diff options
| author | Troy Kisky <troy.kisky@boundarydevices.com> | 2017-10-20 23:20:19 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2017-11-04 12:38:49 +0100 |
| commit | 52108109fa125ffb11df178e1ac5eb9650f0743d (patch) | |
| tree | d02c11327ea7130bd8a21fe5703bf1be7e86d85b /drivers/tty | |
| parent | serial: 8250: fix potential deadlock in rs485-mode (diff) | |
| download | linux-52108109fa125ffb11df178e1ac5eb9650f0743d.tar.xz linux-52108109fa125ffb11df178e1ac5eb9650f0743d.zip | |
tty: serial: imx: disable ageing timer interrupt if dma in use
Since commit 4dec2f119e86 ("imx-serial: RX DMA startup latency")
the interrupt routine no longer will start rx dma.
So, we no longer need to enable this interrupt to start dma.
Signed-off-by: Troy Kisky <troy.kisky@boundarydevices.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/tty')
| -rw-r--r-- | drivers/tty/serial/imx.c | 4 |
1 files changed, 0 insertions, 4 deletions
diff --git a/drivers/tty/serial/imx.c b/drivers/tty/serial/imx.c index 2d042c60d2fa..bf3e981e26a2 100644 --- a/drivers/tty/serial/imx.c +++ b/drivers/tty/serial/imx.c @@ -1208,10 +1208,6 @@ static void imx_enable_dma(struct imx_port *sport) temp |= UCR1_RDMAEN | UCR1_TDMAEN | UCR1_ATDMAEN; writel(temp, sport->port.membase + UCR1); - temp = readl(sport->port.membase + UCR2); - temp |= UCR2_ATEN; - writel(temp, sport->port.membase + UCR2); - imx_setup_ufcr(sport, TXTL_DMA, RXTL_DMA); sport->dma_is_enabled = 1; |