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In suspend_noirq() call if link doesn't goto L2, PERST# is asserted to bring link to detect state. However, this is causing surprise link down AER error. Since Kernel is executing noirq suspend calls, AER interrupt is not processed. PME and AER are shared interrupts and PCIe subsystem driver enables wake capability of PME irq during suspend. So this AER will cause suspend failure due to pending AER interrupt. After PCIe link is in L2, interrupts are not expected since PCIe controller will be in reset state. Disable PCIe interrupts before going to L2 state to avoid pending AER interrupt. Link: https://lore.kernel.org/r/20210623100525.19944-4-omp@nvidia.com Signed-off-by: Om Prakash Singh <omp@nvidia.com> Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> Reviewed-by: Bjorn Helgaas <bhelgaas@google.com> Acked-by: Vidya Sagar <vidyas@nvidia.com> |
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| .. | ||
| Kconfig | ||
| Makefile | ||
| pci-dra7xx.c | ||
| pci-exynos.c | ||
| pci-imx6.c | ||
| pci-keystone.c | ||
| pci-layerscape-ep.c | ||
| pci-layerscape.c | ||
| pci-meson.c | ||
| pcie-al.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-fu740.c | ||
| pcie-hisi.c | ||
| pcie-histb.c | ||
| pcie-intel-gw.c | ||
| pcie-kirin.c | ||
| pcie-qcom.c | ||
| pcie-spear13xx.c | ||
| pcie-tegra194-acpi.c | ||
| pcie-tegra194.c | ||
| pcie-uniphier-ep.c | ||
| pcie-uniphier.c | ||