linux-kernel - Re: [PATCH 2/2] usb: chipidea: imx: add USB support for i.MX94

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Message-ID: <aM16mDSAwi4GIUys@lizhi-Precision-Tower-5810>
Date: Fri, 19 Sep 2025 11:45:28 -0400
From: Frank Li <Frank.li@....com>
To: Xu Yang <xu.yang_2@....com>
Cc: gregkh@...uxfoundation.org, robh@...nel.org, krzk+dt@...nel.org,
	conor+dt@...nel.org, peter.chen@...nel.org, shawnguo@...nel.org,
	s.hauer@...gutronix.de, kernel@...gutronix.de, festevam@...il.com,
	peng.fan@....com, jun.li@....com, linux-usb@...r.kernel.org,
	devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
	imx@...ts.linux.dev, linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH 2/2] usb: chipidea: imx: add USB support for i.MX94

On Fri, Sep 19, 2025 at 03:11:11PM +0800, Xu Yang wrote:
> Add new imx94_usbmisc_ops for i.MX94 due to it has same wakeup logic
> as i.MX95, but it doesn't need workaround for ERR051725, so pullup
> is not needed.
>
> Signed-off-by: Xu Yang <xu.yang_2@....com>

Reviewed-by: Frank Li <Frank.Li@....com>

> ---
>  drivers/usb/chipidea/usbmisc_imx.c | 12 ++++++++++++
>  1 file changed, 12 insertions(+)
>
> diff --git a/drivers/usb/chipidea/usbmisc_imx.c b/drivers/usb/chipidea/usbmisc_imx.c
> index b1418885707c..bb027d2bd700 100644
> --- a/drivers/usb/chipidea/usbmisc_imx.c
> +++ b/drivers/usb/chipidea/usbmisc_imx.c
> @@ -1224,6 +1224,14 @@ static const struct usbmisc_ops imx7ulp_usbmisc_ops = {
>  	.power_lost_check = usbmisc_imx7d_power_lost_check,
>  };
>
> +static const struct usbmisc_ops imx94_usbmisc_ops = {
> +	.init = usbmisc_imx7d_init,
> +	.set_wakeup = usbmisc_imx95_set_wakeup,
> +	.charger_detection = imx7d_charger_detection,
> +	.power_lost_check = usbmisc_imx7d_power_lost_check,
> +	.vbus_comparator_on = usbmisc_imx7d_vbus_comparator_on,
> +};
> +
>  static const struct usbmisc_ops imx95_usbmisc_ops = {
>  	.init = usbmisc_imx7d_init,
>  	.set_wakeup = usbmisc_imx95_set_wakeup,
> @@ -1481,6 +1489,10 @@ static const struct of_device_id usbmisc_imx_dt_ids[] = {
>  		.compatible = "fsl,imx8ulp-usbmisc",
>  		.data = &imx7ulp_usbmisc_ops,
>  	},
> +	{
> +		.compatible = "fsl,imx94-usbmisc",
> +		.data = &imx94_usbmisc_ops,
> +	},
>  	{
>  		.compatible = "fsl,imx95-usbmisc",
>  		.data = &imx95_usbmisc_ops,
> --
> 2.34.1
>