From 1f45e8c6d0161f044d679f242fe7514e2625af4a Mon Sep 17 00:00:00 2001 From: Heiko Stuebner Date: Sun, 29 Nov 2015 19:46:09 +0100 Subject: [PATCH] ARM: dts: rockchip: add startup delay to rk3288-veyron panel-regulators The panels need a bit of time to actually turn on. If this isn't observed, this results in problems when trying talk to the panels and thus produces detection errors. 100ms seem to be a safe value for the time being. Signed-off-by: Heiko Stuebner Tested-by: Douglas Anderson --- arch/arm/boot/dts/rk3288-veyron-jaq.dts | 1 + arch/arm/boot/dts/rk3288-veyron-jerry.dts | 1 + arch/arm/boot/dts/rk3288-veyron-minnie.dts | 1 + arch/arm/boot/dts/rk3288-veyron-speedy.dts | 1 + 4 files changed, 4 insertions(+) diff --git a/arch/arm/boot/dts/rk3288-veyron-jaq.dts b/arch/arm/boot/dts/rk3288-veyron-jaq.dts index 5c97e3153526..2123ac21491e 100644 --- a/arch/arm/boot/dts/rk3288-veyron-jaq.dts +++ b/arch/arm/boot/dts/rk3288-veyron-jaq.dts @@ -61,6 +61,7 @@ pinctrl-names = "default"; pinctrl-0 = <&lcd_enable_h>; regulator-name = "panel_regulator"; + startup-delay-us = <100000>; vin-supply = <&vcc33_sys>; }; diff --git a/arch/arm/boot/dts/rk3288-veyron-jerry.dts b/arch/arm/boot/dts/rk3288-veyron-jerry.dts index 60bd6e91e308..1a9bef1303d3 100644 --- a/arch/arm/boot/dts/rk3288-veyron-jerry.dts +++ b/arch/arm/boot/dts/rk3288-veyron-jerry.dts @@ -60,6 +60,7 @@ pinctrl-names = "default"; pinctrl-0 = <&lcd_enable_h>; regulator-name = "panel_regulator"; + startup-delay-us = <100000>; vin-supply = <&vcc33_sys>; }; diff --git a/arch/arm/boot/dts/rk3288-veyron-minnie.dts b/arch/arm/boot/dts/rk3288-veyron-minnie.dts index 699beb0a9481..8b16f378a847 100644 --- a/arch/arm/boot/dts/rk3288-veyron-minnie.dts +++ b/arch/arm/boot/dts/rk3288-veyron-minnie.dts @@ -70,6 +70,7 @@ pinctrl-names = "default"; pinctrl-0 = <&lcd_enable_h>; regulator-name = "panel_regulator"; + startup-delay-us = <100000>; vin-supply = <&vcc33_sys>; }; diff --git a/arch/arm/boot/dts/rk3288-veyron-speedy.dts b/arch/arm/boot/dts/rk3288-veyron-speedy.dts index b34a7b5b3f62..e62cdee78302 100644 --- a/arch/arm/boot/dts/rk3288-veyron-speedy.dts +++ b/arch/arm/boot/dts/rk3288-veyron-speedy.dts @@ -61,6 +61,7 @@ pinctrl-names = "default"; pinctrl-0 = <&lcd_enable_h>; regulator-name = "panel_regulator"; + startup-delay-us = <100000>; vin-supply = <&vcc33_sys>; }; -- 2.20.1