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| author |   Jisheng Zhang <Jisheng.Zhang@synaptics.com> | 2020-10-09 15:54:36 +0800 |
|---|---|---|
| committer |   Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> | 2020-10-13 09:52:49 +0100 |
| commit | 742833249198bfd07944158eca50f740faf823f3 (patch) | |
| tree | 26b731d885ace738ac0a454f39d4e271da635884 /drivers/pci/controller | |
| parent | PCI: keystone: Remove iATU register mapping (diff) | |
| download | wireguard-linux-742833249198bfd07944158eca50f740faf823f3.tar.xz wireguard-linux-742833249198bfd07944158eca50f740faf823f3.zip | |
PCI: dwc: Skip PCIE_MSI_INTR0* programming if MSI is disabled
If MSI is disabled, there's no need to program PCIE_MSI_INTR0_MASK
and PCIE_MSI_INTR0_ENABLE registers.
Link: https://lore.kernel.org/r/20201009155436.27e67238@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>
Acked-by: Gustavo Pimentel <gustavo.pimentel@synopsys.com>
Diffstat (limited to 'drivers/pci/controller')
| -rw-r--r-- | drivers/pci/controller/dwc/pcie-designware-host.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/pci/controller/dwc/pcie-designware-host.c b/drivers/pci/controller/dwc/pcie-designware-host.c index 317ff512f8df..d3e9ea11ce9e 100644 --- a/drivers/pci/controller/dwc/pcie-designware-host.c +++ b/drivers/pci/controller/dwc/pcie-designware-host.c @@ -528,7 +528,7 @@ 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 */ |