linux-kernel - Re: [RFC PATCH 3/3] arm64: dts: allwinner: h700: Enable USB OTG

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Message-ID: <3229934.fEcJ0Lxnt5@jernej-laptop>
Date: Thu, 20 Feb 2025 21:38:44 +0100
From: Jernej Škrabec <jernej.skrabec@...il.com>
To: Rob Herring <robh@...nel.org>, Krzysztof Kozlowski <krzk+dt@...nel.org>,
 Conor Dooley <conor+dt@...nel.org>, Chen-Yu Tsai <wens@...e.org>,
 Samuel Holland <samuel@...lland.org>,
 "open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS"
 <devicetree@...r.kernel.org>,
 "moderated list:ARM/Allwinner sunXi SoC support"
 <linux-arm-kernel@...ts.infradead.org>,
 "open list:ARM/Allwinner sunXi SoC support" <linux-sunxi@...ts.linux.dev>,
 open list <linux-kernel@...r.kernel.org>,
 Philippe Simons <simons.philippe@...il.com>
Cc: Philippe Simons <simons.philippe@...il.com>
Subject: Re: [RFC PATCH 3/3] arm64: dts: allwinner: h700: Enable USB OTG

Dne sobota, 18. januar 2025 ob 11:22:06 Srednjeevropski standardni čas je Philippe Simons napisal(a):
> RG35XX have a GPIO controlled regulator for phy0 vbus, add it.
> Enable HCI0s controllers and otg for dr_mode.
> Add phy0 properties to descrive id_det, external vbus, and internal vbus
> 
> Signed-off-by: Philippe Simons <simons.philippe@...il.com>

This could work without previous two patches, right?

Reviewed-by: Jernej Skrabec <jernej.skrabec@...il.com>

Best regards,
Jernej

> ---
>  .../sun50i-h700-anbernic-rg35xx-2024.dts      | 25 +++++++++++++++++--
>  1 file changed, 23 insertions(+), 2 deletions(-)
> 
> diff --git a/arch/arm64/boot/dts/allwinner/sun50i-h700-anbernic-rg35xx-2024.dts b/arch/arm64/boot/dts/allwinner/sun50i-h700-anbernic-rg35xx-2024.dts
> index 80ccab7b5..5a6ae42de 100644
> --- a/arch/arm64/boot/dts/allwinner/sun50i-h700-anbernic-rg35xx-2024.dts
> +++ b/arch/arm64/boot/dts/allwinner/sun50i-h700-anbernic-rg35xx-2024.dts
> @@ -175,6 +175,16 @@ reg_vcc5v: regulator-vcc5v { /* USB-C power input */
>  		regulator-min-microvolt = <5000000>;
>  		regulator-max-microvolt = <5000000>;
>  	};
> +
> +	reg_usb0_vbus: regulator-usb0-vbus {
> +		compatible = "regulator-fixed";
> +		enable-active-high;
> +		gpio = <&pio 8 16 GPIO_ACTIVE_HIGH>; /* PI16 */
> +		regulator-min-microvolt = <5000000>;
> +		regulator-max-microvolt = <5000000>;
> +		regulator-name = "usb0-vbus";
> +		vin-supply = <&reg_boost>;
> +	};
>  };
>  
>  &cpu0 {
> @@ -337,12 +347,23 @@ &uart0 {
>  	status = "okay";
>  };
>  
> -/* the AXP717 has USB type-C role switch functionality, not yet described by the binding */
> +/* the AXP717 has USB type-C role switch functionality */
>  &usbotg {
> -	dr_mode = "peripheral";   /* USB type-C receptable */
> +	dr_mode = "otg";   /* USB type-C receptable */
> +	status = "okay";
> +};
> +
> +&ehci0 {
> +	status = "okay";
> +};
> +
> +&ohci0 {
>  	status = "okay";
>  };
>  
>  &usbphy {
> +	usb0_id_det-gpios = <&pio 8 4 (GPIO_ACTIVE_LOW | GPIO_PULL_UP)>; /* PI4 */
> +	usb0_vbus_power-supply = <&usb_power>;
> +	usb0_vbus-supply = <&reg_usb0_vbus>;
>  	status = "okay";
>  };
>