releases/4.9.30/arm-tegra-paz00-mark-panel-regulator-as-enabled-on-boot.patch

   1 From 0c18927f51f4d390abdcf385bff5f995407ee732 Mon Sep 17 00:00:00 2001
   2 From: Marc Dietrich <marvin24@gmx.de>
   3 Date: Fri, 9 Dec 2016 10:20:38 +0100
   4 Subject: ARM: tegra: paz00: Mark panel regulator as enabled on boot
   5
   6 From: Marc Dietrich <marvin24@gmx.de>
   7
   8 commit 0c18927f51f4d390abdcf385bff5f995407ee732 upstream.
   9
  10 Current U-Boot enables the display already. Marking the regulator as
  11 enabled on boot fixes sporadic panel initialization failures.
  12
  13 Signed-off-by: Marc Dietrich <marvin24@gmx.de>
  14 Tested-by: Misha Komarovskiy <zombah@gmail.com>
  15 Signed-off-by: Thierry Reding <treding@nvidia.com>
  16 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
  17
  18 ---
  19  arch/arm/boot/dts/tegra20-paz00.dts |    1 +
  20  1 file changed, 1 insertion(+)
  21
  22 --- a/arch/arm/boot/dts/tegra20-paz00.dts
  23 +++ b/arch/arm/boot/dts/tegra20-paz00.dts
  24 @@ -569,6 +569,7 @@
  25                         regulator-name = "+3VS,vdd_pnl";
  26                         regulator-min-microvolt = <3300000>;
  27                         regulator-max-microvolt = <3300000>;
  28 +                       regulator-boot-on;
  29                         gpio = <&gpio TEGRA_GPIO(A, 4) GPIO_ACTIVE_HIGH>;
  30                         enable-active-high;
  31                 };