[PATCH v2 2/6] dt-bindings: soc: imx93-media-blk-ctrl: Add LDB subnode into schema and example

Alexander Stein
2025-02-24T14:28:54Z

Document the LDB bridge subnode and add the subnode into the example.
For the subnode to work, the block control must scan its subnodes and
bind drivers to them, do not misuse either simple-bus or simple-mfd
here.

Signed-off-by: Alexander Stein <alexander.stein@ew.tq-group.com>
---
.../soc/imx/fsl,imx93-media-blk-ctrl.yaml | 51 +++++++++++++++++++
1 file changed, 51 insertions(+)

diff --git a/Documentation/devicetree/bindings/soc/imx/fsl,imx93-media-blk-ctrl.yaml b/Documentation/devicetree/bindings/soc/imx/fsl,imx93-media-blk-ctrl.yaml
index b3554e7f9e76d..d914dea6ecbb5 100644
--- a/Documentation/devicetree/bindings/soc/imx/fsl,imx93-media-blk-ctrl.yaml
+++ b/Documentation/devicetree/bindings/soc/imx/fsl,imx93-media-blk-ctrl.yaml
@@ -24,6 +24,14 @@ properties:
reg:
maxItems: 1

+ ranges: true
+
+ '#address-cells':
+ const: 1
+
+ '#size-cells':
+ const: 1
+
'#power-domain-cells':
const: 1

@@ -46,9 +54,20 @@ properties:
- const: csi
- const: dsi

+ bridge@20:
+ type: object
+ additionalProperties: true
+ properties:
+ compatible:
+ contains:
+ const: fsl,imx93-ldb
+
required:
- compatible
- reg
+ - ranges
+ - '#address-cells'
+ - '#size-cells'
- power-domains
- clocks
- clock-names
@@ -77,4 +96,36 @@ examples:
clock-names = "apb", "axi", "nic", "disp", "cam",
"pxp", "lcdif", "isi", "csi", "dsi";
#power-domain-cells = <1>;
+ #address-cells = <1>;
+ #size-cells = <1>;
+ ranges;
+
+ bridge@20 {
+ compatible = "fsl,imx93-ldb";
+ reg = <0x20 0x4>, <0x24 0x4>;
+ reg-names = "ldb", "lvds";
+ clocks = <&clk IMX93_CLK_LVDS_GATE>;
+ clock-names = "ldb";
+
+ ports {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ port@0 {
+ reg = <0>;
+
+ ldb_from_lcdif2: endpoint {
+ remote-endpoint = <&lcdif2_to_ldb>;
+ };
+ };
+
+ port@1 {
+ reg = <1>;
+
+ ldb_lvds: endpoint {
+ remote-endpoint = <&ldb_to_panel>;
+ };
+ };
+ };
+ };
};
--
2.43.0