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| author | Andrey Smirnov <andrew.smirnov@gmail.com> | 2019-07-29 22:52:20 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-09-04 13:43:48 +0300 |
| commit | 769d55c523f7ba572d7e7aefa17106e5deff66e0 (patch) | |
| tree | 02ad9d8c511858eca9c7ea0e64fd306113710f19 /drivers | |
| parent | 8a9b82422ff5b8d4a7dffacd82208b083363b56c (diff) | |
| download | linux-769d55c523f7ba572d7e7aefa17106e5deff66e0.tar.xz | |
tty: serial: fsl_lpuart: Introduce lpuart_dma_shutdown()
Last steps of .shutdown() code are identical for lpuart and lpuart32
cases, so move it all into a standalone subroutine.
Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Cc: Stefan Agner <stefan@agner.ch>
Cc: Bhuvanchandra DV <bhuvanchandra.dv@toradex.com>
Cc: Chris Healy <cphealy@gmail.com>
Cc: Cory Tusar <cory.tusar@zii.aero>
Cc: Lucas Stach <l.stach@pengutronix.de>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Jiri Slaby <jslaby@suse.com>
Cc: linux-imx@nxp.com
Cc: linux-serial@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Link: https://lore.kernel.org/r/20190729195226.8862-19-andrew.smirnov@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/tty/serial/fsl_lpuart.c | 42 |
1 files changed, 18 insertions, 24 deletions
diff --git a/drivers/tty/serial/fsl_lpuart.c b/drivers/tty/serial/fsl_lpuart.c index 2597a877d639..8cf10d12947f 100644 --- a/drivers/tty/serial/fsl_lpuart.c +++ b/drivers/tty/serial/fsl_lpuart.c @@ -1547,6 +1547,22 @@ static int lpuart32_startup(struct uart_port *port) return 0; } +static void lpuart_dma_shutdown(struct lpuart_port *sport) +{ + if (sport->lpuart_dma_rx_use) { + del_timer_sync(&sport->lpuart_timer); + lpuart_dma_rx_free(&sport->port); + } + + if (sport->lpuart_dma_tx_use) { + if (wait_event_interruptible(sport->dma_wait, + !sport->dma_tx_in_progress) != false) { + sport->dma_tx_in_progress = false; + dmaengine_terminate_all(sport->dma_tx_chan); + } + } +} + static void lpuart_shutdown(struct uart_port *port) { struct lpuart_port *sport = container_of(port, struct lpuart_port, port); @@ -1563,18 +1579,7 @@ static void lpuart_shutdown(struct uart_port *port) spin_unlock_irqrestore(&port->lock, flags); - if (sport->lpuart_dma_rx_use) { - del_timer_sync(&sport->lpuart_timer); - lpuart_dma_rx_free(&sport->port); - } - - if (sport->lpuart_dma_tx_use) { - if (wait_event_interruptible(sport->dma_wait, - !sport->dma_tx_in_progress) != false) { - sport->dma_tx_in_progress = false; - dmaengine_terminate_all(sport->dma_tx_chan); - } - } + lpuart_dma_shutdown(sport); } static void lpuart32_shutdown(struct uart_port *port) @@ -1594,18 +1599,7 @@ static void lpuart32_shutdown(struct uart_port *port) spin_unlock_irqrestore(&port->lock, flags); - if (sport->lpuart_dma_rx_use) { - del_timer_sync(&sport->lpuart_timer); - lpuart_dma_rx_free(&sport->port); - } - - if (sport->lpuart_dma_tx_use) { - if (wait_event_interruptible(sport->dma_wait, - !sport->dma_tx_in_progress)) { - sport->dma_tx_in_progress = false; - dmaengine_terminate_all(sport->dma_tx_chan); - } - } + lpuart_dma_shutdown(sport); } static void |