| Message ID | 20220419143958.94873-1-marex@denx.de (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | [v2,1/2] dt-bindings: display: bridge: lt9211: Add Lontium LT9211 bridge driver | expand |
On Tue, 19 Apr 2022 at 16:40, Marek Vasut <marex@denx.de> wrote: > > Add bindings for Lontium LT9211 Single/Dual-Link DSI/LVDS or Single DPI to > Single-link/Dual-Link DSI/LVDS or Single DPI bridge. This chip is highly > capable at converting formats, but sadly it is also highly undocumented. > > Reviewed-by: Rob Herring <robh@kernel.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: Rob Herring <robh+dt@kernel.org> > 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: - Fix up s@i2c10@i2c@ in binding example > - Add RB from Rob > --- > .../display/bridge/lontium,lt9211.yaml | 117 ++++++++++++++++++ > 1 file changed, 117 insertions(+) > create mode 100644 Documentation/devicetree/bindings/display/bridge/lontium,lt9211.yaml > > diff --git a/Documentation/devicetree/bindings/display/bridge/lontium,lt9211.yaml b/Documentation/devicetree/bindings/display/bridge/lontium,lt9211.yaml > new file mode 100644 > index 0000000000000..9a6e9b25d14a9 > --- /dev/null > +++ b/Documentation/devicetree/bindings/display/bridge/lontium,lt9211.yaml > @@ -0,0 +1,117 @@ > +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) > +%YAML 1.2 > +--- > +$id: http://devicetree.org/schemas/display/bridge/lontium,lt9211.yaml# > +$schema: http://devicetree.org/meta-schemas/core.yaml# > + > +title: Lontium LT9211 DSI/LVDS/DPI to DSI/LVDS/DPI bridge. > + > +maintainers: > + - Marek Vasut <marex@denx.de> > + > +description: | > + The LT9211 are bridge devices which convert Single/Dual-Link DSI/LVDS > + or Single DPI to Single/Dual-Link DSI/LVDS or Single DPI. > + > +properties: > + compatible: > + enum: > + - lontium,lt9211 > + > + reg: > + maxItems: 1 > + > + interrupts: > + maxItems: 1 > + > + reset-gpios: > + maxItems: 1 > + description: GPIO connected to active high RESET pin. > + > + vccio-supply: > + description: Regulator for 1.8V IO power. > + > + ports: > + $ref: /schemas/graph.yaml#/properties/ports > + > + properties: > + port@0: > + $ref: /schemas/graph.yaml#/properties/port > + description: > + Primary MIPI DSI port-1 for MIPI input or > + LVDS port-1 for LVDS input or DPI input. > + > + port@1: > + $ref: /schemas/graph.yaml#/properties/port > + description: > + Additional MIPI port-2 for MIPI input or LVDS port-2 > + for LVDS input. Used in combination with primary > + port-1 to drive higher resolution displays > + > + port@2: > + $ref: /schemas/graph.yaml#/properties/port > + description: > + Primary MIPI DSI port-1 for MIPI output or > + LVDS port-1 for LVDS output or DPI output. > + > + port@3: > + $ref: /schemas/graph.yaml#/properties/port > + description: > + Additional MIPI port-2 for MIPI output or LVDS port-2 > + for LVDS output. Used in combination with primary > + port-1 to drive higher resolution displays. > + > + required: > + - port@0 > + - port@2 > + > +required: > + - compatible > + - reg > + - vccio-supply > + - ports > + > +additionalProperties: false > + > +examples: > + - | > + #include <dt-bindings/gpio/gpio.h> > + #include <dt-bindings/interrupt-controller/irq.h> > + > + i2c { > + #address-cells = <1>; > + #size-cells = <0>; > + > + hdmi-bridge@3b { > + compatible = "lontium,lt9211"; > + reg = <0x3b>; > + > + reset-gpios = <&tlmm 128 GPIO_ACTIVE_HIGH>; > + interrupts-extended = <&tlmm 84 IRQ_TYPE_EDGE_FALLING>; > + > + vccio-supply = <<9211_1v8>; > + > + ports { > + #address-cells = <1>; > + #size-cells = <0>; > + > + port@0 { > + reg = <0>; > + > + endpoint { > + remote-endpoint = <&dsi0_out>; > + }; > + }; > + > + port@2 { > + reg = <2>; > + > + endpoint { > + remote-endpoint = <&panel_in_lvds>; > + }; > + }; > + }; > + }; > + }; > + > +... Applied series to drm-misc-next Rob.
diff --git a/Documentation/devicetree/bindings/display/bridge/lontium,lt9211.yaml b/Documentation/devicetree/bindings/display/bridge/lontium,lt9211.yaml new file mode 100644 index 0000000000000..9a6e9b25d14a9 --- /dev/null +++ b/Documentation/devicetree/bindings/display/bridge/lontium,lt9211.yaml @@ -0,0 +1,117 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/display/bridge/lontium,lt9211.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Lontium LT9211 DSI/LVDS/DPI to DSI/LVDS/DPI bridge. + +maintainers: + - Marek Vasut <marex@denx.de> + +description: | + The LT9211 are bridge devices which convert Single/Dual-Link DSI/LVDS + or Single DPI to Single/Dual-Link DSI/LVDS or Single DPI. + +properties: + compatible: + enum: + - lontium,lt9211 + + reg: + maxItems: 1 + + interrupts: + maxItems: 1 + + reset-gpios: + maxItems: 1 + description: GPIO connected to active high RESET pin. + + vccio-supply: + description: Regulator for 1.8V IO power. + + ports: + $ref: /schemas/graph.yaml#/properties/ports + + properties: + port@0: + $ref: /schemas/graph.yaml#/properties/port + description: + Primary MIPI DSI port-1 for MIPI input or + LVDS port-1 for LVDS input or DPI input. + + port@1: + $ref: /schemas/graph.yaml#/properties/port + description: + Additional MIPI port-2 for MIPI input or LVDS port-2 + for LVDS input. Used in combination with primary + port-1 to drive higher resolution displays + + port@2: + $ref: /schemas/graph.yaml#/properties/port + description: + Primary MIPI DSI port-1 for MIPI output or + LVDS port-1 for LVDS output or DPI output. + + port@3: + $ref: /schemas/graph.yaml#/properties/port + description: + Additional MIPI port-2 for MIPI output or LVDS port-2 + for LVDS output. Used in combination with primary + port-1 to drive higher resolution displays. + + required: + - port@0 + - port@2 + +required: + - compatible + - reg + - vccio-supply + - ports + +additionalProperties: false + +examples: + - | + #include <dt-bindings/gpio/gpio.h> + #include <dt-bindings/interrupt-controller/irq.h> + + i2c { + #address-cells = <1>; + #size-cells = <0>; + + hdmi-bridge@3b { + compatible = "lontium,lt9211"; + reg = <0x3b>; + + reset-gpios = <&tlmm 128 GPIO_ACTIVE_HIGH>; + interrupts-extended = <&tlmm 84 IRQ_TYPE_EDGE_FALLING>; + + vccio-supply = <<9211_1v8>; + + ports { + #address-cells = <1>; + #size-cells = <0>; + + port@0 { + reg = <0>; + + endpoint { + remote-endpoint = <&dsi0_out>; + }; + }; + + port@2 { + reg = <2>; + + endpoint { + remote-endpoint = <&panel_in_lvds>; + }; + }; + }; + }; + }; + +...