Add Marvell MMP2 camera host interface.
Signed-off-by: Lubomir Rintel <lkundrak@xxxxx>
---
Changes since v4:
- s/Nust/Must/
- Documented required endpoint properties; bus-type, hsync-active,
vsync-active and pclk-sample.
Changes since v3:
- Dropped the video-interfaces.txt reference
- Clarify "clocks", "clock-names" and "clock-output-names" descriptions
- Refer to other documentation by full path
Changes since v2:
- Added #clock-cells, clock-names, port
.../bindings/media/marvell,mmp2-ccic.txt | 50 +++++++++++++++++++
1 file changed, 50 insertions(+)
create mode 100644 Documentation/devicetree/bindings/media/marvell,mmp2-ccic.txt
diff --git a/Documentation/devicetree/bindings/media/marvell,mmp2-ccic.txt b/Documentation/devicetree/bindings/media/marvell,mmp2-ccic.txt
new file mode 100644
index 0000000000000..7ec2c8c8a3b98
--- /dev/null
+++ b/Documentation/devicetree/bindings/media/marvell,mmp2-ccic.txt
@@ -0,0 +1,50 @@
+Marvell MMP2 camera host interface
+
+Required properties:
+ - compatible: Should be "marvell,mmp2-ccic".
+ - reg: Register base and size.
+ - interrupts: The interrupt number.
+ - #clock-cells: Must be 0.
+
+Optional properties:
+ - clocks: Reference to the input clock as specified by
+ Documentation/devicetree/bindings/clock/clock-bindings.txt.
+ - clock-names: Names of the clocks used; "axi" for the AXI bus interface,
+ "func" for the peripheral clock and "phy" for the parallel
+ video bus interface.
+ - clock-output-names: Optional clock source for sensors. Shall be "mclk".
+
+Required subnodes:
+ - port: The parallel bus interface port with a single endpoint linked to
+ the sensor's endpoint as described in
+ Documentation/devicetree/bindings/media/video-interfaces.txt.
+
+Required endpoint properties:
+ - bus-type: data bus type, <5> or <6> for Parallel or Bt.656 respectively
+ - pclk-sample: pixel clock polarity
+ - hsync-active: horizontal synchronization polarity (only required for
+ parallel bus)
+ - vsync-active: vertical synchronization polarity (only required for
+ parallel bus)
+
+Example:
+
+ camera0: camera@d420a000 {
+ compatible = "marvell,mmp2-ccic";
+ reg = <0xd420a000 0x800>;
+ interrupts = <42>;
+ clocks = <&soc_clocks MMP2_CLK_CCIC0>;
+ clock-names = "axi";
+ #clock-cells = <0>;
+ clock-output-names = "mclk";
+
+ port {
+ camera0_0: endpoint {
+ remote-endpoint = <&ov7670_0>;
+ bus-type = <5>; /* Parallel */
+ hsync-active = <1>; /* Active high */
+ vsync-active = <1>; /* Active high */
+ pclk-sample = <0>; /* Falling */
+ };
+ };
+ };
--
2.21.0
