commit c164b008b62720fda072b55c378d32da3260f271
author Liu Xiang <liuxiang_1999@126.com> Wed Sep 07 22:05:01 2016 +0800
committer Greg Kroah-Hartman <gregkh@linuxfoundation.org> Thu Sep 15 12:35:49 2016 +0200
tree 44e3427c2e50ea78744b8b776521c21918f3eb46
parent 0d2665b6bcfd6b7df828582a0b8a12d29691b66d

serial: max310x: Set IRQF_TRIGGER_FALLING flag when dev.of_node is not NULL

When dev.of_node is not NULL, we also need to set IRQF_TRIGGER_FALLING
flag, otherwise it may cause uncertain interrupts.

Signed-off-by: Liu Xiang <liu.xiang6@zte.com.cn>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/tty/serial/max310x.c

diff --git a/drivers/tty/serial/max310x.c b/drivers/tty/serial/max310x.c
index 9360801..8a3e926 100644
--- a/drivers/tty/serial/max310x.c
+++ b/drivers/tty/serial/max310x.c
@@ -1329,9 +1329,9 @@
 		const struct spi_device_id *id_entry = spi_get_device_id(spi);
 
 		devtype = (struct max310x_devtype *)id_entry->driver_data;
-		flags = IRQF_TRIGGER_FALLING;
 	}
 
+	flags = IRQF_TRIGGER_FALLING;
 	regcfg.max_register = devtype->nr * 0x20 - 1;
 	regmap = devm_regmap_init_spi(spi, &regcfg);