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Commit eb9b6c20 authored by Chunfeng Yun's avatar Chunfeng Yun Committed by Greg Kroah-Hartman
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usb: xhci-mtk: fix ISOC error when interval is zero 



[ Upstream commit 87173acc0d8f0987bda8827da35fff67f52ad15d ]

If the interval equal zero, needn't round up to power of two
for the number of packets in each ESIT, so fix it.

Signed-off-by: default avatarChunfeng Yun <chunfeng.yun@mediatek.com>
Signed-off-by: default avatarMathias Nyman <mathias.nyman@linux.intel.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: default avatarSasha Levin <sashal@kernel.org>
parent 8ddec6aa

drivers/usb/host/xhci-mtk-sch.c

+3 −1
Original line number Diff line number Diff line
@@ -113,7 +113,9 @@ static void setup_sch_info(struct usb_device *udev, 
		}



		if (ep_type == ISOC_IN_EP || ep_type == ISOC_OUT_EP) {

			if (esit_pkts <= sch_ep->esit)

			if (sch_ep->esit == 1)

				sch_ep->pkts = esit_pkts;

			else if (esit_pkts <= sch_ep->esit)

				sch_ep->pkts = 1;

			else

				sch_ep->pkts = roundup_pow_of_two(esit_pkts)