The pwm-backlight driver now takes a mandatory regulator that is gotten
during driver probe. Initialize a dummy regulator to satisfy this
requirement.
Signed-off-by: Andrew Chew <achew@xxxxxxxxxx>
---
arch/arm/mach-exynos/mach-nuri.c | 7 +++++++
arch/arm/plat-samsung/dev-backlight.c | 9 +++++++++
2 files changed, 16 insertions(+)
diff --git a/arch/arm/mach-exynos/mach-nuri.c b/arch/arm/mach-exynos/mach-nuri.c
index 1ea7973..35e881e 100644
--- a/arch/arm/mach-exynos/mach-nuri.c
+++ b/arch/arm/mach-exynos/mach-nuri.c
@@ -294,6 +294,10 @@ static void nuri_bl_exit(struct device *dev)
gpio_free(EXYNOS4_GPE2(3));
}
+/* Dummy regulator for pwm-backlight driver */
+static struct regulator_consumer_supply backlight_supply =
+ REGULATOR_SUPPLY("enable", "pwm-backlight");
+
/* nuri pwm backlight */
static struct platform_pwm_backlight_data nuri_backlight_data = {
.pwm_id = 0,
@@ -1368,6 +1372,9 @@ static void __init nuri_machine_init(void)
nuri_ehci_init();
s3c_hsotg_set_platdata(&nuri_hsotg_pdata);
+ regulator_register_always_on(-1, "backlight-enable",
+ &backlight_supply, 1, 0);
+
/* Last */
platform_add_devices(nuri_devices, ARRAY_SIZE(nuri_devices));
}
diff --git a/arch/arm/plat-samsung/dev-backlight.c b/arch/arm/plat-samsung/dev-backlight.c
index 5f197dc..7277821 100644
--- a/arch/arm/plat-samsung/dev-backlight.c
+++ b/arch/arm/plat-samsung/dev-backlight.c
@@ -14,12 +14,18 @@
#include <linux/platform_device.h>
#include <linux/slab.h>
#include <linux/io.h>
+#include <linux/regulator/machine.h>
+#include <linux/regulator/fixed.h>
#include <linux/pwm_backlight.h>
#include <plat/devs.h>
#include <plat/gpio-cfg.h>
#include <plat/backlight.h>
+/* Dummy regulator for pwm-backlight driver */
+static struct regulator_consumer_supply backlight_supply =
+ REGULATOR_SUPPLY("enable", "pwm-backlight");
+
static int samsung_bl_init(struct device *dev)
{
int ret = 0;
@@ -37,6 +43,9 @@ static int samsung_bl_init(struct device *dev)
/* Configure GPIO pin with specific GPIO function for PWM timer */
s3c_gpio_cfgpin(bl_gpio_info->no, bl_gpio_info->func);
+ regulator_register_always_on(-1, "backlight-enable",
+ &backlight_supply, 1, 0);
+
return 0;
}
--
1.8.1.5
--
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