linux_dsm_epyc7002/drivers/media/usb
Mauro Carvalho Chehab f6fef86341 [media] au0828: reset streaming when a new frequency is set
As reported by Trevor, doing several opening/streaming/closing
operations to the demux causes it to fail.

I was able to simulate this bug too. I also noticed that,
sometimes, changing channels with au0828, the same thing
happens.

Most of the issues seem to be due to some hardware bug, that
causes the device to not fill all the URBs allocated. When
the bug happens, the only known fix is to either replug the
device, or to send an USB reset to it.

There's also a hack a the au0828 driver that starts a thread
that tries to reset the device when a package doesn't start
with a sync.

One of the culpits for this bad hardware behavior seem to be
caused by the lack of stopping and restarting the stream every
time a new channel is set.

This patch warrants that the stream will be properly reset
every time the set_frontend callback is called, partially
solving the problem.

A complete fix, however, would also need to check the PM
conditions for the tuner and demux.

Reported-by: Trevor Graffa <tlgraffa@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2014-05-25 17:50:02 -03:00
..
au0828 [media] au0828: reset streaming when a new frequency is set 2014-05-25 17:50:02 -03:00
b2c2 [media] drivers: media: usb: b2c2: use usb_*_coherent() instead of pci_*_consistent() in flexcop-usb.c 2013-10-17 11:26:41 -03:00
cpia2 [media] media: Change variable type to bool 2013-10-17 11:24:35 -03:00
cx231xx [media] v4l: subdev: Move [gs]_std operation to video ops 2014-05-24 17:11:26 -03:00
dvb-usb [media] dib0700: fix RC support on Hauppauge Nova-TD 2014-05-25 17:44:19 -03:00
dvb-usb-v2 [media] rtl28xxu: add [1b80:d3af] Sveon STV27 2014-05-13 20:25:47 -03:00
em28xx [media] v4l: subdev: Move [gs]_std operation to video ops 2014-05-24 17:11:26 -03:00
gspca [media] media:gspca:dtcs033 Clean sparse check warnings on endianess 2014-04-23 10:07:52 -03:00
hdpvr [media] hdpvr: Fix memory leak in debug 2014-02-04 06:43:53 -02:00
pvrusb2 [media] v4l: subdev: Move [gs]_std operation to video ops 2014-05-24 17:11:26 -03:00
pwc [media] vb2: stop_streaming should return void 2014-04-23 10:12:51 -03:00
s2255 [media] s2255drv: fix memory leak s2255_probe() 2014-05-23 12:19:42 -03:00
siano [media] Siano: smsusb - Add a device id for PX-S1UD 2014-03-11 12:12:53 -03:00
stk1160 [media] media: stk1160: Avoid stack-allocated buffer for control URBs 2014-05-24 17:12:11 -03:00
stkwebcam [media] Add HCL T12Rg-H to STK webcam upside-down table 2013-09-26 07:15:49 -03:00
tlg2300 [media] Convert to snd_card_new() with a device pointer 2014-02-14 08:14:09 +01:00
tm6000 [media] v4l: subdev: Move [gs]_std operation to video ops 2014-05-24 17:11:26 -03:00
ttusb-budget [media] ttusb-budget: fix memory leak in ttusb_probe() 2013-06-21 15:06:51 -03:00
ttusb-dec [media] dvb-usb: fix error handling in ttusb_dec_probe() 2013-10-03 07:33:59 -03:00
usbtv [media] vb2: stop_streaming should return void 2014-04-23 10:12:51 -03:00
usbvision [media] v4l: subdev: Move [gs]_std operation to video ops 2014-05-24 17:11:26 -03:00
uvc [media] uvcvideo: Fix clock param realtime setting 2014-05-23 11:27:37 -03:00
zr364xx [media] v4l: Convert drivers to use monotonic timestamps 2012-12-21 10:56:43 -02:00
Kconfig [media] sn9c102: prepare for removal by moving it to staging 2013-12-20 13:41:36 -02:00
Makefile [media] sn9c102: prepare for removal by moving it to staging 2013-12-20 13:41:36 -02:00