[PATCH v7 1/2] PCI: dwc: Skip PCIE_MSI_INTR0* programming if MSI is disabled

[Jisheng Zhang]

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.zh...@synaptics.com>
Reviewed-by: Rob Herring <r...@kernel.org>
Acked-by: Gustavo Pimentel <gustavo.pimen...@synopsys.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 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 */
-- 
2.28.0