diff options
| author | Thierry Reding <thierry.reding@gmail.com> | 2013-12-20 10:46:52 +0100 |
|---|---|---|
| committer | Haojian Zhuang <haojian.zhuang@gmail.com> | 2014-02-11 11:33:09 +0800 |
| commit | 902e6a0c7eba08ec978cea8304c6cb2ddce7b9dc (patch) | |
| tree | 580a9e35a67b95342bf93482cbdf36b3cca89c3a /arch | |
| parent | 38dbfb59d1175ef458d006556061adeaa8751b72 (diff) | |
ARM: pxa: Add dummy backlight power supply on Mitac Mio A701
Recent changes to the pwm-backlight driver have made the power supply
mandatory. There is code in the regulator core to deal with situations
where no regulator is specified and provide a dummy, but that works on
DT-based boards only.
The situation can be remedied by adding a dummy regulator during board
initialization.
Tested-by: Robert Jarzmik <robert.jarzmik@free.fr>
Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
Signed-off-by: Haojian Zhuang <haojian.zhuang@gmail.com>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/arm/mach-pxa/mioa701.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/arch/arm/mach-pxa/mioa701.c b/arch/arm/mach-pxa/mioa701.c index f70583fee59f..29997bde277d 100644 --- a/arch/arm/mach-pxa/mioa701.c +++ b/arch/arm/mach-pxa/mioa701.c @@ -38,6 +38,7 @@ #include <linux/mtd/physmap.h> #include <linux/usb/gpio_vbus.h> #include <linux/reboot.h> +#include <linux/regulator/fixed.h> #include <linux/regulator/max1586.h> #include <linux/slab.h> #include <linux/i2c/pxa-i2c.h> @@ -714,6 +715,10 @@ static struct gpio global_gpios[] = { { GPIO56_MT9M111_nOE, GPIOF_OUT_INIT_LOW, "Camera nOE" }, }; +static struct regulator_consumer_supply fixed_5v0_consumers[] = { + REGULATOR_SUPPLY("power", "pwm-backlight"), +}; + static void __init mioa701_machine_init(void) { int rc; @@ -753,6 +758,10 @@ static void __init mioa701_machine_init(void) pxa_set_i2c_info(&i2c_pdata); pxa27x_set_i2c_power_info(NULL); pxa_set_camera_info(&mioa701_pxacamera_platform_data); + + regulator_register_always_on(0, "fixed-5.0V", fixed_5v0_consumers, + ARRAY_SIZE(fixed_5v0_consumers), + 5000000); } static void mioa701_machine_exit(void) |