From: Thierry Reding <treding@nvidia.com>
Date: Wed, 1 Jul 2015 09:13:46 +0000 (+0900)
Subject: ARM: tegra: venice2: Add GK20A GPU DT node
X-Git-Tag: firefly_0821_release~176^2~1183^2~1^2~4
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=e34cc1b6b7115de2320c2acdb62c82ebeb502c01;p=firefly-linux-kernel-4.4.55.git

ARM: tegra: venice2: 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: Thierry Reding <treding@nvidia.com>
Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
---

diff --git a/arch/arm/boot/dts/tegra124-venice2.dts b/arch/arm/boot/dts/tegra124-venice2.dts
index 79e724bb7df7..cfbdf429b45d 100644
--- a/arch/arm/boot/dts/tegra124-venice2.dts
+++ b/arch/arm/boot/dts/tegra124-venice2.dts
@@ -43,6 +43,14 @@
 		};
 	};
 
+	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 = <&pinmux_boot>;
@@ -735,7 +743,7 @@
 					regulator-always-on;
 				};
 
-				sd6 {
+				vdd_gpu: sd6 {
 					regulator-name = "+VDD_GPU_AP";
 					regulator-min-microvolt = <650000>;
 					regulator-max-microvolt = <1200000>;