diff options
| author | Robin Murphy <robin.murphy@arm.com> | 2019-01-14 12:05:33 +0000 |
|---|---|---|
| committer | Heiko Stuebner <heiko@sntech.de> | 2019-01-17 14:59:20 +0100 |
| commit | 95658e21b1707ad7844f873db2fdaa295109a5a3 (patch) | |
| tree | 59a123440b26e54de3b717a7ef9fe7cc3cb3bacf /arch/arm64/boot/dts/rockchip/rk3399-nanopc-t4.dts | |
| parent | c62ffaf5026d0b7633e62b2cea8450b5543c349a (diff) | |
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>
Diffstat (limited to 'arch/arm64/boot/dts/rockchip/rk3399-nanopc-t4.dts')
| -rw-r--r-- | arch/arm64/boot/dts/rockchip/rk3399-nanopc-t4.dts | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/arch/arm64/boot/dts/rockchip/rk3399-nanopc-t4.dts b/arch/arm64/boot/dts/rockchip/rk3399-nanopc-t4.dts index 623a03f2548a..84433cf02be9 100644 --- a/arch/arm64/boot/dts/rockchip/rk3399-nanopc-t4.dts +++ b/arch/arm64/boot/dts/rockchip/rk3399-nanopc-t4.dts @@ -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 { |