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 5c97e31..2123ac2 100644 (file)
--- 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 60bd6e9..1a9bef1 100644 (file)
--- 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 699beb0..8b16f37 100644 (file)
--- 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 b34a7b5..e62cdee 100644 (file)
--- 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>;
        };