From: Thierry Reding <treding@nvidia.com>
Date: Tue, 4 Jun 2019 15:29:12 +0000 (+0200)
Subject: arm64: tegra: Add VCC supply for GPIO expanders on Jetson TX2
X-Git-Tag: v5.3-rc1~19^2~20^2~21
X-Git-Url: https://asedeno.scripts.mit.edu/gitweb/?a=commitdiff_plain;h=c4502cc3a15ac70a24ed0d0bf4de5fb4cffb726f;p=linux.git

arm64: tegra: Add VCC supply for GPIO expanders on Jetson TX2

The GPIO expanders on Jetson TX2 are powered by the VDD_1V8 and
VDD_3V3_SYS supplies, respectively. Model this in device tree so that
the correct supplies are referenced.

Reviewed-by: Jon Hunter <jonathanh@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
---

diff --git a/arch/arm64/boot/dts/nvidia/tegra186-p2771-0000.dts b/arch/arm64/boot/dts/nvidia/tegra186-p2771-0000.dts
index 5102de1dac9c..837218e83e69 100644
--- a/arch/arm64/boot/dts/nvidia/tegra186-p2771-0000.dts
+++ b/arch/arm64/boot/dts/nvidia/tegra186-p2771-0000.dts
@@ -31,6 +31,8 @@ exp1: gpio@74 {
 
 			#gpio-cells = <2>;
 			gpio-controller;
+
+			vcc-supply = <&vdd_3v3_sys>;
 		};
 
 		exp2: gpio@77 {
@@ -43,6 +45,8 @@ exp2: gpio@77 {
 
 			#gpio-cells = <2>;
 			gpio-controller;
+
+			vcc-supply = <&vdd_1v8>;
 		};
 	};