diff options
| author | Chris Morgan <macromorgan@hotmail.com> | 2024-06-05 20:20:49 +0300 |
|---|---|---|
| committer | Chen-Yu Tsai <wens@csie.org> | 2024-06-22 15:14:34 +0300 |
| commit | e41e5973bf4559b0918c59d243ba8612f070f854 (patch) | |
| tree | bd6bcf84e300a78551ed8a5c89914b7147db1161 /arch/arm64/boot/dts/allwinner | |
| parent | 59678cc9cc54e556f83a58c52aaac8c149edab67 (diff) | |
| download | linux-e41e5973bf4559b0918c59d243ba8612f070f854.tar.xz | |
arm64: dts: allwinner: anbernic-rg35xx-h: Add ADC joysticks
Add support for the ADC joysticks found on the Anbernic RG35XX-H. The
joysticks use one channel of the GPADC which is muxed 4 ways by an ADC
mux.
Signed-off-by: Chris Morgan <macromorgan@hotmail.com>
Link: https://lore.kernel.org/r/20240605172049.231108-5-macroalpha82@gmail.com
Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Diffstat (limited to 'arch/arm64/boot/dts/allwinner')
| -rw-r--r-- | arch/arm64/boot/dts/allwinner/sun50i-h700-anbernic-rg35xx-h.dts | 79 |
1 files changed, 79 insertions, 0 deletions
diff --git a/arch/arm64/boot/dts/allwinner/sun50i-h700-anbernic-rg35xx-h.dts b/arch/arm64/boot/dts/allwinner/sun50i-h700-anbernic-rg35xx-h.dts index 63036256917f..ff453336eab1 100644 --- a/arch/arm64/boot/dts/allwinner/sun50i-h700-anbernic-rg35xx-h.dts +++ b/arch/arm64/boot/dts/allwinner/sun50i-h700-anbernic-rg35xx-h.dts @@ -9,6 +9,78 @@ / { model = "Anbernic RG35XX H"; compatible = "anbernic,rg35xx-h", "allwinner,sun50i-h700"; + + adc-joystick { + compatible = "adc-joystick"; + io-channels = <&adc_mux 0>, + <&adc_mux 1>, + <&adc_mux 2>, + <&adc_mux 3>; + pinctrl-0 = <&joy_mux_pin>; + pinctrl-names = "default"; + poll-interval = <60>; + #address-cells = <1>; + #size-cells = <0>; + + axis@0 { + reg = <0>; + abs-flat = <32>; + abs-fuzz = <32>; + abs-range = <4096 0>; + linux,code = <ABS_X>; + }; + + axis@1 { + reg = <1>; + abs-flat = <32>; + abs-fuzz = <32>; + abs-range = <0 4096>; + linux,code = <ABS_Y>; + }; + + axis@2 { + reg = <2>; + abs-flat = <32>; + abs-fuzz = <32>; + abs-range = <0 4096>; + linux,code = <ABS_RX>; + }; + + axis@3 { + reg = <3>; + abs-flat = <32>; + abs-fuzz = <32>; + abs-range = <4096 0>; + linux,code = <ABS_RY>; + }; + }; + + adc_mux: adc-mux { + compatible = "io-channel-mux"; + channels = "left_x", "left_y", "right_x", "right_y"; + #io-channel-cells = <1>; + io-channels = <&gpadc 0>; + io-channel-names = "parent"; + mux-controls = <&gpio_mux>; + settle-time-us = <100>; + }; + + gpio_mux: mux-controller { + compatible = "gpio-mux"; + mux-gpios = <&pio 8 1 GPIO_ACTIVE_LOW>, + <&pio 8 2 GPIO_ACTIVE_LOW>; + #mux-control-cells = <0>; + }; +}; + +&gpadc { + #address-cells = <1>; + #size-cells = <0>; + status = "okay"; + + channel@0 { + reg = <0>; + }; }; &gpio_keys_gamepad { @@ -34,3 +106,10 @@ &ohci1 { status = "okay"; }; + +&pio { + joy_mux_pin: joy-mux-pin { + pins = "PI0"; + function = "gpio_out"; + }; +}; |