gpio_request(gpio + 7, "EN_DVI");