Add bindings for Synopsys DesignWare MIPI CSI-2 host. Signed-off-by: Luis Oliveira <lolivei@xxxxxxxxxxxx> [eugen.hristev@xxxxxxxxxxxxx: reworked binding, converted to yaml] Signed-off-by: Eugen Hristev <eugen.hristev@xxxxxxxxxxxxx> --- .../bindings/media/snps,dw-csi.yaml | 149 ++++++++++++++++++ 1 file changed, 149 insertions(+) create mode 100644 Documentation/devicetree/bindings/media/snps,dw-csi.yaml diff --git a/Documentation/devicetree/bindings/media/snps,dw-csi.yaml b/Documentation/devicetree/bindings/media/snps,dw-csi.yaml new file mode 100644 index 000000000000..439eadc8e517 --- /dev/null +++ b/Documentation/devicetree/bindings/media/snps,dw-csi.yaml @@ -0,0 +1,149 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/media/snps,dw-csi.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Synopsys DesignWare CSI-2 Host controller (csi2host) + +maintainers: + - Eugen Hristev <eugen.hristev@xxxxxxxxxxxxx> + +description: + CSI2HOST is used to receive image coming from an MIPI CSI-2 compatible + camera. It will convert the incoming CSI-2 stream into a dedicated + interface called the Synopsys IDI (Image Data Interface). + This interface is a 32-bit SoC internal only, and can be assimilated + with a CSI-2 interface. + +properties: + compatible: + const: snps,dw-csi + + reg: + maxItems: 1 + + clocks: + maxItems: 2 + + clock-names: + description: + CSI2HOST can have two clocks connected. One clock is the + peripheral clock for the inside functionality of the hardware block. + This is named 'perclk'. The second clock can be the phy clock, + which is used to clock the phy via an internal link. + This clock is named 'phyclk', phy clock. + items: + - const: perclk + - const: phyclk + + phys: + maxItems: 1 + description: MIPI D-PHY + + phy-names: + items: + - const: dphy + + resets: + maxItems: 1 + + interrupts: + maxItems: 1 + + ports: + $ref: /schemas/graph.yaml#/properties/ports + + properties: + port@0: + $ref: /schemas/graph.yaml#/$defs/port-base + unevaluatedProperties: false + description: + Input port node, single endpoint describing the input port. + + properties: + endpoint: + $ref: video-interfaces.yaml# + unevaluatedProperties: false + description: Endpoint connected to input device + + properties: + bus-type: + const: 4 + + data-lanes: + minItems: 1 + maxItems: 4 + items: + maximum: 4 + + clock-lanes: + maxItems: 1 + + remote-endpoint: true + + port@1: + $ref: /schemas/graph.yaml#/$defs/port-base + unevaluatedProperties: false + description: + Output port node, single endpoint describing the output port. + + properties: + endpoint: + unevaluatedProperties: false + $ref: video-interfaces.yaml# + description: Endpoint connected to output device + + properties: + bus-type: + const: 4 + + remote-endpoint: true + + required: + - port@0 + - port@1 + +additionalProperties: false + +required: + - compatible + - ports + +examples: + - | + csi2: csi2@3000 { + compatible = "snps,dw-csi"; + reg = <0x03000 0x7FF>; + phys = <&mipi_dphy_rx>; + phy-names = "dphy"; + resets = <&dw_rst 1>; + interrupts = <2>; + + ports { + #address-cells = <1>; + #size-cells = <0>; + + port@0 { + reg = <0>; + + csi_ep1: endpoint { + bus-type = <4>; /* MIPI CSI2 D-PHY */ + remote-endpoint = <&camera_1>; + data-lanes = <1 2>; + clock-lanes = <0>; + }; + }; + + port@1 { + reg = <1>; + + csi_ep2: endpoint { + remote-endpoint = <&idi_receiver>; + bus-type = <4>; + }; + }; + }; + }; + +... -- 2.25.1
