Replace manual decoding of psize in uvc_parse_streaming(), with the code
from uvc_endpoint_max_bpi(). It also handles usb3 devices.
Signed-off-by: Ricardo Ribalda <ribalda@xxxxxxxxxxxx>
---
drivers/media/usb/uvc/uvc_driver.c | 4 +---
drivers/media/usb/uvc/uvc_video.c | 3 +--
drivers/media/usb/uvc/uvcvideo.h | 1 +
3 files changed, 3 insertions(+), 5 deletions(-)
diff --git a/drivers/media/usb/uvc/uvc_driver.c b/drivers/media/usb/uvc/uvc_driver.c
index dda0f0aa78b8..977566aa2c89 100644
--- a/drivers/media/usb/uvc/uvc_driver.c
+++ b/drivers/media/usb/uvc/uvc_driver.c
@@ -1009,9 +1009,7 @@ static int uvc_parse_streaming(struct uvc_device *dev,
streaming->header.bEndpointAddress);
if (ep == NULL)
continue;
-
- psize = le16_to_cpu(ep->desc.wMaxPacketSize);
- psize = (psize & 0x07ff) * (1 + ((psize >> 11) & 3));
+ psize = uvc_endpoint_max_bpi(dev->udev, ep);
if (psize > streaming->maxpsize)
streaming->maxpsize = psize;
}
diff --git a/drivers/media/usb/uvc/uvc_video.c b/drivers/media/usb/uvc/uvc_video.c
index a2dcfeaaac1b..9dc0a5dba158 100644
--- a/drivers/media/usb/uvc/uvc_video.c
+++ b/drivers/media/usb/uvc/uvc_video.c
@@ -1756,8 +1756,7 @@ static void uvc_video_stop_transfer(struct uvc_streaming *stream,
/*
* Compute the maximum number of bytes per interval for an endpoint.
*/
-static unsigned int uvc_endpoint_max_bpi(struct usb_device *dev,
- struct usb_host_endpoint *ep)
+u16 uvc_endpoint_max_bpi(struct usb_device *dev, struct usb_host_endpoint *ep)
{
u16 psize;
diff --git a/drivers/media/usb/uvc/uvcvideo.h b/drivers/media/usb/uvc/uvcvideo.h
index 143230b3275b..28eb337a6cfb 100644
--- a/drivers/media/usb/uvc/uvcvideo.h
+++ b/drivers/media/usb/uvc/uvcvideo.h
@@ -911,6 +911,7 @@ void uvc_simplify_fraction(u32 *numerator, u32 *denominator,
u32 uvc_fraction_to_interval(u32 numerator, u32 denominator);
struct usb_host_endpoint *uvc_find_endpoint(struct usb_host_interface *alts,
u8 epaddr);
+u16 uvc_endpoint_max_bpi(struct usb_device *dev, struct usb_host_endpoint *ep);
/* Quirks support */
void uvc_video_decode_isight(struct uvc_urb *uvc_urb,
--
2.35.1.1094.g7c7d902a7c-goog
