[+cc Mohit, Jingoo]
On Tue, Sep 23, 2014 at 10:28:59PM +0800, Minghuan Lian wrote:
> The patch adds get_msi_data() for some platforms to return their
> special MSI message data.
>
> Signed-off-by: Minghuan Lian <Minghuan.Lian@xxxxxxxxxxxxx>
> ---
> Change log:
> v3: no change
> v2: no change just derived from v1
>
> drivers/pci/host/pcie-designware.c | 7 ++++++-
> drivers/pci/host/pcie-designware.h | 1 +
> 2 files changed, 7 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/pci/host/pcie-designware.c b/drivers/pci/host/pcie-designware.c
> index 1c09f814..c28ca05 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 904e40a..c625675 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);
> };
> --
> 1.9.1
>
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