[PATCH V4 3/7] PCI: tegra: Remove PCI_REASSIGN_ALL_BUS flag for Tegra PCIe
From: Manikanta Maddireddy <hidden>
Date: 2017-12-08 08:58:09
Also in:
linux-pci, linux-pm, linux-tegra
Subsystem:
pci subsystem, the rest · Maintainers:
Bjorn Helgaas, Linus Torvalds
Possibly related (same subject, not in this thread)
- 2018-01-03 · Re: [PATCH V4 3/7] PCI: tegra: Remove PCI_REASSIGN_ALL_BUS flag for Tegra PCIe · Manikanta Maddireddy <hidden>
- 2018-01-03 · Re: [PATCH V4 3/7] PCI: tegra: Remove PCI_REASSIGN_ALL_BUS flag for Tegra PCIe · Lorenzo Pieralisi <hidden>
- 2017-12-21 · Re: [PATCH V4 3/7] PCI: tegra: Remove PCI_REASSIGN_ALL_BUS flag for Tegra PCIe · Lorenzo Pieralisi <hidden>
- 2017-12-20 · Re: [PATCH V4 3/7] PCI: tegra: Remove PCI_REASSIGN_ALL_BUS flag for Tegra PCIe · Thierry Reding <hidden>
- 2017-12-15 · Re: [PATCH V4 3/7] PCI: tegra: Remove PCI_REASSIGN_ALL_BUS flag for Tegra PCIe · Lorenzo Pieralisi <hidden>
Primary, secondary and subordinate default bus numbers are 0 in Tegra and it is expecting SW to program these numbers in configration space. pci_scan_bridge_extend() function programs these numbers in configuration space if secondary & subordinate bus numbers are 0 or PCI_REASSIGN_ALL_BUS flag is set. Since secondary & subordinate default bus numbers are 0, PCI_REASSIGN_ALL_BUS flag can be removed for Tegra PCIe. Signed-off-by: Manikanta Maddireddy <redacted> --- V3: * new patch in V3 V4: * no change in this patch drivers/pci/host/pci-tegra.c | 1 - 1 file changed, 1 deletion(-)
diff --git a/drivers/pci/host/pci-tegra.c b/drivers/pci/host/pci-tegra.c
index a549c5899e26..0d91f1a3a6b4 100644
--- a/drivers/pci/host/pci-tegra.c
+++ b/drivers/pci/host/pci-tegra.c@@ -2604,7 +2604,6 @@ static int tegra_pcie_probe(struct platform_device *pdev) tegra_pcie_enable_ports(pcie); - pci_add_flags(PCI_REASSIGN_ALL_BUS); host->busnr = pcie->busn.start; host->dev.parent = &pdev->dev; host->ops = &tegra_pcie_ops;
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2.1.4