| Message ID | 20221124102056.393220-4-treapking@chromium.org |
|---|---|
| State | New |
| Headers | show |
| Series | Register Type-C mode-switch in DP bridge endpoints | expand |
On 24/11/2022 11:20, Pin-yen Lin wrote: > Analogix 7625 can be used in systems to switch the DP traffic between > two downstreams, which can be USB Type-C DisplayPort alternate mode > lane or regular DisplayPort output ports. > > Update the binding to accommodate this usage by introducing a > data-lanes and a mode-switch property on endpoints. > > Also include the link to the product brief in the bindings. > > Signed-off-by: Pin-yen Lin <treapking@chromium.org> > > --- > > Changes in v6: > - Remove switches node and use endpoints and data-lanes property to > describe the connections. Except missing testing few things... > > .../display/bridge/analogix,anx7625.yaml | 73 ++++++++++++++++++- > 1 file changed, 71 insertions(+), 2 deletions(-) > > diff --git a/Documentation/devicetree/bindings/display/bridge/analogix,anx7625.yaml b/Documentation/devicetree/bindings/display/bridge/analogix,anx7625.yaml > index 4590186c4a0b..5fdbf1f3bab8 100644 > --- a/Documentation/devicetree/bindings/display/bridge/analogix,anx7625.yaml > +++ b/Documentation/devicetree/bindings/display/bridge/analogix,anx7625.yaml > @@ -12,7 +12,8 @@ maintainers: > > description: | > The ANX7625 is an ultra-low power 4K Mobile HD Transmitter > - designed for portable devices. > + designed for portable devices. Product brief is available at > + https://www.analogix.com/en/system/files/AA-002291-PB-6-ANX7625_ProductBrief.pdf > > properties: > compatible: > @@ -112,10 +113,36 @@ properties: > data-lanes: true > > port@1: > - $ref: /schemas/graph.yaml#/properties/port > + $ref: /schemas/graph.yaml#/properties/port-base I don't understand why you are changing this line. > description: > Video port for panel or connector. > > + patternProperties: > + "^endpoint@[01]$": > + $ref: /schemas/media/video-interfaces.yaml# > + type: object > + unevaluatedProperties: false > + > + properties: > + reg: > + maxItems: 1 > + > + remote-endpoint: true > + > + data-lanes: > + minItems: 1 > + uniqueItems: true These are confusing... you allow only one item, so why minItems and uniqueItems? > + items: > + - enum: [ 0, 1, 2, 3] > + > + mode-switch: > + type: boolean > + description: Register this node as a Type-C mode switch or not. > + > + required: > + - reg > + - remote-endpoint > + > required: > - port@0 > - port@1 > @@ -186,3 +213,45 @@ examples: > }; > }; > }; > + - | > + &i2c3 { > + anx_bridge_dp: anx7625-dp@58 { Messed up indentation. > + compatible = "analogix,anx7625 Node names should be generic. https://devicetree-specification.readthedocs.io/en/latest/chapter2-devicetree-basics.html#generic-names-recommendation "; > + reg = <0x58>; Best regards, Krzysztof
Hi Krzysztof, Thanks for the review. On Mon, Nov 28, 2022 at 4:58 AM Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> wrote: > > On 24/11/2022 11:20, Pin-yen Lin wrote: > > Analogix 7625 can be used in systems to switch the DP traffic between > > two downstreams, which can be USB Type-C DisplayPort alternate mode > > lane or regular DisplayPort output ports. > > > > Update the binding to accommodate this usage by introducing a > > data-lanes and a mode-switch property on endpoints. > > > > Also include the link to the product brief in the bindings. > > > > Signed-off-by: Pin-yen Lin <treapking@chromium.org> > > > > --- > > > > Changes in v6: > > - Remove switches node and use endpoints and data-lanes property to > > describe the connections. > > Except missing testing few things... > > > > > .../display/bridge/analogix,anx7625.yaml | 73 ++++++++++++++++++- > > 1 file changed, 71 insertions(+), 2 deletions(-) > > > > diff --git a/Documentation/devicetree/bindings/display/bridge/analogix,anx7625.yaml b/Documentation/devicetree/bindings/display/bridge/analogix,anx7625.yaml > > index 4590186c4a0b..5fdbf1f3bab8 100644 > > --- a/Documentation/devicetree/bindings/display/bridge/analogix,anx7625.yaml > > +++ b/Documentation/devicetree/bindings/display/bridge/analogix,anx7625.yaml > > @@ -12,7 +12,8 @@ maintainers: > > > > description: | > > The ANX7625 is an ultra-low power 4K Mobile HD Transmitter > > - designed for portable devices. > > + designed for portable devices. Product brief is available at > > + https://www.analogix.com/en/system/files/AA-002291-PB-6-ANX7625_ProductBrief.pdf > > > > properties: > > compatible: > > @@ -112,10 +113,36 @@ properties: > > data-lanes: true > > > > port@1: > > - $ref: /schemas/graph.yaml#/properties/port > > + $ref: /schemas/graph.yaml#/properties/port-base > > I don't understand why you are changing this line. Without this change, the `unevaluatedProperties: false` in `/schemas/graph.yaml#/properties/port` does not allow me to add new properties. > > > description: > > Video port for panel or connector. > > > > + patternProperties: > > + "^endpoint@[01]$": > > + $ref: /schemas/media/video-interfaces.yaml# > > + type: object > > + unevaluatedProperties: false > > + > > + properties: > > + reg: > > + maxItems: 1 > > + > > + remote-endpoint: true > > + > > + data-lanes: > > + minItems: 1 > > + uniqueItems: true > > These are confusing... you allow only one item, so why minItems and > uniqueItems? What I want to use is something like: ``` items: enum: [0,1, 2, 3] ``` That is, all the items should be an integer between 0 and 3. I'll update this to a stricter version in v7. > > > + items: > > + - enum: [ 0, 1, 2, 3] > > + > > + mode-switch: > > + type: boolean > > + description: Register this node as a Type-C mode switch or not. > > + > > + required: > > + - reg > > + - remote-endpoint > > + > > required: > > - port@0 > > - port@1 > > @@ -186,3 +213,45 @@ examples: > > }; > > }; > > }; > > + - | > > + &i2c3 { > > + anx_bridge_dp: anx7625-dp@58 { > > Messed up indentation. I'll fix this in the next version. > > > + compatible = "analogix,anx7625 > > Node names should be generic. > https://devicetree-specification.readthedocs.io/en/latest/chapter2-devicetree-basics.html#generic-names-recommendation I'll update this in v7. > > "; > > + reg = <0x58>; > > Best regards, > Krzysztof > Best regards, Pin-yen
diff --git a/Documentation/devicetree/bindings/display/bridge/analogix,anx7625.yaml b/Documentation/devicetree/bindings/display/bridge/analogix,anx7625.yaml index 4590186c4a0b..5fdbf1f3bab8 100644 --- a/Documentation/devicetree/bindings/display/bridge/analogix,anx7625.yaml +++ b/Documentation/devicetree/bindings/display/bridge/analogix,anx7625.yaml @@ -12,7 +12,8 @@ maintainers: description: | The ANX7625 is an ultra-low power 4K Mobile HD Transmitter - designed for portable devices. + designed for portable devices. Product brief is available at + https://www.analogix.com/en/system/files/AA-002291-PB-6-ANX7625_ProductBrief.pdf properties: compatible: @@ -112,10 +113,36 @@ properties: data-lanes: true port@1: - $ref: /schemas/graph.yaml#/properties/port + $ref: /schemas/graph.yaml#/properties/port-base description: Video port for panel or connector. + patternProperties: + "^endpoint@[01]$": + $ref: /schemas/media/video-interfaces.yaml# + type: object + unevaluatedProperties: false + + properties: + reg: + maxItems: 1 + + remote-endpoint: true + + data-lanes: + minItems: 1 + uniqueItems: true + items: + - enum: [ 0, 1, 2, 3] + + mode-switch: + type: boolean + description: Register this node as a Type-C mode switch or not. + + required: + - reg + - remote-endpoint + required: - port@0 - port@1 @@ -186,3 +213,45 @@ examples: }; }; }; + - | + &i2c3 { + anx_bridge_dp: anx7625-dp@58 { + compatible = "analogix,anx7625"; + reg = <0x58>; + pinctrl-names = "default"; + pinctrl-0 = <&anx7625_dp_pins>; + enable-gpios = <&pio 176 GPIO_ACTIVE_HIGH>; + reset-gpios = <&pio 177 GPIO_ACTIVE_HIGH>; + vdd10-supply = <&pp1100_dpbrdg>; + vdd18-supply = <&pp1800_dpbrdg_dx>; + vdd33-supply = <&pp3300_dpbrdg_dx>; + analogix,audio-enable; + + ports { + #address-cells = <1>; + #size-cells = <0>; + + port@0 { + reg = <0>; + anx7625_dp_in: endpoint { + bus-type = <7>; + remote-endpoint = <&dpi_out>; + }; + }; + + port@1 { + reg = <1>; + anx_typec0: endpoint@0 { + mode-switch; + data-lanes = <0 1>; + remote-endpoint = <&typec_port0>; + }; + anx_typec1: endpoint@1 { + mode-switch; + data-lanes = <2 3>; + remote-endpoint = <&typec_port1>; + }; + }; + }; + }; + };
Analogix 7625 can be used in systems to switch the DP traffic between two downstreams, which can be USB Type-C DisplayPort alternate mode lane or regular DisplayPort output ports. Update the binding to accommodate this usage by introducing a data-lanes and a mode-switch property on endpoints. Also include the link to the product brief in the bindings. Signed-off-by: Pin-yen Lin <treapking@chromium.org> --- Changes in v6: - Remove switches node and use endpoints and data-lanes property to describe the connections. .../display/bridge/analogix,anx7625.yaml | 73 ++++++++++++++++++- 1 file changed, 71 insertions(+), 2 deletions(-)