linux-kernel - Re: [PATCH 1/2] ARM: dts: orange-pi-zero-plus2: enable USB OTG port

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Date:   Mon, 15 Jun 2020 10:12:49 +0200
From:   Maxime Ripard <maxime@...no.tech>
To:     Diego Rondini <diego.rondini@...etics.com>
Cc:     Rob Herring <robh+dt@...nel.org>, Chen-Yu Tsai <wens@...e.org>,
        devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-kernel@...r.kernel.org, linux-sunxi@...glegroups.com
Subject: Re: [PATCH 1/2] ARM: dts: orange-pi-zero-plus2: enable USB OTG port

Hi Diego,

On Thu, May 28, 2020 at 10:47:11PM +0200, Diego Rondini wrote:
> Enable support for USB OTG port on Orange Pi Zero Plus 2 (both H3 and H5
> variants). As, according to the board schematics, the USB OTG port cannot
> provide power to external devices, we set dr_mode to peripheral.
> 
> Signed-off-by: Diego Rondini <diego.rondini@...etics.com>

Sorry for the time it took to review it. I initially thought it was ok
and wanted to wait until -rc1 was out to apply it, but...

> ---
>  .../boot/dts/sun8i-h3-orangepi-zero-plus2.dts | 23 +++++++++++++++++++
>  .../sun50i-h5-orangepi-zero-plus2.dts         | 23 +++++++++++++++++++
>  2 files changed, 46 insertions(+)
> 
> diff --git a/arch/arm/boot/dts/sun8i-h3-orangepi-zero-plus2.dts b/arch/arm/boot/dts/sun8i-h3-orangepi-zero-plus2.dts
> index b8f46e2802fd3..4376767699a47 100644
> --- a/arch/arm/boot/dts/sun8i-h3-orangepi-zero-plus2.dts
> +++ b/arch/arm/boot/dts/sun8i-h3-orangepi-zero-plus2.dts
> @@ -137,3 +137,26 @@ &uart0 {
>  	pinctrl-0 = <&uart0_pa_pins>;
>  	status = "okay";
>  };
> +
> +&usbphy {
> +	status = "okay";
> +};
> +
> +&usb_otg {
> +	/*
> +	 * According to schematics CN1 MicroUSB port can be used to take
> +	 * external 5V to power up the board VBUS. On the contrary CN1 MicroUSB
> +	 * port cannot provide power externally even if the board is powered
> +	 * via GPIO pins. It thus makes sense to force peripheral mode.
> +	 */
> +	dr_mode = "peripheral";
> +	status = "okay";
> +};
> +
> +&ehci0 {
> +	status = "okay";
> +};
> +
> +&ohci0 {
> +	status = "okay";
> +};

Nodes should be ordered alphabetically here.

> diff --git a/arch/arm64/boot/dts/allwinner/sun50i-h5-orangepi-zero-plus2.dts b/arch/arm64/boot/dts/allwinner/sun50i-h5-orangepi-zero-plus2.dts
> index c95a68541309c..d8192a7483e9e 100644
> --- a/arch/arm64/boot/dts/allwinner/sun50i-h5-orangepi-zero-plus2.dts
> +++ b/arch/arm64/boot/dts/allwinner/sun50i-h5-orangepi-zero-plus2.dts
> @@ -103,3 +103,26 @@ &uart1 {
>  	pinctrl-0 = <&uart1_pins>, <&uart1_rts_cts_pins>;
>  	status = "okay";
>  };
> +
> +&usbphy {
> +	status = "okay";
> +};
> +
> +&usb_otg {
> +	/*
> +	 * According to schematics CN1 MicroUSB port can be used to take
> +	 * external 5V to power up the board VBUS. On the contrary CN1 MicroUSB
> +	 * port cannot provide power externally even if the board is powered
> +	 * via GPIO pins. It thus makes sense to force peripheral mode.
> +	 */
> +	dr_mode = "peripheral";
> +	status = "okay";
> +};
> +
> +&ehci0 {
> +	status = "okay";
> +};
> +
> +&ohci0 {
> +	status = "okay";
> +};

And here too.

Sorry for not spotting this earlier.

Maxime

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