9024143e70
When programming the inbound/outbound ATUs, we call usleep_range() after
each checking PCIE_ATU_ENABLE bit. Unfortunately, the ATU programming
can be executed in atomic context:
inbound ATU programming could be called through
pci_epc_write_header()
=>dw_pcie_ep_write_header()
=>dw_pcie_prog_inbound_atu()
outbound ATU programming could be called through
pci_bus_read_config_dword()
=>dw_pcie_rd_conf()
=>dw_pcie_prog_outbound_atu()
Fix this issue by calling mdelay() instead.
Fixes:
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|---|---|---|
| .. | ||
| Kconfig | ||
| Makefile | ||
| pci-dra7xx.c | ||
| pci-exynos.c | ||
| pci-imx6.c | ||
| pci-keystone-dw.c | ||
| pci-keystone.c | ||
| pci-keystone.h | ||
| pci-layerscape.c | ||
| pcie-armada8k.c | ||
| pcie-artpec6.c | ||
| pcie-designware-ep.c | ||
| pcie-designware-host.c | ||
| pcie-designware-plat.c | ||
| pcie-designware.c | ||
| pcie-designware.h | ||
| pcie-hisi.c | ||
| pcie-histb.c | ||
| pcie-kirin.c | ||
| pcie-qcom.c | ||
| pcie-spear13xx.c | ||