linux-kernel - [PATCH] dt-bindings: display: sitronix,st7789v: document dc-gpios

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Message-Id: <20230326164700.104570-1-krzysztof.kozlowski@linaro.org>
Date:   Sun, 26 Mar 2023 18:47:00 +0200
From:   Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
To:     Neil Armstrong <neil.armstrong@...aro.org>,
        Sam Ravnborg <sam@...nborg.org>,
        David Airlie <airlied@...il.com>,
        Daniel Vetter <daniel@...ll.ch>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Maxime Ripard <mripard@...nel.org>,
        dri-devel@...ts.freedesktop.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org
Cc:     Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
Subject: [PATCH] dt-bindings: display: sitronix,st7789v: document dc-gpios

The device comes with DCX pin which is already used in
canaan/sipeed_maixduino.dts (although not in Linux driver).

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
---
 .../devicetree/bindings/display/panel/sitronix,st7789v.yaml   | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/Documentation/devicetree/bindings/display/panel/sitronix,st7789v.yaml b/Documentation/devicetree/bindings/display/panel/sitronix,st7789v.yaml
index d984b59daa4a..fa6556363cca 100644
--- a/Documentation/devicetree/bindings/display/panel/sitronix,st7789v.yaml
+++ b/Documentation/devicetree/bindings/display/panel/sitronix,st7789v.yaml
@@ -26,6 +26,10 @@ properties:
   spi-cpha: true
   spi-cpol: true
 
+  dc-gpios:
+    maxItems: 1
+    description: DCX pin, Display data/command selection pin in parallel interface
+
 required:
   - compatible
   - reg
-- 
2.34.1