[PATCH v2 3/6] serial: imx: remove CTSC and CTS handling
From: Romain Perier <hidden>
Date: 2017-07-05 13:07:49
Also in:
linux-serial, lkml
Subsystem:
the rest, tty layer and serial drivers · Maintainers:
Linus Torvalds, Greg Kroah-Hartman, Jiri Slaby
From: Nandor Han <redacted> CTSC and CTS are not related to DMA and might add disruption in some cases. Signed-off-by: Romain Perier <redacted> --- drivers/tty/serial/imx.c | 5 ----- 1 file changed, 5 deletions(-)
diff --git a/drivers/tty/serial/imx.c b/drivers/tty/serial/imx.c
index 5291b86..dd3ebb4 100644
--- a/drivers/tty/serial/imx.c
+++ b/drivers/tty/serial/imx.c@@ -1249,11 +1249,6 @@ static void imx_disable_dma(struct imx_port *sport) imx_stop_rx_dma(sport); imx_stop_tx_dma(sport); - /* clear UCR2 */ - temp = readl(sport->port.membase + UCR2); - temp &= ~(UCR2_CTSC | UCR2_CTS | UCR2_ATEN); - writel(temp, sport->port.membase + UCR2); - imx_setup_ufcr(sport, TXTL_DEFAULT, RXTL_DEFAULT); sport->dma_is_enabled = 0;
--
1.8.3.1