diff mbox series

[1/2] dt-bindings: display: bridge: ldb: Implement simple Freescale i.MX91/93 DPI bridge

Message ID 20250211084119.849324-2-alexander.stein@ew.tq-group.com (mailing list archive)
State New
Headers show
Series i.MX91/93 parallel display bridge | expand

Commit Message

Alexander Stein Feb. 11, 2025, 8:41 a.m. UTC
The i.MX91/93 contains a single syscon registers which is responsible
for configuring DPI output format. Add DT binding which represents
this configuration as a bridge.

Signed-off-by: Alexander Stein <alexander.stein@ew.tq-group.com>
---
 .../bridge/fsl,imx9-parallel-disp-fmt.yaml    | 78 +++++++++++++++++++
 1 file changed, 78 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/display/bridge/fsl,imx9-parallel-disp-fmt.yaml

Comments

Frank Li Feb. 11, 2025, 4:53 p.m. UTC | #1
On Tue, Feb 11, 2025 at 09:41:18AM +0100, Alexander Stein wrote:
> The i.MX91/93 contains a single syscon registers which is responsible
> for configuring DPI output format. Add DT binding which represents
> this configuration as a bridge.
>
> Signed-off-by: Alexander Stein <alexander.stein@ew.tq-group.com>
> ---
>  .../bridge/fsl,imx9-parallel-disp-fmt.yaml    | 78 +++++++++++++++++++
>  1 file changed, 78 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/display/bridge/fsl,imx9-parallel-disp-fmt.yaml
>
> diff --git a/Documentation/devicetree/bindings/display/bridge/fsl,imx9-parallel-disp-fmt.yaml b/Documentation/devicetree/bindings/display/bridge/fsl,imx9-parallel-disp-fmt.yaml
> new file mode 100644
> index 0000000000000..54cb73b59b1eb
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/display/bridge/fsl,imx9-parallel-disp-fmt.yaml
> @@ -0,0 +1,78 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/display/bridge/fsl,imx9-parallel-disp-fmt.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Freescale i.MX91/93 DPI bridge
> +
> +maintainers:
> +  - Alexander Stein <alexander.stein@ew.tq-group.com>
> +
> +description: |

Needn't |

> +  The i.MX91/93 mediamix contains a single register which is responsible
> +  for configuring the parallel display output format. This describes
> +  this registers as bridge within the DT.
> +
> +properties:
> +  compatible:
> +    const: fsl,imx9-parallel-display-format


look like it should belong a property in fsl,imx8mm-disp-blk-ctrl.yaml.

Rob provide similar suggestion at
https://lore.kernel.org/imx/20250203220655.GA123074-robh@kernel.org/

Or at least, uplayer mfd yaml should link to this file.

Frank
> +
> +  reg:
> +    maxItems: 1
> +
> +  ports:
> +    $ref: /schemas/graph.yaml#/properties/ports
> +
> +    properties:
> +      port@0:
> +        $ref: /schemas/graph.yaml#/properties/port
> +        description: Video port for DPI input.
> +
> +      port@1:
> +        $ref: /schemas/graph.yaml#/properties/port
> +        description: Video port for DPI output (panel or bridge).
> +
> +    required:
> +      - port@0
> +      - port@1
> +
> +required:
> +  - compatible
> +  - reg
> +  - ports
> +
> +additionalProperties: false
> +
> +examples:
> +  - |
> +    blk-ctrl {
> +        #address-cells = <1>;
> +        #size-cells = <1>;
> +
> +        bridge@60 {
> +            compatible = "fsl,imx9-parallel-display-format";
> +            reg = <0x60 0x4>;
> +            status = "disabled";
> +
> +            ports {
> +                #address-cells = <1>;
> +                #size-cells = <0>;
> +
> +                port@0 {
> +                    reg = <0>;
> +
> +                    dpi_from_lcdif: endpoint {
> +                        remote-endpoint = <&lcdif_to_dpi>;
> +                    };
> +                };
> +
> +                port@1 {
> +                    reg = <1>;
> +
> +                    dpi_out: endpoint {
> +                    };
> +                };
> +            };
> +        };
> +    };
> --
> 2.34.1
>
diff mbox series

Patch

diff --git a/Documentation/devicetree/bindings/display/bridge/fsl,imx9-parallel-disp-fmt.yaml b/Documentation/devicetree/bindings/display/bridge/fsl,imx9-parallel-disp-fmt.yaml
new file mode 100644
index 0000000000000..54cb73b59b1eb
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/bridge/fsl,imx9-parallel-disp-fmt.yaml
@@ -0,0 +1,78 @@ 
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/bridge/fsl,imx9-parallel-disp-fmt.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Freescale i.MX91/93 DPI bridge
+
+maintainers:
+  - Alexander Stein <alexander.stein@ew.tq-group.com>
+
+description: |
+  The i.MX91/93 mediamix contains a single register which is responsible
+  for configuring the parallel display output format. This describes
+  this registers as bridge within the DT.
+
+properties:
+  compatible:
+    const: fsl,imx9-parallel-display-format
+
+  reg:
+    maxItems: 1
+
+  ports:
+    $ref: /schemas/graph.yaml#/properties/ports
+
+    properties:
+      port@0:
+        $ref: /schemas/graph.yaml#/properties/port
+        description: Video port for DPI input.
+
+      port@1:
+        $ref: /schemas/graph.yaml#/properties/port
+        description: Video port for DPI output (panel or bridge).
+
+    required:
+      - port@0
+      - port@1
+
+required:
+  - compatible
+  - reg
+  - ports
+
+additionalProperties: false
+
+examples:
+  - |
+    blk-ctrl {
+        #address-cells = <1>;
+        #size-cells = <1>;
+
+        bridge@60 {
+            compatible = "fsl,imx9-parallel-display-format";
+            reg = <0x60 0x4>;
+            status = "disabled";
+
+            ports {
+                #address-cells = <1>;
+                #size-cells = <0>;
+
+                port@0 {
+                    reg = <0>;
+
+                    dpi_from_lcdif: endpoint {
+                        remote-endpoint = <&lcdif_to_dpi>;
+                    };
+                };
+
+                port@1 {
+                    reg = <1>;
+
+                    dpi_out: endpoint {
+                    };
+                };
+            };
+        };
+    };