It is really useful not only for debugging to have an DMA IRQ line and pool being mapped to the corresponding IP by using its instance ID. Provide PCI device and function as instance ID for Intel Quark UART DMA. Signed-off-by: Andy Shevchenko <andriy.shevchenko@xxxxxxxxxxxxxxx> --- drivers/tty/serial/8250/8250_lpss.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/tty/serial/8250/8250_lpss.c b/drivers/tty/serial/8250/8250_lpss.c index 0c6aa990db3d..2bb30e688433 100644 --- a/drivers/tty/serial/8250/8250_lpss.c +++ b/drivers/tty/serial/8250/8250_lpss.c @@ -170,6 +170,7 @@ static void qrk_serial_setup_dma(struct lpss8250 *lpss, struct uart_port *port) chip->pdata = &qrk_serial_dma_pdata; chip->dev = &pdev->dev; + chip->id = pdev->devfn; chip->irq = pci_irq_vector(pdev, 0); chip->regs = pci_ioremap_bar(pdev, 1); if (!chip->regs) -- 2.20.1
