From: achew@nvidia.com (Andrew Chew)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH V4 4/9] ARM: EXYNOS: Provide regulator to pwm-backlight
Date: Tue, 19 Mar 2013 11:59:28 -0700 [thread overview]
Message-ID: <1363719573-20926-5-git-send-email-achew@nvidia.com> (raw)
In-Reply-To: <1363719573-20926-1-git-send-email-achew@nvidia.com>
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@nvidia.com>
---
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
next prev parent reply other threads:[~2013-03-19 18:59 UTC|newest]
Thread overview: 27+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-03-19 18:59 [PATCH V4 0/9] Add mandatory regulator for all users of pwm-backlight Andrew Chew
2013-03-19 18:59 ` [PATCH V4 1/9] ARM: OMAP: board-4430sdp: Provide regulator to pwm-backlight Andrew Chew
2013-03-19 18:59 ` [PATCH V4 2/9] ARM: S3C24XX: " Andrew Chew
2013-03-19 18:59 ` [PATCH V4 3/9] ARM: pxa: " Andrew Chew
2013-03-19 18:59 ` Andrew Chew [this message]
2013-03-19 18:59 ` [PATCH V4 5/9] unicore32: " Andrew Chew
2013-03-19 18:59 ` [PATCH V4 6/9] ARM: mxs: " Andrew Chew
2013-03-19 21:27 ` Marek Vasut
2013-03-19 21:31 ` Andrew Chew
2013-03-19 21:35 ` Marek Vasut
2013-03-19 22:10 ` Stephen Warren
2013-03-20 8:23 ` Mark Brown
2013-03-20 14:03 ` Marek Vasut
2013-03-20 3:13 ` Shawn Guo
2013-03-19 18:59 ` [PATCH V4 7/9] ARM: vt8500: " Andrew Chew
2013-03-20 18:18 ` [Bulk] " Tony Prisk
2013-03-19 18:59 ` [PATCH V4 8/9] ARM: tegra: " Andrew Chew
2013-03-21 20:01 ` Stephen Warren
2013-03-22 10:29 ` Thierry Reding
2013-03-19 18:59 ` [PATCH V4 9/9] pwm_bl: Add mandatory backlight enable regulator Andrew Chew
2013-03-20 18:00 ` Stephen Warren
2013-03-20 22:19 ` Thierry Reding
2013-03-20 2:14 ` [PATCH V4 0/9] Add mandatory regulator for all users of pwm-backlight Shawn Guo
2013-03-20 2:24 ` Alex Courbot
2013-03-20 3:08 ` Shawn Guo
2013-03-20 7:13 ` Tony Prisk
2013-03-22 1:57 ` Alex Courbot
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