From: Heiko Stuebner <heiko@sntech.de>
Date: Sun, 29 Nov 2015 18:46:09 +0000 (+0100)
Subject: ARM: dts: rockchip: add startup delay to rk3288-veyron panel-regulators
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=1f45e8c6d0161f044d679f242fe7514e2625af4a;p=linux-beck.git

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 <heiko@sntech.de>
Tested-by: Douglas Anderson <dianders@chromium.org>
---

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>;
 	};