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On 2/15/26 09:11, Biju Das wrote: > Hi Tommaso, > > Thanks for the patch. > >> -----Original Message----- >> From: Tommaso Merciai >> Sent: 13 February 2026 16:28 >> Subject: [PATCH v5 09/20] dt-bindings: display: renesas,rzg2l-du: Add support for RZ/G3E SoC >> >> The RZ/G3E Soc has 2 LCD controller (LCDC), contain a Frame Compression Processor (FCPVD), a Video >> Signal Processor (VSPD), Video Signal Processor (VSPD), and Display Unit (DU). >> >> - LCDC0 supports DSI and LVDS (single or dual-channel) outputs. >> - LCDC1 supports DSI, LVDS (single-channel), and RGB outputs. >> >> Add new SoC-specific compatible string 'renesas,r9a09g047-du'. >> >> Signed-off-by: Tommaso Merciai >> --- >> v4->v5: >> - Dropped renesas,id property and updated bindings >> accordingly. >> >> v2->v3: >> - No changes. >> >> v2->v3: >> - No changes. >> >> v1->v2: >> - Use single compatible string instead of multiple compatible strings >> for the two DU instances, leveraging a 'renesas,id' property to >> differentiate between DU0 and DU1. >> - Updated commit message accordingly. >> >> .../bindings/display/renesas,rzg2l-du.yaml | 22 +++++++++++++++++++ >> 1 file changed, 22 insertions(+) >> >> diff --git a/Documentation/devicetree/bindings/display/renesas,rzg2l-du.yaml >> b/Documentation/devicetree/bindings/display/renesas,rzg2l-du.yaml >> index 2cc66dcef870..be50b153d651 100644 >> --- a/Documentation/devicetree/bindings/display/renesas,rzg2l-du.yaml >> +++ b/Documentation/devicetree/bindings/display/renesas,rzg2l-du.yaml >> @@ -20,6 +20,7 @@ properties: >> - enum: >> - renesas,r9a07g043u-du # RZ/G2UL >> - renesas,r9a07g044-du # RZ/G2{L,LC} >> + - renesas,r9a09g047-du # RZ/G3E >> - renesas,r9a09g057-du # RZ/V2H(P) >> - items: >> - enum: >> @@ -137,6 +138,27 @@ allOf: >> >> required: >> - port@0 >> + - if: >> + properties: >> + compatible: >> + contains: >> + const: renesas,r9a09g047-du >> + then: >> + properties: >> + ports: >> + properties: >> + port@0: >> + description: DSI >> + port@1: >> + description: LVDS Channel 0 >> + port@2: >> + description: LVDS Channel 1 >> + port@3: >> + description: DPAD >> + >> + required: >> + - port@0 >> + - port@1 > > > LCDC0 has port@0, port@1 and port@2 > LCDC1 has port@0, port@1 and port@3 > > Looks like from the above port@2 and port@3 are optional?? As we are using the the same compatible for both DUs the only way I found to differentiate betweeen DU0 and DU1 is the introduction of renesas,id = <0> -> DU0 renesas,id = <1> -> DU1 Like proposed in v4 [0]. What do you think? Suggestions? > Also not sure to make port@1 for DPAD for consistency with RZ/G2L?? > Do you see any advantage by making port@1 for LVDS0? I'm planning to rework v6 with the following: - if: properties: compatible: contains: const: renesas,r9a09g047-du then: properties: ports: properties: port@0: description: DSI port@1: description: DPAD port@2: description: LVDS, Channel 0 port@3: description: LVDS, Channel 1 required: - port@0 - port@3 > > Cheers, > Biju > > [0] https://patchwork.kernel.org/project/linux-renesas-soc/patch/4986c5a3c5cda9e754ed1f9f7121b32e9bf4499f.1770030493.git.tommaso.merciai.xr@bp.renesas.com/ Kind Regards, Tommaso