The driver doesn't handle this interrupt, so it should be disabled
to avoid IRQ storms. This IRQ is only available if the UART is in
DTE mode.
Signed-off-by: Lucas Stach <l.stach@xxxxxxxxxxxxxx>
---
drivers/tty/serial/imx.c | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/drivers/tty/serial/imx.c b/drivers/tty/serial/imx.c
index 0df2b1c091ae..9d2280a75e00 100644
--- a/drivers/tty/serial/imx.c
+++ b/drivers/tty/serial/imx.c
@@ -2085,6 +2085,11 @@ static int serial_imx_probe(struct platform_device *pdev)
reg &= ~(UCR1_ADEN | UCR1_TRDYEN | UCR1_IDEN | UCR1_RRDYEN |
UCR1_TXMPTYEN | UCR1_RTSDEN);
writel_relaxed(reg, sport->port.membase + UCR1);
+ if (sport->dte_mode) {
+ reg = readl_relaxed(sport->port.membase + UCR3);
+ reg &= ~UCR3_RI;
+ writel_relaxed(reg, sport->port.membase + UCR3);
+ }
clk_disable_unprepare(sport->clk_ipg);
--
2.8.1
--
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