From 294353d950ab3e47d7694d382e50c887206f541a Mon Sep 17 00:00:00 2001 From: Jisheng Zhang Date: Thu, 25 Mar 2021 15:26:04 +0800 Subject: PCI: dwc: Move dw_pcie_msi_init() to dw_pcie_setup_rc() If the host which makes use of IP's integrated MSI Receiver losts power during suspend, we need to reinit the RC and MSI Receiver in resume. But after we move dw_pcie_msi_init() into the core, we have no API to do so. Usually the dwc users need to call dw_pcie_setup_rc() to reinit the RC, we can solve this problem by moving dw_pcie_msi_init() to dw_pcie_setup_rc(). Link: https://lore.kernel.org/r/20210325152604.6e79deba@xhacker.debian Signed-off-by: Jisheng Zhang Signed-off-by: Lorenzo Pieralisi Reviewed-by: Rob Herring --- drivers/pci/controller/dwc/pcie-designware-host.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'drivers/pci') diff --git a/drivers/pci/controller/dwc/pcie-designware-host.c b/drivers/pci/controller/dwc/pcie-designware-host.c index 7e55b2b66182..e6c274f4485c 100644 --- a/drivers/pci/controller/dwc/pcie-designware-host.c +++ b/drivers/pci/controller/dwc/pcie-designware-host.c @@ -400,7 +400,6 @@ 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 && pci->ops->start_link) { ret = pci->ops->start_link(pci); @@ -551,6 +550,8 @@ 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); -- cgit v1.2.3