[PATCH v6 1/2] dt-bindings: display: imx: Describe drm binding for fsl,imx-lcdc

From: Uwe Kleine-König
Date: Mon Mar 06 2023 - 06:53:19 EST


Modify the existing (fb-like) binding to support the drm-like binding in
parallel.

Reviewed-by: Rob Herring <robh@xxxxxxxxxx>
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@xxxxxxxxxxxxxx>
---
.../bindings/display/imx/fsl,imx-lcdc.yaml | 46 ++++++++++++++++++-
1 file changed, 45 insertions(+), 1 deletion(-)

diff --git a/Documentation/devicetree/bindings/display/imx/fsl,imx-lcdc.yaml b/Documentation/devicetree/bindings/display/imx/fsl,imx-lcdc.yaml
index 35a8fff036ca..c2b29622bceb 100644
--- a/Documentation/devicetree/bindings/display/imx/fsl,imx-lcdc.yaml
+++ b/Documentation/devicetree/bindings/display/imx/fsl,imx-lcdc.yaml
@@ -21,6 +21,9 @@ properties:
- fsl,imx25-fb
- fsl,imx27-fb
- const: fsl,imx21-fb
+ - items:
+ - const: fsl,imx25-lcdc
+ - const: fsl,imx21-lcdc

clocks:
maxItems: 3
@@ -31,6 +34,9 @@ properties:
- const: ahb
- const: per

+ port:
+ $ref: /schemas/graph.yaml#/properties/port
+
display:
$ref: /schemas/types.yaml#/definitions/phandle

@@ -59,17 +65,55 @@ properties:
description:
LCDC Sharp Configuration Register value.

+allOf:
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - fsl,imx1-lcdc
+ - fsl,imx21-lcdc
+ then:
+ properties:
+ display: false
+ fsl,dmacr: false
+ fsl,lpccr: false
+ fsl,lscr1: false
+
+ required:
+ - port
+
+ else:
+ properties:
+ port: false
+
+ required:
+ - display
+
required:
- compatible
- clocks
- clock-names
- - display
- interrupts
- reg

additionalProperties: false

examples:
+ - |
+ lcdc@53fbc000 {
+ compatible = "fsl,imx25-lcdc", "fsl,imx21-lcdc";
+ reg = <0x53fbc000 0x4000>;
+ interrupts = <39>;
+ clocks = <&clks 103>, <&clks 66>, <&clks 49>;
+ clock-names = "ipg", "ahb", "per";
+
+ port {
+ parallel_out: endpoint {
+ remote-endpoint = <&panel_in>;
+ };
+ };
+ };
- |
imxfb: fb@10021000 {
compatible = "fsl,imx21-fb";
--
2.39.1