From: Manikanta Maddireddy <mmaddireddy@nvidia.com>
To: cyndis@kapsi.fi, thierry.reding@gmail.com, bhelgaas@google.com,
lorenzo.pieralisi@arm.com
Cc: jonathanh@nvidia.com, robh+dt@kernel.org, frowand.list@gmail.com,
rjw@rjwysocki.net, tglx@linutronix.de, vidyas@nvidia.com,
kthota@nvidia.com, linux-tegra@vger.kernel.org,
devicetree@vger.kernel.org, linux-pci@vger.kernel.org,
linux-pm@vger.kernel.org,
Manikanta Maddireddy <mmaddireddy@nvidia.com>
Subject: [PATCH V3 3/7] PCI: tegra: Remove PCI_REASSIGN_ALL_BUS flag for Tegra PCIe
Date: Fri, 1 Dec 2017 14:50:03 +0530 [thread overview]
Message-ID: <1512120007-28088-4-git-send-email-mmaddireddy@nvidia.com> (raw)
In-Reply-To: <1512120007-28088-1-git-send-email-mmaddireddy@nvidia.com>
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 <mmaddireddy@nvidia.com>
---
V3:
* new patch in V3
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 72a316940723..2a108c798846 100644
--- a/drivers/pci/host/pci-tegra.c
+++ b/drivers/pci/host/pci-tegra.c
@@ -2706,7 +2706,6 @@ 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;
--
2.1.4
next prev parent reply other threads:[~2017-12-01 9:20 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-12-01 9:20 [PATCH V3 0/7] Add loadable kernel module and power management support Manikanta Maddireddy
2017-12-01 9:20 ` [PATCH V3 1/7] of: Export of_pci_range_to_resource() Manikanta Maddireddy
2017-12-01 9:20 ` Manikanta Maddireddy [this message]
2017-12-01 9:20 ` [PATCH V3 6/7] PCI: tegra: Broadcast PME_Turn_Off message before link goes to L2 Manikanta Maddireddy
[not found] ` <1512120007-28088-1-git-send-email-mmaddireddy-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org>
2017-12-01 9:20 ` [PATCH V3 2/7] PCI: Export pci_find_host_bridge() Manikanta Maddireddy
[not found] ` <1512120007-28088-3-git-send-email-mmaddireddy-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org>
2017-12-05 20:04 ` Bjorn Helgaas
[not found] ` <20171205200402.GF23510-1RhO1Y9PlrlHTL0Zs8A6p5iNqAH0jzoTYJqu5kTmcBRl57MIdRCFDg@public.gmane.org>
2017-12-08 8:37 ` Manikanta Maddireddy
[not found] ` <aebabb88-d894-2b1f-d3e8-63a2acad9665-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org>
2017-12-08 14:38 ` Bjorn Helgaas
2017-12-01 9:20 ` [PATCH V3 4/7] PCI: tegra: Free resources on probe failure Manikanta Maddireddy
2017-12-01 9:20 ` [PATCH V3 5/7] PCI: tegra: Add loadable kernel module support Manikanta Maddireddy
2017-12-01 9:20 ` [PATCH V3 7/7] PCI: tegra: Add power management support Manikanta Maddireddy
2018-01-12 18:10 ` [PATCH V3 0/7] Add loadable kernel module and " Lorenzo Pieralisi
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