summaryrefslogtreecommitdiff
path: root/drivers/pci/probe.c
diff options
context:
space:
mode:
authorMarc Zyngier <marc.zyngier@arm.com>2015-07-28 16:46:12 +0300
committerThomas Gleixner <tglx@linutronix.de>2015-07-30 01:14:37 +0300
commitb165e2b60b39888a7ff8efbc1de40137471dda41 (patch)
tree10d36e8c3aad9ca4270891760d3037692cd2ce3f /drivers/pci/probe.c
parent44aa0c657e3e45795a92addeb0dce7d28d9b0bd2 (diff)
downloadlinux-b165e2b60b39888a7ff8efbc1de40137471dda41.tar.xz
PCI/MSI: Add support for OF-provided msi_domain
In order to populate the PCI host bridge msi_domain, use the "msi-parent" attribute to lookup a corresponding irq domain. If found, this is our MSI domain. This gets plugged into the core PCI code. Acked-by: Bjorn Helgaas <bhelgaas@google.com> Signed-off-by: Marc Zyngier <marc.zyngier@arm.com> Cc: <linux-arm-kernel@lists.infradead.org> Cc: Yijing Wang <wangyijing@huawei.com> Cc: Ma Jun <majun258@huawei.com> Cc: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> Cc: Duc Dang <dhdang@apm.com> Cc: Hanjun Guo <hanjun.guo@linaro.org> Cc: Jiang Liu <jiang.liu@linux.intel.com> Cc: Jason Cooper <jason@lakedaemon.net> Link: http://lkml.kernel.org/r/1438091186-10244-6-git-send-email-marc.zyngier@arm.com Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'drivers/pci/probe.c')
-rw-r--r--drivers/pci/probe.c5
1 files changed, 4 insertions, 1 deletions
diff --git a/drivers/pci/probe.c b/drivers/pci/probe.c
index c03ecbffc50b..a7afeacce7f1 100644
--- a/drivers/pci/probe.c
+++ b/drivers/pci/probe.c
@@ -663,12 +663,15 @@ static void pci_set_bus_speed(struct pci_bus *bus)
static struct irq_domain *pci_host_bridge_msi_domain(struct pci_bus *bus)
{
+ struct irq_domain *d;
+
/*
* Any firmware interface that can resolve the msi_domain
* should be called from here.
*/
+ d = pci_host_bridge_of_msi_domain(bus);
- return NULL;
+ return d;
}
static void pci_set_bus_msi_domain(struct pci_bus *bus)