[PATCH v2 1/3] tty: serial: imx: disable ageing timer interrupt if dma in use

[Troy Kisky]

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 at boundarydevices.com>

---
v2: split into a series of 2 patches
---
 drivers/tty/serial/imx.c | 4 ----
 1 file changed, 4 deletions(-)

diff --git a/drivers/tty/serial/imx.c b/drivers/tty/serial/imx.c
index dfeff3951f93..bf47b15df2e8 100644
--- a/drivers/tty/serial/imx.c
+++ b/drivers/tty/serial/imx.c
@@ -1207,10 +1207,6 @@ 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;
-- 
2.11.0