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Interfacing (DSI, CSI, I2C, etc.) • Re: Need help troubleshooting cm5 to sn65dsi84 to dual link lvds panel

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I altered my timings at your suggestion and i do not get that prior fault

Code:

[    0.025943] /axi/pcie@1000120000/rp1/i2c@88000/bridge@2c: Fixed dependency cycle(s) with /axi/pcie@1000120000/rp1/dsi@110000[    0.025950] /axi/pcie@1000120000/rp1/i2c@88000/bridge@2c: Fixed dependency cycle(s) with /panel[    0.025987] /axi/pcie@1000120000/rp1/dsi@110000: Fixed dependency cycle(s) with /axi/pcie@1000120000/rp1/i2c@88000/bridge@2c[    0.026141] /axi/pcie@1000120000/rp1/i2c@88000/bridge@2c: Fixed dependency cycle(s) with /axi/pcie@1000120000/rp1/dsi@110000[    0.026149] /axi/pcie@1000120000/rp1/i2c@88000/bridge@2c: Fixed dependency cycle(s) with /panel[    0.026192] /axi/pcie@1000120000/rp1/dsi@110000: Fixed dependency cycle(s) with /axi/pcie@1000120000/rp1/i2c@88000/bridge@2c[    0.746007] /axi/pcie@1000120000/rp1/i2c@88000/bridge@2c: Fixed dependency cycle(s) with /axi/pcie@1000120000/rp1/dsi@110000[    0.746016] /axi/pcie@1000120000/rp1/i2c@88000/bridge@2c: Fixed dependency cycle(s) with /panel[    0.762154] /axi/pcie@1000120000/rp1/i2c@88000/bridge@2c: Fixed dependency cycle(s) with /axi/pcie@1000120000/rp1/dsi@110000[    0.762178] /axi/pcie@1000120000/rp1/dsi@110000: Fixed dependency cycle(s) with /axi/pcie@1000120000/rp1/i2c@88000/bridge@2c[    4.458262] systemd[1]: Starting modprobe@drm.service - Load Kernel Module drm...[    5.264140] /panel: Fixed dependency cycle(s) with /axi/pcie@1000120000/rp1/i2c@88000/bridge@2c[    5.264193] /axi/pcie@1000120000/rp1/i2c@88000/bridge@2c: Fixed dependency cycle(s) with /panel[    5.312240] sn65dsi83 10-002c: supply vcc not found, using dummy regulator[    5.324217] sn65dsi83 10-002c: supply vcc not found, using dummy regulator[    5.330954] v3d 1002000000.v3d: [drm] Transparent Hugepage support is recommended for optimal performance on this platform![    5.332381] drm-rp1-dsi 1f00118000.dsi: bcm2712_iommu_of_xlate: MMU 1000005280.iommu[    5.332387] drm-rp1-dsi 1f00118000.dsi: bcm2712_iommu_probe_device: MMU 1000005280.iommu[    5.332577] drm-rp1-dsi 1f00118000.dsi: bcm2712_iommu_device_group: MMU 1000005280.iommu[    5.333134] drm-rp1-dsi 1f00118000.dsi: Adding to iommu group 2[    5.333140] drm-rp1-dsi 1f00118000.dsi: bcm2712_iommu_attach_dev: MMU 1000005280.iommu[    5.334002] [drm] Initialized v3d 1.0.0 for 1002000000.v3d on minor 0[    5.345017] sn65dsi83 10-002c: supply vcc not found, using dummy regulator[    5.345107] drm-rp1-dsi 1f00118000.dsi: rp1dsi_host_attach: Attach DSI device name=sn65dsi83 channel=0 lanes=3 format=0 flags=0x2e3 hs_rate=0 lp_rate=0[    5.355493] [drm] Initialized drm-rp1-dsi 1.0.0 for 1f00118000.dsi on minor 1[    5.372288] drm-rp1-dsi 1f00118000.dsi: [drm] rp1dsi: Command time (outvact): 22[    5.372695] drm-rp1-dsi 1f00118000.dsi: [drm] rp1dsi: Nominal Byte clock 88750000 DPI clock 88750000 (parent rate 88750000)[    5.446709] drm-rp1-dsi 1f00118000.dsi: [drm] fb0: drm-rp1-dsidrmf frame buffer device[    5.469760] vc4-drm axi:gpu: bcm2712_iommu_of_xlate: MMU 1000005200.iommu[    5.469770] vc4-drm axi:gpu: bcm2712_iommu_probe_device: MMU 1000005200.iommu[    5.469776] vc4-drm axi:gpu: bcm2712_iommu_device_group: MMU 1000005200.iommu[    5.469782] vc4-drm axi:gpu: Adding to iommu group 1[    5.469785] vc4-drm axi:gpu: bcm2712_iommu_attach_dev: MMU 1000005200.iommu[    5.473472] drm-rp1-dsi 1f00118000.dsi: rp1dsi_bind succeeded[    5.473643] vc4-drm axi:gpu: bound 107c580000.hvs (ops vc4_hvs_ops [vc4])[    5.583191] vc4-drm axi:gpu: bound 107c701400.hdmi (ops vc4_hdmi_ops [vc4])[    5.612509] vc4-drm axi:gpu: bound 107c706400.hdmi (ops vc4_hdmi_ops [vc4])[    5.622009] vc4-drm axi:gpu: bound 107c500000.mop (ops vc4_txp_ops [vc4])[    5.624337] vc4-drm axi:gpu: bound 107c501000.moplet (ops vc4_txp_ops [vc4])[    5.624441] vc4-drm axi:gpu: bound 107c410000.pixelvalve (ops vc4_crtc_ops [vc4])[    5.624504] vc4-drm axi:gpu: bound 107c411000.pixelvalve (ops vc4_crtc_ops [vc4])[    5.626011] [drm] Initialized vc4 0.0.0 for axi:gpu on minor 2[    5.629629] vc4-drm axi:gpu: [drm] Cannot find any crtc or sizes[    5.633035] vc4-drm axi:gpu: [drm] Cannot find any crtc or sizes[    5.636414] vc4-drm axi:gpu: [drm] Cannot find any crtc or sizes
This is dmesg now( with the same filters applied)

Is there any reason not to use DSI0? At this moment i am hardwired in on dsi0 and i2c10.

Statistics: Posted by jeremythedestroyer — Thu Jul 31, 2025 2:04 pm



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