Re: [PATCH v2 3/5] media: dt-bindings: media: Add binding for the Raspberry Pi HEVC decoder
From: Rob Herring <robh@kernel.org>
Date: 2025-02-11 22:20:52
Also in:
linux-devicetree, linux-media, lkml
On Thu, Feb 06, 2025 at 06:02:36PM +0000, Dave Stevenson wrote:
quoted hunk ↗ jump to hunk
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@raspberrypi.com> --- .../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@raspberrypi.com> + - Dom Cobley <dom@raspberrypi.com> + - Dave Stevenson <dave.stevenson@raspberrypi.com> + - Raspberry Pi internal review list <kernel-list@raspberrypi.com> + +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
SoC specific compatible please. If they are 'the same' then 2712 can fallback to 2711.
+
+ 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