On Wed, Jul 08, 2026 at 04:29:03PM -0400, [email protected] wrote:
> From: Frank Li <[email protected]>
>
> The legacy i.MX6SX (>15 year) SoC imx-iomuxc-gpr contains one LDB_CTRL
> register. Allow the LVDS Display Bridge(LDB) child node under
> imx-iomuxc-gpr.
>
> Fix below CHECK_DTBS warnings:
> arch/arm/boot/dts/nxp/imx/imx6sx-nitrogen6sx.dtb: syscon@20e4000
> (fsl,imx6sx-iomuxc-gpr): '#address-cells', '#size-cells', 'bridge@18' do not
> match any of the regexes: '^ipu[12]_csi[01]_mux$', '^pinctrl-[0-9]+$
>
> Signed-off-by: Frank Li <[email protected]>
> ---
> .../bindings/soc/imx/fsl,imx-iomuxc-gpr.yaml | 59
> ++++++++++++++++++++++
> 1 file changed, 59 insertions(+)
>
> diff --git
> a/Documentation/devicetree/bindings/soc/imx/fsl,imx-iomuxc-gpr.yaml
> b/Documentation/devicetree/bindings/soc/imx/fsl,imx-iomuxc-gpr.yaml
> index 721a67e84c137..c3b942bbcd6da 100644
> --- a/Documentation/devicetree/bindings/soc/imx/fsl,imx-iomuxc-gpr.yaml
> +++ b/Documentation/devicetree/bindings/soc/imx/fsl,imx-iomuxc-gpr.yaml
> @@ -47,10 +47,21 @@ properties:
> reg:
> maxItems: 1
>
> + '#address-cells':
> + const: 1
> +
> + '#size-cells':
> + const: 1
> +
> mux-controller:
> type: object
> $ref: /schemas/mux/reg-mux.yaml
>
> + bridge@18:
> + type: object
> + $ref: /schemas/display/bridge/fsl,ldb.yaml#
> + unevaluatedProperties: false
> +
> patternProperties:
> "^ipu[12]_csi[01]_mux$":
> type: object
> @@ -67,6 +78,18 @@ allOf:
> patternProperties:
> '^ipu[12]_csi[01]_mux$': false
>
> + - if:
> + properties:
> + compatible:
> + not:
> + contains:
> + const: fsl,imx6sx-iomuxc-gpr
> + then:
> + properties:
> + bridge@18: false
> + '#address-cells': false
> + '#size-cells': false
> +
> additionalProperties: false
>
> required:
> @@ -87,4 +110,40 @@ examples:
> };
> };
>
> + - |
> + #include <dt-bindings/clock/imx6sx-clock.h>
> +
> + syscon@20e4000 {
> + compatible = "fsl,imx6sx-iomuxc-gpr", "fsl,imx6q-iomuxc-gpr",
> "syscon", "simple-mfd";
> + reg = <0x020e4000 0x4000>;
> + #address-cells = <1>;
> + #size-cells = <1>;
> +
> + bridge@18 {
> + compatible = "fsl,imx6sx-ldb";
> + reg = <0x18 0x4>;
> + clocks = <&clks IMX6SX_CLK_LDB_DI0>;
> + clock-names = "ldb";
> + status = "disabled";
Examples should be enabled. Drop.
> +
> + ports {
> + #address-cells = <1>;
> + #size-cells = <0>;
> +
> + port@0 {
> + reg = <0>;
> +
> + endpoint {
> + };
> + };
> +
> + port@1 {
> + reg = <1>;
> +
> + endpoint {
> + };
> + };
> + };
> + };
> + };
> ...
>
> --
> 2.43.0
>
