Use pci_alloc_irq_vectors to enable MSI when available. At least the
XR17V352 supports this.
Signed-off-by: Jan Kiszka <jan.kiszka@xxxxxxxxxxx>
Reviewed-by: Andy Shevchenko <andy.shevchenko@xxxxxxxxx>
---
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 f612da3..b89c4ff 100644
--- a/drivers/tty/serial/8250/8250_exar.c
+++ b/drivers/tty/serial/8250/8250_exar.c
@@ -283,10 +283,16 @@ 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
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