[PATCH v2 16/21] ARM: pxa: magician: Add support for alternative LCD backlight
From: Petr Cvek <hidden>
Date: 2015-08-17 22:04:16
Also in:
linux-arm-kernel, linux-pm
Subsystem:
arm port, pxa2xx/pxa3xx support, the rest · Maintainers:
Russell King, Daniel Mack, Haojian Zhuang, Robert Jarzmik, Linus Torvalds
Possibly related (same subject, not in this thread)
- 2015-08-24 · [PATCH v2 16/21] ARM: pxa: magician: Add support for alternative LCD backlight · robert.jarzmik@free.fr (Robert Jarzmik)
- 2015-08-23 · [PATCH v2 16/21] ARM: pxa: magician: Add support for alternative LCD backlight · Petr Cvek <hidden>
- 2015-08-20 · [PATCH v2 16/21] ARM: pxa: magician: Add support for alternative LCD backlight · robert.jarzmik@free.fr (Robert Jarzmik)
Add support for alternative LCD backlight with GPIO (no brightness). Signed-off-by: Petr Cvek <redacted> --- 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