linux-kernel - [PATCH] dt-bindings: display: convert sitronix,st7586 to YAML

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Message-Id: <20250530-devicetree-convert-sitronix-st7586-to-yaml-v1-1-c132b512ec57@baylibre.com>
Date: Fri, 30 May 2025 18:05:42 -0500
From: David Lechner <dlechner@...libre.com>
To: David Airlie <airlied@...il.com>, Simona Vetter <simona@...ll.ch>, 
 Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>, 
 Maxime Ripard <mripard@...nel.org>, Thomas Zimmermann <tzimmermann@...e.de>, 
 Rob Herring <robh@...nel.org>, Krzysztof Kozlowski <krzk+dt@...nel.org>, 
 Conor Dooley <conor+dt@...nel.org>, David Lechner <david@...hnology.com>
Cc: dri-devel@...ts.freedesktop.org, devicetree@...r.kernel.org, 
 linux-kernel@...r.kernel.org, David Lechner <dlechner@...libre.com>
Subject: [PATCH] dt-bindings: display: convert sitronix,st7586 to YAML

Convert the sitronix,st7586 binding documentation from .txt to .yaml.

Also added a link to the datasheet while we are touching this.

Signed-off-by: David Lechner <dlechner@...libre.com>
---
 .../bindings/display/sitronix,st7586.txt           | 22 --------
 .../bindings/display/sitronix,st7586.yaml          | 61 ++++++++++++++++++++++
 MAINTAINERS                                        |  2 +-
 3 files changed, 62 insertions(+), 23 deletions(-)

diff --git a/Documentation/devicetree/bindings/display/sitronix,st7586.txt b/Documentation/devicetree/bindings/display/sitronix,st7586.txt
deleted file mode 100644
index 1d0dad1210d380849370738dbfb6a7b0e07773e8..0000000000000000000000000000000000000000
--- a/Documentation/devicetree/bindings/display/sitronix,st7586.txt
+++ /dev/null
@@ -1,22 +0,0 @@
-Sitronix ST7586 display panel
-
-Required properties:
-- compatible:	"lego,ev3-lcd".
-- a0-gpios:	The A0 signal (since this binding is for serial mode, this is
-                the pin labeled D1 on the controller, not the pin labeled A0)
-- reset-gpios:	Reset pin
-
-The node for this driver must be a child node of a SPI controller, hence
-all mandatory properties described in ../spi/spi-bus.txt must be specified.
-
-Optional properties:
-- rotation:	panel rotation in degrees counter clockwise (0,90,180,270)
-
-Example:
-	display@0{
-		compatible = "lego,ev3-lcd";
-		reg = <0>;
-		spi-max-frequency = <10000000>;
-		a0-gpios = <&gpio 43 GPIO_ACTIVE_HIGH>;
-		reset-gpios = <&gpio 80 GPIO_ACTIVE_HIGH>;
-	};
diff --git a/Documentation/devicetree/bindings/display/sitronix,st7586.yaml b/Documentation/devicetree/bindings/display/sitronix,st7586.yaml
new file mode 100644
index 0000000000000000000000000000000000000000..566aaf1aeac81657d3a425f1c585894a3a6f82d3
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/sitronix,st7586.yaml
@@ -0,0 +1,61 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/sitronix,st7586.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Sitronix ST7586 Display Controller
+
+maintainers:
+  - David Lechner <david@...hnology.com>
+
+description:
+  Sitronix ST7586 is a driver and controller for 4-level gray
+  scale and monochrome dot matrix LCD panels.
+  https://topwaydisplay.com/sites/default/files/2020-04/ST7586S.pdf
+
+$ref: panel/panel-common.yaml#
+
+additionalProperties: false
+
+properties:
+  compatible:
+    const: lego,ev3-lcd
+
+  reg:
+    maxItems: 1
+
+  spi-max-frequency:
+    maximum: 50000000
+
+  a0-gpios:
+    description:
+      The A0 signal (for serial mode, this is the pin labeled D1 on the
+      controller, not the pin labeled A0)
+    maxItems: 1
+
+  reset-gpios: true
+  rotation: true
+
+required:
+  - compatible
+  - reg
+  - a0-gpios
+  - reset-gpios
+
+examples:
+  - |
+    #include <dt-bindings/gpio/gpio.h>
+
+    spi {
+        #address-cells = <1>;
+        #size-cells = <0>;
+
+        display@0 {
+            compatible = "lego,ev3-lcd";
+            reg = <0>;
+            spi-max-frequency = <10000000>;
+            a0-gpios = <&gpio 43 GPIO_ACTIVE_HIGH>;
+            reset-gpios = <&gpio 80 GPIO_ACTIVE_HIGH>;
+        };
+    };
diff --git a/MAINTAINERS b/MAINTAINERS
index 0d59a5910e632350a4d72a761c6c5ce1d3a1bc34..58e9591f46c7b3f7621c5a4b66f469ae2a9f9cd9 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -7815,7 +7815,7 @@ DRM DRIVER FOR SITRONIX ST7586 PANELS
 M:	David Lechner <david@...hnology.com>
 S:	Maintained
 T:	git https://gitlab.freedesktop.org/drm/misc/kernel.git
-F:	Documentation/devicetree/bindings/display/sitronix,st7586.txt
+F:	Documentation/devicetree/bindings/display/sitronix,st7586.yaml
 F:	drivers/gpu/drm/sitronix/st7586.c
 
 DRM DRIVER FOR SITRONIX ST7571 PANELS

---
base-commit: 2a628f951ed54c30a232230b5b58349d2a8dbb11
change-id: 20250530-devicetree-convert-sitronix-st7586-to-yaml-db5d82b63ffa

Best regards,
-- 
David Lechner <dlechner@...libre.com>