Re: [PATCH 4/4] arm64: dts: imx8mn: Add power-domain reference in USB controller

From: Krzysztof Kozlowski
Date: Fri Oct 23 2020 - 05:55:26 EST


On Thu, Oct 22, 2020 at 10:08:07AM -0500, Adam Ford wrote:
> The USB OTG controller cannot be used until the power-domain is enabled
> unless it was started in the bootloader.
>
> Adding the power-domain reference to the OTG node allows the OTG
> controller to operate.
>
> Signed-off-by: Adam Ford <aford173@xxxxxxxxx>
>

I wonder, why your patches do not have usual Git trailer with summary of
changes (after '---')?

> diff --git a/arch/arm64/boot/dts/freescale/imx8mn.dtsi b/arch/arm64/boot/dts/freescale/imx8mn.dtsi
> index 27733fbe87e9..605e6dbd2c6f 100644
> --- a/arch/arm64/boot/dts/freescale/imx8mn.dtsi
> +++ b/arch/arm64/boot/dts/freescale/imx8mn.dtsi
> @@ -979,6 +979,7 @@ usbotg1: usb@32e40000 {
> assigned-clock-parents = <&clk IMX8MN_SYS_PLL2_500M>;
> fsl,usbphy = <&usbphynop1>;
> fsl,usbmisc = <&usbmisc1 0>;
> + power-domains = <&pgc_otg1>;

I guess you need it also for the usbphynop1 and usbmisc1.

Best regards,
Krzysztof