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

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Commit-ID:  8dd26dc8fecab05aa92cd7f109f691c1283c5a13
Gitweb:     http://git.kernel.org/tip/8dd26dc8fecab05aa92cd7f109f691c1283c5a13
Author:     Yijing Wang <wangyijing@xxxxxxxxxx>
AuthorDate: Tue, 11 Nov 2014 15:45:31 -0700
Committer:  Bjorn Helgaas <bhelgaas@xxxxxxxxxx>
CommitDate: Fri, 21 Nov 2014 09:34:23 -0700

PCI: xilinx: 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 xilinx_pcie_msi_chip, not xilinx_pcie_msi_controller]
Signed-off-by: Yijing Wang <wangyijing@xxxxxxxxxx>
Signed-off-by: Bjorn Helgaas <bhelgaas@xxxxxxxxxx>---
 drivers/pci/host/pcie-xilinx.c | 20 +++++---------------
 1 file changed, 5 insertions(+), 15 deletions(-)

diff --git a/drivers/pci/host/pcie-xilinx.c b/drivers/pci/host/pcie-xilinx.c
index f41bc60..eca2923 100644
--- a/drivers/pci/host/pcie-xilinx.c
+++ b/drivers/pci/host/pcie-xilinx.c
@@ -432,20 +432,6 @@ static void xilinx_pcie_enable_msi(struct xilinx_pcie_port *port)
 	pcie_write(port, msg_addr, XILINX_PCIE_REG_MSIBASE2);
 }
 
-/**
- * xilinx_pcie_add_bus - Add MSI chip info to PCIe bus
- * @bus: PCIe bus
- */
-static void xilinx_pcie_add_bus(struct pci_bus *bus)
-{
-	if (IS_ENABLED(CONFIG_PCI_MSI)) {
-		struct xilinx_pcie_port *port = sys_to_pcie(bus->sysdata);
-
-		xilinx_pcie_msi_chip.dev = port->dev;
-		bus->msi = &xilinx_pcie_msi_chip;
-	}
-}
-
 /* INTx Functions */
 
 /**
@@ -925,10 +911,14 @@ static int xilinx_pcie_probe(struct platform_device *pdev)
 		.private_data	= (void **)&port,
 		.setup		= xilinx_pcie_setup,
 		.map_irq	= of_irq_parse_and_map_pci,
-		.add_bus	= xilinx_pcie_add_bus,
 		.scan		= xilinx_pcie_scan_bus,
 		.ops		= &xilinx_pcie_ops,
 	};
+
+#ifdef CONFIG_PCI_MSI
+	xilinx_pcie_msi_chip.dev = port->dev;
+	hw.msi_ctrl = &xilinx_pcie_msi_chip;
+#endif
 	pci_common_init_dev(dev, &hw);
 
 	return 0;
--
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