[PATCH v3 2/6] dt-bindings: soc: imx93-media-blk-ctrl: Add LDB subnode into schema and example

Alexander Stein
2025-03-04T15:49:52Z

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..cd785111928bf 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 = <0x0 0x4ac10000 0x10000>;
+
+ 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