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authorH. Nikolaus Schaller <hns@goldelico.com>2016-09-05 11:16:38 +0200
committerTony Lindgren <tony@atomide.com>2016-09-14 11:12:16 -0700
commit3868b42f367d7a8d4246db03388fddc1d4db428f (patch)
treea585895f2250381678fc6e8656b0e03f84c898b5 /arch/arm
parent98cc4544d65c8d879a39cfc38703e9f4d078a3e9 (diff)
ARM: dts: omap3-gta04: reduce panel backlight PWM frequency to 83Hz
This helps to get 100% intensity closer to "always on". It compensates for an effect of dmtimer which at 100% still emits short "off" impulses and the startup-time of the DC/DC converter makes backlight intensity not reach full scale. The lower the PWM frequency is, the smaller is this effect. Signed-off-by: H. Nikolaus Schaller <hns@goldelico.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
Diffstat (limited to 'arch/arm')
-rw-r--r--arch/arm/boot/dts/omap3-gta04.dtsi2
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/arm/boot/dts/omap3-gta04.dtsi b/arch/arm/boot/dts/omap3-gta04.dtsi
index 5563e2533ebd..b3a8b1f24499 100644
--- a/arch/arm/boot/dts/omap3-gta04.dtsi
+++ b/arch/arm/boot/dts/omap3-gta04.dtsi
@@ -102,7 +102,7 @@
backlight {
compatible = "pwm-backlight";
- pwms = <&pwm11 0 2000000 0>;
+ pwms = <&pwm11 0 12000000 0>;
pwm-names = "backlight";
brightness-levels = <0 11 20 30 40 50 60 70 80 90 100>;
default-brightness-level = <9>; /* => 90 */