[PATCH v6 10/11] serial: 8250_lpss: enable MSI for Intel Quark
From: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Date: 2016-06-13 13:44:16
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Subsystem:
8250/16?50 (and clone uarts) serial driver, synopsys designware 8250 uart driver, the rest, tty layer and serial drivers · Maintainers:
Greg Kroah-Hartman, Ilpo Järvinen, Linus Torvalds, Jiri Slaby
Intel Quark SoC supports MSI for LPSS, in particular for UART. Enable MSI for Intel Quark. Signed-off-by: Andy Shevchenko <andriy.shevchenko@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 }
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2.8.1