[PATCH v2 2/3] PCI: designware: Add get_msi_data to pcie_host_ops

[Minghuan Lian]

The patch adds get_msi_data for some platforms to return their
special MSI message data.

Signed-off-by: Minghuan Lian <Minghuan.Lian at freescale.com>
---
Change log:
v2: no change just derived from v1

 drivers/pci/host/pcie-designware.c | 6 +++++-
 drivers/pci/host/pcie-designware.h | 1 +
 2 files changed, 6 insertions(+), 1 deletion(-)

diff --git a/drivers/pci/host/pcie-designware.c b/drivers/pci/host/pcie-designware.c
index 1d37bed..eae4917 100644
--- a/drivers/pci/host/pcie-designware.c
+++ b/drivers/pci/host/pcie-designware.c
@@ -366,7 +366,11 @@ 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);
 
diff --git a/drivers/pci/host/pcie-designware.h b/drivers/pci/host/pcie-designware.h
index 8be2b33..c8ec879 100644
--- a/drivers/pci/host/pcie-designware.h
+++ b/drivers/pci/host/pcie-designware.h
@@ -75,6 +75,7 @@ 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);
 };
-- 
1.9.1