[PATCH 11/11] arm64: tegra: Add GPIO expanders on P2771

Jon Hunter jonathanh at nvidia.com
Wed Mar 8 04:11:46 PST 2017


On 23/02/17 17:30, Thierry Reding wrote:
> From: Thierry Reding <treding at nvidia.com>
> 
> The P2771 development board expands the number of GPIOs via two I2C
> chips.
> 
> Signed-off-by: Thierry Reding <treding at nvidia.com>
> ---
>  arch/arm64/boot/dts/nvidia/tegra186-p2771-0000.dts | 22 ++++++++++++++++++++++
>  1 file changed, 22 insertions(+)
> 
> diff --git a/arch/arm64/boot/dts/nvidia/tegra186-p2771-0000.dts b/arch/arm64/boot/dts/nvidia/tegra186-p2771-0000.dts
> index 9485841e3351..eac75764bf3c 100644
> --- a/arch/arm64/boot/dts/nvidia/tegra186-p2771-0000.dts
> +++ b/arch/arm64/boot/dts/nvidia/tegra186-p2771-0000.dts
> @@ -18,6 +18,28 @@
>  			compatible = "ti,ina3221";
>  			reg = <0x43>;
>  		};
> +
> +		exp1: gpio at 74 {
> +			compatible = "ti,tca9539";
> +			reg = <0x74>;
> +
> +			interrupt-parent = <&gpio>;
> +			interrupts = <TEGRA_MAIN_GPIO(Y, 0) GPIO_ACTIVE_LOW>;
> +
> +			#gpio-cells = <2>;
> +			gpio-controller;
> +		};
> +
> +		exp2: gpio at 77 {
> +			compatible = "ti,tca9539";
> +			reg = <0x77>;
> +
> +			interrupt-parent = <&gpio>;
> +			interrupts = <TEGRA_MAIN_GPIO(Y, 6) GPIO_ACTIVE_LOW>;
> +
> +			#gpio-cells = <2>;
> +			gpio-controller;
> +		};
>  	};
>  
>  	gpio-keys {
> 

Acked-by: Jon Hunter <jonathanh at nvidia.com>

Cheers
Jon

-- 
nvpublic



More information about the linux-arm-kernel mailing list