Commit 43537cf7 authored by Om Prakash Singh's avatar Om Prakash Singh Committed by Lorenzo Pieralisi
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PCI: tegra194: Fix MSI-X programming 

Lower order MSI-X address is programmed in MSIX_ADDR_MATCH_HIGH_OFF
DBI register instead of higher order address. This patch fixes this
programming mistake.

Link: https://lore.kernel.org/r/20210623100525.19944-3-omp@nvidia.com


Signed-off-by: default avatarOm Prakash Singh <omp@nvidia.com>
Signed-off-by: default avatarLorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Reviewed-by: default avatarBjorn Helgaas <bhelgaas@google.com>
Acked-by: default avatarVidya Sagar <vidyas@nvidia.com>
parent ceb1412c

drivers/pci/controller/dwc/pcie-tegra194.c

+1 −1
Original line number Diff line number Diff line
@@ -1763,7 +1763,7 @@ static void pex_ep_event_pex_rst_deassert(struct tegra_pcie_dw *pcie) 
	val = (ep->msi_mem_phys & MSIX_ADDR_MATCH_LOW_OFF_MASK);

	val |= MSIX_ADDR_MATCH_LOW_OFF_EN;

	dw_pcie_writel_dbi(pci, MSIX_ADDR_MATCH_LOW_OFF, val);

	val = (lower_32_bits(ep->msi_mem_phys) & MSIX_ADDR_MATCH_HIGH_OFF_MASK);

	val = (upper_32_bits(ep->msi_mem_phys) & MSIX_ADDR_MATCH_HIGH_OFF_MASK);

	dw_pcie_writel_dbi(pci, MSIX_ADDR_MATCH_HIGH_OFF, val);



	ret = dw_pcie_ep_init_complete(ep);