Add DT binding document for Qualcomm Camera subsystem driver.
CC: Rob Herring <robh+dt@xxxxxxxxxx>
CC: devicetree@xxxxxxxxxxxxxxx
Signed-off-by: Todor Tomov <todor.tomov@xxxxxxxxxx>
---
.../devicetree/bindings/media/qcom,camss.txt | 196 +++++++++++++++++++++
1 file changed, 196 insertions(+)
create mode 100644 Documentation/devicetree/bindings/media/qcom,camss.txt
diff --git a/Documentation/devicetree/bindings/media/qcom,camss.txt b/Documentation/devicetree/bindings/media/qcom,camss.txt
new file mode 100644
index 0000000..5213b03
--- /dev/null
+++ b/Documentation/devicetree/bindings/media/qcom,camss.txt
@@ -0,0 +1,196 @@
+Qualcomm Camera Subsystem
+
+* Properties
+
+- compatible:
+ Usage: required
+ Value type: <stringlist>
+ Definition: Should contain:
+ - "qcom,msm8916-camss"
+- reg:
+ Usage: required
+ Value type: <prop-encoded-array>
+ Definition: Register ranges as listed in the reg-names property.
+- reg-names:
+ Usage: required
+ Value type: <stringlist>
+ Definition: Should contain the following entries:
+ - "csiphy0"
+ - "csiphy0_clk_mux"
+ - "csiphy1"
+ - "csiphy1_clk_mux"
+ - "csid0"
+ - "csid1"
+ - "ispif"
+ - "csi_clk_mux"
+ - "vfe0"
+- interrupts:
+ Usage: required
+ Value type: <prop-encoded-array>
+ Definition: Interrupts as listed in the interrupt-names property.
+- interrupt-names:
+ Usage: required
+ Value type: <stringlist>
+ Definition: Should contain the following entries:
+ - "csiphy0"
+ - "csiphy1"
+ - "csid0"
+ - "csid1"
+ - "ispif"
+ - "vfe0"
+- power-domains:
+ Usage: required
+ Value type: <prop-encoded-array>
+ Definition: A phandle and power domain specifier pairs to the
+ power domain which is responsible for collapsing
+ and restoring power to the peripheral.
+- clocks:
+ Usage: required
+ Value type: <prop-encoded-array>
+ Definition: A list of phandle and clock specifier pairs as listed
+ in clock-names property.
+- clock-names:
+ Usage: required
+ Value type: <stringlist>
+ Definition: Should contain the following entries:
+ - "camss_top_ahb_clk"
+ - "ispif_ahb_clk"
+ - "csiphy0_timer_clk"
+ - "csiphy1_timer_clk"
+ - "csi0_ahb_clk"
+ - "csi0_clk"
+ - "csi0_phy_clk"
+ - "csi0_pix_clk"
+ - "csi0_rdi_clk"
+ - "csi1_ahb_clk"
+ - "csi1_clk"
+ - "csi1_phy_clk"
+ - "csi1_pix_clk"
+ - "csi1_rdi_clk"
+ - "camss_ahb_clk"
+ - "camss_vfe_vfe_clk"
+ - "camss_csi_vfe_clk"
+ - "iface_clk"
+ - "bus_clk"
+- vdda-supply:
+ Usage: required
+ Value type: <phandle>
+ Definition: A phandle to voltage supply for CSI2.
+- iommus:
+ Usage: required
+ Value type: <prop-encoded-array>
+ Definition: A list of phandle and IOMMU specifier pairs.
+
+* Nodes
+
+- ports:
+ Usage: required
+ Definition: As described in video-interfaces.txt in same directory.
+ Properties:
+ - reg:
+ Usage: required
+ Value type: <u32>
+ Definition: Selects CSI2 PHY interface - PHY0 or PHY1.
+ Endpoint node properties:
+ - clock-lanes:
+ Usage: required
+ Value type: <u32>
+ Definition: The clock lane.
+ - data-lanes:
+ Usage: required
+ Value type: <prop-encoded-array>
+ Definition: An array of data lanes.
+ - qcom,settle-cnt:
+ Usage: required
+ Value type: <u32>
+ Definition: The settle count parameter for CSI PHY.
+
+* An Example
+
+ camss: camss@1b00000 {
+ compatible = "qcom,msm8916-camss";
+ reg = <0x1b0ac00 0x200>,
+ <0x1b00030 0x4>,
+ <0x1b0b000 0x200>,
+ <0x1b00038 0x4>,
+ <0x1b08000 0x100>,
+ <0x1b08400 0x100>,
+ <0x1b0a000 0x500>,
+ <0x1b00020 0x10>,
+ <0x1b10000 0x1000>;
+ reg-names = "csiphy0",
+ "csiphy0_clk_mux",
+ "csiphy1",
+ "csiphy1_clk_mux",
+ "csid0",
+ "csid1",
+ "ispif",
+ "csi_clk_mux",
+ "vfe0";
+ interrupts = <GIC_SPI 78 0>,
+ <GIC_SPI 79 0>,
+ <GIC_SPI 51 0>,
+ <GIC_SPI 52 0>,
+ <GIC_SPI 55 0>,
+ <GIC_SPI 57 0>;
+ interrupt-names = "csiphy0",
+ "csiphy1",
+ "csid0",
+ "csid1",
+ "ispif",
+ "vfe0";
+ power-domains = <&gcc VFE_GDSC>;
+ clocks = <&gcc GCC_CAMSS_TOP_AHB_CLK>,
+ <&gcc GCC_CAMSS_ISPIF_AHB_CLK>,
+ <&gcc GCC_CAMSS_CSI0PHYTIMER_CLK>,
+ <&gcc GCC_CAMSS_CSI1PHYTIMER_CLK>,
+ <&gcc GCC_CAMSS_CSI0_AHB_CLK>,
+ <&gcc GCC_CAMSS_CSI0_CLK>,
+ <&gcc GCC_CAMSS_CSI0PHY_CLK>,
+ <&gcc GCC_CAMSS_CSI0PIX_CLK>,
+ <&gcc GCC_CAMSS_CSI0RDI_CLK>,
+ <&gcc GCC_CAMSS_CSI1_AHB_CLK>,
+ <&gcc GCC_CAMSS_CSI1_CLK>,
+ <&gcc GCC_CAMSS_CSI1PHY_CLK>,
+ <&gcc GCC_CAMSS_CSI1PIX_CLK>,
+ <&gcc GCC_CAMSS_CSI1RDI_CLK>,
+ <&gcc GCC_CAMSS_AHB_CLK>,
+ <&gcc GCC_CAMSS_VFE0_CLK>,
+ <&gcc GCC_CAMSS_CSI_VFE0_CLK>,
+ <&gcc GCC_CAMSS_VFE_AHB_CLK>,
+ <&gcc GCC_CAMSS_VFE_AXI_CLK>;
+ clock-names = "camss_top_ahb_clk",
+ "ispif_ahb_clk",
+ "csiphy0_timer_clk",
+ "csiphy1_timer_clk",
+ "csi0_ahb_clk",
+ "csi0_clk",
+ "csi0_phy_clk",
+ "csi0_pix_clk",
+ "csi0_rdi_clk",
+ "csi1_ahb_clk",
+ "csi1_clk",
+ "csi1_phy_clk",
+ "csi1_pix_clk",
+ "csi1_rdi_clk",
+ "camss_ahb_clk",
+ "camss_vfe_vfe_clk",
+ "camss_csi_vfe_clk",
+ "iface_clk",
+ "bus_clk";
+ vdda-supply = <&pm8916_l2>;
+ iommus = <&apps_iommu 3>;
+ ports {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ port@0 {
+ reg = <0>;
+ csiphy0_ep: endpoint {
+ clock-lanes = <1>;
+ data-lanes = <0 2>;
+ qcom,settle-cnt = <0xe>;
+ remote-endpoint = <&ov5645_ep>;
+ };
+ };
+ };
+ };
--
1.9.1
