Commit 52108109 authored by Troy Kisky's avatar Troy Kisky Committed by Greg Kroah-Hartman
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tty: serial: imx: disable ageing timer interrupt if dma in use 



Since commit 4dec2f11 ("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: default avatarTroy Kisky <troy.kisky@boundarydevices.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent b86f86e8

drivers/tty/serial/imx.c

+0 −4
Original line number Original line Diff line number Diff line
@@ -1208,10 +1208,6 @@ static void imx_enable_dma(struct imx_port *sport) 
	temp |= UCR1_RDMAEN | UCR1_TDMAEN | UCR1_ATDMAEN;

	temp |= UCR1_RDMAEN | UCR1_TDMAEN | UCR1_ATDMAEN;

	writel(temp, sport->port.membase + UCR1);

	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);

	imx_setup_ufcr(sport, TXTL_DMA, RXTL_DMA);





	sport->dma_is_enabled = 1;

	sport->dma_is_enabled = 1;

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