From: Biju Das <[email protected]> Document the LVDS encoder IP found on the RZ/G3L SoC. It supports single-link mode. LVDS and the DSI interface share a peripheral clock and the MIPI_DSI_PRESET_N reset signal. However, the LVDS module cannot be used at the same time as MIPI-DSI.
Signed-off-by: Tommaso Merciai <[email protected]> Acked-by: Conor Dooley <[email protected]> Reviewed-by: Tommaso Merciai <[email protected]> Signed-off-by: Biju Das <[email protected]> --- v2->v3: * Collected tag. v2->v2[1]: * No change. [1] https://lore.kernel.org/all/[email protected]/ v1->v2: * Collected tag. --- .../bridge/renesas,r9a08g046-lvds.yaml | 128 ++++++++++++++++++ 1 file changed, 128 insertions(+) create mode 100644 Documentation/devicetree/bindings/display/bridge/renesas,r9a08g046-lvds.yaml diff --git a/Documentation/devicetree/bindings/display/bridge/renesas,r9a08g046-lvds.yaml b/Documentation/devicetree/bindings/display/bridge/renesas,r9a08g046-lvds.yaml new file mode 100644 index 000000000000..b1f6d020ae7b --- /dev/null +++ b/Documentation/devicetree/bindings/display/bridge/renesas,r9a08g046-lvds.yaml @@ -0,0 +1,128 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/display/bridge/renesas,r9a08g046-lvds.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Renesas RZ/G3L LVDS Encoder + +maintainers: + - Biju Das <[email protected]> + - Tommaso Merciai <[email protected]> + +description: | + This binding describe the LVDS encoder embedded in the Renesas RZ/G3L + SoC. The encoder can operate in LVDS Single-link mode with 4 lanes + (Data) + 1 lane (Clock). + +properties: + compatible: + const: renesas,r9a08g046-lvds + + reg: + maxItems: 1 + + clocks: + items: + - description: Peripheral clock + - description: PHY clock + - description: Dot clock + + clock-names: + items: + - const: pclk + - const: phyclk + - const: dotclk + + resets: + items: + - description: LVDS_RESET_N + - description: MIPI_DSI_PRESET_N + - description: MIPI_DSI_CMN_RSTB + - description: MIPI_DSI_ARESET_N + + reset-names: + items: + - const: lvdrst + - const: prst + - const: rst + - const: arst + + power-domains: + maxItems: 1 + + ports: + $ref: /schemas/graph.yaml#/properties/ports + + properties: + port@0: + $ref: /schemas/graph.yaml#/properties/port + description: Input channel, directly connected to the Display Unit. + + port@1: + $ref: /schemas/graph.yaml#/properties/port + description: | + Output channel, directly connected to the LVDS panel or bridge. + + required: + - port@0 + - port@1 + +required: + - compatible + - reg + - clocks + - clock-names + - resets + - reset-names + - power-domains + - ports + +additionalProperties: false + +examples: + - | + #include <dt-bindings/clock/renesas,r9a08g046-cpg.h> + + lvds-cmn@108a0000 { + compatible = "renesas,r9a08g046-lvds-cmn", + "simple-mfd", "syscon"; + reg = <0x108a0000 0x10000>; + #address-cells = <1>; + #size-cells = <1>; + + lvds0: lvds@10 { + compatible = "renesas,r9a08g046-lvds"; + reg = <0x10 0x8>; + clocks = <&cpg CPG_MOD R9A08G046_MIPI_DSI_PCLK>, + <&cpg CPG_MOD R9A08G046_LVDS_PLLCLK>, + <&cpg CPG_MOD R9A08G046_LVDS_CLK_DOT0>; + clock-names = "pclk", "phyclk", "dotclk"; + resets = <&cpg R9A08G046_LVDS_RESET_N>, + <&cpg R9A08G046_MIPI_DSI_PRESET_N>, + <&cpg R9A08G046_MIPI_DSI_CMN_RSTB>, + <&cpg R9A08G046_MIPI_DSI_ARESET_N>; + reset-names = "lvdrst", "prst", "rst", "arst"; + power-domains = <&cpg>; + + ports { + #address-cells = <1>; + #size-cells = <0>; + + port@0 { + reg = <0>; + lvds0_in: endpoint { + remote-endpoint = <&du_out_lvds0>; + }; + }; + + port@1 { + reg = <1>; + lvds0_out: endpoint { + remote-endpoint = <&panel_in>; + }; + }; + }; + }; + }; +... -- 2.43.0
