Ensure DSI node has correct firmware-name property.
| Cause | Description | |-------|-------------| | Missing firmware files | DSI controller initialization requires binary blobs (e.g., dsi_init.bin , panel_*.bin ) not included in the build. | | Incomplete vendor repository | Proprietary DSI binaries from SoC vendors (e.g., TI, Qualcomm) are not properly extracted or linked. | | Build configuration error | Kernel config missing CONFIG_DRM_MIPI_DSI or related options, causing DSI modules not to be built. | | Outdated toolchain | Some DSI binaries are precompiled for specific ARM versions; mismatched toolchain fails to locate or use them. | | Path/environment issue | Scripts expect DSI binaries in /lib/firmware/ , /vendor/firmware/ , or a custom path that is empty. | dsi binaries are missing