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arm64: tegra: Add GPIO expanders on P2771

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The P2771 development board expands the number of GPIOs via two I2C
chips.

Acked-by: Jon Hunter <jonathanh@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
This commit is contained in:
Thierry Reding 2017-02-23 18:30:53 +01:00
parent b693b3d709
commit b27d525006
1 changed files with 22 additions and 0 deletions
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22
arch/arm64/boot/dts/nvidia/tegra186-p2771-0000.dts
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@ -18,6 +18,28 @@
compatible = "ti,ina3221";
reg = <0x43>;
};
exp1: gpio@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@77 {
compatible = "ti,tca9539";
reg = <0x77>;
interrupt-parent = <&gpio>;
interrupts = <TEGRA_MAIN_GPIO(Y, 6) GPIO_ACTIVE_LOW>;
#gpio-cells = <2>;
gpio-controller;
};
};
/* SDMMC1 (SD/MMC) */