On Fri, Sep 15, 2017 at 3:26 PM, Steve Longerbeam <slongerbeam@xxxxxxxxx> wrote: > Hi Tim, > > > On 09/15/2017 02:26 PM, Tim Harvey wrote: >> >> Greetings, >> >> I'm testing Linux master built with imx_v6_v7_defconfig on a GW51xx which >> has an ADV7180 analog video decoder and am not seeing the imx6 /dev/media >> node get created: >> >> [ 0.000000] OF: fdt: Machine model: Gateworks Ventana i.MX6 Dual/Quad >> GW51XX >> ... >> [ 6.089039] imx-media: Registered subdev ipu1_vdic >> [ 6.094505] imx-media: Registered subdev ipu2_vdic >> [ 6.099851] imx-media: Registered subdev ipu1_ic_prp >> [ 6.105074] imx-media: Registered subdev ipu1_ic_prpenc >> [ 6.111346] ipu1_ic_prpenc: Registered ipu1_ic_prpenc capture as >> /dev/video0 >> [ 6.119007] imx-media: Registered subdev ipu1_ic_prpvf >> [ 6.124733] ipu1_ic_prpvf: Registered ipu1_ic_prpvf capture as >> /dev/video1 >> [ 6.131867] imx-media: Registered subdev ipu2_ic_prp >> [ 6.137125] imx-media: Registered subdev ipu2_ic_prpenc >> [ 6.142921] ipu2_ic_prpenc: Registered ipu2_ic_prpenc capture as >> /dev/video2 >> [ 6.150226] imx-media: Registered subdev ipu2_ic_prpvf >> [ 6.155934] ipu2_ic_prpvf: Registered ipu2_ic_prpvf capture as >> /dev/video3 >> [ 6.164011] imx-media: Registered subdev ipu1_csi0 >> [ 6.169768] ipu1_csi0: Registered ipu1_csi0 capture as /dev/video4 >> [ 6.176281] imx-media: Registered subdev ipu1_csi1 >> [ 6.181681] ipu1_csi1: Registered ipu1_csi1 capture as /dev/video5 >> [ 6.188189] imx-media: Registered subdev ipu2_csi0 >> [ 6.193680] ipu2_csi0: Registered ipu2_csi0 capture as /dev/video6 >> [ 6.200108] imx-media: Registered subdev ipu2_csi1 >> [ 6.205577] ipu2_csi1: Registered ipu2_csi1 capture as /dev/video7 >> ... >> [ 96.981117] adv7180 2-0020: chip found @ 0x20 (21a8000.i2c) >> [ 97.019674] imx-media: Registered subdev adv7180 2-0020 >> [ 97.019712] imx-media capture-subsystem: Entity type for entity adv7180 >> 2-0020 was not initialized! >> >> I suspect the failure of the adv7180 is causing the issue. Steve mentioned >> some time ago that this was an error that needed to be fixed upstream but >> I'm not clear if that is still the case. >> > > That does need fixing but is not the cause. > >> I haven't looked at IMX media drivers since they were accepted to mainline >> a few months back. Perhaps I'm simply forgetting to enable something in the >> kernel that imx_v6_v7_defconfig doesn't turn on? > > > Yes, it looks like you are missing the video-mux. Enable CONFIG_VIDEO_MUX > and CONFIG_MUX_MMIO. > Steve, Indeed that was it! What clued you into that being the missing component? Sounds like we need to enable that for imx_v6_v7_defconfig. Thanks! Tim
