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From:   Lubomir Rintel <lkundrak@v3.sk>
To:     Rob Herring <robh+dt@kernel.org>,
        Mark Rutland <mark.rutland@arm.com>
Cc:     Russell King <linux@armlinux.org.uk>,
        dri-devel@lists.freedesktop.org, devicetree@vger.kernel.org,
        linux-kernel@vger.kernel.org, Lubomir Rintel <lkundrak@v3.sk>
Subject: [PATCH 6/6] dt-bindings: display: armada: Document bus-width property
Date:   Sun, 20 Jan 2019 18:25:34 +0100
Message-Id: <20190120172534.24617-7-lkundrak@v3.sk>
In-Reply-To: <20190120172534.24617-1-lkundrak@v3.sk>
References: <20190120172534.24617-1-lkundrak@v3.sk>
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This makes it possible to choose a different pixel format for the
endpoint. Modelled after what other LCD controllers use, including
marvell,pxa2xx-lcdc and atmel,hlcdc-display-controller and perhaps more.

Signed-off-by: Lubomir Rintel <lkundrak@v3.sk>
---
 .../bindings/display/armada/marvell-armada-drm.txt          | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/Documentation/devicetree/bindings/display/armada/marvell-arm=
ada-drm.txt b/Documentation/devicetree/bindings/display/armada/marvell-ar=
mada-drm.txt
index 53524077db25..0a734f6d5a1e 100644
--- a/Documentation/devicetree/bindings/display/armada/marvell-armada-drm=
.txt
+++ b/Documentation/devicetree/bindings/display/armada/marvell-armada-drm=
.txt
@@ -49,6 +49,11 @@ Required child nodes:
=20
 - port: video output port with endpoints, as described by
   Documentation/devicetree/bindings/graph.txt
+  The endpoints can optionally specify the following property:
+
+  - bus-width: recognized values are <12>, <16>, <18> and <24>, that
+    select "rgb444", "rgb565", "rgb666" or "rgb888" pixel format
+    respectively. Defaults to <24> if unspecified.
=20
 Example:
=20
@@ -61,6 +66,7 @@ Example:
=20
 		lcd0_port: port {
 			lcd0_rgb_out: endpoint {
+				bus-width =3D <24>;
 				remote-endpoint =3D <&encoder_rgb_in>;
 			};
 		};
--=20
2.20.1