From 42afa627c338e22bbde06c95bd7b46f960c91f79 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Uwe=20Kleine-K=C3=B6nig?= Date: Sun, 18 Feb 2018 22:02:46 +0100 Subject: serial: imx: drop check for enabled dma in .startup MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit imx_shutdown() calls imx_disable_dma if .dma_is_enabled. So after imx_shudown() completes, .dma_is_enabled is zero. For this reason .dma_is_enabled is also zero when imx_startup() is called. So the check for this variable being zero can be dropped. Signed-off-by: Uwe Kleine-König Reviewed-by: Shawn Guo Signed-off-by: Greg Kroah-Hartman --- drivers/tty/serial/imx.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/tty/serial/imx.c b/drivers/tty/serial/imx.c index c60ce00..689a117 100644 --- a/drivers/tty/serial/imx.c +++ b/drivers/tty/serial/imx.c @@ -1257,7 +1257,7 @@ static int imx_startup(struct uart_port *port) writel(USR1_RTSD | USR1_DTRD, sport->port.membase + USR1); writel(USR2_ORE, sport->port.membase + USR2); - if (dma_is_inited && !sport->dma_is_enabled) + if (dma_is_inited) imx_enable_dma(sport); temp = readl(sport->port.membase + UCR1) & ~UCR1_RRDYEN; -- cgit v1.1