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Message-Id: <20251027-b4-s4-vdec-upstream-v1-1-620401813b5d@amlogic.com>
Date: Mon, 27 Oct 2025 13:42:37 +0800
From: Zhentao Guo via B4 Relay <devnull+zhentao.guo.amlogic.com@...nel.org>
To: Mauro Carvalho Chehab <mchehab@...nel.org>,
Rob Herring <robh@...nel.org>, Krzysztof Kozlowski <krzk+dt@...nel.org>,
Conor Dooley <conor+dt@...nel.org>,
Neil Armstrong <neil.armstrong@...aro.org>,
Kevin Hilman <khilman@...libre.com>, Jerome Brunet <jbrunet@...libre.com>,
Martin Blumenstingl <martin.blumenstingl@...glemail.com>
Cc: linux-media@...r.kernel.org, devicetree@...r.kernel.org,
linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
linux-amlogic@...ts.infradead.org, Zhentao Guo <zhentao.guo@...ogic.com>
Subject: [PATCH 1/3] dt-bindings: vdec: Add binding document of Amlogic
decoder accelerator
From: Zhentao Guo <zhentao.guo@...ogic.com>
Add dt-binding of the Amlogic hardware decoder accelerator.
Signed-off-by: Zhentao Guo <zhentao.guo@...ogic.com>
---
.../bindings/media/amlogic,vcodec-dec.yaml | 96 ++++++++++++++++++++++
1 file changed, 96 insertions(+)
diff --git a/Documentation/devicetree/bindings/media/amlogic,vcodec-dec.yaml b/Documentation/devicetree/bindings/media/amlogic,vcodec-dec.yaml
new file mode 100644
index 000000000000..6cea8af72639
--- /dev/null
+++ b/Documentation/devicetree/bindings/media/amlogic,vcodec-dec.yaml
@@ -0,0 +1,96 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+# Copyright (C) 2025 Amlogic, Inc. All rights reserved
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/media/amlogic,vcodec-dec.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Amlogic Video Decode Accelerator
+
+maintainers:
+ - Zhentao Guo <zhentao.guo@...ogic.com>
+
+description: |
+ The Video Decoder Accelerator present on Amlogic SOCs.
+ It supports stateless h264 decoding.
+
+properties:
+ compatible:
+ const: amlogic,s4-vcodec-dec
+
+ reg:
+ maxItems: 2
+
+ reg-names:
+ items:
+ - const: dosbus
+ - const: dmcbus
+
+ interrupts:
+ maxItems: 3
+
+ interrupt-names:
+ items:
+ - const: mailbox_0
+ - const: mailbox_1
+ - const: mailbox_2
+
+ clocks:
+ maxItems: 3
+
+ clock-names:
+ items:
+ - const: vdec
+ - const: clk_vdec_mux
+ - const: clk_hevcf_mux
+
+ power-domains:
+ maxItems: 2
+
+ power-domain-names:
+ items:
+ - const: pwrc-vdec
+ - const: pwrc-hevc
+
+required:
+ - compatible
+ - reg
+ - reg-names
+ - interrupts
+ - interrupt-names
+ - clocks
+ - clock-names
+ - power-domains
+ - power-domain-names
+
+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>
+ video-codec@...20000 {
+ compatible = "amlogic,s4-vcodec-dec";
+ reg = <0xfe320000 0x10000>,
+ <0xfe036000 0x2000>;
+ reg-names = "dosbus",
+ "dmcbus";
+ interrupts = <GIC_SPI 91 IRQ_TYPE_EDGE_RISING>,
+ <GIC_SPI 92 IRQ_TYPE_EDGE_RISING>,
+ <GIC_SPI 93 IRQ_TYPE_EDGE_RISING>;
+ interrupt-names = "mailbox_0",
+ "mailbox_1",
+ "mailbox_2";
+ clocks = <&clkc_periphs CLKID_DOS>,
+ <&clkc_periphs CLKID_VDEC_SEL>,
+ <&clkc_periphs CLKID_HEVCF_SEL>;
+ clock-names = "vdec",
+ "clk_vdec_mux",
+ "clk_hevcf_mux";
+ power-domains = <&pwrc PWRC_S4_DOS_VDEC_ID>,
+ <&pwrc PWRC_S4_DOS_HEVC_ID>;
+ power-domain-names = "pwrc-vdec",
+ "pwrc-hevc";
+ };
--
2.42.0
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