[PATCH v4 10/11] serial: 8250_lpss: enable MSI for Intel Quark

[Andy Shevchenko]

Intel Quark SoC supports MSI for LPSS, in particular for UART. Enable MSI for
Intel Quark.

Signed-off-by: Andy Shevchenko <andriy.shevche...@linux.intel.com>
---
 drivers/tty/serial/8250/8250_lpss.c | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/drivers/tty/serial/8250/8250_lpss.c 
b/drivers/tty/serial/8250/8250_lpss.c
index 3beb3aa..c83fd51 100644
--- a/drivers/tty/serial/8250/8250_lpss.c
+++ b/drivers/tty/serial/8250/8250_lpss.c
@@ -150,6 +150,17 @@ static int byt_serial_setup(struct lpss8250 *lpss, struct 
uart_port *port)
        return 0;
 }
 
+static int qrk_serial_setup(struct lpss8250 *lpss, struct uart_port *port)
+{
+       struct pci_dev *pdev = to_pci_dev(port->dev);
+
+       pci_enable_msi(pdev);
+
+       port->irq = pdev->irq;
+
+       return 0;
+}
+
 static bool lpss8250_dma_filter(struct dma_chan *chan, void *param)
 {
        struct dw_dma_slave *dws = param;
@@ -260,6 +271,7 @@ static const struct lpss8250_board byt_board = {
 static const struct lpss8250_board qrk_board = {
        .freq = 44236800,
        .base_baud = 2764800,
+       .setup = qrk_serial_setup,
 };
 
 #define LPSS_DEVICE(id, board) { PCI_VDEVICE(INTEL, id), 
(kernel_ulong_t)&board }
-- 
2.8.1