ARM: tegra: Add head numbers to display controllers

The number of the head specifies the index of the display controller
unit and is required to properly configure outputs so that they receive
video data from the correct source.

Signed-off-by: Thierry Reding <treding@nvidia.com>
Acked-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Olof Johansson <olof@lixom.net>

3 files changed, 12 insertions, 0 deletions

diff --git a/arch/arm/boot/dts/tegra114.dtsi b/arch/arm/boot/dts/tegra114.dtsi
index 389e987ec281..44ec401ec366 100644
--- a/arch/arm/boot/dts/tegra114.dtsi
+++ b/arch/arm/boot/dts/tegra114.dtsi
@@ -57,6 +57,8 @@
                         resets = <&tegra_car 27>;
                         reset-names = "dc";
 
+                        nvidia,head = <0>;
+
                         rgb {
                                 status = "disabled";
                         };
@@ -72,6 +74,8 @@
                         resets = <&tegra_car 26>;
                         reset-names = "dc";
 
+                        nvidia,head = <1>;
+
                         rgb {
                                 status = "disabled";
                         };
diff --git a/arch/arm/boot/dts/tegra20.dtsi b/arch/arm/boot/dts/tegra20.dtsi
index 480ecda3416b..48d2a7f4d0c0 100644
--- a/arch/arm/boot/dts/tegra20.dtsi
+++ b/arch/arm/boot/dts/tegra20.dtsi
@@ -94,6 +94,8 @@
                         resets = <&tegra_car 27>;
                         reset-names = "dc";
 
+                        nvidia,head = <0>;
+
                         rgb {
                                 status = "disabled";
                         };
@@ -109,6 +111,8 @@
                         resets = <&tegra_car 26>;
                         reset-names = "dc";
 
+                        nvidia,head = <1>;
+
                         rgb {
                                 status = "disabled";
                         };
diff --git a/arch/arm/boot/dts/tegra30.dtsi b/arch/arm/boot/dts/tegra30.dtsi
index ed8e7700b46d..19a84e933f4e 100644
--- a/arch/arm/boot/dts/tegra30.dtsi
+++ b/arch/arm/boot/dts/tegra30.dtsi
@@ -170,6 +170,8 @@
                         resets = <&tegra_car 27>;
                         reset-names = "dc";
 
+                        nvidia,head = <0>;
+
                         rgb {
                                 status = "disabled";
                         };
@@ -185,6 +187,8 @@
                         resets = <&tegra_car 26>;
                         reset-names = "dc";
 
+                        nvidia,head = <1>;
+
                         rgb {
                                 status = "disabled";
                         };