Sergio, Yes, that is what I have seen as well. Although this specific function returns -ETIMEDOUT, a function farther up the call stack must be looping until success. -Jason > Jason, Felipe, > > Apparently it was a HW issue with the camkit I was using. > > I realized that when trying with another one :) > > Anyways, I appreciate your help and time. > > Jason, BTW, this messages kept appearing endlessly without being able to kill the \ > process, is that expected? > > Regards, > Sergio > > -----Original Message----- > From: linux-omap-owner@xxxxxxxxxxxxxxx [mailto:linux-omap-owner@xxxxxxxxxxxxxxx] On \ > Behalf Of Jason Marini > Sent: Monday, September 29, 2008 11:18 AM > To: linux-omap@xxxxxxxxxxxxxxx > Subject: Re: i2c errors on omap3430sdp > > > > Hi all, > > > > > > I'm currently testing the OV3640 CSI2 camera implementation for 3430SDP, and I \ > > > had \ it working some weeks ago. > > > Today I did a git pull from the master branch. > > > > > > Without changing anything i2c related, I now sometimes get a message that I \ > > > wasn't \ getting before: > > > i2c_omap i2c_omap.2: controller timed out waiting for start condition to finish > > > i2c_omap i2c_omap.2: controller timed out waiting for start condition to finish > > > > > > Anyone is seeing this? > > > > > > Any omap i2c registration changes that I could be missing? > > > > Is you driver new style i2c driver ??? > > > > Can you put some printks in your driver and try to narrow down which > > transfer is triggering this timeout ?? > > > > -- > > balbi > > -- > > Sergio, > > I recently added a patch to print out that message if the i2c bus took > longer than 1s to poll for the i2c start condition. I had been seeing > kernel lockups when doing soft resets, and JTAG debug pointed me an > infinite loop in the omap_i2c_read_reg function. I added a timeout, > as can be seen in my patch here: > http://marc.info/?l=linux-omap&m=121995188317408&w=2 > > You are seeing this message instead of a kernel hang :^) > > -Jason Marini -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
