From: Alexandre Courbot <acourbot@nvidia.com>
Date: Wed, 1 Jul 2015 09:13:47 +0000 (+0900)
Subject: ARM: tegra: jetson-tk1: Add GK20A GPU DT node
X-Git-Tag: firefly_0821_release~176^2~1183^2~1^2~3
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=21fa196fc0f4b79abb923042cb89651ca47b4b92;hp=e34cc1b6b7115de2320c2acdb62c82ebeb502c01;p=firefly-linux-kernel-4.4.55.git

ARM: tegra: jetson-tk1: Add GK20A GPU DT node

Add the device-tree node for the GK20A GPU and leave it disabled.
It is the responsibility of the bootloader to enable it if the
VPR registers have been programmed such that the GPU can operate.

Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
---

diff --git a/arch/arm/boot/dts/tegra124-jetson-tk1.dts b/arch/arm/boot/dts/tegra124-jetson-tk1.dts
index ce5961cd0b77..66b4451eb2ca 100644
--- a/arch/arm/boot/dts/tegra124-jetson-tk1.dts
+++ b/arch/arm/boot/dts/tegra124-jetson-tk1.dts
@@ -53,6 +53,14 @@
 		};
 	};
 
+	gpu@0,57000000 {
+		/*
+		 * Node left disabled on purpose - the bootloader will enable
+		 * it after having set the VPR up
+		 */
+		vdd-supply = <&vdd_gpu>;
+	};
+
 	pinmux: pinmux@0,70000868 {
 		pinctrl-names = "boot";
 		pinctrl-0 = <&state_boot>;
@@ -1514,7 +1522,7 @@
 					regulator-always-on;
 				};
 
-				sd6 {
+				vdd_gpu: sd6 {
 					regulator-name = "+VDD_GPU_AP";
 					regulator-min-microvolt = <650000>;
 					regulator-max-microvolt = <1200000>;