Commit 789d5258 authored by Sascha Hauer's avatar Sascha Hauer Committed by Russell King
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[ARM] 4996/1: <IMX UART>: do not enable tx empty interrupt on startup 



We are not interested in tranceiver empty interrupts until we actually
sent a buffer.

Signed-off-by: default avatarSascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: default avatarRussell King <rmk+kernel@arm.linux.org.uk>
parent 0d3c3938

drivers/serial/imx.c

+1 −1
Original line number Diff line number Diff line
@@ -536,7 +536,7 @@ static int imx_startup(struct uart_port *port) 
	writel(USR1_RTSD, sport->port.membase + USR1);



	temp = readl(sport->port.membase + UCR1);

	temp |= (UCR1_TXMPTYEN | UCR1_RRDYEN | UCR1_RTSDEN | UCR1_UARTEN);

	temp |= UCR1_RRDYEN | UCR1_RTSDEN | UCR1_UARTEN;

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



	temp = readl(sport->port.membase + UCR2);