Hi Kory, On Fri, 16 Jan 2026 18:02:05 +0100 "Kory Maincent (TI.com)" <[email protected]> wrote:
> To maintain backward compatibility while removing the deprecated > tilcdc_panel driver, add a tilcdc_panel_legacy subdriver that converts > the legacy "ti,tilcdc,panel" devicetree binding to the standard > panel-dpi binding at early boot. > > The conversion uses an embedded device tree overlay that is applied and > modified during subsys_initcall. The process: > > - Apply embedded overlay to create a tilcdc-panel-dpi node with > port/endpoint connections to the LCDC > - Copy all properties from the legacy panel node to the new > tilcdc-panel-dpi node > - Copy display-timings from the legacy panel > - Convert legacy panel-info properties (invert-pxl-clk, sync-edge) to > standard display timing properties (pixelclk-active, syncclk-active) > - Disable the legacy panel by removing its compatible property to > prevent the deprecated driver from binding > > The result is a standard tilcdc-panel-dpi node with proper endpoints and > timing properties, allowing the DRM panel infrastructure to work with > legacy devicetrees without modification. > > Other legacy panel-info properties are not migrated as they consistently > use default values across all mainline devicetrees and can be hardcoded > in the tilcdc driver. > > This feature is optional via CONFIG_DRM_TILCDC_PANEL_LEGACY and should > only be enabled for systems with legacy devicetrees containing > "ti,tilcdc,panel" nodes. > > Suggested-by: Tomi Valkeinen <[email protected]> > Link: > https://lore.kernel.org/all/[email protected]/ > Signed-off-by: Kory Maincent (TI.com) <[email protected]> > --- Looks good to me. Reviewed-by: Herve Codina <[email protected]> Best regards, Hervé
