ARM: OMAP: osk+mistral backlight, power, board specific

Mistral-specific:

  - Add PWL-driven LCD backlight device

  - Apply power to the board even when the LCD isn't configured; things
    like EEPROM, temperature sensor, and wakeup switch depend on it.

Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Tony Lindgren <tony@atomide.com>

diff --git a/arch/arm/mach-omap1/board-osk.c b/arch/arm/mach-omap1/board-osk.c
index 83f6e09bf07936901fe2c43e3e8f579f042d7843..1825781f4354468b3ef6893943fd39f36e1accfc 100644 (file)
--- a/arch/arm/mach-omap1/board-osk.c
+++ b/arch/arm/mach-omap1/board-osk.c
@@ -293,6 +293,18 @@ static struct platform_device osk5912_kp_device = {
        .resource       = osk5912_kp_resources,
 };
 
+static struct omap_backlight_config mistral_bl_data = {
+       .default_intensity      = 0xa0,
+};
+
+static struct platform_device mistral_bl_device = {
+       .name           = "omap-bl",
+       .id             = -1,
+       .dev            = {
+               .platform_data = &mistral_bl_data,
+       },
+};
+
 static struct platform_device osk5912_lcd_device = {
        .name           = "lcd_osk",
        .id             = -1,
@@ -300,6 +312,7 @@ static struct platform_device osk5912_lcd_device = {
 
 static struct platform_device *mistral_devices[] __initdata = {
        &osk5912_kp_device,
+       &mistral_bl_device,
        &osk5912_lcd_device,
 };
 
@@ -405,6 +418,15 @@ static void __init osk_mistral_init(void)
        } else
                printk(KERN_ERR "OSK+Mistral: wakeup button is awol\n");
 
+       /* LCD:  backlight, and power; power controls other devices on the
+        * board, like the touchscreen, EEPROM, and wakeup (!) switch.
+        */
+       omap_cfg_reg(PWL);
+       if (omap_request_gpio(2) == 0) {
+               omap_set_gpio_direction(2, 0 /* out */);
+               omap_set_gpio_dataout(2, 1 /* on */);
+       }
+
        platform_add_devices(mistral_devices, ARRAY_SIZE(mistral_devices));
 }
 #else