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Update the binding schema to allow a single reg entry for fsl,imx6sx-ldb while keeping the existing constraints unchanged for the other compatible strings. Fix below DTB_CHECK warings: arch/arm/boot/dts/nxp/imx/imx6sx-nitrogen6sx.dtb: bridge@18 (fsl,imx6sx-l= db): reg: [[24, 4]] is too short Acked-by: Rob Herring (Arm) Signed-off-by: Frank Li --- Related two theads: - https://lore.kernel.org/imx/178154922879.1630652.11500293336634076421.rob= h@kernel.org/ Mixing the addressable and non-addressable child nodes is allowed according= to discussion [1]. Link: https://lore.kernel.org/all/n6akxiayi3g6gxcqhreb4iaohmeokoalnqup6h5r2= fwdt4zijt@u2wyps55ayqm/ [1] --- .../bindings/display/bridge/fsl,ldb.yaml | 23 +++++++++++++-----= ---- 1 file changed, 14 insertions(+), 9 deletions(-) diff --git a/Documentation/devicetree/bindings/display/bridge/fsl,ldb.yaml = b/Documentation/devicetree/bindings/display/bridge/fsl,ldb.yaml index 7f380879fffdf..e5a8870bb76a6 100644 --- a/Documentation/devicetree/bindings/display/bridge/fsl,ldb.yaml +++ b/Documentation/devicetree/bindings/display/bridge/fsl,ldb.yaml @@ -28,9 +28,11 @@ properties: const: ldb =20 reg: + minItems: 1 maxItems: 2 =20 reg-names: + minItems: 1 items: - const: ldb - const: lvds @@ -83,15 +85,6 @@ allOf: ports: properties: port@2: false - - if: - not: - properties: - compatible: - contains: - const: fsl,imx6sx-ldb - then: - required: - - reg-names =20 - if: properties: @@ -100,7 +93,19 @@ allOf: const: fsl,imx6sx-ldb then: properties: + reg: + maxItems: 1 + reg-names: + maxItems: 1 nxp,enable-termination-resistor: false + else: + required: + - reg-names + properties: + reg: + minItems: 2 + reg-names: + minItems: 2 =20 additionalProperties: false =20 --=20 2.43.0 From nobody Sat Jul 25 04:31:12 2026 Received: from DB3PR0202CU003.outbound.protection.outlook.com (mail-northeuropeazon11010031.outbound.protection.outlook.com [52.101.84.31]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id BBAAB38E8AC; 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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,imx= 6sx-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 --- changes in v2 - remote status =3D "disabled" in example --- .../bindings/soc/imx/fsl,imx-iomuxc-gpr.yaml | 58 ++++++++++++++++++= ++++ 1 file changed, 58 insertions(+) diff --git a/Documentation/devicetree/bindings/soc/imx/fsl,imx-iomuxc-gpr.y= aml b/Documentation/devicetree/bindings/soc/imx/fsl,imx-iomuxc-gpr.yaml index 721a67e84c137..1879638918bab 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 =20 + '#address-cells': + const: 1 + + '#size-cells': + const: 1 + mux-controller: type: object $ref: /schemas/mux/reg-mux.yaml =20 + 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$': false =20 + - if: + properties: + compatible: + not: + contains: + const: fsl,imx6sx-iomuxc-gpr + then: + properties: + bridge@18: false + '#address-cells': false + '#size-cells': false + additionalProperties: false =20 required: @@ -87,4 +110,39 @@ examples: }; }; =20 + - | + #include + + syscon@20e4000 { + compatible =3D "fsl,imx6sx-iomuxc-gpr", "fsl,imx6q-iomuxc-gpr", "s= yscon", "simple-mfd"; + reg =3D <0x020e4000 0x4000>; + #address-cells =3D <1>; + #size-cells =3D <1>; + + bridge@18 { + compatible =3D "fsl,imx6sx-ldb"; + reg =3D <0x18 0x4>; + clocks =3D <&clks IMX6SX_CLK_LDB_DI0>; + clock-names =3D "ldb"; + + ports { + #address-cells =3D <1>; + #size-cells =3D <0>; + + port@0 { + reg =3D <0>; + + endpoint { + }; + }; + + port@1 { + reg =3D <1>; + + endpoint { + }; + }; + }; + }; + }; ... --=20 2.43.0 From nobody Sat Jul 25 04:31:12 2026 Received: from DB3PR0202CU003.outbound.protection.outlook.com (mail-northeuropeazon11010021.outbound.protection.outlook.com [52.101.84.21]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 26F9A3AFB18; Sat, 18 Jul 2026 14:46:05 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=fail smtp.client-ip=52.101.84.21 ARC-Seal: i=2; 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Update the binding schema to allow this child node for fsl,imx6ul-lcdif. Fixes the following CHECK_DTBS warning: arch/arm/boot/dts/nxp/imx/imx6ul-tx6ul-0010.dtb: lcdif@21c8000 (fsl,imx6u= l-lcdif): 'disp0' does not match any of the regexes: '^pinctrl-[0-9]+$' A follow-up patch renames the child node from disp0 to display0 to match the updated binding. Signed-off-by: Frank Li Acked-by: Rob Herring (Arm) --- sashiko report problem and allow dma/dma-names for i.MX6ul. which should be fine for this kinds of old platform. Ideally it should use port. but platform is too old to avoid break back compatiblity and leave as it. Needn't complex if-else branch. --- Documentation/devicetree/bindings/display/fsl,lcdif.yaml | 1 + 1 file changed, 1 insertion(+) diff --git a/Documentation/devicetree/bindings/display/fsl,lcdif.yaml b/Doc= umentation/devicetree/bindings/display/fsl,lcdif.yaml index 2dd0411ec6516..2b123ddf06841 100644 --- a/Documentation/devicetree/bindings/display/fsl,lcdif.yaml +++ b/Documentation/devicetree/bindings/display/fsl,lcdif.yaml @@ -182,6 +182,7 @@ allOf: contains: enum: - fsl,imx28-lcdif + - fsl,imx6ul-lcdif then: properties: dmas: false --=20 2.43.0 From nobody Sat Jul 25 04:31:12 2026 Received: from DUZPR83CU001.outbound.protection.outlook.com (mail-northeuropeazon11012015.outbound.protection.outlook.com [52.101.66.15]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id A516538E129; Sat, 18 Jul 2026 14:46:09 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=fail smtp.client-ip=52.101.66.15 ARC-Seal: i=2; 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Fix the following CHECK_DTBS warning: arch/arm/boot/dts/nxp/imx/imx6ul-tx6ul-0010.dtb: lcdif@21c8000 (fsl,imx6u= l-lcdif): 'disp0' does not match any of the regexes: '^pinctrl-[0-9]+$' Signed-off-by: Frank Li --- arch/arm/boot/dts/nxp/imx/imx6ul-tx6ul.dtsi | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/arm/boot/dts/nxp/imx/imx6ul-tx6ul.dtsi b/arch/arm/boot/dt= s/nxp/imx/imx6ul-tx6ul.dtsi index 192c6a95ae589..2f6916c0359c5 100644 --- a/arch/arm/boot/dts/nxp/imx/imx6ul-tx6ul.dtsi +++ b/arch/arm/boot/dts/nxp/imx/imx6ul-tx6ul.dtsi @@ -369,7 +369,7 @@ &lcdif { display =3D <&display>; status =3D "okay"; =20 - display: disp0 { + display: display0 { bits-per-pixel =3D <32>; bus-width =3D <24>; status =3D "okay"; --=20 2.43.0