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Merge branch 'pci/host/dwc'

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- Restore MSI Receiver mask during resume (Jisheng Zhang)

* pci/host/dwc:
  PCI: dwc: Restore MSI Receiver mask during resume
This commit is contained in:
Bjorn Helgaas 2022-03-22 17:16:23 -05:00
commit 0321da851e
1 changed files with 6 additions and 1 deletions
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7
drivers/pci/controller/dwc/pcie-designware-host.c
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@ -362,6 +362,12 @@ int dw_pcie_host_init(struct pcie_port *pp)
if (ret < 0)
return ret;
} else if (pp->has_msi_ctrl) {
u32 ctrl, num_ctrls;
num_ctrls = pp->num_vectors / MAX_MSI_IRQS_PER_CTRL;
for (ctrl = 0; ctrl < num_ctrls; ctrl++)
pp->irq_mask[ctrl] = ~0;
if (!pp->msi_irq) {
pp->msi_irq = platform_get_irq_byname_optional(pdev, "msi");
if (pp->msi_irq < 0) {
@ -541,7 +547,6 @@ void dw_pcie_setup_rc(struct pcie_port *pp)
/* Initialize IRQ Status array */
for (ctrl = 0; ctrl < num_ctrls; ctrl++) {
pp->irq_mask[ctrl] = ~0;
dw_pcie_writel_dbi(pci, PCIE_MSI_INTR0_MASK +
(ctrl * MSI_REG_CTRL_BLOCK_SIZE),
pp->irq_mask[ctrl]);