| Message ID | a21283067b8d5132df430f3eca6a01ed9eebf1b2.1546981251.git.robin.murphy@arm.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | NanoPC-T4 (and a bit of NanoPi M4) support | expand |
Am Dienstag, 8. Januar 2019, 22:57:26 CET schrieb Robin Murphy: > 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> easy change and of course looks good. As it doesn't apply due to coming after other changes, I'll have to wait for v2 though. Heiko
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 {
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> --- .../arm64/boot/dts/rockchip/rk3399-nanopc-t4.dts | 16 ++++++++++++++++ 1 file changed, 16 insertions(+)