On Tue, Feb 7, 2017 at 6:10 PM, Jan Kiszka <jan.kiszka@xxxxxxxxxxx> wrote:
> Use pci_alloc_irq_vectors to enable MSI when available. At least the
> XR17V352 supports this.
>
FWIW:
Reviewed-by: Andy Shevchenko <andy.shevchenko@xxxxxxxxx>
> Signed-off-by: Jan Kiszka <jan.kiszka@xxxxxxxxxxx>
> ---
> drivers/tty/serial/8250/8250_exar.c | 8 +++++++-
> 1 file changed, 7 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/tty/serial/8250/8250_exar.c b/drivers/tty/serial/8250/8250_exar.c
> index 13cc1da..236de60 100644
> --- a/drivers/tty/serial/8250/8250_exar.c
> +++ b/drivers/tty/serial/8250/8250_exar.c
> @@ -284,10 +284,16 @@ exar_pci_probe(struct pci_dev *pcidev, const struct pci_device_id *ent)
>
> priv->board = board;
>
> + pci_set_master(pcidev);
> +
> + rc = pci_alloc_irq_vectors(pcidev, 1, 1, PCI_IRQ_ALL_TYPES);
> + if (rc < 0)
> + return rc;
> +
> memset(&uart, 0, sizeof(uart));
> uart.port.flags = UPF_SKIP_TEST | UPF_BOOT_AUTOCONF | UPF_SHARE_IRQ
> | UPF_EXAR_EFR;
> - uart.port.irq = pcidev->irq;
> + uart.port.irq = pci_irq_vector(pcidev, 0);
> uart.port.dev = &pcidev->dev;
>
> for (i = 0; i < nr_ports && i < maxnr; i++) {
> --
> 2.1.4
>
--
With Best Regards,
Andy Shevchenko
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