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>

diff --git a/arch/arm/boot/dts/omap3-gta04.dtsi b/arch/arm/boot/dts/omap3-gta04.dtsi
index 5563e25..b3a8b1f 100644 (file)
--- 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 */