[PATCH v10 3/6] media: dt-bindings: Add Amlogic V4L2 video decoder

[Zhentao Guo via B4 Relay <devnull+zhentao.guo.amlogic.com@kernel.org>]

From: Zhentao Guo <zhentao.guo@amlogic.com>

Add bindings for Amlogic hardware decoder accelerator.

Signed-off-by: Zhentao Guo <zhentao.guo@amlogic.com>
---
 .../devicetree/bindings/media/amlogic,s4-vdec.yaml | 114 +++++++++++++++++++++
 1 file changed, 114 insertions(+)

diff --git a/Documentation/devicetree/bindings/media/amlogic,s4-vdec.yaml b/Documentation/devicetree/bindings/media/amlogic,s4-vdec.yaml
new file mode 100644
index 000000000000..751043c3d9cc
--- /dev/null
+++ b/Documentation/devicetree/bindings/media/amlogic,s4-vdec.yaml
@@ -0,0 +1,114 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+# Copyright (C) 2025 Amlogic, Inc. All rights reserved
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/media/amlogic,s4-vdec.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Amlogic Video Decode Accelerator
+
+maintainers:
+  - Zhentao Guo <zhentao.guo@amlogic.com>
+
+description:
+  The Video Decoder Accelerator present on Amlogic SOCs.
+  It supports stateless h264 decoding.
+
+properties:
+  compatible:
+    const: amlogic,s4-vdec
+
+  reg:
+    minItems: 2
+
+  reg-names:
+    items:
+      - const: dos
+      - const: dmc
+
+  interrupts:
+    minItems: 2
+
+  interrupt-names:
+    items:
+      - const: hvdec
+      - const: vdec
+
+  clocks:
+    items:
+      - description: Clock for dos core
+      - description: Clock for vdec core
+      - description: Clock for hvdec core
+
+  clock-names:
+    items:
+      - const: dos
+      - const: vdec
+      - const: hvdec
+
+  power-domains:
+    minItems: 2
+
+  power-domain-names:
+    items:
+      - const: vdec
+      - const: hvdec
+
+  resets:
+    maxItems: 1
+
+  amlogic,canvas:
+    description: Canvas maintains an index-to-physical-address
+     mapping table that allows the 16-bit AMRISC decoder core
+     to access 32-bit or 64-bit physical address.
+    $ref: /schemas/types.yaml#/definitions/phandle
+
+  amlogic,secure-monitor:
+    description: Used to decrypt and load the signed decoder
+     firmware through ARM SMC (Secure Monitor Call).
+    $ref: /schemas/types.yaml#/definitions/phandle
+
+required:
+  - compatible
+  - reg
+  - reg-names
+  - interrupts
+  - clocks
+  - clock-names
+  - power-domains
+  - power-domain-names
+  - resets
+  - amlogic,canvas
+  - amlogic,secure-monitor
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/interrupt-controller/arm-gic.h>
+    #include <dt-bindings/clock/amlogic,s4-pll-clkc.h>
+    #include <dt-bindings/clock/amlogic,s4-peripherals-clkc.h>
+    #include <dt-bindings/power/meson-s4-power.h>
+    #include <dt-bindings/reset/amlogic,meson-s4-reset.h>
+    video-codec@fe320000 {
+      compatible = "amlogic,s4-vdec";
+      reg = <0xfe320000 0x10000>,
+            <0xfe036000 0x20>;
+      reg-names = "dos",
+                  "dmc";
+      interrupts = <GIC_SPI 91 IRQ_TYPE_EDGE_RISING>,
+                   <GIC_SPI 92 IRQ_TYPE_EDGE_RISING>;
+      clocks = <&clkc_periphs CLKID_DOS>,
+               <&clkc_periphs CLKID_VDEC_SEL>,
+               <&clkc_periphs CLKID_HEVCF_SEL>;
+      clock-names = "dos",
+                    "vdec",
+                    "hvdec";
+      power-domains = <&pwrc PWRC_S4_DOS_VDEC_ID>,
+                      <&pwrc PWRC_S4_DOS_HEVC_ID>;
+      power-domain-names = "vdec",
+                           "hvdec";
+      resets = <&reset RESET_DOS>;
+      amlogic,canvas = <&canvas>;
+      amlogic,secure-monitor = <&sm>;
+    };

-- 
2.42.0



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