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authorMinghuan Lian <Minghuan.Lian@freescale.com>2014-09-23 22:28:59 +0800
committerBjorn Helgaas <bhelgaas@google.com>2014-09-24 07:07:43 -0600
commit24832b4de315ad00e5430a53772750dfcf18514d (patch)
tree8942ed7d5e96510db2d8e7bcd69e1de73ebc6d96 /drivers/pci
parent450e344e421b9f555261a2d97952d9e71d4cb082 (diff)
downloadlinux-24832b4de315ad00e5430a53772750dfcf18514d.tar.bz2
PCI: designware: Add get_msi_data() to pcie_host_ops
Add a struct pcie_host_ops .get_msi_data() method for platforms to return their special MSI message data. Signed-off-by: Minghuan Lian <Minghuan.Lian@freescale.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Acked-by: Mohit KUMAR <mohit.kumar@st.com>
Diffstat (limited to 'drivers/pci')
-rw-r--r--drivers/pci/host/pcie-designware.c7
-rw-r--r--drivers/pci/host/pcie-designware.h1
2 files changed, 7 insertions, 1 deletions
diff --git a/drivers/pci/host/pcie-designware.c b/drivers/pci/host/pcie-designware.c
index 566658750201..34e736601259 100644
--- a/drivers/pci/host/pcie-designware.c
+++ b/drivers/pci/host/pcie-designware.c
@@ -366,7 +366,12 @@ static int dw_msi_setup_irq(struct msi_chip *chip, struct pci_dev *pdev,
else
msg.address_lo = virt_to_phys((void *)pp->msi_data);
msg.address_hi = 0x0;
- msg.data = pos;
+
+ if (pp->ops->get_msi_data)
+ msg.data = pp->ops->get_msi_data(pp, pos);
+ else
+ msg.data = pos;
+
write_msi_msg(irq, &msg);
return 0;
diff --git a/drivers/pci/host/pcie-designware.h b/drivers/pci/host/pcie-designware.h
index 904e40a3f32a..c6256751daff 100644
--- a/drivers/pci/host/pcie-designware.h
+++ b/drivers/pci/host/pcie-designware.h
@@ -71,6 +71,7 @@ struct pcie_host_ops {
void (*msi_set_irq)(struct pcie_port *pp, int irq);
void (*msi_clear_irq)(struct pcie_port *pp, int irq);
u32 (*get_msi_addr)(struct pcie_port *pp);
+ u32 (*get_msi_data)(struct pcie_port *pp, int pos);
void (*scan_bus)(struct pcie_port *pp);
int (*msi_host_init)(struct pcie_port *pp, struct msi_chip *chip);
};