diff options
| author |   Chunfeng Yun <chunfeng.yun@mediatek.com> | 2021-08-13 14:30:50 +0800 |
|---|---|---|
| committer |   Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-08-13 13:05:50 +0200 |
| commit | e9ab75f26eb9354dfc03aea3401b8cfb42cd6718 (patch) | |
| tree | 86633cd7360051ee01940fc9059750792b9dd815 /drivers/usb/cdns3 | |
| parent | usb: mtu3: fix the wrong HS mult value (diff) | |
| download | wireguard-linux-e9ab75f26eb9354dfc03aea3401b8cfb42cd6718.tar.xz wireguard-linux-e9ab75f26eb9354dfc03aea3401b8cfb42cd6718.zip | |
usb: cdnsp: fix the wrong mult value for HS isoc or intr
usb_endpoint_maxp() only returns the bit[10:0] of wMaxPacketSize
of endpoint descriptor, not include bit[12:11] anymore, so use
usb_endpoint_maxp_mult() instead.
Fixes: 3d82904559f4 ("usb: cdnsp: cdns3 Add main part of Cadence USBSSP DRD Driver")
Cc: stable@vger.kernel.org
Acked-by: Felipe Balbi <balbi@kernel.org>
Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com>
Link: https://lore.kernel.org/r/1628836253-7432-4-git-send-email-chunfeng.yun@mediatek.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/usb/cdns3')
| -rw-r--r-- | drivers/usb/cdns3/cdnsp-mem.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/usb/cdns3/cdnsp-mem.c b/drivers/usb/cdns3/cdnsp-mem.c index a47948a1623f..ad9aee3f1e39 100644 --- a/drivers/usb/cdns3/cdnsp-mem.c +++ b/drivers/usb/cdns3/cdnsp-mem.c @@ -882,7 +882,7 @@ static u32 cdnsp_get_endpoint_max_burst(struct usb_gadget *g, if (g->speed == USB_SPEED_HIGH && (usb_endpoint_xfer_isoc(pep->endpoint.desc) || usb_endpoint_xfer_int(pep->endpoint.desc))) - return (usb_endpoint_maxp(pep->endpoint.desc) & 0x1800) >> 11; + return usb_endpoint_maxp_mult(pep->endpoint.desc) - 1; return 0; } |