On Fri, Jun 1, 2018 at 3:23 PM, Sakari Ailus <sakari.ailus@xxxxxx> wrote: > On Fri, Jun 01, 2018 at 10:49:56AM +0530, Jagan Teki wrote: >> Hi Philipp, >> >> On Fri, Jun 1, 2018 at 12:36 AM, Philipp Zabel <pza@xxxxxxxxxxxxxx> wrote: >> > Hi Jagan, >> > >> > On Thu, May 31, 2018 at 08:39:20PM +0530, Jagan Teki wrote: >> >> Hi All, >> >> >> >> I'm trying to verify MIPI-CSI2 OV5640 camera on i.MX6 platform with >> >> Mainline Linux. >> >> >> >> I've followed these[1] instructions to configure MC links and pads >> >> based on the probing details from dmesg and trying to capture >> >> ipu1_ic_prpenc capture (/dev/video1) but it's not working. >> >> >> >> Can anyone help me to verify whether I configured all the details >> >> properly if not please suggest. >> >> >> >> I'm pasting full log here, so-that anyone can comment in line and dt >> >> changes are at [2] >> >> >> >> Log: >> >> ----- >> > [...] >> >> # media-ctl -l "'ov5640 2-003c':0 -> 'imx6-mipi-csi2':0[1]" >> >> # media-ctl -l "'imx6-mipi-csi2':2 -> 'ipu1_csi1':0[1]" >> >> # media-ctl -l "'ipu1_csi1':1 -> 'ipu1_ic_prp':0[1]" >> >> # media-ctl -l "'ipu1_ic_prp':1 -> 'ipu1_ic_prpenc':0[1]" >> >> # media-ctl -l "'ipu1_ic_prpenc':1 -> 'ipu1_ic_prpenc capture':0[1]" >> > >> > Here you configure a pipeline that ends at ipu1 prpenc capture ... >> > >> >> # med# media-ctl -p >> > [...] >> >> - entity 18: ipu1_ic_prpenc capture (1 pad, 1 link) >> >> type Node subtype V4L flags 0 >> >> device node name /dev/video0 >> > >> > ... which is /dev/video0 ... >> > >> > [...] >> >> - entity 27: ipu1_ic_prpvf capture (1 pad, 1 link) >> >> type Node subtype V4L flags 0 >> >> device node name /dev/video1 >> > >> > ... not /dev/video1 ... >> >> True, thanks for pointing it. >> >> I actually tried even on video0 which I forgot to post the log [4]. >> Now I understand I'm trying for wrong device to capture look like >> video0 which is ipu1 prepenc firing kernel oops. I'm trying to debug >> this and let me know if have any suggestion to look into. >> >> [ 56.800074] imx6-mipi-csi2: LP-11 timeout, phy_state = 0x000002b0 >> [ 57.369660] ipu1_ic_prpenc: EOF timeout >> [ 57.849692] ipu1_ic_prpenc: wait last EOF timeout >> [ 57.855703] ipu1_ic_prpenc: pipeline start failed with -110 > > I don't have the hardware but this looks like the host cannot detect the > LP-11 state on the sensor (both wires high?). Some sensors cannot do this > without starting streaming at the same time. I'd expect the same if there > are problems in lane configuration etc. You mean the lane configurations in hardware? but this sensor is working with imx kernel. what do you mean by wires here? lanes. Jagan. -- Jagan Teki Senior Linux Kernel Engineer | Amarula Solutions U-Boot, Linux | Upstream Maintainer Hyderabad, India.
