Revert "ARM: dts: rockchip: add startup delay to rk3288-veyron panel-regulators"
authorDouglas Anderson <dianders@chromium.org>
Thu, 20 Jun 2019 18:20:56 +0000 (11:20 -0700)
committerHeiko Stuebner <heiko@sntech.de>
Fri, 16 Aug 2019 11:27:05 +0000 (13:27 +0200)
This reverts commit 1f45e8c6d0161f044d679f242fe7514e2625af4a.

This 100 ms mystery delay is not on downstream kernels and no longer
seems needed on upstream kernels either [1].  Presumably something in the
meantime has made things better.  A few possibilities for patches that
have landed in the meantime that could have made this better are
commit 3157694d8c7f ("pwm-backlight: Add support for PWM delays
proprieties."), commit 5fb5caee92ba ("pwm-backlight: Enable/disable
the PWM before/after LCD enable toggle."), and commit 6d5922dd0d60
("ARM: dts: rockchip: set PWM delay backlight settings for Veyron")

Let's revert and get our 100 ms back.

[1] https://lkml.kernel.org/r/2226970.BAPq4liE1j@diego

Signed-off-by: Douglas Anderson <dianders@chromium.org>
[rebased on top of the recent veyron display cleanup]
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
arch/arm/boot/dts/rk3288-veyron-edp.dtsi

index d74b620..b12e061 100644 (file)
@@ -24,7 +24,6 @@
                pinctrl-names = "default";
                pinctrl-0 = <&lcd_enable_h>;
                regulator-name = "panel_regulator";
-               startup-delay-us = <100000>;
                vin-supply = <&vcc33_sys>;
        };