From: Thierry Reding <treding@xxxxxxxxxx>
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.
Signed-off-by: Thierry Reding <treding@xxxxxxxxxx>
---
arch/arm64/boot/dts/nvidia/tegra186-p2771-0000.dts | 4 ++++
1 file changed, 4 insertions(+)
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 @@
#gpio-cells = <2>;
gpio-controller;
+
+ vcc-supply = <&vdd_3v3_sys>;
};
exp2: gpio@77 {
@@ -43,6 +45,8 @@
#gpio-cells = <2>;
gpio-controller;
+
+ vcc-supply = <&vdd_1v8>;
};
};
--
2.21.0
