dt-bindings: display: panel: properly document LG LD070WX3 panel

LG LD070WX3-SL01 was mistakenly documented as a simple DSI panel, which it
clearly is not. Address this by adding the proper schema for this panel.

There is only one user of this panel binding in the mainline Linux kernel,
which is the Nvidia tablet Tegra Note 7. Its panel is broken anyway since
it cannot initialize properly if the bootloader does not leave a
pre-initialized panel. It also cannot suspend or re-initialize properly,
since no DSI configuration is set and it has a loose regulator which
relies on an always-on property rather than being hooked to the panel
where it belongs.

Tegra Note 7 device tree is adjusted as a part of this series.

Signed-off-by: Svyatoslav Ryhel <clamor95@gmail.com>
Acked-by: Conor Dooley <conor.dooley@microchip.com>
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://patch.msgid.link/20251110091440.5251-2-clamor95@gmail.com

diff --git a/Documentation/devicetree/bindings/display/panel/lg,ld070wx3-sl01.yaml b/Documentation/devicetree/bindings/display/panel/lg,ld070wx3-sl01.yaml
new file mode 100644 (file)
index 0000000..0f0b907
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/panel/lg,ld070wx3-sl01.yaml
@@ -0,0 +1,60 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/panel/lg,ld070wx3-sl01.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: LG Corporation 7" WXGA TFT LCD panel
+
+maintainers:
+  - Svyatoslav Ryhel <clamor95@gmail.com>
+
+allOf:
+  - $ref: panel-common.yaml#
+
+properties:
+  compatible:
+    items:
+      - const: lg,ld070wx3-sl01
+
+  reg:
+    maxItems: 1
+
+  vdd-supply: true
+  vcc-supply: true
+
+  backlight: true
+  port: true
+
+required:
+  - compatible
+  - vdd-supply
+  - vcc-supply
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/gpio/gpio.h>
+
+    dsi {
+        #address-cells = <1>;
+        #size-cells = <0>;
+
+        panel@0 {
+            compatible = "lg,ld070wx3-sl01";
+            reg = <0>;
+
+            vdd-supply = <&vdd_3v3_lcd>;
+            vcc-supply = <&vcc_1v8_lcd>;
+
+            backlight = <&backlight>;
+
+            port {
+                endpoint {
+                    remote-endpoint = <&dsi0_out>;
+                };
+            };
+        };
+    };
+...

diff --git a/Documentation/devicetree/bindings/display/panel/panel-simple-dsi.yaml b/Documentation/devicetree/bindings/display/panel/panel-simple-dsi.yaml
index ac2db8cf5eb769e58dcc1550b1990fc04b26bf81..4c4b7cc7566995d788241e0d3f1f1c27bb365de1 100644 (file)
--- a/Documentation/devicetree/bindings/display/panel/panel-simple-dsi.yaml
+++ b/Documentation/devicetree/bindings/display/panel/panel-simple-dsi.yaml
@@ -42,8 +42,6 @@ properties:
       - kingdisplay,kd097d04
         # LG ACX467AKM-7 4.95" 1080×1920 LCD Panel
       - lg,acx467akm-7
-        # LG Corporation 7" WXGA TFT LCD panel
-      - lg,ld070wx3-sl01
         # LG Corporation 5" HD TFT LCD panel
       - lg,lh500wx1-sd03
         # Lincoln LCD197 5" 1080x1920 LCD panel