Messages in this thread |  | | Subject | Re: [PATCH] usb: xhci-mtk: fix the failure of bandwidth allocation | From | Chunfeng Yun <> | Date | Fri, 10 Jul 2020 13:58:12 +0800 |
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On Fri, 2020-07-10 at 11:14 +0800, Nicolas Boichat wrote: > On Fri, Jul 10, 2020 at 10:30 AM Chunfeng Yun <chunfeng.yun@mediatek.com> wrote: > > > > The wMaxPacketSize field of endpoint descriptor may be zero > > as default value in alternate interface, and they are not > > actually selected when start stream, so skip them when try to > > allocate bandwidth. > > > > Cc: stable <stable@vger.kernel.org> > > Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com> > > Add this? > Fixes: 0cbd4b34cda9dfd ("xhci: mediatek: support MTK xHCI host controller") Ok, thanks
> > > --- > > drivers/usb/host/xhci-mtk-sch.c | 4 ++++ > > 1 file changed, 4 insertions(+) > > > > diff --git a/drivers/usb/host/xhci-mtk-sch.c b/drivers/usb/host/xhci-mtk-sch.c > > index fea5555..45c54d56 100644 > > --- a/drivers/usb/host/xhci-mtk-sch.c > > +++ b/drivers/usb/host/xhci-mtk-sch.c > > @@ -557,6 +557,10 @@ static bool need_bw_sch(struct usb_host_endpoint *ep, > > if (is_fs_or_ls(speed) && !has_tt) > > return false; > > > > + /* skip endpoint with zero maxpkt */ > > + if (usb_endpoint_maxp(&ep->desc) == 0) > > + return false; > > + > > return true; > > } > > > > -- > > 1.9.1 > > _______________________________________________ > > Linux-mediatek mailing list > > Linux-mediatek@lists.infradead.org > > http://lists.infradead.org/mailman/listinfo/linux-mediatek
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