[PATCH v2 3/5] media: dt-bindings: media: Add binding for the Raspberry Pi HEVC decoder
From: Dave Stevenson
Date: Thu Feb 06 2025 - 13:04:30 EST
Adds a binding for the HEVC decoder found on the BCM2711 / Raspberry Pi 4,
and BCM2712 / Raspberry Pi 5.
Signed-off-by: Dave Stevenson <dave.stevenson@xxxxxxxxxxxxxxx>
---
.../bindings/media/raspberrypi,hevc-dec.yaml | 67 ++++++++++++++++++++++
1 file changed, 67 insertions(+)
diff --git a/Documentation/devicetree/bindings/media/raspberrypi,hevc-dec.yaml b/Documentation/devicetree/bindings/media/raspberrypi,hevc-dec.yaml
new file mode 100644
index 000000000000..06db7004c765
--- /dev/null
+++ b/Documentation/devicetree/bindings/media/raspberrypi,hevc-dec.yaml
@@ -0,0 +1,67 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/media/raspberrypi,hevc-dec.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Raspberry Pi HEVC Decoder
+
+maintainers:
+ - John Cox <john.cox@xxxxxxxxxxxxxxx>
+ - Dom Cobley <dom@xxxxxxxxxxxxxxx>
+ - Dave Stevenson <dave.stevenson@xxxxxxxxxxxxxxx>
+ - Raspberry Pi internal review list <kernel-list@xxxxxxxxxxxxxxx>
+
+description:
+ The Raspberry Pi HEVC decoder is a hardware video decode accelerator block
+ found in the BCM2711 and BCM2712 processors used on Raspberry Pi 4 and 5
+ boards respectively.
+
+properties:
+ compatible:
+ enum:
+ - raspberrypi,hevc-dec
+
+ reg:
+ items:
+ - description: The HEVC main register region
+ - description: The Interrupt control register region
+
+ reg-names:
+ items:
+ - const: hevc
+ - const: intc
+
+ interrupts:
+ maxItems: 1
+
+ clocks:
+ items:
+ - description: The HEVC block clock
+
+required:
+ - compatible
+ - reg
+ - reg-names
+ - interrupts
+ - clocks
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/interrupt-controller/arm-gic.h>
+
+ video-codec@7eb10000 {
+ compatible = "raspberrypi,hevc-dec";
+ reg = <0x7eb00000 0x10000>, /* HEVC */
+ <0x7eb10000 0x1000>; /* INTC */
+ reg-names = "hevc",
+ "intc";
+
+ interrupts = <GIC_SPI 98 IRQ_TYPE_LEVEL_HIGH>;
+
+ clocks = <&clk 0>;
+ };
+
+...
--
2.34.1