diff mbox series

[v2,5/8] dt-bindings: display: allwinner: Add DE33 planes

Message ID 20260509190015.79086-6-jernej.skrabec@siol.net (mailing list archive)
State New
Headers
Series drm/sun4i: update DE33 support |

Commit Message

Jernej Škrabec May 9, 2026, 7 p.m. UTC 
From: Jernej Skrabec <jernej.skrabec@gmail.com>

Allwinner Display Engine 3.3 contains planes, which are shared resources
between all mixers present in SoC. They can be assigned to specific
mixer by using registers which reside in display clocks MMIO.

Add a binding for them.

Signed-off-by: Jernej Skrabec <jernej.skrabec@gmail.com>
---
Changes from v1:
- dropped | for description
- better description for allwinner,plane-mapping

 .../allwinner,sun50i-h616-de33-planes.yaml    | 46 +++++++++++++++++++
 1 file changed, 46 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/display/allwinner,sun50i-h616-de33-planes.yaml

Comments

Krzysztof Kozlowski May 14, 2026, 12:01 p.m. UTC | #1 
On Sat, May 09, 2026 at 09:00:12PM +0200, Jernej Skrabec wrote:
> From: Jernej Skrabec <jernej.skrabec@gmail.com>
> 
> Allwinner Display Engine 3.3 contains planes, which are shared resources
> between all mixers present in SoC. They can be assigned to specific
> mixer by using registers which reside in display clocks MMIO.
> 
> Add a binding for them.
> 
> Signed-off-by: Jernej Skrabec <jernej.skrabec@gmail.com>
> ---
> Changes from v1:
> - dropped | for description
> - better description for allwinner,plane-mapping

Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com>

Best regards,
Krzysztof
diff mbox series

Patch

diff --git a/Documentation/devicetree/bindings/display/allwinner,sun50i-h616-de33-planes.yaml b/Documentation/devicetree/bindings/display/allwinner,sun50i-h616-de33-planes.yaml
new file mode 100644
index 000000000000..0a07cb8a5f79
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/allwinner,sun50i-h616-de33-planes.yaml
@@ -0,0 +1,46 @@ 
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/allwinner,sun50i-h616-de33-planes.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Allwinner H616 Display Engine 3.3 planes
+
+maintainers:
+  - Jernej Skrabec <jernej.skrabec@gmail.com>
+
+description:
+  Display Engine 3.3 planes are independent of mixers, contrary to
+  previous generations of Display Engine. Planes can be assigned to
+  mixers independently and even dynamically during runtime.
+
+properties:
+  compatible:
+    enum:
+      - allwinner,sun50i-h616-de33-planes
+
+  reg:
+    maxItems: 1
+
+  allwinner,plane-mapping:
+    $ref: /schemas/types.yaml#/definitions/phandle
+    description:
+      Phandle of the device responsible for assigning (mapping) planes
+      between mixers.
+
+required:
+  - compatible
+  - reg
+  - allwinner,plane-mapping
+
+additionalProperties: false
+
+examples:
+  - |
+    planes: planes@100000 {
+        compatible = "allwinner,sun50i-h616-de33-planes";
+        reg = <0x100000 0x180000>;
+        allwinner,plane-mapping = <&display_clocks>;
+    };
+
+...