linux-kernel - [PATCH v2 2/5] dt-bindings: media: Add dt-bindings for NPCM Video Capture/Encode Engine

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Message-Id: <20220513033450.7038-3-kflin@nuvoton.com>
Date:   Fri, 13 May 2022 11:34:47 +0800
From:   Marvin Lin <milkfafa@...il.com>
To:     mchehab@...nel.org, linux-media@...r.kernel.org,
        linux-kernel@...r.kernel.org
Cc:     openbmc@...ts.ozlabs.org, avifishman70@...il.com,
        tmaimon77@...il.com, tali.perry1@...il.com, kwliu@...oton.com,
        kflin@...oton.com
Subject: [PATCH v2 2/5] dt-bindings: media: Add dt-bindings for NPCM Video Capture/Encode Engine

Add dt-bindings document for NPCM Video Capture/Encode Engine.

Signed-off-by: Marvin Lin <kflin@...oton.com>
---
 .../bindings/media/nuvoton,npcm-video.yaml    | 87 +++++++++++++++++++
 1 file changed, 87 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/media/nuvoton,npcm-video.yaml

diff --git a/Documentation/devicetree/bindings/media/nuvoton,npcm-video.yaml b/Documentation/devicetree/bindings/media/nuvoton,npcm-video.yaml
new file mode 100644
index 000000000000..b5be7ef09038
--- /dev/null
+++ b/Documentation/devicetree/bindings/media/nuvoton,npcm-video.yaml
@@ -0,0 +1,87 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/media/nuvoton,npcm-video.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Nuvoton NPCM Video Capture/Encode Engine Device Tree Bindings
+
+maintainers:
+  - Joseph Liu <kwliu@...oton.com>
+  - Marvin Lin <kflin@...oton.com>
+
+description: |
+  Video Capture/Differentiation Engine (VCD) and Encoding Compression Engine
+  (ECE) present on Nuvoton NPCM SoCs.
+
+properties:
+  compatible:
+    enum:
+      - nuvoton,npcm750-video
+      - nuvoton,npcm845-video
+
+  reg:
+    items:
+      - description: VCD registers
+      - description: ECE registers
+
+  reg-names:
+    items:
+      - const: vcd
+      - const: ece
+
+  interrupts:
+    maxItems: 1
+
+  resets:
+    items:
+      - description: VCD reset control
+      - description: ECE reset control
+
+  reset-names:
+    items:
+      - const: vcd
+      - const: ece
+
+  nuvoton,syscon-gcr:
+    $ref: /schemas/types.yaml#definitions/phandle
+    description: Phandle to the Global Control Register DT node
+
+  nuvoton,syscon-gfxi:
+    $ref: /schemas/types.yaml#definitions/phandle
+    description: Phandle to the Graphics Core Information DT node
+
+  memory-region:
+    description:
+      CMA pool to use for buffers allocation instead of the default CMA pool.
+
+required:
+  - compatible
+  - reg
+  - reg-names
+  - interrupts
+  - resets
+  - reset-names
+  - nuvoton,syscon-gcr
+  - nuvoton,syscon-gfxi
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/interrupt-controller/arm-gic.h>
+    #include <dt-bindings/reset/nuvoton,npcm7xx-reset.h>
+
+    video: video@...10000 {
+        compatible = "nuvoton,npcm750-video";
+        reg = <0xf0810000 0x10000>,
+              <0xf0820000 0x2000>;
+        reg-names = "vcd", "ece";
+        interrupts = <GIC_SPI 22 IRQ_TYPE_LEVEL_HIGH>;
+        resets = <&rstc NPCM7XX_RESET_IPSRST2 NPCM7XX_RESET_VCD>,
+                 <&rstc NPCM7XX_RESET_IPSRST2 NPCM7XX_RESET_ECE>;
+        reset-names = "vcd", "ece";
+        nuvoton,syscon-gcr = <&gcr>;
+        nuvoton,syscon-gfxi = <&gfxi>;
+    };
-- 
2.17.1