[PATCH 1/3 v2] drm/panel: Add generic DSI panel YAML bindings

[PATCH 1/3 v2] drm/panel: Add generic DSI panel YAML bindings

[Linus Walleij]

This adds a starting point for processing and defining generic
bindings used by DSI panels. We just define one single bool
property to force the panel into video mode for now.

Cc: devicetree@vger.kernel.org
Suggested-by: Rob Herring <robh@kernel.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
ChangeLog v1->v2:
- New patch after feedback.
---
 .../display/panel/panel-dsi-common.yaml       | 31 +++++++++++++++++++
 1 file changed, 31 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/display/panel/panel-dsi-common.yaml

diff --git a/Documentation/devicetree/bindings/display/panel/panel-dsi-common.yaml b/Documentation/devicetree/bindings/display/panel/panel-dsi-common.yaml
new file mode 100644
index 000000000000..4242dc25c917
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/panel/panel-dsi-common.yaml
@@ -0,0 +1,31 @@
+# SPDX-License-Identifier: GPL-2.0
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/panel/panel-dsi-common.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Common Properties for DSI Display Panels
+
+maintainers:
+  - Linus Walleij <linus.walleij@linaro.org>
+
+description: |
+  This document defines device tree properties common to DSI, Display
+  Serial Interface panels. It doesn't constitue a device tree binding
+  specification by itself but is meant to be referenced by device tree
+  bindings.
+
+  When referenced from panel device tree bindings the properties defined in
+  this document are defined as follows. The panel device tree bindings are
+  responsible for defining whether each property is required or optional.
+
+properties:
+
+  enforce-video-mode:
+    type: boolean
+    description:
+      The best option is usually to run a panel in command mode, as this
+      gives better control over the panel hardware. However for different
+      reasons like broken hardware, missing features or testing, it may be
+      useful to be able to force a command mode-capable panel into video
+      mode.
-- 
2.21.0

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[PATCH 2/3 v2] drm/panel: Add DT bindings for Sony ACX424AKP

[Linus Walleij]

This adds device tree bindings for the Sony ACX424AKP panel.
Let's use YAML.

Cc: devicetree@vger.kernel.org
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
ChangeLog v1->v2:
- Suggest a stand-alone YAML bindings file for DSI panels in
  a separate patch, and use that to reference the
  boolean "enforce-video-mode" attribute for DSI panels
---
 .../display/panel/sony,acx424akp.yaml         | 50 +++++++++++++++++++
 1 file changed, 50 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/display/panel/sony,acx424akp.yaml

diff --git a/Documentation/devicetree/bindings/display/panel/sony,acx424akp.yaml b/Documentation/devicetree/bindings/display/panel/sony,acx424akp.yaml
new file mode 100644
index 000000000000..844665b0c953
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/panel/sony,acx424akp.yaml
@@ -0,0 +1,50 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/panel/sony,acx424akp.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Sony ACX424AKP 4" 480x864 AMOLED panel
+
+maintainers:
+  - Linus Walleij <linus.walleij@linaro.org>
+
+allOf:
+  - $ref: panel-common.yaml#
+  - $ref: panel-dsi-common.yaml#
+
+properties:
+  compatible:
+    const: sony,acx424akp
+  reg: true
+  port: true
+  reset-gpios: true
+  vddi-supply:
+     description: regulator that supplies the vddi voltage
+  enforce-video-mode: true
+
+required:
+  - compatible
+  - reg
+  - port
+  - reset-gpios
+  - power-supply
+
+additionalProperties: false
+
+examples:
+  - |
+    panel@0 {
+        compatible = "sony,acx424akp";
+        reg = <0>;
+        vddi-supply = <&foo>;
+        reset-gpios = <&foo_gpio 0 GPIO_ACTIVE_LOW>;
+
+        port {
+            panel_in: endpoint {
+                remote-endpoint = <&dsi_out>;
+            };
+        };
+    };
+
+...
\ No newline at end of file
-- 
2.21.0

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