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>
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@ -38,6 +38,7 @@
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#include <linux/mtd/physmap.h>
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#include <linux/usb/gpio_vbus.h>
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#include <linux/reboot.h>
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#include <linux/regulator/fixed.h>
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#include <linux/regulator/max1586.h>
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#include <linux/slab.h>
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#include <linux/i2c/pxa-i2c.h>
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@ -714,6 +715,10 @@ static struct gpio global_gpios[] = {
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{ GPIO56_MT9M111_nOE, GPIOF_OUT_INIT_LOW, "Camera nOE" },
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};
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static struct regulator_consumer_supply fixed_5v0_consumers[] = {
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REGULATOR_SUPPLY("power", "pwm-backlight"),
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};
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static void __init mioa701_machine_init(void)
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{
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int rc;
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@ -753,6 +758,10 @@ static void __init mioa701_machine_init(void)
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pxa_set_i2c_info(&i2c_pdata);
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pxa27x_set_i2c_power_info(NULL);
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pxa_set_camera_info(&mioa701_pxacamera_platform_data);
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regulator_register_always_on(0, "fixed-5.0V", fixed_5v0_consumers,
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ARRAY_SIZE(fixed_5v0_consumers),
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5000000);
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}
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static void mioa701_machine_exit(void)
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