After we move dw_pcie_msi_init() into core -- dw_pcie_host_init(), the MSI stops working after resume. Because dw_pcie_host_init() is only called once during probe. To fix this issue, we move dw_pcie_msi_init() to dw_pcie_setup_rc(). Signed-off-by: Jisheng Zhang <Jisheng.Zhang@xxxxxxxxxxxxx> --- drivers/pci/controller/dwc/pcie-designware-host.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/pci/controller/dwc/pcie-designware-host.c b/drivers/pci/controller/dwc/pcie-designware-host.c index 99ef808a40a9..e1db9056df0b 100644 --- a/drivers/pci/controller/dwc/pcie-designware-host.c +++ b/drivers/pci/controller/dwc/pcie-designware-host.c @@ -419,7 +419,6 @@ int dw_pcie_host_init(struct pcie_port *pp) } dw_pcie_setup_rc(pp); - dw_pcie_msi_init(pp); if (!dw_pcie_link_up(pci) && pci->ops->start_link) { ret = pci->ops->start_link(pci); @@ -570,6 +569,8 @@ void dw_pcie_setup_rc(struct pcie_port *pp) } } + dw_pcie_msi_init(pp); + /* Setup RC BARs */ dw_pcie_writel_dbi(pci, PCI_BASE_ADDRESS_0, 0x00000004); dw_pcie_writel_dbi(pci, PCI_BASE_ADDRESS_1, 0x00000000); -- 2.29.2