diff options
| author |   Jisheng Zhang <Jisheng.Zhang@synaptics.com> | 2021-03-25 15:26:04 +0800 |
|---|---|---|
| committer |   Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> | 2021-04-29 17:05:58 +0100 |
| commit | 294353d950ab3e47d7694d382e50c887206f541a (patch) | |
| tree | 8f4a492a8fdf506b0820139d696e633bf3d34541 /drivers/pci | |
| parent | PCI: keystone: Let AM65 use the pci_ops defined in pcie-designware-host.c (diff) | |
| download | linux-dev-294353d950ab3e47d7694d382e50c887206f541a.tar.xz linux-dev-294353d950ab3e47d7694d382e50c887206f541a.zip | |
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 <Jisheng.Zhang@synaptics.com>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Diffstat (limited to 'drivers/pci')
| -rw-r--r-- | drivers/pci/controller/dwc/pcie-designware-host.c | 3 |
1 files changed, 2 insertions, 1 deletions
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); |