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Adds "linux,pci-domain" as required property for iMX8MQ to indicate pci controller index. This adjustment paves the way for eliminating the hardcoded check on the base register for acquiring the controller_id. ... if (dbi_base->start == IMX8MQ_PCIE2_BASE_ADDR) imx6_pcie->controller_id = 1; ... The controller_id is crucial and utilized for certain register bit positions. It must align precisely with the controller index in the SoC. An auto-incremented ID don't fit this case. The DTS or fuse configurations may deactivate specific PCI controllers. Reviewed-by: Rob Herring Signed-off-by: Frank Li --- Notes: Change from v8 to v9 - Add rob's review tag Change from v6 to v8 -none Change from v5 to v6 - rework commit message to explain why need required and why auto increase id not work Change from v4 to v5 - new patch at v5 .../bindings/pci/fsl,imx6q-pcie-common.yaml | 11 +++++++++++ 1 file changed, 11 insertions(+) diff --git a/Documentation/devicetree/bindings/pci/fsl,imx6q-pcie-common.yaml b/Documentation/devicetree/bindings/pci/fsl,imx6q-pcie-common.yaml index d91b639ae7ae7..8f39b4e6e8491 100644 --- a/Documentation/devicetree/bindings/pci/fsl,imx6q-pcie-common.yaml +++ b/Documentation/devicetree/bindings/pci/fsl,imx6q-pcie-common.yaml @@ -265,6 +265,17 @@ allOf: - const: apps - const: turnoff + - if: + properties: + compatible: + contains: + enum: + - fsl,imx8mq-pcie + - fsl,imx8mq-pcie-ep + then: + required: + - linux,pci-domain + additionalProperties: true ... -- 2.34.1