This is a note to let you know that I've just added the patch titled
media: usb: uvc: make use of new usb_endpoint_maxp_mult()
to my usb git tree which can be found at
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git
in the usb-testing branch.
The patch will show up in the next release of the linux-next tree
(usually sometime within the next 24 hours during the week.)
The patch will be merged to the usb-next branch sometime soon,
after it passes testing, and the merge window is open.
If you have any questions about this process, please let me know.
>From 08295ee0e6976b060cd5c2a59877d8ea6379075c Mon Sep 17 00:00:00 2001
From: Felipe Balbi <felipe.balbi@xxxxxxxxxxxxxxx>
Date: Wed, 28 Sep 2016 13:22:53 +0300
Subject: media: usb: uvc: make use of new usb_endpoint_maxp_mult()
We have introduced a helper to calculate multiplier
value from wMaxPacketSize. Start using it.
Acked-by: Laurent Pinchart <laurent.pinchart@xxxxxxxxxxxxxxxx>
Cc: Mauro Carvalho Chehab <mchehab@xxxxxxxxxx>
Cc: <linux-media@xxxxxxxxxxxxxxx>
Signed-off-by: Felipe Balbi <felipe.balbi@xxxxxxxxxxxxxxx>
---
drivers/media/usb/uvc/uvc_video.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/drivers/media/usb/uvc/uvc_video.c b/drivers/media/usb/uvc/uvc_video.c
index b5589d5f5da4..11e0e5f4e1c2 100644
--- a/drivers/media/usb/uvc/uvc_video.c
+++ b/drivers/media/usb/uvc/uvc_video.c
@@ -1467,6 +1467,7 @@ static unsigned int uvc_endpoint_max_bpi(struct usb_device *dev,
struct usb_host_endpoint *ep)
{
u16 psize;
+ u16 mult;
switch (dev->speed) {
case USB_SPEED_SUPER:
@@ -1474,7 +1475,8 @@ static unsigned int uvc_endpoint_max_bpi(struct usb_device *dev,
return le16_to_cpu(ep->ss_ep_comp.wBytesPerInterval);
case USB_SPEED_HIGH:
psize = usb_endpoint_maxp(&ep->desc);
- return (psize & 0x07ff) * (1 + ((psize >> 11) & 3));
+ mult = usb_endpoint_maxp_mult(&ep->desc);
+ return (psize & 0x07ff) * mult;
case USB_SPEED_WIRELESS:
psize = usb_endpoint_maxp(&ep->desc);
return psize;
--
2.10.2
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