Commit 74283324 authored by Jisheng Zhang's avatar Jisheng Zhang Committed by Lorenzo Pieralisi
Browse files

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: default avatarJisheng Zhang <Jisheng.Zhang@synaptics.com>
Signed-off-by: default avatarLorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Reviewed-by: default avatarRob Herring <robh@kernel.org>
Acked-by: default avatarGustavo Pimentel <gustavo.pimentel@synopsys.com>
parent b101a398

drivers/pci/controller/dwc/pcie-designware-host.c

+1 −1
Original line number Diff line number Diff line
@@ -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 */