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From: Alexander Stein <alexander.stein@ew.tq-group.com>
To: Rob Herring <robh@kernel.org>,
	Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>,
	Conor Dooley <conor+dt@kernel.org>,
	Shawn Guo <shawnguo@kernel.org>,
	Sascha Hauer <s.hauer@pengutronix.de>,
	Fabio Estevam <festevam@gmail.com>
Cc: Pengutronix Kernel Team <kernel@pengutronix.de>,
	NXP Linux Team <linux-imx@nxp.com>,
	linux@ew.tq-group.com, devicetree@vger.kernel.org,
	linux-arm-kernel@lists.infradead.org
Subject: Re: [PATCH 2/2] arm64: dts: imx8mn: tqma8mqnl-mba8mx: Add missing USB PHY vbus supply
Date: Wed, 21 Feb 2024 09:38:20 +0100	[thread overview]
Message-ID: <2596915.Lt9SDvczpP@steina-w> (raw)
In-Reply-To: <20240220153334.2624873-2-alexander.stein@ew.tq-group.com>

Am Dienstag, 20. Februar 2024, 16:33:34 CET schrieb Alexander Stein:
> VBUS 5V is statically provided to both USB host and on-bard USB-hub.
> 
> Signed-off-by: Alexander Stein <alexander.stein@ew.tq-group.com>
> ---
>  arch/arm64/boot/dts/freescale/imx8mn-tqma8mqnl-mba8mx.dts | 4 ++++
>  1 file changed, 4 insertions(+)
> 
> diff --git a/arch/arm64/boot/dts/freescale/imx8mn-tqma8mqnl-mba8mx.dts b/arch/arm64/boot/dts/freescale/imx8mn-tqma8mqnl-mba8mx.dts
> index c07d59147ab55..5b682dd907578 100644
> --- a/arch/arm64/boot/dts/freescale/imx8mn-tqma8mqnl-mba8mx.dts
> +++ b/arch/arm64/boot/dts/freescale/imx8mn-tqma8mqnl-mba8mx.dts
> @@ -86,6 +86,10 @@ &usbotg1 {
>  	status = "okay";
>  };
>  
> +&usbphynop1 {
> +	vbus-supply = <&reg_hub_vbus>;
> +};
> +

Okay, this is kinda confusing. While checking imx8mm platform as well, it turns out
vbus-supply in drivers/usb/phy/phy-generic.c is not used at all, because i.MX
chipidea host doesn't use PHY vbus control at all.

Please drop this, thanks.
Alexander

>  &iomuxc {
>  	pinctrl_ecspi1: ecspi1grp {
>  		fsl,pins = <MX8MN_IOMUXC_ECSPI1_SCLK_ECSPI1_SCLK	0x00000146>,
> 


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  reply	other threads:[~2024-02-21  8:38 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-02-20 15:33 [PATCH 1/2] arm64: dts: imx8mq: tqma8mq-mba8mx: Add missing USB vbus supply Alexander Stein
2024-02-20 15:33 ` [PATCH 2/2] arm64: dts: imx8mn: tqma8mqnl-mba8mx: Add missing USB PHY " Alexander Stein
2024-02-21  8:38   ` Alexander Stein [this message]
2024-02-25 12:47 ` [PATCH 1/2] arm64: dts: imx8mq: tqma8mq-mba8mx: Add missing USB " Shawn Guo

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