linux-kernel - [PATCH v2 1/3] dt-bindings: display: himax-hx8394: Add Microchip AC40T08A MIPI Display panel

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Date: Mon, 1 Jul 2024 14:28:35 +0530
From: Manikandan Muralidharan <manikandan.m@...rochip.com>
To: <megi@....cz>, <javierm@...hat.com>, <neil.armstrong@...aro.org>,
	<quic_jesszhan@...cinc.com>, <sam@...nborg.org>, <airlied@...il.com>,
	<daniel@...ll.ch>, <maarten.lankhorst@...ux.intel.com>, <mripard@...nel.org>,
	<tzimmermann@...e.de>, <robh@...nel.org>, <krzk+dt@...nel.org>,
	<conor+dt@...nel.org>, <dri-devel@...ts.freedesktop.org>,
	<devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>
CC: <manikandan.m@...rochip.com>
Subject: [PATCH v2 1/3] dt-bindings: display: himax-hx8394: Add Microchip AC40T08A MIPI Display panel

Add compatible string for the Microchip's AC40T08A MIPI Display
panel.This panel uses a Himax HX8394 display controller.
The reset line is not populated and leads to driver probe issues,
thus add conditional block to narrow reset-gpio property per variant.

Signed-off-by: Manikandan Muralidharan <manikandan.m@...rochip.com>
---
changes in v2:
- re-order compatible string alphabetically.
- Add conditional block to narrow reset-gpio property from required
list based on compatible string check
---
 .../bindings/display/panel/himax,hx8394.yaml    | 17 +++++++++++++----
 1 file changed, 13 insertions(+), 4 deletions(-)

diff --git a/Documentation/devicetree/bindings/display/panel/himax,hx8394.yaml b/Documentation/devicetree/bindings/display/panel/himax,hx8394.yaml
index 644387e4fb6f..75ccabff308b 100644
--- a/Documentation/devicetree/bindings/display/panel/himax,hx8394.yaml
+++ b/Documentation/devicetree/bindings/display/panel/himax,hx8394.yaml
@@ -15,14 +15,12 @@ description:
   such as the HannStar HSD060BHW4 720x1440 TFT LCD panel connected with
   a MIPI-DSI video interface.
 
-allOf:
-  - $ref: panel-common.yaml#
-
 properties:
   compatible:
     items:
       - enum:
           - hannstar,hsd060bhw4
+          - microchip,ac40t08a-mipi-panel
           - powkiddy,x55-panel
       - const: himax,hx8394
 
@@ -46,7 +44,6 @@ properties:
 required:
   - compatible
   - reg
-  - reset-gpios
   - backlight
   - port
   - vcc-supply
@@ -54,6 +51,18 @@ required:
 
 additionalProperties: false
 
+allOf:
+  - $ref: panel-common.yaml#
+  - if:
+      not:
+        properties:
+          compatible:
+            enum:
+              - microchip,ac40t08a-mipi-panel
+    then:
+      required:
+        - reset-gpios
+
 examples:
   - |
     #include <dt-bindings/gpio/gpio.h>
-- 
2.25.1