From: Conor Dooley <conor@kernel.org>
To: Tomi Valkeinen <tomi.valkeinen+renesas@ideasonboard.com>
Cc: Geert Uytterhoeven <geert+renesas@glider.be>,
Michael Turquette <mturquette@baylibre.com>,
Stephen Boyd <sboyd@kernel.org>,
Andrzej Hajda <andrzej.hajda@intel.com>,
Neil Armstrong <neil.armstrong@linaro.org>,
Robert Foss <rfoss@kernel.org>,
Laurent Pinchart <Laurent.pinchart@ideasonboard.com>,
Jonas Karlman <jonas@kwiboo.se>,
Jernej Skrabec <jernej.skrabec@gmail.com>,
Maarten Lankhorst <maarten.lankhorst@linux.intel.com>,
Maxime Ripard <mripard@kernel.org>,
Thomas Zimmermann <tzimmermann@suse.de>,
David Airlie <airlied@gmail.com>, Simona Vetter <simona@ffwll.ch>,
Rob Herring <robh@kernel.org>,
Krzysztof Kozlowski <krzk+dt@kernel.org>,
Conor Dooley <conor+dt@kernel.org>,
Magnus Damm <magnus.damm@gmail.com>,
Marek Vasut <marek.vasut+renesas@mailbox.org>,
Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>,
Kieran Bingham <kieran.bingham+renesas@ideasonboard.com>,
Philipp Zabel <p.zabel@pengutronix.de>,
linux-renesas-soc@vger.kernel.org, linux-clk@vger.kernel.org,
linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org,
devicetree@vger.kernel.org
Subject: Re: [PATCH v2 2/5] dt-bindings: display: bridge: Document Renesas R-Car V4H DSC bindings
Date: Fri, 15 May 2026 18:32:27 +0100 [thread overview]
Message-ID: <20260515-fraying-trickle-7511a2eeaf44@spud> (raw)
In-Reply-To: <20260515-rcar-du-dsc-v2-2-f6b9240a1240@ideasonboard.com>
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On Fri, May 15, 2026 at 10:56:15AM +0300, Tomi Valkeinen wrote:
> From: Marek Vasut <marek.vasut+renesas@mailbox.org>
>
> The Renesas DSC Display Stream Compression is a bridge embedded in the
> Renesas R-Car V4H SoC. The bridge performs VESA DSC encoding of up to
> 8k or 400 Mpixel/s .
>
> Signed-off-by: Marek Vasut <marek.vasut+renesas@mailbox.org>
> [tomi.valkeinen: fix the example]
> Signed-off-by: Tomi Valkeinen <tomi.valkeinen+renesas@ideasonboard.com>
> ---
> .../bindings/display/bridge/renesas,dsc.yaml | 96 ++++++++++++++++++++++
> 1 file changed, 96 insertions(+)
>
> diff --git a/Documentation/devicetree/bindings/display/bridge/renesas,dsc.yaml b/Documentation/devicetree/bindings/display/bridge/renesas,dsc.yaml
> new file mode 100644
> index 000000000000..2918d592732b
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/display/bridge/renesas,dsc.yaml
Filename matching the compatible please.
pw-bot: changes-requested
> @@ -0,0 +1,96 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/display/bridge/renesas,dsc.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Renesas R-Car DSC Display Stream Compression
> +
> +maintainers:
> + - Marek Vasut <marek.vasut+renesas@mailbox.org>
> +
> +description: |
> + This binding describes the VESA DSC Display Stream Compression encoder
> + embedded in the Renesas R-Car V4H SoC. The encoder supports all DSC1.1
> + encoding mechanisms, configurable bits-per-pixel, resolution up to 8k.
> +
> +properties:
> + compatible:
> + const: renesas,r8a779g0-dsc
> +
> + reg:
> + maxItems: 1
> +
> + clocks:
> + maxItems: 1
> +
> + interrupts:
> + maxItems: 1
> +
> + power-domains:
> + maxItems: 1
> +
> + resets:
> + maxItems: 1
> +
> + ports:
> + $ref: /schemas/graph.yaml#/properties/ports
> +
> + properties:
> + port@0:
> + $ref: /schemas/graph.yaml#/properties/port
> + description: R-Car DU input port
> +
> + port@1:
> + $ref: /schemas/graph.yaml#/properties/port
> + description: R-Car DSI output port
> +
> + required:
> + - port@0
> + - port@1
> +
> +required:
> + - compatible
> + - reg
> + - clocks
> + - interrupts
> + - power-domains
> + - resets
> + - ports
> +
> +unevaluatedProperties: false
> +
> +examples:
> + - |
> + #include <dt-bindings/clock/r8a779g0-cpg-mssr.h>
> + #include <dt-bindings/interrupt-controller/arm-gic.h>
> + #include <dt-bindings/power/r8a779g0-sysc.h>
> +
> + dsc@feb8d000 {
Speaking of fixing the example, should this not be "decoder" or
"bridge"?
Not a big deal though.
With the changed filename
Acked-by: Conor Dooley <conor.dooley@microchip.com>
Cheers,
Conor.
> + compatible = "renesas,r8a779g0-dsc";
> + reg = <0xfeb8d000 0x400>;
> + interrupts = <GIC_SPI 559 IRQ_TYPE_LEVEL_HIGH>;
> + clocks = <&cpg CPG_MOD 2819>;
> + power-domains = <&sysc R8A779G0_PD_ALWAYS_ON>;
> + resets = <&cpg 2819>;
> +
> + ports {
> + #address-cells = <1>;
> + #size-cells = <0>;
> +
> + port@0 {
> + reg = <0>;
> + dsc_in_dsi1: endpoint {
> + remote-endpoint = <&du_out_dsi1>;
> + };
> + };
> +
> + port@1 {
> + reg = <1>;
> + dsc_out_dsi1: endpoint {
> + remote-endpoint = <&dsi1_in>;
> + };
> + };
> + };
> + };
> +...
>
> --
> 2.43.0
>
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next prev parent reply other threads:[~2026-05-15 17:32 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-05-15 7:56 [PATCH v2 0/5] drm/rcar-du: Add support for DSI pipelines with DSC Tomi Valkeinen
2026-05-15 7:56 ` [PATCH v2 1/5] clk: renesas: r8a779g0: Add DSC clock Tomi Valkeinen
2026-05-15 7:56 ` [PATCH v2 2/5] dt-bindings: display: bridge: Document Renesas R-Car V4H DSC bindings Tomi Valkeinen
2026-05-15 17:32 ` Conor Dooley [this message]
2026-05-15 7:56 ` [PATCH v2 3/5] drm/rcar-du: dsc: Add rudimentary Renesas R-Car V4H DSC driver Tomi Valkeinen
2026-05-15 7:56 ` [PATCH v2 4/5] drm/rcar-du: dsi: Support DSC in the pipeline Tomi Valkeinen
2026-05-15 7:56 ` [PATCH v2 5/5] arm64: dts: renesas: Add Renesas R-Car V4H DSC Tomi Valkeinen
2026-05-15 8:01 ` [PATCH v2 0/5] drm/rcar-du: Add support for DSI pipelines with DSC Geert Uytterhoeven
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