Messages in this thread Patch in this message | | | Date | Thu, 24 Sep 2020 19:07:13 +0800 | From | Jisheng Zhang <> | Subject | [PATCH v2 4/5] PCI: dwc: Skip PCIE_MSI_INTR0* programming if MSI is disabled |
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If MSI is disabled, there's no need to program PCIE_MSI_INTR0_MASK and PCIE_MSI_INTR0_ENABLE registers.
Signed-off-by: Jisheng Zhang <Jisheng.Zhang@synaptics.com> --- drivers/pci/controller/dwc/pcie-designware-host.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/pci/controller/dwc/pcie-designware-host.c b/drivers/pci/controller/dwc/pcie-designware-host.c index d2de8bc5db91..7a8adf597803 100644 --- a/drivers/pci/controller/dwc/pcie-designware-host.c +++ b/drivers/pci/controller/dwc/pcie-designware-host.c @@ -641,7 +641,7 @@ void dw_pcie_setup_rc(struct pcie_port *pp) dw_pcie_setup(pci); - if (!pp->ops->msi_host_init) { + if (pci_msi_enabled() && !pp->ops->msi_host_init) { num_ctrls = pp->num_vectors / MAX_MSI_IRQS_PER_CTRL; /* Initialize IRQ Status array */ -- 2.28.0
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