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 ce5961c..66b4451 100644 (file)
--- 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>;