| Message ID | 20220423021625.512380-1-marex@denx.de (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | [v3,1/2] dt-bindings: display: bridge: ldb: Implement simple NXP i.MX8MP LDB bridge | expand |
On Sat, Apr 23, 2022 at 04:16:24AM +0200, Marek Vasut wrote: > The i.MX8MP contains two syscon registers which are responsible > for configuring the on-SoC DPI-to-LVDS serializer. Add DT binding > which represents this serializer as a bridge. > > Acked-by: Sam Ravnborg <sam@ravnborg.org> > Signed-off-by: Marek Vasut <marex@denx.de> > Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com> > Cc: Lucas Stach <l.stach@pengutronix.de> > Cc: Maxime Ripard <maxime@cerno.tech> > Cc: Peng Fan <peng.fan@nxp.com> > Cc: Rob Herring <robh+dt@kernel.org> > Cc: Robby Cai <robby.cai@nxp.com> > Cc: Robert Foss <robert.foss@linaro.org> > Cc: Sam Ravnborg <sam@ravnborg.org> > Cc: Thomas Zimmermann <tzimmermann@suse.de> > Cc: devicetree@vger.kernel.org > To: dri-devel@lists.freedesktop.org > --- > V2: - Consistently use fsl,imx8mp-ldb as compatible > - Drop items: from compatible: > - Replace minItems with maxItems in clocks: > - Drop quotes from clock-names const: ldb > - Rename syscon to fsl,syscon > - Use generic name of ldb-lvds in example > V3: - Add AB from Sam > - Consistently use MX8MP > --- > .../bindings/display/bridge/nxp,ldb.yaml | 96 +++++++++++++++++++ > 1 file changed, 96 insertions(+) > create mode 100644 Documentation/devicetree/bindings/display/bridge/nxp,ldb.yaml > > diff --git a/Documentation/devicetree/bindings/display/bridge/nxp,ldb.yaml b/Documentation/devicetree/bindings/display/bridge/nxp,ldb.yaml > new file mode 100644 > index 000000000000..9c1807f2ae43 > --- /dev/null > +++ b/Documentation/devicetree/bindings/display/bridge/nxp,ldb.yaml > @@ -0,0 +1,96 @@ > +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) > +%YAML 1.2 > +--- > +$id: http://devicetree.org/schemas/display/bridge/nxp,ldb.yaml# > +$schema: http://devicetree.org/meta-schemas/core.yaml# > + > +title: NXP i.MX8MP DPI to LVDS bridge chip > + > +maintainers: > + - Marek Vasut <marex@denx.de> > + > +description: | > + The i.MX8MP contains two syscon registers which are responsible > + for configuring the on-SoC DPI-to-LVDS serializer. This describes > + those registers as bridge within the DT. > + > +properties: > + compatible: > + const: fsl,imx8mp-ldb > + > + clocks: > + maxItems: 1 > + > + clock-names: > + const: ldb > + > + fsl,syscon: > + $ref: /schemas/types.yaml#/definitions/phandle > + description: A phandle to media block controller. > + > + ports: > + $ref: /schemas/graph.yaml#/properties/ports > + > + properties: > + port@0: > + $ref: /schemas/graph.yaml#/properties/port > + description: Video port for DPI input. > + > + port@1: > + $ref: /schemas/graph.yaml#/properties/port > + description: Video port for LVDS Channel-A output (panel or bridge). > + > + port@2: > + $ref: /schemas/graph.yaml#/properties/port > + description: Video port for LVDS Channel-B output (panel or bridge). > + > + required: > + - port@0 > + - port@1 > + > +required: > + - compatible > + - clocks > + - fsl,syscon > + - ports > + > +additionalProperties: false > + > +examples: > + - | > + #include <dt-bindings/clock/imx8mp-clock.h> > + > + bridge { > + compatible = "fsl,imx8mp-ldb"; > + clocks = <&clk IMX8MP_CLK_MEDIA_LDB>; > + clock-names = "ldb"; > + fsl,syscon = <&media_blk_ctrl>; This binding should be a child of &media_blk_ctrl. And then do away with this property. > + > + ports { > + #address-cells = <1>; > + #size-cells = <0>; > + > + port@0 { > + reg = <0>; > + > + ldb_from_lcdif2: endpoint { > + remote-endpoint = <&lcdif2_to_ldb>; > + }; > + }; > + > + port@1 { > + reg = <1>; > + > + ldb_lvds_ch0: endpoint { > + remote-endpoint = <&ldb_to_lvdsx4panel>; > + }; > + }; > + > + port@2 { > + reg = <2>; > + > + ldb_lvds_ch1: endpoint { > + }; > + }; > + }; > + }; > -- > 2.35.1 > >
diff --git a/Documentation/devicetree/bindings/display/bridge/nxp,ldb.yaml b/Documentation/devicetree/bindings/display/bridge/nxp,ldb.yaml new file mode 100644 index 000000000000..9c1807f2ae43 --- /dev/null +++ b/Documentation/devicetree/bindings/display/bridge/nxp,ldb.yaml @@ -0,0 +1,96 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/display/bridge/nxp,ldb.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: NXP i.MX8MP DPI to LVDS bridge chip + +maintainers: + - Marek Vasut <marex@denx.de> + +description: | + The i.MX8MP contains two syscon registers which are responsible + for configuring the on-SoC DPI-to-LVDS serializer. This describes + those registers as bridge within the DT. + +properties: + compatible: + const: fsl,imx8mp-ldb + + clocks: + maxItems: 1 + + clock-names: + const: ldb + + fsl,syscon: + $ref: /schemas/types.yaml#/definitions/phandle + description: A phandle to media block controller. + + ports: + $ref: /schemas/graph.yaml#/properties/ports + + properties: + port@0: + $ref: /schemas/graph.yaml#/properties/port + description: Video port for DPI input. + + port@1: + $ref: /schemas/graph.yaml#/properties/port + description: Video port for LVDS Channel-A output (panel or bridge). + + port@2: + $ref: /schemas/graph.yaml#/properties/port + description: Video port for LVDS Channel-B output (panel or bridge). + + required: + - port@0 + - port@1 + +required: + - compatible + - clocks + - fsl,syscon + - ports + +additionalProperties: false + +examples: + - | + #include <dt-bindings/clock/imx8mp-clock.h> + + bridge { + compatible = "fsl,imx8mp-ldb"; + clocks = <&clk IMX8MP_CLK_MEDIA_LDB>; + clock-names = "ldb"; + fsl,syscon = <&media_blk_ctrl>; + + ports { + #address-cells = <1>; + #size-cells = <0>; + + port@0 { + reg = <0>; + + ldb_from_lcdif2: endpoint { + remote-endpoint = <&lcdif2_to_ldb>; + }; + }; + + port@1 { + reg = <1>; + + ldb_lvds_ch0: endpoint { + remote-endpoint = <&ldb_to_lvdsx4panel>; + }; + }; + + port@2 { + reg = <2>; + + ldb_lvds_ch1: endpoint { + }; + }; + }; + };