Commit 95658e21 authored Jan 14, 2019 by Robin Murphy Committed by Heiko Stuebner Jan 17, 2019

arm64: dts: rockchip: Add NanoPC-T4 IR receiver



In common with most Rockchip reference designs, NanoPC-T4 has a passive
IR receiver connected to PWM3. In lieu of a specialised driver for
PWM-based IR pulse measurement, running the pin as a GPIO with the basic
driver works perfectly well.

Signed-off-by: Robin Murphy <robin.murphy@arm.com>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>

parent c62ffaf5

arch/arm64/boot/dts/rockchip/rk3399-nanopc-t4.dts

+16 −0

Original line number	Diff line number	Diff line
		@@ -45,6 +45,22 @@
		press-threshold-microvolt = <18000>;
		};
		};

		ir-receiver {
		compatible = "gpio-ir-receiver";
		gpios = <&gpio0 RK_PA6 GPIO_ACTIVE_LOW>;
		pinctrl-names = "default";
		pinctrl-0 = <&ir_rx>;
		};
		};

		&pinctrl {
		ir {
		ir_rx: ir-rx {
		/* external pullup to VCC3V3_SYS, despite being 1.8V :/ */
		rockchip,pins = <0 RK_PA6 RK_FUNC_1 &pcfg_pull_none>;
		};
		};
		};

		&sdhci {

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