[v4,4/6] media: dt-bindings: rockchip: Document RK3399 Video Decoder bindings

Commit Message

Ezequiel Garcia Jan. 29, 2020, 7:54 p.m. UTC

From: Boris Brezillon <[e-mail]>

Document the Rockchip RK3399 Video Decoder bindings.

Signed-off-by: Boris Brezillon <[e-mail]>
Reviewed-by: Rob Herring <[e-mail]>
Signed-off-by: Ezequiel Garcia <[e-mail]>
---
v4:
* Change clock names as suggested by Laurent.
v3:
* Fix dtbs_check failures
---
 .../bindings/media/rockchip,vdec.yaml         | 71 +++++++++++++++++++
 1 file changed, 71 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/media/rockchip,vdec.yaml

Patch

diff --git a/Documentation/devicetree/bindings/media/rockchip,vdec.yaml b/Documentation/devicetree/bindings/media/rockchip,vdec.yaml
new file mode 100644
index 000000000000..eba7ead72f48
--- /dev/null
+++ b/Documentation/devicetree/bindings/media/rockchip,vdec.yaml
@@ -0,0 +1,71 @@ 
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/media/rockchip,vdec.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Rockchip Video Decoder (VDec) Device Tree Bindings
+
+maintainers:
+  - Heiko Stuebner <[e-mail]>
+
+description: |-
+  The Rockchip rk3399 has a stateless Video Decoder that can decodes H.264,
+  HEVC an VP9 streams.
+
+properties:
+  compatible:
+    const: rockchip,rk3399-vdec
+
+  reg:
+    maxItems: 1
+
+  interrupts:
+    maxItems: 1
+
+  clocks:
+    items:
+      - description: The Video Decoder AXI interface clock
+      - description: The Video Decoder AHB interface clock
+      - description: The Video Decoded CABAC clock
+      - description: The Video Decoder core clock
+
+  clock-names:
+    items:
+      - const: axi
+      - const: ahb
+      - const: cabac
+      - const: core
+
+  power-domains:
+    maxItems: 1
+
+  iommus:
+    maxItems: 1
+
+required:
+  - compatible
+  - reg
+  - interrupts
+  - clocks
+  - clock-names
+  - power-domains
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/interrupt-controller/arm-gic.h>
+
+    vdec: video-codec@ff660000 {
+        compatible = "rockchip,rk3399-vdec";
+        reg = <0x0 0xff660000 0x0 0x400>;
+        interrupts = <GIC_SPI 116 IRQ_TYPE_LEVEL_HIGH 0>;
+        clocks = <&cru ACLK_VDU>, <&cru HCLK_VDU>,
+                 <&cru SCLK_VDU_CA>, <&cru SCLK_VDU_CORE>;
+        clock-names = "aclk", "iface", "cabac", "core";
+        power-domains = <&power RK3399_PD_VDU>;
+        iommus = <&vdec_mmu>;
+    };
+
+...