Hi Mauro, On Sun, Sep 28, 2014 at 11:23:17PM -0300, Mauro Carvalho Chehab wrote: > This patch series addresses some issues with suspend2ram of devices > based on DRX-K. > > With this patch series, it is now possible to suspend to ram while > streaming. At resume, the stream will continue to play. > > While doing that, I added a few other changes: > > - I moved the init code to .init. That is an initial step to fix > suspend to disk; > > - There's a fix to an issue that happens at xc5000 removal (sent > already as a RFC patch); > > - A dprintk change at his logic to not require both a boot parameter and > a dynamic_printk enablement. It also re-adds __func__ to the printks, > that got previously removed; > > - It removes the unused mfe_sharing var from the dvb attach logic. > > Mauro Carvalho Chehab (6): > [media] em28xx: remove firmware before releasing xc5000 priv state > [media] drxk: Fix debug printks > [media] em28xx-dvb: remove unused mfe_sharing > [media] em28xx-dvb: handle to stop/start streaming at PM > [media] em28xx: move board-specific init code > [media] drxk: move device init code to .init callback > > drivers/media/dvb-frontends/drxk_hard.c | 117 ++++++++++++++++---------------- > drivers/media/tuners/xc5000.c | 2 +- > drivers/media/usb/em28xx/em28xx-dvb.c | 45 ++++++++---- > 3 files changed, 92 insertions(+), 72 deletions(-) Disregarding your mails from the "em28xx breaks after hibernate" that hibernate doesn't work for you, I decided to give these changes a try on top of today's media_tree.git (cf3167c -> 3.17.0-rc5-00741-g9a3fbd8), still inside qemu (can't upgrade/reboot my main machine right now). Works! For hibernate, using "echo reboot >/sys/power/disk", so the host driver cannot interfere with the qemu driver during hibernate. Qemu causes several USB resets to the device during hibernate -> resume, but the USB power is not cut. It works even while running dvbv5-zap and streaming to mplayer. I tried both suspend-to-ram and hibernate a couple of times, at least in Qemu it all works. There are a lot of drxk debug prints now enabled by default, not sure if that was intentional. Thanks, Johannes -- To unsubscribe from this list: send the line "unsubscribe linux-media" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
