From mboxrd@z Thu Jan 1 00:00:00 1970 From: Andy Shevchenko Subject: [PATCH v10 10/11] serial: 8250_lpss: enable MSI for Intel Quark Date: Fri, 12 Aug 2016 19:01:55 +0300 Message-ID: <1471017716-44893-11-git-send-email-andriy.shevchenko@linux.intel.com> References: <1471017716-44893-1-git-send-email-andriy.shevchenko@linux.intel.com> Return-path: In-Reply-To: <1471017716-44893-1-git-send-email-andriy.shevchenko@linux.intel.com> Sender: linux-kernel-owner@vger.kernel.org To: Bryan O'Donoghue , Peter Hurley , linux-serial@vger.kernel.org, Vinod Koul , linux-kernel@vger.kernel.org, dmaengine@vger.kernel.org, Greg Kroah-Hartman , ismo.puustinen@intel.com, Heikki Krogerus , Eugeniy Paltsev Cc: Andy Shevchenko List-Id: linux-serial@vger.kernel.org Intel Quark SoC supports MSI for LPSS, in particular for UART. Enable MSI for Intel Quark. Signed-off-by: Andy Shevchenko --- 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 cad96ee..5ac291c 100644 --- a/drivers/tty/serial/8250/8250_lpss.c +++ b/drivers/tty/serial/8250/8250_lpss.c @@ -151,6 +151,17 @@ 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; @@ -261,6 +272,7 @@ 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