diff options
| author | Nicolas Frattaroli <nicolas.frattaroli@collabora.com> | 2025-06-30 17:36:35 +0200 |
|---|---|---|
| committer | Heiko Stuebner <heiko@sntech.de> | 2025-07-11 15:25:40 +0200 |
| commit | eebf59470a76a38d0c43005a34483e1a52a33de0 (patch) | |
| tree | 03d556cfe1ff7f5b83b12c1f91d28cc3b9e9497f | |
| parent | 787595b423d855bfcbf724822fd1e663ad368d08 (diff) | |
arm64: dts: rockchip: theoretically enable Wi-Fi on ROCK 4D
The production version of the ROCK 4D appears to sport a AICSEMI
AIC8800D80 USB Wi-Fi + BT chipset. This chip does not yet have a
mainline driver.
Add the necessary rfkill node and wifi regulator node to at least make
it show up in lsusb output. The regulator is set as always-on, as like 2
hours deep into debugging why onboard_usb_dev.c wouldn't try enabling
the regulator the device needs to actually show up and thus bind to
onboard_usb_dev.c, I decided that it's not worth the effort.
Signed-off-by: Nicolas Frattaroli <nicolas.frattaroli@collabora.com>
Link: https://lore.kernel.org/r/20250630-rock4d-reg-usb-wifi-v1-3-1057f412d98c@collabora.com
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
| -rw-r--r-- | arch/arm64/boot/dts/rockchip/rk3576-rock-4d.dts | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/arch/arm64/boot/dts/rockchip/rk3576-rock-4d.dts b/arch/arm64/boot/dts/rockchip/rk3576-rock-4d.dts index 87bc9004fca1..c2683c2a2f04 100644 --- a/arch/arm64/boot/dts/rockchip/rk3576-rock-4d.dts +++ b/arch/arm64/boot/dts/rockchip/rk3576-rock-4d.dts @@ -37,6 +37,14 @@ }; }; + rfkill { + compatible = "rfkill-gpio"; + pinctrl-names = "default"; + pinctrl-0 = <&wifi_en_h>; + radio-type = "wlan"; + shutdown-gpios = <&gpio2 RK_PD1 GPIO_ACTIVE_HIGH>; + }; + leds: leds { compatible = "gpio-leds"; pinctrl-names = "default"; @@ -159,6 +167,19 @@ vin-supply = <&vcc_5v0_sys>; }; + vcc_3v3_wifi: regulator-vcc-3v3-wifi { + compatible = "regulator-fixed"; + enable-active-high; + gpios = <&gpio2 RK_PC7 GPIO_ACTIVE_HIGH>; + pinctrl-names = "default"; + pinctrl-0 = <&usb_wifi_pwr>; + regulator-always-on; + regulator-min-microvolt = <3300000>; + regulator-max-microvolt = <3300000>; + regulator-name = "vcc_3v3_wifi"; + vin-supply = <&vcc_3v3_s3>; + }; + vcc_5v0_device: regulator-vcc-5v0-device { compatible = "regulator-fixed"; regulator-always-on; @@ -720,6 +741,15 @@ }; }; + + wifi { + usb_wifi_pwr: usb-wifi-pwr { + rockchip,pins = <2 RK_PC7 RK_FUNC_GPIO &pcfg_pull_down>; + }; + wifi_en_h: wifi-en-h { + rockchip,pins = <2 RK_PD1 RK_FUNC_GPIO &pcfg_pull_down>; + }; + }; }; &sdmmc { |