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authorLorenzo Pieralisi <lorenzo.pieralisi@arm.com>2015-07-29 12:33:18 +0100
committerBjorn Helgaas <bhelgaas@google.com>2015-08-20 12:02:50 -0500
commit8953aab1e80fd299d6185a57edaff733fa5c6a55 (patch)
tree8ed339530355c4f6465700d0828f2cacdef5f3c2 /arch/arm/kernel
parentd2a7926d42b3b46e45b4e44dc3302b2701ec0856 (diff)
ARM/PCI, designware, xilinx: Use pci_scan_root_bus_msi()
ARM previously stored the msi_controller pointer in its sysdata, struct pci_sys_data, and implemented pcibios_msi_controller() to retrieve it. That made PCI host controller drivers specific to ARM because they had to put the msi_controller pointer in the ARM-specific pci_sys_data. There is now a generic mechanism, pci_scan_root_bus_msi(), for giving the msi_controller pointer to the PCI core. Use this for all ARM systems and for the DesignWare and Xilinx PCI host controller drivers. This removes an ARM dependency from the DesignWare, DRA7xx, EXYNOS, i.MX6, Keystone, Layerscape, SPEAr13xx, and Xilinx drivers. [bhelgaas: changelog, split into separate patch] Suggested-by: Russell King <linux@arm.linux.org.uk> Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Acked-by: Jingoo Han <jingoohan1@gmail.com> CC: Pratyush Anand <pratyush.anand@gmail.com> CC: Arnd Bergmann <arnd@arndb.de> CC: Simon Horman <horms@verge.net.au> CC: Russell King <linux@arm.linux.org.uk> CC: Thomas Petazzoni <thomas.petazzoni@free-electrons.com> CC: Thierry Reding <thierry.reding@gmail.com> CC: Michal Simek <michal.simek@xilinx.com> CC: Marc Zyngier <marc.zyngier@arm.com>
Diffstat (limited to 'arch/arm/kernel')
-rw-r--r--arch/arm/kernel/bios32.c5
1 files changed, 3 insertions, 2 deletions
diff --git a/arch/arm/kernel/bios32.c b/arch/arm/kernel/bios32.c
index 4e95260efb39..283bc1c7b502 100644
--- a/arch/arm/kernel/bios32.c
+++ b/arch/arm/kernel/bios32.c
@@ -486,8 +486,9 @@ static void pcibios_init_hw(struct device *parent, struct hw_pci *hw,
if (hw->scan)
sys->bus = hw->scan(nr, sys);
else
- sys->bus = pci_scan_root_bus(parent, sys->busnr,
- hw->ops, sys, &sys->resources);
+ sys->bus = pci_scan_root_bus_msi(parent,
+ sys->busnr, hw->ops, sys,
+ &sys->resources, hw->msi_ctrl);
if (WARN(!sys->bus, "PCI: unable to scan bus!")) {
kfree(sys);