diff options
Diffstat (limited to 'Documentation/devicetree/bindings/media/i2c/maxim,max9286.yaml')
| -rw-r--r-- | Documentation/devicetree/bindings/media/i2c/maxim,max9286.yaml | 117 |
1 files changed, 41 insertions, 76 deletions
diff --git a/Documentation/devicetree/bindings/media/i2c/maxim,max9286.yaml b/Documentation/devicetree/bindings/media/i2c/maxim,max9286.yaml index 68ee8c7d9e79..ee16102fdfe7 100644 --- a/Documentation/devicetree/bindings/media/i2c/maxim,max9286.yaml +++ b/Documentation/devicetree/bindings/media/i2c/maxim,max9286.yaml @@ -50,82 +50,62 @@ properties: '#gpio-cells': const: 2 - ports: - type: object + maxim,reverse-channel-microvolt: + minimum: 30000 + maximum: 200000 + default: 170000 description: | - The connections to the MAX9286 GMSL and its endpoint nodes are modelled - using the OF graph bindings in accordance with the video interface - bindings defined in - Documentation/devicetree/bindings/media/video-interfaces.txt. - - The following table lists the port number corresponding to each device - port. - - Port Description - ---------------------------------------- - Port 0 GMSL Input 0 - Port 1 GMSL Input 1 - Port 2 GMSL Input 2 - Port 3 GMSL Input 3 - Port 4 CSI-2 Output + Initial amplitude of the reverse control channel, in micro volts. - properties: - '#address-cells': - const: 1 + The initial amplitude shall be adjusted to a value compatible with the + configuration of the connected remote serializer. - '#size-cells': - const: 0 + Some camera modules (for example RDACM20) include an on-board MCU that + pre-programs the embedded serializer with power supply noise immunity + (high-threshold) enabled. A typical value of the deserializer's reverse + channel amplitude to communicate with pre-programmed serializers is + 170000 micro volts. - port@[0-3]: - type: object - properties: - reg: - enum: [ 0, 1, 2, 3 ] + A typical value for the reverse channel amplitude to communicate with + a remote serializer whose high-threshold noise immunity is not enabled + is 100000 micro volts - endpoint: - type: object + ports: + $ref: /schemas/graph.yaml#/properties/ports - properties: - remote-endpoint: - description: | - phandle to the remote GMSL source endpoint subnode in the - remote node port. + properties: + port@0: + $ref: /schemas/graph.yaml#/properties/port + description: GMSL Input 0 - required: - - remote-endpoint + port@1: + $ref: /schemas/graph.yaml#/properties/port + description: GMSL Input 1 - required: - - reg - - endpoint + port@2: + $ref: /schemas/graph.yaml#/properties/port + description: GMSL Input 2 - additionalProperties: false + port@3: + $ref: /schemas/graph.yaml#/properties/port + description: GMSL Input 3 port@4: - type: object - properties: - reg: - const: 4 + $ref: /schemas/graph.yaml#/$defs/port-base + unevaluatedProperties: false + description: CSI-2 Output + properties: endpoint: - type: object + $ref: /schemas/media/video-interfaces.yaml# + unevaluatedProperties: false properties: - remote-endpoint: - description: phandle to the remote CSI-2 sink endpoint. - - data-lanes: - description: array of physical CSI-2 data lane indexes. + data-lanes: true required: - - remote-endpoint - data-lanes - required: - - reg - - endpoint - - additionalProperties: false - required: - port@4 @@ -183,25 +163,8 @@ properties: requirements of the currently connected remote device. port: - type: object - - properties: - endpoint: - type: object - - properties: - remote-endpoint: - description: phandle to the MAX9286 sink endpoint. - - required: - - remote-endpoint - - additionalProperties: false - - required: - - endpoint - - additionalProperties: false + $ref: /schemas/graph.yaml#/properties/port + description: Connection to the MAX9286 sink. required: - compatible @@ -242,6 +205,8 @@ examples: gpio-controller; #gpio-cells = <2>; + maxim,reverse-channel-microvolt = <170000>; + ports { #address-cells = <1>; #size-cells = <0>; |