linux-kernel - [PATCH 01/12] dt-bindings: panel: Add Samsung SOFEF00 DDIC with panel

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Message-Id: <20251104-sofef00-rebuild-v1-1-dfcfa17eb176@ixit.cz>
Date: Tue, 04 Nov 2025 23:16:09 +0100
From: David Heidelberg via B4 Relay <devnull+david.ixit.cz@...nel.org>
To: Neil Armstrong <neil.armstrong@...aro.org>, 
 Jessica Zhang <jessica.zhang@....qualcomm.com>, 
 Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>, 
 Maxime Ripard <mripard@...nel.org>, Thomas Zimmermann <tzimmermann@...e.de>, 
 David Airlie <airlied@...il.com>, Simona Vetter <simona@...ll.ch>, 
 Rob Herring <robh@...nel.org>, Krzysztof Kozlowski <krzk+dt@...nel.org>, 
 Conor Dooley <conor+dt@...nel.org>, 
 Thierry Reding <thierry.reding@...il.com>, Sam Ravnborg <sam@...nborg.org>, 
 Bjorn Andersson <andersson@...nel.org>, 
 Konrad Dybcio <konradybcio@...nel.org>, 
 Casey Connolly <casey.connolly@...aro.org>
Cc: dri-devel@...ts.freedesktop.org, devicetree@...r.kernel.org, 
 linux-kernel@...r.kernel.org, linux-arm-msm@...r.kernel.org, 
 phone-devel@...r.kernel.org, David Heidelberg <david@...t.cz>
Subject: [PATCH 01/12] dt-bindings: panel: Add Samsung SOFEF00 DDIC with
 panel

From: David Heidelberg <david@...t.cz>

Basic description for S6E3FC2X01 DDIC with attached panels

 - Samsung AMS601NT22 6.01 inch, 1080x2160 pixels, 18:9 ratio
 - Samsung AMS628NW01 6.28 inch, 1080x2280 pixels, 19:9 ratio

This panel has three supplies, while panel-simple-dsi is limited to one.
There is no user of this compatible, nor the compatible make sense.
Remove it from simple DSI panel definitions.

Signed-off-by: David Heidelberg <david@...t.cz>
---
 .../bindings/display/panel/panel-simple-dsi.yaml   | 25 ++-----
 .../bindings/display/panel/samsung,sofef00.yaml    | 83 ++++++++++++++++++++++
 2 files changed, 87 insertions(+), 21 deletions(-)

diff --git a/Documentation/devicetree/bindings/display/panel/panel-simple-dsi.yaml b/Documentation/devicetree/bindings/display/panel/panel-simple-dsi.yaml
index ac2db8cf5eb76..464d7c8a7665e 100644
--- a/Documentation/devicetree/bindings/display/panel/panel-simple-dsi.yaml
+++ b/Documentation/devicetree/bindings/display/panel/panel-simple-dsi.yaml
@@ -19,6 +19,9 @@ description: |
 
   If the panel is more advanced a dedicated binding file is required.
 
+allOf:
+  - $ref: panel-common.yaml#
+
 properties:
 
   compatible:
@@ -56,8 +59,6 @@ properties:
       - panasonic,vvx10f034n00
         # Samsung s6e3fa7 1080x2220 based AMS559NK06 AMOLED panel
       - samsung,s6e3fa7-ams559nk06
-        # Samsung sofef00 1080x2280 AMOLED panel
-      - samsung,sofef00
         # Shangai Top Display Optoelectronics 7" TL070WSH30 1024x600 TFT LCD panel
       - tdo,tl070wsh30
 
@@ -70,30 +71,12 @@ properties:
   reset-gpios: true
   port: true
   power-supply: true
-  vddio-supply: true
-
-allOf:
-  - $ref: panel-common.yaml#
-  - if:
-      properties:
-        compatible:
-          enum:
-            - samsung,sofef00
-    then:
-      properties:
-        power-supply: false
-      required:
-        - vddio-supply
-    else:
-      properties:
-        vddio-supply: false
-      required:
-        - power-supply
 
 additionalProperties: false
 
 required:
   - compatible
+  - power-supply
   - reg
 
 examples:
diff --git a/Documentation/devicetree/bindings/display/panel/samsung,sofef00.yaml b/Documentation/devicetree/bindings/display/panel/samsung,sofef00.yaml
new file mode 100644
index 0000000000000..527a10e3b798e
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/panel/samsung,sofef00.yaml
@@ -0,0 +1,83 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/panel/samsung,sofef00.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Samsung SOFEF00 AMOLED DDIC
+
+description: The SOFEF00 is display driver IC with connected panel.
+
+maintainers:
+  - David Heidelberg <david@...t.cz>
+
+allOf:
+  - $ref: panel-common.yaml#
+
+properties:
+  compatible:
+    items:
+      - enum:
+            # Samsung 6.01 inch, 1080x2160 pixels, 18:9 ratio
+          - samsung,sofef00-ams601nt22
+            # Samsung 6.28 inch, 1080x2280 pixels, 19:9 ratio
+          - samsung,sofef00-ams628nw01
+      - const: samsung,sofef00
+
+  reg:
+    maxItems: 1
+
+  reset-gpios: true
+
+  port: true
+
+  vddio-supply:
+    description: VDD regulator
+
+  vci-supply:
+    description: VCI regulator
+
+  poc-supply:
+    description: POC regulator
+
+required:
+  - compatible
+  - reset-gpios
+  - vddio-supply
+  - vci-supply
+  - poc-supply
+
+unevaluatedProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/gpio/gpio.h>
+
+    dsi {
+        #address-cells = <1>;
+        #size-cells = <0>;
+
+        panel@0 {
+            compatible = "samsung,sofef00-ams628nw01", "samsung,sofef00";
+            reg = <0>;
+
+            vddio-supply = <&vreg_l14a_1p88>;
+            vci-supply = <&s2dos05_buck1>;
+            poc-supply = <&s2dos05_ldo1>;
+
+            te-gpios = <&tlmm 10 GPIO_ACTIVE_HIGH>;
+            reset-gpios = <&tlmm 6 GPIO_ACTIVE_HIGH>;
+
+            pinctrl-0 = <&panel_active>;
+            pinctrl-1 = <&panel_suspend>;
+            pinctrl-names = "default", "sleep";
+
+            port {
+                panel_in: endpoint {
+                    remote-endpoint = <&mdss_dsi0_out>;
+                };
+            };
+        };
+    };
+
+...

-- 
2.51.0