Avoid use get slot id by compared with register physical address. If there are more than 2 slots, compared logic will become complex. Signed-off-by: Frank Li <Frank.Li@xxxxxxx> --- Notes: Change from v1 to v2 - fix of_get_pci_domain_nr return value check logic drivers/pci/controller/dwc/pci-imx6.c | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/drivers/pci/controller/dwc/pci-imx6.c b/drivers/pci/controller/dwc/pci-imx6.c index 509d459bdc5a1..548034151ee1a 100644 --- a/drivers/pci/controller/dwc/pci-imx6.c +++ b/drivers/pci/controller/dwc/pci-imx6.c @@ -33,6 +33,7 @@ #include <linux/pm_domain.h> #include <linux/pm_runtime.h> +#include "../../pci.h" #include "pcie-designware.h" #define IMX8MQ_GPR_PCIE_REF_USE_PAD BIT(9) @@ -1327,6 +1328,12 @@ static int imx6_pcie_probe(struct platform_device *pdev) "Failed to get PCIEPHY reset control\n"); } + /* Using linux,pci-domain as PCI slot id */ + imx6_pcie->controller_id = of_get_pci_domain_nr(node); + /* If there are not "linux,pci-domain" in dts file, means only 1 controller */ + if (imx6_pcie->controller_id < 0) + imx6_pcie->controller_id = 0; + switch (imx6_pcie->drvdata->variant) { case IMX7D: if (dbi_base->start == IMX8MQ_PCIE2_BASE_ADDR) -- 2.34.1