diff options
Diffstat (limited to 'drivers/tty/serial/8250/8250_lpss.c')
| -rw-r--r-- | drivers/tty/serial/8250/8250_lpss.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/drivers/tty/serial/8250/8250_lpss.c b/drivers/tty/serial/8250/8250_lpss.c index 071f8781c65b..f3cf4e8a5086 100644 --- a/drivers/tty/serial/8250/8250_lpss.c +++ b/drivers/tty/serial/8250/8250_lpss.c @@ -19,6 +19,8 @@ #include "8250.h" +#define PCI_DEVICE_ID_INTEL_QRK_UARTx 0x0936 + #define PCI_DEVICE_ID_INTEL_BYT_UART1 0x0f0a #define PCI_DEVICE_ID_INTEL_BYT_UART2 0x0f0c @@ -166,6 +168,9 @@ static int lpss8250_dma_setup(struct lpss8250 *lpss, struct uart_8250_port *port struct dw_dma_slave *rx_param, *tx_param; struct device *dev = port->port.dev; + if (!lpss->dma_param.dma_dev) + return 0; + rx_param = devm_kzalloc(dev, sizeof(*rx_param), GFP_KERNEL); if (!rx_param) return -ENOMEM; @@ -253,9 +258,15 @@ static const struct lpss8250_board byt_board = { .setup = byt_serial_setup, }; +static const struct lpss8250_board qrk_board = { + .freq = 44236800, + .base_baud = 2764800, +}; + #define LPSS_DEVICE(id, board) { PCI_VDEVICE(INTEL, id), (kernel_ulong_t)&board } static const struct pci_device_id pci_ids[] = { + LPSS_DEVICE(PCI_DEVICE_ID_INTEL_QRK_UARTx, qrk_board), LPSS_DEVICE(PCI_DEVICE_ID_INTEL_BYT_UART1, byt_board), LPSS_DEVICE(PCI_DEVICE_ID_INTEL_BYT_UART2, byt_board), LPSS_DEVICE(PCI_DEVICE_ID_INTEL_BSW_UART1, byt_board), |