| Message ID | 20180222131336.7712-2-laurent.pinchart+renesas@ideasonboard.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
Hi Laurent, Thanks for your patch. On 2018-02-22 15:13:33 +0200, Laurent Pinchart wrote: > The Renesas R-Car Gen2 and Gen3 SoCs have internal LVDS encoders. Add > corresponding device tree bindings. > > Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> > Reviewed-by: Rob Herring <robh@kernel.org> > --- > Changes since v1: > > - Move the SoC name before the IP name in compatible strings > - Rename parallel input to parallel RGB input > - Fixed "renesas,r8a7743-lvds" description > - Document the resets property > - Fixed typo > --- > .../bindings/display/bridge/renesas,lvds.txt | 56 ++++++++++++++++++++++ > MAINTAINERS | 1 + > 2 files changed, 57 insertions(+) > create mode 100644 Documentation/devicetree/bindings/display/bridge/renesas,lvds.txt > > diff --git a/Documentation/devicetree/bindings/display/bridge/renesas,lvds.txt b/Documentation/devicetree/bindings/display/bridge/renesas,lvds.txt > new file mode 100644 > index 000000000000..2b19ce51ec07 > --- /dev/null > +++ b/Documentation/devicetree/bindings/display/bridge/renesas,lvds.txt > @@ -0,0 +1,56 @@ > +Renesas R-Car LVDS Encoder > +========================== > + > +These DT bindings describe the LVDS encoder embedded in the Renesas R-Car > +Gen2, R-Car Gen3 and RZ/G SoCs. > + > +Required properties: > + > +- compatible : Shall contain one of > + - "renesas,r8a7743-lvds" for R8A7743 (RZ/G1M) compatible LVDS encoders > + - "renesas,r8a7790-lvds" for R8A7790 (R-Car H2) compatible LVDS encoders > + - "renesas,r8a7791-lvds" for R8A7791 (R-Car M2-W) compatible LVDS encoders > + - "renesas,r8a7793-lvds" for R8A7791 (R-Car M2-N) compatible LVDS encoders Small typo here s/R8A7791/R8A7793/, with that fixed Reviewed-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se> > + - "renesas,r8a7795-lvds" for R8A7795 (R-Car H3) compatible LVDS encoders > + - "renesas,r8a7796-lvds" for R8A7796 (R-Car M3-W) compatible LVDS encoders > + > +- reg: Base address and length for the memory-mapped registers > +- clocks: A phandle + clock-specifier pair for the functional clock > +- resets: A phandle + reset specifier for the module reset > + > +Required nodes: > + > +The LVDS encoder has two video ports. Their connections are modelled using the > +OF graph bindings specified in Documentation/devicetree/bindings/graph.txt. > + > +- Video port 0 corresponds to the parallel RGB input > +- Video port 1 corresponds to the LVDS output > + > +Each port shall have a single endpoint. > + > + > +Example: > + > + lvds0: lvds@feb90000 { > + compatible = "renesas,r8a7790-lvds"; > + reg = <0 0xfeb90000 0 0x1c>; > + clocks = <&cpg CPG_MOD 726>; > + resets = <&cpg 726>; > + > + 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 { > + }; > + }; > + }; > + }; > diff --git a/MAINTAINERS b/MAINTAINERS > index 2afba909724c..13c8ec11135a 100644 > --- a/MAINTAINERS > +++ b/MAINTAINERS > @@ -4744,6 +4744,7 @@ F: drivers/gpu/drm/rcar-du/ > F: drivers/gpu/drm/shmobile/ > F: include/linux/platform_data/shmob_drm.h > F: Documentation/devicetree/bindings/display/bridge/renesas,dw-hdmi.txt > +F: Documentation/devicetree/bindings/display/bridge/renesas,lvds.txt > F: Documentation/devicetree/bindings/display/renesas,du.txt > > DRM DRIVERS FOR ROCKCHIP > -- > Regards, > > Laurent Pinchart >
diff --git a/Documentation/devicetree/bindings/display/bridge/renesas,lvds.txt b/Documentation/devicetree/bindings/display/bridge/renesas,lvds.txt new file mode 100644 index 000000000000..2b19ce51ec07 --- /dev/null +++ b/Documentation/devicetree/bindings/display/bridge/renesas,lvds.txt @@ -0,0 +1,56 @@ +Renesas R-Car LVDS Encoder +========================== + +These DT bindings describe the LVDS encoder embedded in the Renesas R-Car +Gen2, R-Car Gen3 and RZ/G SoCs. + +Required properties: + +- compatible : Shall contain one of + - "renesas,r8a7743-lvds" for R8A7743 (RZ/G1M) compatible LVDS encoders + - "renesas,r8a7790-lvds" for R8A7790 (R-Car H2) compatible LVDS encoders + - "renesas,r8a7791-lvds" for R8A7791 (R-Car M2-W) compatible LVDS encoders + - "renesas,r8a7793-lvds" for R8A7791 (R-Car M2-N) compatible LVDS encoders + - "renesas,r8a7795-lvds" for R8A7795 (R-Car H3) compatible LVDS encoders + - "renesas,r8a7796-lvds" for R8A7796 (R-Car M3-W) compatible LVDS encoders + +- reg: Base address and length for the memory-mapped registers +- clocks: A phandle + clock-specifier pair for the functional clock +- resets: A phandle + reset specifier for the module reset + +Required nodes: + +The LVDS encoder has two video ports. Their connections are modelled using the +OF graph bindings specified in Documentation/devicetree/bindings/graph.txt. + +- Video port 0 corresponds to the parallel RGB input +- Video port 1 corresponds to the LVDS output + +Each port shall have a single endpoint. + + +Example: + + lvds0: lvds@feb90000 { + compatible = "renesas,r8a7790-lvds"; + reg = <0 0xfeb90000 0 0x1c>; + clocks = <&cpg CPG_MOD 726>; + resets = <&cpg 726>; + + 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 { + }; + }; + }; + }; diff --git a/MAINTAINERS b/MAINTAINERS index 2afba909724c..13c8ec11135a 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -4744,6 +4744,7 @@ F: drivers/gpu/drm/rcar-du/ F: drivers/gpu/drm/shmobile/ F: include/linux/platform_data/shmob_drm.h F: Documentation/devicetree/bindings/display/bridge/renesas,dw-hdmi.txt +F: Documentation/devicetree/bindings/display/bridge/renesas,lvds.txt F: Documentation/devicetree/bindings/display/renesas,du.txt DRM DRIVERS FOR ROCKCHIP