This patch documents Tegra VI and CSI port and endpoint nodes along
with the other required properties.
Signed-off-by: Sowjanya Komatineni <skomatineni@xxxxxxxxxx>
---
.../display/tegra/nvidia,tegra20-host1x.txt | 87 ++++++++++++++++++++++
1 file changed, 87 insertions(+)
diff --git a/Documentation/devicetree/bindings/display/tegra/nvidia,tegra20-host1x.txt b/Documentation/devicetree/bindings/display/tegra/nvidia,tegra20-host1x.txt
index 4731921..f70a838 100644
--- a/Documentation/devicetree/bindings/display/tegra/nvidia,tegra20-host1x.txt
+++ b/Documentation/devicetree/bindings/display/tegra/nvidia,tegra20-host1x.txt
@@ -65,6 +65,48 @@ of the following host1x client modules:
- power-domains: Must include sor powergate node as csicil is in
SOR partition.
+ Optional properties for csi node:
+
+ - channel nodes: Max upto 6 channels/streams are supported with each CSI
+ brick can as either x4 or x2 based on hw connectivity to sensor.
+
+ Required properties:
+ - reg: channel/stream index
+ - nvidia,mipi-calibrate: Should contain a phandle and a specifier
+ specifying which pads are used by this CSI port and need to be
+ calibrated. See also ../display/tegra/nvidia,tegra114-mipi.txt.
+
+ - port: CSI port node and its endpoint nodes as per device graph
+ bindings defined in Documentation/devicetree/bindings/graph.txt.
+ Required properties:
+ - reg: csi port index based on hw csi lanes connectivity to the
+ sensor.
+ - bus-width: number of lanes used by this port. Supported lanes
+ are 1/2/4.
+ - endpoint@0: sink node
+ Required properties:
+ - reg: endpoint id. This is used to retrieve pad for creating
+ media link
+ - remote-endpoint: phandle to sensor endpoint
+ - endpoint@1: source node
+ - reg: endpoint id. This is used to retrieve pad for creating
+ media link
+ - remote-endpoint: phandle to vi port endpoint
+
+ Optional properties for vi node:
+ - ports: Video port nodes and endpoint nodes as per device graph bindings
+ defined in Documentation/devicetree/bindings/graph.txt
+ Max 6 ports are supported and each port should have one endpoint node.
+
+ Required properties:
+ - port: VI port node and its sink endpoint node
+ Required properties:
+ - reg: should match port index
+ - endpoint@0: sink node
+ Required properties:
+ - reg: endpoint id must be 0
+ - remote-endpoint: phandle to CSI endpoint node.
+
- epp: encoder pre-processor
Required properties:
@@ -340,6 +382,22 @@ Example:
ranges = <0x0 0x0 0x54080000 0x2000>;
+ ports {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ port@0 {
+ reg = <0>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ imx219_vi_in0: endpoint@0 {
+ reg = <0>;
+ remote-endpoint = <&imx219_csi_out0>;
+ };
+ };
+ };
+
csi@838 {
compatible = "nvidia,tegra210-csi";
reg = <0x838 0x1300>;
@@ -362,6 +420,35 @@ Example:
<&tegra_car TEGRA210_CLK_CSI_TPG>;
clock-names = "csi", "cilab", "cilcd", "cile", "csi_tpg";
power-domains = <&pd_sor>;
+
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ channel@0 {
+ reg = <0>;
+ nvidia,mipi-calibrate = <&mipi 0x001>;
+
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ port@0 {
+ reg = <0>;
+ bus-width = <2>;
+
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ imx219_csi_in0: endpoint@0 {
+ reg = <0>;
+ remote-endpoint = <&imx219_out0>;
+ };
+
+ imx219_csi_out0: endpoint@1 {
+ reg = <1>;
+ remote-endpoint = <&imx219_vi_in0>;
+ };
+ };
+ };
};
};
--
2.7.4
