RE: [PATCH v5 3/3] usb: otg: utils: devres: Add API's to associate a device with the phy

[Chen Peter-B29397 <B29397@xxxxxxxxxxxxx>]

> 
> Used devres API's to associate the phy with a device so that on
> driver detach, release function is invoked on the devres data(usb_phy)
> and devres data(usb_phy) is released.
> 
Sorry, I not understand, you would like to say the usb_phy will be released
on its user's detach routine automatically?

 
> 
> @@ -34,6 +35,48 @@ static struct usb_phy *__usb_find_phy(struct list_head
> *list,
>  	return ERR_PTR(-ENODEV);
>  }
> 
> +static void devm_usb_phy_release(struct device *dev, void *res)
> +{
> +	struct usb_phy *phy = *(struct usb_phy **)res;
> +
> +	usb_put_phy(phy);
> +}
> +
> +static int devm_usb_phy_match(struct device *dev, void *res, void
> *match_data)
> +{
> +	return res == match_data;
> +}
> +
> +/**
> + * devm_usb_get_phy - find the USB PHY
> + * @dev - device that requests this phy
> + * @type - the type of the phy the controller requires
> + *
> + * Gets the phy using usb_get_phy(), and associates a device with it
> using
> + * devres. On driver detach, release function is invoked on the devres
> data,
> + * then, devres data is freed.
> + *
> + * For use by USB host and peripheral drivers.
> + */
It may not be used by host and peripheral driver only, other drivers(otg?)
like handing id interrupt may also use it.


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