anish singh wrote: > On Tue, Sep 13, 2011 at 1:58 AM, Sakari Ailus <sakari.ailus@xxxxxx> wrote: >> On Mon, Sep 12, 2011 at 04:50:42PM +0200, Enrico wrote: >>> Hi, >> >> Hi Enrico, >> >>> While testing omap3isp+tvp5150 with latest Deepthy bt656 patches >>> (kernel 3.1rc4) i noticed that yavta hangs very often when grabbing >>> or, if not hanged, it grabs at max ~10fps. >>> >>> Then i noticed that tapping on the (serial) console made it "unblock" >>> for some frames, so i thought it doesn't prevent the cpu to go >>> idle/sleep. Using the boot arg "nohlt" the problem disappear and it >>> grabs at a steady 25fps. >>> >>> In the code i found a comment that says the camera can't be a wakeup >>> source but the camera powerdomain is instead used to decide to not go >>> idle, so at this point i think the camera powerdomain is not enabled >>> but i don't know how/where to enable it. Any ideas? >> >> I can confirm this indeed is the case --- ISP can't wake up the system --- >> but don't know how to prevent the system from going to sleep when using the >> ISP. > Had it been on android i think wakelock would have been very useful. I believe there are proper means to do this using more standard methods as well. Not being a PM expert, I don't know how. Cc Tero. -- Sakari Ailus sakari.ailus@xxxxxx -- 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
