linux-kernel - [PATCH v2 3/5] dt-bindings: display: armada: Improve the LCDC documentation

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Message-Id: <20190304202006.3863-4-lkundrak@v3.sk>
Date:   Mon,  4 Mar 2019 21:20:04 +0100
From:   Lubomir Rintel <lkundrak@...sk>
To:     Russell King <linux@...linux.org.uk>
Cc:     Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        dri-devel@...ts.freedesktop.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, Lubomir Rintel <lkundrak@...sk>
Subject: [PATCH v2 3/5] dt-bindings: display: armada: Improve the LCDC documentation

The port is a child, not a property. And should be accompanied by an
example. Plus a pair of cosmetic changes that don't seem to deserve a
separate commit.

Signed-off-by: Lubomir Rintel <lkundrak@...sk>

---
Changes since v1:
- Minor adjustments to the commit message wording.

 .../bindings/display/marvell,armada-lcdc.txt     | 16 ++++++++++++++--
 1 file changed, 14 insertions(+), 2 deletions(-)

diff --git a/Documentation/devicetree/bindings/display/marvell,armada-lcdc.txt b/Documentation/devicetree/bindings/display/marvell,armada-lcdc.txt
index 46525ea3e646..2606a8efc956 100644
--- a/Documentation/devicetree/bindings/display/marvell,armada-lcdc.txt
+++ b/Documentation/devicetree/bindings/display/marvell,armada-lcdc.txt
@@ -1,10 +1,11 @@
-Device Tree bindings for Armada DRM CRTC driver
+Marvell Armada LCD controller
+=============================
 
 Required properties:
+
  - compatible: value should be "marvell,dove-lcd".
  - reg: base address and size of the LCD controller
  - interrupts: single interrupt number for the LCD controller
- - port: video output port with endpoints, as described by graph.txt
 
 Optional properties:
 
@@ -19,6 +20,11 @@ Note: all clocks are optional but at least one must be specified.
 Further clocks may be added in the future according to requirements of
 different SoCs.
 
+Required child nodes:
+
+- port: video output port with endpoints, as described by
+  Documentation/devicetree/bindings/graph.txt
+
 Example:
 
 	lcd0: lcd-controller@...000 {
@@ -27,4 +33,10 @@ Example:
 		interrupts = <47>;
 		clocks = <&si5351 0>;
 		clock-names = "ext_ref_clk_1";
+
+		lcd0_port: port {
+			lcd0_rgb_out: endpoint {
+				remote-endpoint = <&encoder_rgb_in>;
+			};
+		};
 	};
-- 
2.20.1