diff options
| author | Andy Shevchenko <andriy.shevchenko@linux.intel.com> | 2019-08-06 12:43:18 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-09-04 12:43:52 +0200 |
| commit | bf414f5520ef856f6026bcd39942704d7004f7f0 (patch) | |
| tree | f73cc5359bcf58e78fe584ff321f07f32d923e1a /drivers/tty/serial/8250 | |
| parent | 4d5675c3b10b7bfa56447c26c29930e35b6d41ee (diff) | |
| download | linux-bf414f5520ef856f6026bcd39942704d7004f7f0.tar.bz2 | |
serial: 8250_lpss: switch to use 8250_dwlib library
Since we have a common library module for Synopsys DesignWare UART,
let us use it.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Link: https://lore.kernel.org/r/20190806094322.64987-5-andriy.shevchenko@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/tty/serial/8250')
| -rw-r--r-- | drivers/tty/serial/8250/8250_lpss.c | 22 | ||||
| -rw-r--r-- | drivers/tty/serial/8250/Kconfig | 1 |
2 files changed, 14 insertions, 9 deletions
diff --git a/drivers/tty/serial/8250/8250_lpss.c b/drivers/tty/serial/8250/8250_lpss.c index d07e431110d9..3bf23770c188 100644 --- a/drivers/tty/serial/8250/8250_lpss.c +++ b/drivers/tty/serial/8250/8250_lpss.c @@ -14,7 +14,7 @@ #include <linux/dmaengine.h> #include <linux/dma/dw.h> -#include "8250.h" +#include "8250_dwlib.h" #define PCI_DEVICE_ID_INTEL_QRK_UARTx 0x0936 @@ -48,21 +48,25 @@ struct lpss8250_board { }; struct lpss8250 { - int line; + struct dw8250_port_data data; struct lpss8250_board *board; /* DMA parameters */ - struct uart_8250_dma dma; struct dw_dma_chip dma_chip; struct dw_dma_slave dma_param; u8 dma_maxburst; }; +static inline struct lpss8250 *to_lpss8250(struct dw8250_port_data *data) +{ + return container_of(data, struct lpss8250, data); +} + static void byt_set_termios(struct uart_port *p, struct ktermios *termios, struct ktermios *old) { unsigned int baud = tty_termios_baud_rate(termios); - struct lpss8250 *lpss = p->private_data; + struct lpss8250 *lpss = to_lpss8250(p->private_data); unsigned long fref = lpss->board->freq, fuart = baud * 16; unsigned long w = BIT(15) - 1; unsigned long m, n; @@ -163,7 +167,7 @@ static const struct dw_dma_platform_data qrk_serial_dma_pdata = { static void qrk_serial_setup_dma(struct lpss8250 *lpss, struct uart_port *port) { - struct uart_8250_dma *dma = &lpss->dma; + struct uart_8250_dma *dma = &lpss->data.dma; struct dw_dma_chip *chip = &lpss->dma_chip; struct dw_dma_slave *param = &lpss->dma_param; struct pci_dev *pdev = to_pci_dev(port->dev); @@ -247,7 +251,7 @@ static bool lpss8250_dma_filter(struct dma_chan *chan, void *param) static int lpss8250_dma_setup(struct lpss8250 *lpss, struct uart_8250_port *port) { - struct uart_8250_dma *dma = &lpss->dma; + struct uart_8250_dma *dma = &lpss->data.dma; struct dw_dma_slave *rx_param, *tx_param; struct device *dev = port->port.dev; @@ -296,7 +300,7 @@ static int lpss8250_probe(struct pci_dev *pdev, const struct pci_device_id *id) uart.port.dev = &pdev->dev; uart.port.irq = pdev->irq; - uart.port.private_data = lpss; + uart.port.private_data = &lpss->data; uart.port.type = PORT_16550A; uart.port.iotype = UPIO_MEM; uart.port.regshift = 2; @@ -320,7 +324,7 @@ static int lpss8250_probe(struct pci_dev *pdev, const struct pci_device_id *id) if (ret < 0) goto err_exit; - lpss->line = ret; + lpss->data.line = ret; pci_set_drvdata(pdev, lpss); return 0; @@ -335,7 +339,7 @@ static void lpss8250_remove(struct pci_dev *pdev) { struct lpss8250 *lpss = pci_get_drvdata(pdev); - serial8250_unregister_port(lpss->line); + serial8250_unregister_port(lpss->data.line); if (lpss->board->exit) lpss->board->exit(lpss); diff --git a/drivers/tty/serial/8250/Kconfig b/drivers/tty/serial/8250/Kconfig index 90abf97b378d..ff5d142bbd70 100644 --- a/drivers/tty/serial/8250/Kconfig +++ b/drivers/tty/serial/8250/Kconfig @@ -444,6 +444,7 @@ config SERIAL_8250_LPSS default SERIAL_8250 depends on SERIAL_8250 && PCI depends on X86 || COMPILE_TEST + select SERIAL_8250_DWLIB select DW_DMAC_CORE if SERIAL_8250_DMA select DW_DMAC_PCI if (SERIAL_8250_DMA && X86_INTEL_LPSS) select RATIONAL |