The extra 0 only adds one point in the userspace visible range,
so this change is almost a noop with the current driver behavior.
We don't need the 0% point, userspace seems to handle this just fine
because it uses the bl_power property to turn off the display.
Furthermore after adding "backlight: pwm_bl: Fix interpolation" patch,
the backlight interpolation will work a little differently. So we need
to preemptively remove the 0-3 segment since otherwise we would have a
252 long interpolation that would slowly go between 0 and 3, looking
really bad in userspace. So it's almost a noop/cleanup now, but it will
be required in the future.
Signed-off-by: Alexandru Stan <amstan@xxxxxxxxxxxx>
---
arch/arm/boot/dts/rk3288-veyron-jaq.dts | 2 +-
arch/arm/boot/dts/rk3288-veyron-minnie.dts | 2 +-
arch/arm/boot/dts/rk3288-veyron-tiger.dts | 2 +-
3 files changed, 3 insertions(+), 3 deletions(-)
diff --git a/arch/arm/boot/dts/rk3288-veyron-jaq.dts b/arch/arm/boot/dts/rk3288-veyron-jaq.dts
index af77ab20586d..4a148cf1defc 100644
--- a/arch/arm/boot/dts/rk3288-veyron-jaq.dts
+++ b/arch/arm/boot/dts/rk3288-veyron-jaq.dts
@@ -20,7 +20,7 @@ / {
&backlight {
/* Jaq panel PWM must be >= 3%, so start non-zero brightness at 8 */
- brightness-levels = <0 8 255>;
+ brightness-levels = <8 255>;
num-interpolated-steps = <247>;
};
diff --git a/arch/arm/boot/dts/rk3288-veyron-minnie.dts b/arch/arm/boot/dts/rk3288-veyron-minnie.dts
index f8b69e0a16a0..82fc6fba9999 100644
--- a/arch/arm/boot/dts/rk3288-veyron-minnie.dts
+++ b/arch/arm/boot/dts/rk3288-veyron-minnie.dts
@@ -39,7 +39,7 @@ volum_up {
&backlight {
/* Minnie panel PWM must be >= 1%, so start non-zero brightness at 3 */
- brightness-levels = <0 3 255>;
+ brightness-levels = <3 255>;
num-interpolated-steps = <252>;
};
diff --git a/arch/arm/boot/dts/rk3288-veyron-tiger.dts b/arch/arm/boot/dts/rk3288-veyron-tiger.dts
index 069f0c2c1fdf..52a84cbe7a90 100644
--- a/arch/arm/boot/dts/rk3288-veyron-tiger.dts
+++ b/arch/arm/boot/dts/rk3288-veyron-tiger.dts
@@ -23,7 +23,7 @@ / {
&backlight {
/* Tiger panel PWM must be >= 1%, so start non-zero brightness at 3 */
- brightness-levels = <0 3 255>;
+ brightness-levels = <3 255>;
num-interpolated-steps = <252>;
};
--
2.28.0
