[tip:irq/irqdomain] PCI: tegra: Save MSI controller in pci_sys_data

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Commit-ID:  7ec725b2d5757754bd8bc5fd13d5f8c53d44ce80
Gitweb:     http://git.kernel.org/tip/7ec725b2d5757754bd8bc5fd13d5f8c53d44ce80
Author:     Yijing Wang <wangyijing@xxxxxxxxxx>
AuthorDate: Tue, 11 Nov 2014 15:35:05 -0700
Committer:  Bjorn Helgaas <bhelgaas@xxxxxxxxxx>
CommitDate: Fri, 21 Nov 2014 09:33:45 -0700

PCI: tegra: Save MSI controller in pci_sys_data

Save MSI controller in pci_sys_data instead of assigning MSI controller
pointer to every PCI bus in .add_bus().

[bhelgaas: use struct tegra_msi.chip, not ctrl]
Signed-off-by: Yijing Wang <wangyijing@xxxxxxxxxx>
Signed-off-by: Bjorn Helgaas <bhelgaas@xxxxxxxxxx>---
 drivers/pci/host/pci-tegra.c | 14 ++++----------
 1 file changed, 4 insertions(+), 10 deletions(-)

diff --git a/drivers/pci/host/pci-tegra.c b/drivers/pci/host/pci-tegra.c
index 5529de7..1f01faa 100644
--- a/drivers/pci/host/pci-tegra.c
+++ b/drivers/pci/host/pci-tegra.c
@@ -694,15 +694,6 @@ static int tegra_pcie_map_irq(const struct pci_dev *pdev, u8 slot, u8 pin)
 	return irq;
 }
 
-static void tegra_pcie_add_bus(struct pci_bus *bus)
-{
-	if (IS_ENABLED(CONFIG_PCI_MSI)) {
-		struct tegra_pcie *pcie = sys_to_pcie(bus->sysdata);
-
-		bus->msi = &pcie->msi.chip;
-	}
-}
-
 static struct pci_bus *tegra_pcie_scan_bus(int nr, struct pci_sys_data *sys)
 {
 	struct tegra_pcie *pcie = sys_to_pcie(sys);
@@ -1882,11 +1873,14 @@ static int tegra_pcie_enable(struct tegra_pcie *pcie)
 
 	memset(&hw, 0, sizeof(hw));
 
+#ifdef CONFIG_PCI_MSI
+	hw.msi_ctrl = &pcie->msi.chip;
+#endif
+
 	hw.nr_controllers = 1;
 	hw.private_data = (void **)&pcie;
 	hw.setup = tegra_pcie_setup;
 	hw.map_irq = tegra_pcie_map_irq;
-	hw.add_bus = tegra_pcie_add_bus;
 	hw.scan = tegra_pcie_scan_bus;
 	hw.ops = &tegra_pcie_ops;
 
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