From: Vaibhav Hiremath <hvaibhav@ti.com>
Date: Tue, 25 Jan 2011 17:37:40 +0000 (+0000)
Subject: OMAP3EVM: Made backlight GPIO default state to off
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=42fc8cab020c4d848a969b7c0a80b591c35bb263;p=linux-beck.git

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>
---

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");