Hi Ibtsam, [Adding Steve and Philipp in case they can provide some suggestions] On Thu, Apr 5, 2018 at 9:30 AM, Ibtsam Ul-Haq <ibtsam.haq.0x01@xxxxxxxxx> wrote: > Greetings everyone, > > I'm running Linux 4.14.31 on an IMX6 QuadPlus based Phytec board > (PCM-058). I have connected an mt9p031 sensor to ipu1_csi0. The > problem is that I am not seeing the /dev/media0 node. Can you share your dts? > I have already read the fix mentioned in a previous discussion: > > https://www.spinics.net/lists/linux-media/msg121965.html > > and that does not seem to be the problem in my case as I do get the > "ipu1_csi0_mux" registered. Running a grep on dmesg I get: > > [ 3.235383] imx-media: Registered subdev ipu1_vdic > [ 3.241134] imx-media: Registered subdev ipu2_vdic > [ 3.246830] imx-media: Registered subdev ipu1_ic_prp > [ 3.252115] imx-media: Registered subdev ipu1_ic_prpenc > [ 3.266991] imx-media: Registered subdev ipu1_ic_prpvf > [ 3.280228] imx-media: Registered subdev ipu2_ic_prp > [ 3.285580] imx-media: Registered subdev ipu2_ic_prpenc > [ 3.299335] imx-media: Registered subdev ipu2_ic_prpvf > [ 3.350034] imx-media: Registered subdev ipu1_csi0 > [ 3.363017] imx-media: Registered subdev ipu1_csi1 > [ 3.375523] imx-media: Registered subdev ipu2_csi0 > [ 3.388615] imx-media: Registered subdev ipu2_csi1 > [ 3.560351] imx-media: Registered subdev ipu1_csi0_mux > [ 3.566151] imx-media: Registered subdev ipu2_csi1_mux > [ 10.525497] imx-media: Registered subdev mt9p031 0-0048 > [ 10.530816] imx-media capture-subsystem: Entity type for entity > mt9p031 0-0048 was not initialized! > [ 10.569201] mt9p031 0-0048: MT9P031 detected at address 0x48 > [ 10.582895] imx-media: Registered subdev mt9p031 0-005d > [ 10.588335] imx-media capture-subsystem: Entity type for entity > mt9p031 0-005d was not initialized! > [ 10.618795] mt9p031 0-005d: MT9P031 not detected, wrong version 0xfffffffa Why do you have the camera in two I2C addresses: 0x48 and 0x5d? > Also my config does appear to have the required options activated; > running "zcat /proc/config.gz | egrep 'VIDEO_MUX|MUX_MMIO|VIDEO_IMX'" > I get: > > # CONFIG_MDIO_BUS_MUX_MMIOREG is not set > CONFIG_VIDEO_MUX=y > CONFIG_VIDEO_IMX_VDOA=m > CONFIG_VIDEO_IMX_MEDIA=y > CONFIG_VIDEO_IMX_CSI=y > CONFIG_MUX_MMIO=y > > I would really appreciate if anyone could help me trying to find out > what went wrong and why the /dev/media0 node is not showing up. > > Many thanks and best regards, > Ibtsam Haq
