Re: [PATCH v13 1/2] rcar-csi2: add Renesas R-Car MIPI CSI-2 receiver documentation
Hi Niklas,
Thank you for the patch.
On Tuesday, 13 February 2018 01:01:31 EEST Niklas Söderlund wrote:
> Documentation for Renesas R-Car MIPI CSI-2 receiver. The CSI-2 receivers
> are located between the video sources (CSI-2 transmitters) and the video
> grabbers (VIN) on Gen3 of Renesas R-Car SoC.
>
> Each CSI-2 device is connected to more than one VIN device which
> simultaneously can receive video from the same CSI-2 device. Each VIN
> device can also be connected to more than one CSI-2 device. The routing
> of which links are used is controlled by the VIN devices. There are only
> a few possible routes which are set by hardware limitations, which are
> different for each SoC in the Gen3 family.
>
> Signed-off-by: Niklas Söderlund
> Acked-by: Rob Herring
> Acked-by: Sakari Ailus
Reviewed-by: Laurent Pinchart
> ---
> .../bindings/media/renesas,rcar-csi2.txt | 99 +++
> MAINTAINERS| 1 +
> 2 files changed, 100 insertions(+)
> create mode 100644
> Documentation/devicetree/bindings/media/renesas,rcar-csi2.txt
>
> diff --git a/Documentation/devicetree/bindings/media/renesas,rcar-csi2.txt
> b/Documentation/devicetree/bindings/media/renesas,rcar-csi2.txt new file
> mode 100644
> index ..6f71f997dc48eee9
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/media/renesas,rcar-csi2.txt
> @@ -0,0 +1,99 @@
> +Renesas R-Car MIPI CSI-2
> +
> +
> +The R-Car CSI-2 receiver device provides MIPI CSI-2 capabilities for the
> +Renesas R-Car family of devices. It is used in conjunction with the
> +R-Car VIN module, which provides the video capture capabilities.
> +
> +Mandatory properties
> +
> + - compatible: Must be one or more of the following
> + - "renesas,r8a7795-csi2" for the R8A7795 device.
> + - "renesas,r8a7796-csi2" for the R8A7796 device.
> +
> + - reg: the register base and size for the device registers
> + - interrupts: the interrupt for the device
> + - clocks: reference to the parent clock
> +
> +The device node shall contain two 'port' child nodes according to the
> +bindings defined in Documentation/devicetree/bindings/media/
> +video-interfaces.txt. Port 0 shall connect to the CSI-2 source. Port 1
> +shall connect to all the R-Car VIN modules that have a hardware
> +connection to the CSI-2 receiver.
> +
> +- Port 0 - Video source (mandatory)
> + - Endpoint 0 - sub-node describing the endpoint that is the video source
> +
> +- Port 1 - VIN instances (optional)
> + - One endpoint sub-node for every R-Car VIN instance which is connected
> + to the R-Car CSI-2 receiver.
> +
> +Example:
> +
> + csi20: csi2@fea8 {
> + compatible = "renesas,r8a7796-csi2";
> + reg = <0 0xfea8 0 0x1>;
> + interrupts = <0 184 IRQ_TYPE_LEVEL_HIGH>;
> + clocks = <&cpg CPG_MOD 714>;
> + power-domains = <&sysc R8A7796_PD_ALWAYS_ON>;
> + resets = <&cpg 714>;
> +
> + ports {
> + #address-cells = <1>;
> + #size-cells = <0>;
> +
> + port@0 {
> + #address-cells = <1>;
> + #size-cells = <0>;
> +
> + reg = <0>;
> +
> + csi20_in: endpoint@0 {
> + reg = <0>;
> + clock-lanes = <0>;
> + data-lanes = <1>;
> + remote-endpoint = <&adv7482_txb>;
> + };
> + };
> +
> + port@1 {
> + #address-cells = <1>;
> + #size-cells = <0>;
> +
> + reg = <1>;
> +
> + csi20vin0: endpoint@0 {
> + reg = <0>;
> + remote-endpoint = <&vin0csi20>;
> + };
> + csi20vin1: endpoint@1 {
> + reg = <1>;
> + remote-endpoint = <&vin1csi20>;
> + };
> + csi20vin2: endpoint@2 {
> + reg = <2>;
> + remote-endpoint = <&vin2csi20>;
> + };
> + csi20vin3: endpoint@3 {
> + reg = <3>;
> + remote-endpoint = <&vin3csi20>;
> + };
> + csi20vin4: endpoint@4 {
> + reg = <4>;
> + remote-endpoint = <&vin4csi20>;
> + };
> + csi20v
[PATCH v13 1/2] rcar-csi2: add Renesas R-Car MIPI CSI-2 receiver documentation
Documentation for Renesas R-Car MIPI CSI-2 receiver. The CSI-2 receivers
are located between the video sources (CSI-2 transmitters) and the video
grabbers (VIN) on Gen3 of Renesas R-Car SoC.
Each CSI-2 device is connected to more than one VIN device which
simultaneously can receive video from the same CSI-2 device. Each VIN
device can also be connected to more than one CSI-2 device. The routing
of which links are used is controlled by the VIN devices. There are only
a few possible routes which are set by hardware limitations, which are
different for each SoC in the Gen3 family.
Signed-off-by: Niklas Söderlund
Acked-by: Rob Herring
Acked-by: Sakari Ailus
---
.../bindings/media/renesas,rcar-csi2.txt | 99 ++
MAINTAINERS| 1 +
2 files changed, 100 insertions(+)
create mode 100644
Documentation/devicetree/bindings/media/renesas,rcar-csi2.txt
diff --git a/Documentation/devicetree/bindings/media/renesas,rcar-csi2.txt
b/Documentation/devicetree/bindings/media/renesas,rcar-csi2.txt
new file mode 100644
index ..6f71f997dc48eee9
--- /dev/null
+++ b/Documentation/devicetree/bindings/media/renesas,rcar-csi2.txt
@@ -0,0 +1,99 @@
+Renesas R-Car MIPI CSI-2
+
+
+The R-Car CSI-2 receiver device provides MIPI CSI-2 capabilities for the
+Renesas R-Car family of devices. It is used in conjunction with the
+R-Car VIN module, which provides the video capture capabilities.
+
+Mandatory properties
+
+ - compatible: Must be one or more of the following
+ - "renesas,r8a7795-csi2" for the R8A7795 device.
+ - "renesas,r8a7796-csi2" for the R8A7796 device.
+
+ - reg: the register base and size for the device registers
+ - interrupts: the interrupt for the device
+ - clocks: reference to the parent clock
+
+The device node shall contain two 'port' child nodes according to the
+bindings defined in Documentation/devicetree/bindings/media/
+video-interfaces.txt. Port 0 shall connect to the CSI-2 source. Port 1
+shall connect to all the R-Car VIN modules that have a hardware
+connection to the CSI-2 receiver.
+
+- Port 0 - Video source (mandatory)
+ - Endpoint 0 - sub-node describing the endpoint that is the video source
+
+- Port 1 - VIN instances (optional)
+ - One endpoint sub-node for every R-Car VIN instance which is connected
+ to the R-Car CSI-2 receiver.
+
+Example:
+
+ csi20: csi2@fea8 {
+ compatible = "renesas,r8a7796-csi2";
+ reg = <0 0xfea8 0 0x1>;
+ interrupts = <0 184 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&cpg CPG_MOD 714>;
+ power-domains = <&sysc R8A7796_PD_ALWAYS_ON>;
+ resets = <&cpg 714>;
+
+ ports {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ port@0 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ reg = <0>;
+
+ csi20_in: endpoint@0 {
+ reg = <0>;
+ clock-lanes = <0>;
+ data-lanes = <1>;
+ remote-endpoint = <&adv7482_txb>;
+ };
+ };
+
+ port@1 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ reg = <1>;
+
+ csi20vin0: endpoint@0 {
+ reg = <0>;
+ remote-endpoint = <&vin0csi20>;
+ };
+ csi20vin1: endpoint@1 {
+ reg = <1>;
+ remote-endpoint = <&vin1csi20>;
+ };
+ csi20vin2: endpoint@2 {
+ reg = <2>;
+ remote-endpoint = <&vin2csi20>;
+ };
+ csi20vin3: endpoint@3 {
+ reg = <3>;
+ remote-endpoint = <&vin3csi20>;
+ };
+ csi20vin4: endpoint@4 {
+ reg = <4>;
+ remote-endpoint = <&vin4csi20>;
+ };
+ csi20vin5: endpoint@5 {
+ reg = <5>;
+ remote-endpoint = <&vin5csi20>;
+ };
+ csi20vin6: endpoint@6 {
+
