linux-kernel - [PATCH 2/5] dt-bindings: media: allegro-dvt: add decoder dt-bindings for Gen3 IP

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Message-Id: <20250523134207.68481-3-yassine.ouaissa@allegrodvt.com>
Date: Fri, 23 May 2025 15:41:47 +0200
From: Yassine Ouaissa <yassine.ouaissa@...egrodvt.com>
To: Mauro Carvalho Chehab <mchehab@...nel.org>,
	Rob Herring <robh@...nel.org>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>,
	Michael Tretter <m.tretter@...gutronix.de>,
	Yassine OUAISSA <yassine.ouaissa@...egrodvt.com>,
	Pengutronix Kernel Team <kernel@...gutronix.de>,
	Michal Simek <michal.simek@....com>,
	Heiko Stuebner <heiko@...ech.de>,
	Neil Armstrong <neil.armstrong@...aro.org>,
	Junhao Xie <bigfoot@...ssfun.cn>,
	Rafał Miłecki <rafal@...ecki.pl>,
	Kever Yang <kever.yang@...k-chips.com>,
	Manivannan Sadhasivam <manivannan.sadhasivam@...aro.org>,
	Hans Verkuil <hverkuil@...all.nl>,
	Christophe JAILLET <christophe.jaillet@...adoo.fr>,
	Sebastian Fricke <sebastian.fricke@...labora.com>,
	Gaosheng Cui <cuigaosheng1@...wei.com>,
	Uwe Kleine-König <u.kleine-koenig@...libre.com>,
	Joe Hattori <joe@...is.s.u-tokyo.ac.jp>,
	Wolfram Sang <wsa+renesas@...g-engineering.com>,
	Ricardo Ribalda <ribalda@...omium.org>,
	linux-media@...r.kernel.org,
	devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org
Subject: [PATCH 2/5] dt-bindings: media: allegro-dvt: add decoder dt-bindings for Gen3 IP

Add compatible for video decoder on allegrodvt Gen 3 IP.

Signed-off-by: Yassine Ouaissa <yassine.ouaissa@...egrodvt.com>
---
 .../bindings/media/allegro,al300-vdec.yaml    | 75 +++++++++++++++++++
 MAINTAINERS                                   |  1 +
 2 files changed, 76 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/media/allegro,al300-vdec.yaml

diff --git a/Documentation/devicetree/bindings/media/allegro,al300-vdec.yaml b/Documentation/devicetree/bindings/media/allegro,al300-vdec.yaml
new file mode 100644
index 000000000000..e853e7634c4f
--- /dev/null
+++ b/Documentation/devicetree/bindings/media/allegro,al300-vdec.yaml
@@ -0,0 +1,75 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/media/allegrodvt,al300-vdec.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Allegro DVT Video IP Decoder Gen 3
+
+maintainers:
+  - Yassine OUAISSA <yassine.ouaissa@...egrodvt.com>
+
+description:
+  The al300-vdec represents the latest generation of Allegro DVT IP decoding
+  technology, offering significant advancements over its predecessors.
+  This new decoder features enhanced processing capabilities with improved
+  throughput and reduced latency.
+
+  Communication between the host driver software and the MCU is implemented
+  through a specialized mailbox interface mechanism. This mailbox system
+  provides a structured channel for exchanging commands, parameters, and
+  status information between the host CPU and the MCU controlling the codec
+  engines.
+
+properties:
+  compatible:
+    const: allegro,al300-vdec
+
+  reg:
+    maxItems: 2
+    minItems: 2
+
+  reg-names:
+    items:
+      - const: regs
+      - const: apb
+
+  interrupts:
+    maxItems: 1
+
+  clocks:
+    maxItems: 1
+
+  memory-region:
+    maxItems: 1
+
+  firmware-name:
+    maxItems: 1
+
+required:
+  - compatible
+  - reg
+  - reg-names
+  - interrupts
+  - clocks
+
+additionalProperties: False
+
+examples:
+  - |
+    #include <dt-bindings/interrupt-controller/arm-gic.h>
+
+    axi {
+        #address-cells = <2>;
+        #size-cells = <2>;
+
+        video-decoder@...20000 {
+            compatible = "allegro,al300-vdec";
+            reg = <0x00 0xa0120000 0x00 0x10000>,
+                  <0x01 0x80000000 0x00 0x8000>;
+            reg-names = "regs", "apb";
+            interrupts = <GIC_SPI 96 IRQ_TYPE_LEVEL_HIGH>;
+            clocks = <&mcu_core_clk>;
+            firmware-name = "al300_vdec.fw";
+        };
+    };
diff --git a/MAINTAINERS b/MAINTAINERS
index d81d2756cb2e..e59011a36e6b 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -806,6 +806,7 @@ R:	Pengutronix Kernel Team <kernel@...gutronix.de>
 L:	linux-media@...r.kernel.org
 S:	Maintained
 F:	Documentation/devicetree/bindings/media/allegro,al5e.yaml
+F:	Documentation/devicetree/bindings/media/allegrodvt,al300-vdec.yaml
 F:	drivers/media/platform/allegro-dvt/zynqmp
 
 ALLIED VISION ALVIUM CAMERA DRIVER
-- 
2.30.2