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ffaebccdde
The resets property will become mandatory to operate the device, list it as such. All device tree source files have always included the reset property so making it mandatory will not introduce any regressions. While at it improve the description for the clocks property. Signed-off-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Rob Herring <robh@kernel.org> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
107 lines
2.8 KiB
Plaintext
107 lines
2.8 KiB
Plaintext
Renesas R-Car MIPI CSI-2
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------------------------
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The R-Car CSI-2 receiver device provides MIPI CSI-2 capabilities for the
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Renesas R-Car and RZ/G2 family of devices. It is used in conjunction with the
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R-Car VIN module, which provides the video capture capabilities.
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Mandatory properties
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--------------------
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- compatible: Must be one or more of the following
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- "renesas,r8a774a1-csi2" for the R8A774A1 device.
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- "renesas,r8a774c0-csi2" for the R8A774C0 device.
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- "renesas,r8a7795-csi2" for the R8A7795 device.
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- "renesas,r8a7796-csi2" for the R8A7796 device.
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- "renesas,r8a77965-csi2" for the R8A77965 device.
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- "renesas,r8a77970-csi2" for the R8A77970 device.
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- "renesas,r8a77980-csi2" for the R8A77980 device.
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- "renesas,r8a77990-csi2" for the R8A77990 device.
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- reg: the register base and size for the device registers
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- interrupts: the interrupt for the device
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- clocks: A phandle + clock specifier for the module clock
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- resets: A phandle + reset specifier for the module reset
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The device node shall contain two 'port' child nodes according to the
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bindings defined in Documentation/devicetree/bindings/media/
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video-interfaces.txt. port@0 shall connect to the CSI-2 source. port@1
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shall connect to all the R-Car VIN modules that have a hardware
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connection to the CSI-2 receiver.
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- port@0- Video source (mandatory)
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- endpoint@0 - sub-node describing the endpoint that is the video source
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- port@1 - VIN instances (optional)
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- One endpoint sub-node for every R-Car VIN instance which is connected
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to the R-Car CSI-2 receiver.
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Example:
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csi20: csi2@fea80000 {
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compatible = "renesas,r8a7796-csi2";
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reg = <0 0xfea80000 0 0x10000>;
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interrupts = <0 184 IRQ_TYPE_LEVEL_HIGH>;
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clocks = <&cpg CPG_MOD 714>;
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power-domains = <&sysc R8A7796_PD_ALWAYS_ON>;
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resets = <&cpg 714>;
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ports {
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#address-cells = <1>;
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#size-cells = <0>;
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port@0 {
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#address-cells = <1>;
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#size-cells = <0>;
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reg = <0>;
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csi20_in: endpoint@0 {
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reg = <0>;
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clock-lanes = <0>;
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data-lanes = <1>;
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remote-endpoint = <&adv7482_txb>;
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};
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};
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port@1 {
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#address-cells = <1>;
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#size-cells = <0>;
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reg = <1>;
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csi20vin0: endpoint@0 {
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reg = <0>;
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remote-endpoint = <&vin0csi20>;
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};
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csi20vin1: endpoint@1 {
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reg = <1>;
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remote-endpoint = <&vin1csi20>;
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};
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csi20vin2: endpoint@2 {
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reg = <2>;
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remote-endpoint = <&vin2csi20>;
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};
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csi20vin3: endpoint@3 {
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reg = <3>;
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remote-endpoint = <&vin3csi20>;
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};
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csi20vin4: endpoint@4 {
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reg = <4>;
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remote-endpoint = <&vin4csi20>;
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};
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csi20vin5: endpoint@5 {
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reg = <5>;
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remote-endpoint = <&vin5csi20>;
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};
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csi20vin6: endpoint@6 {
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reg = <6>;
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remote-endpoint = <&vin6csi20>;
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};
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csi20vin7: endpoint@7 {
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reg = <7>;
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remote-endpoint = <&vin7csi20>;
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};
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};
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};
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};
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