[PATCH v2 16/21] ARM: pxa: magician: Add support for alternative LCD backlight

Petr Cvek
2015-08-17T22:04:16Z

Add support for alternative LCD backlight with GPIO (no brightness).

Signed-off-by: Petr Cvek <petr.cvek@tul.cz>
---
arch/arm/mach-pxa/magician.c | 22 +++++++++++++++++++++-
1 file changed, 21 insertions(+), 1 deletion(-)

diff --git a/arch/arm/mach-pxa/magician.c b/arch/arm/mach-pxa/magician.c
index 2ec630e..780cc3d 100644
--- a/arch/arm/mach-pxa/magician.c
+++ b/arch/arm/mach-pxa/magician.c
@@ -102,6 +102,8 @@
#include <mach/udc.h>
#include <mach/pxa27x-udc.h>

+#include <linux/platform_data/gpio_backlight.h>
+
#include "devices.h"
#include "generic.h"

@@ -549,6 +551,21 @@ static struct regulator_consumer_supply pwm_backlight_supply[] = {
REGULATOR_SUPPLY("power", "pwm_backlight"),
};

+/* Backlight controlled by single GPIO (alternative) */
+static struct gpio_backlight_platform_data gpio_backlight_data = {
+/* .fbdev = &pxa_device_fb.dev, */
+ .gpio = EGPIO_MAGICIAN_BL_POWER,
+ .def_value = 1,
+ .name = "backlight",
+};
+
+static struct platform_device gpio_backlight = {
+ .name = "gpio-backlight",
+ .dev = {
+ .platform_data = &gpio_backlight_data,
+ },
+};
+
/*
* LEDs
*/
@@ -1269,7 +1286,6 @@ static struct platform_device *devices[] __initdata = {
&gpio_keys,
&egpio,
&strataflash,
- &pwm_backlight,
&pasic3,
&vads7846_device,
&bq24022,
@@ -1285,6 +1301,10 @@ static struct platform_device *devices[] __initdata = {
#if !(IS_ENABLED(CONFIG_USB_PXA27X))
&gpio_vbus,
#endif
+
+ /* NOTICE mutually exclusive */
+ &pwm_backlight,
+ &gpio_backlight,
};

/*
--
1.7.12.1