On 04/06/2019 16:29, Thierry Reding wrote:
> 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>;
> };
> };
Reviewed-by: Jon Hunter <jonathanh@xxxxxxxxxx>
Cheers
Jon
--
nvpublic
