diff options
| author | H. Nikolaus Schaller <hns@goldelico.com> | 2016-09-05 05:16:38 -0400 |
|---|---|---|
| committer | Tony Lindgren <tony@atomide.com> | 2016-09-14 14:12:16 -0400 |
| commit | 3868b42f367d7a8d4246db03388fddc1d4db428f (patch) | |
| tree | a585895f2250381678fc6e8656b0e03f84c898b5 /arch/arm/boot | |
| parent | 98cc4544d65c8d879a39cfc38703e9f4d078a3e9 (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/boot')
| -rw-r--r-- | arch/arm/boot/dts/omap3-gta04.dtsi | 2 |
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 @@ | |||
| 102 | 102 | ||
| 103 | backlight { | 103 | backlight { |
| 104 | compatible = "pwm-backlight"; | 104 | compatible = "pwm-backlight"; |
| 105 | pwms = <&pwm11 0 2000000 0>; | 105 | pwms = <&pwm11 0 12000000 0>; |
| 106 | pwm-names = "backlight"; | 106 | pwm-names = "backlight"; |
| 107 | brightness-levels = <0 11 20 30 40 50 60 70 80 90 100>; | 107 | brightness-levels = <0 11 20 30 40 50 60 70 80 90 100>; |
| 108 | default-brightness-level = <9>; /* => 90 */ | 108 | default-brightness-level = <9>; /* => 90 */ |