[PATCH v9 1/3] media: dt-bindings: media: add bindings for Rockchip CIF

Mehdi Djait
2023-10-30T12:25:26Z

Add a documentation for the Rockchip Camera Interface
binding.

Signed-off-by: Mehdi Djait <mehdi.djait@bootlin.com>
---
v8=>v9:
dropped the "Reviewed-by: Rob Herring <robh@kernel.org>"
because of the following changes:
- changed the compatible to rk3066-cif: rk3066 is the earliest Rockchip SoC
that uses cif and it is the first model starting the RK30 lineup.
- adjusted the description
- changed the node name to video-capture

.../bindings/media/rockchip,rk3066-cif.yaml | 96 +++++++++++++++++++
1 file changed, 96 insertions(+)
create mode 100644 Documentation/devicetree/bindings/media/rockchip,rk3066-cif.yaml

diff --git a/Documentation/devicetree/bindings/media/rockchip,rk3066-cif.yaml b/Documentation/devicetree/bindings/media/rockchip,rk3066-cif.yaml
new file mode 100644
index 000000000000..be69e474ed26
--- /dev/null
+++ b/Documentation/devicetree/bindings/media/rockchip,rk3066-cif.yaml
@@ -0,0 +1,96 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/media/rockchip,rk3066-cif.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Rockchip CIF Camera Interface
+
+maintainers:
+ - Mehdi Djait <mehdi.djait@bootlin.com>
+
+description: |
+ CIF is a camera interface present on some rockchip SoCs. It
+ receives the data from Camera sensor or CCIR656 encoder and
+ transfers it into system main memory by AXI bus.
+
+properties:
+ compatible:
+ enum:
+ - rockchip,rk3066-cif
+ - rockchip,px30-vip
+
+ reg:
+ maxItems: 1
+
+ interrupts:
+ maxItems: 1
+
+ clocks:
+ items:
+ - description: ACLK
+ - description: HCLK
+ - description: PCLK
+
+ clock-names:
+ items:
+ - const: aclk
+ - const: hclk
+ - const: pclk
+
+ resets:
+ items:
+ - description: AXI
+ - description: AHB
+ - description: PCLK IN
+
+ reset-names:
+ items:
+ - const: axi
+ - const: ahb
+ - const: pclkin
+
+ power-domains:
+ maxItems: 1
+
+ port:
+ $ref: /schemas/graph.yaml#/properties/port
+ description: A connection to a sensor or decoder
+
+required:
+ - compatible
+ - reg
+ - interrupts
+ - clocks
+ - port
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/interrupt-controller/arm-gic.h>
+ #include <dt-bindings/clock/px30-cru.h>
+ #include <dt-bindings/power/px30-power.h>
+
+ parent {
+ #address-cells = <2>;
+ #size-cells = <2>;
+
+ video-capture@ff490000 {
+ compatible = "rockchip,px30-vip";
+ reg = <0x0 0xff490000 0x0 0x200>;
+ interrupts = <GIC_SPI 69 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&cru ACLK_CIF>, <&cru HCLK_CIF>, <&cru PCLK_CIF>;
+ clock-names = "aclk", "hclk", "pclk";
+ resets = <&cru SRST_CIF_A>, <&cru SRST_CIF_H>, <&cru SRST_CIF_PCLKIN>;
+ reset-names = "axi", "ahb", "pclkin";
+ power-domains = <&power PX30_PD_VI>;
+
+ port {
+ endpoint {
+ remote-endpoint = <&tw9900_out>;
+ };
+ };
+ };
+ };
+...
--
2.41.0