On 06/21/2012 08:41 AM, Richard Zhao wrote:
> Sometimes, the driver bindings may know what phy they use.
> For example, when using device tree, the usb controller may have a
> phandler pointing to usb phy.
> 
> Signed-off-by: Richard Zhao <richard.zhao-KZfg59tc24xl57MIdRCFDg@public.gmane.org>
> Reviewed-by: Marek Vasut <marex-ynQEQJNshbs@public.gmane.org>
> Acked-by: Felipe Balbi <balbi-l0cyMroinI0@public.gmane.org>
> Tested-by: Subodh Nijsure <snijsure-4jo+YWezP1RWk0Htik3J/w@public.gmane.org>

[...]

> --- a/drivers/usb/chipidea/udc.c
> +++ b/drivers/usb/chipidea/udc.c
> @@ -1684,7 +1684,8 @@ static int udc_start(struct ci13xxx *ci)
>  
>  	ci->gadget.ep0 = &ci->ep0in->ep;
>  
> -	ci->transceiver = usb_get_transceiver();
> +	if (ci->global_phy) {
                           ^^^

This doesn't compile, closing curly brackets are missing.

> +		ci->transceiver = usb_get_transceiver();
>  
>  	if (ci->platdata->flags & CI13XXX_REQUIRE_TRANSCEIVER) {
>  		if (ci->transceiver == NULL) {
> @@ -1728,7 +1729,8 @@ static int udc_start(struct ci13xxx *ci)
>  remove_trans:
>  	if (ci->transceiver) {
>  		otg_set_peripheral(ci->transceiver->otg, &ci->gadget);
> -		usb_put_transceiver(ci->transceiver);
> +		if (ci->global_phy)
> +			usb_put_transceiver(ci->transceiver);
>  	}
>  
>  	dev_err(dev, "error = %i\n", retval);
> @@ -1737,7 +1739,7 @@ remove_dbg:
>  unreg_device:
>  	device_unregister(&ci->gadget.dev);
>  put_transceiver:
> -	if (ci->transceiver)
> +	if (ci->transceiver && ci->global_phy)
>  		usb_put_transceiver(ci->transceiver);
>  free_pools:
>  	dma_pool_destroy(ci->td_pool);
> @@ -1771,7 +1773,8 @@ static void udc_stop(struct ci13xxx *ci)
>  
>  	if (ci->transceiver) {
>  		otg_set_peripheral(ci->transceiver->otg, NULL);
> -		usb_put_transceiver(ci->transceiver);
> +		if (ci->global_phy)
> +			usb_put_transceiver(ci->transceiver);
>  	}
>  	dbg_remove_files(&ci->gadget.dev);
>  	device_unregister(&ci->gadget.dev);
> diff --git a/include/linux/usb/chipidea.h b/include/linux/usb/chipidea.h
> index be078f0..544825d 100644

Marc

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