[PATCH v4 12/15] dt-bindings: media: Add A83T MIPI CSI-2 bindings documentation

From: Paul Kocialkowski
Date: Thu Dec 31 2020 - 09:31:49 EST


This introduces YAML bindings documentation for the A83T MIPI CSI-2
controller.

Signed-off-by: Paul Kocialkowski <paul.kocialkowski@xxxxxxxxxxx>
Reviewed-by: Rob Herring <robh@xxxxxxxxxx>
---
.../media/allwinner,sun8i-a83t-mipi-csi2.yaml | 147 ++++++++++++++++++
1 file changed, 147 insertions(+)
create mode 100644 Documentation/devicetree/bindings/media/allwinner,sun8i-a83t-mipi-csi2.yaml

diff --git a/Documentation/devicetree/bindings/media/allwinner,sun8i-a83t-mipi-csi2.yaml b/Documentation/devicetree/bindings/media/allwinner,sun8i-a83t-mipi-csi2.yaml
new file mode 100644
index 000000000000..e607fae7d85e
--- /dev/null
+++ b/Documentation/devicetree/bindings/media/allwinner,sun8i-a83t-mipi-csi2.yaml
@@ -0,0 +1,147 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/media/allwinner,sun8i-a83t-mipi-csi2.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Allwinner A83T MIPI CSI-2 Device Tree Bindings
+
+maintainers:
+ - Paul Kocialkowski <paul.kocialkowski@xxxxxxxxxxx>
+
+properties:
+ compatible:
+ const: allwinner,sun8i-a83t-mipi-csi2
+
+ reg:
+ maxItems: 1
+
+ interrupts:
+ maxItems: 1
+
+ clocks:
+ items:
+ - description: Bus Clock
+ - description: Module Clock
+ - description: MIPI-specific Clock
+ - description: Misc CSI Clock
+
+ clock-names:
+ items:
+ - const: bus
+ - const: mod
+ - const: mipi
+ - const: misc
+
+ resets:
+ maxItems: 1
+
+ # See ./video-interfaces.txt for details
+ ports:
+ type: object
+
+ properties:
+ port@0:
+ type: object
+ description: Input port, connect to a MIPI CSI-2 sensor
+
+ properties:
+ reg:
+ const: 0
+
+ endpoint:
+ type: object
+
+ properties:
+ remote-endpoint: true
+
+ clock-lanes:
+ maxItems: 1
+
+ data-lanes:
+ minItems: 1
+ maxItems: 4
+
+ required:
+ - data-lanes
+ - remote-endpoint
+
+ required:
+ - endpoint
+
+ additionalProperties: false
+
+ port@1:
+ type: object
+ description: Output port, connect to a CSI controller
+
+ properties:
+ reg:
+ const: 1
+
+ endpoint:
+ type: object
+
+ properties:
+ remote-endpoint: true
+
+ required:
+ - remote-endpoint
+
+ required:
+ - endpoint
+
+ additionalProperties: false
+
+required:
+ - compatible
+ - reg
+ - interrupts
+ - clocks
+ - clock-names
+ - resets
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/interrupt-controller/arm-gic.h>
+ #include <dt-bindings/clock/sun8i-a83t-ccu.h>
+ #include <dt-bindings/reset/sun8i-a83t-ccu.h>
+
+ mipi_csi2: csi@1cb1000 {
+ compatible = "allwinner,sun8i-a83t-mipi-csi2";
+ reg = <0x01cb1000 0x1000>;
+ interrupts = <GIC_SPI 83 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&ccu CLK_BUS_CSI>,
+ <&ccu CLK_CSI_SCLK>,
+ <&ccu CLK_MIPI_CSI>,
+ <&ccu CLK_CSI_MISC>;
+ clock-names = "bus", "mod", "mipi", "misc";
+ resets = <&ccu RST_BUS_CSI>;
+
+ ports {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ mipi_csi2_in: port@0 {
+ reg = <0>;
+
+ mipi_csi2_in_ov8865: endpoint {
+ data-lanes = <1 2 3 4>;
+
+ remote-endpoint = <&ov8865_out_mipi_csi2>;
+ };
+ };
+
+ mipi_csi2_out: port@1 {
+ reg = <1>;
+
+ mipi_csi2_out_csi: endpoint {
+ remote-endpoint = <&csi_in_mipi_csi2>;
+ };
+ };
+ };
+ };
+
+...
--
2.29.2