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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>
This commit is contained in:
Minghuan Lian 2014-09-23 22:28:59 +08:00 committed by Bjorn Helgaas
parent 450e344e42
commit 24832b4de3
2 changed files with 7 additions and 1 deletions
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7
drivers/pci/host/pcie-designware.c
View File

@ -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;

1
drivers/pci/host/pcie-designware.h
View File

@ -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);
};