[PATCH v2 4/9] PCI: imx6: Using "linux,pci-domain" as slot ID
From: Frank Li <Frank.Li@nxp.com>
Date: 2023-12-07 19:35:19
Also in:
imx, linux-devicetree, linux-pci, lkml
Subsystem:
pci driver for imx6, pci native host bridge and endpoint drivers, pci subsystem, the rest · Maintainers:
Richard Zhu, Lucas Stach, Lorenzo Pieralisi, Krzysztof Wilczyński, Manivannan Sadhasivam, Bjorn Helgaas, Linus Torvalds
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@nxp.com>
---
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
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