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authorBich Hemon <bich.hemon@st.com>2019-06-04 10:55:12 +0200
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2019-06-10 18:47:43 +0200
commitc70669ecef4e34af8913108fae4b8a9b1dc63fa1 (patch)
tree24eea6f8d90cde7b58df969e8a56b5f7a8bf8ba6 /drivers/tty/serial/stm32-usart.c
parent15b3cd8ef46ad1b100e0d3c7e38774f330726820 (diff)
downloadlinux-c70669ecef4e34af8913108fae4b8a9b1dc63fa1.tar.gz
serial: stm32: select pinctrl state in each suspend/resume function
Select either pinctrl sleep state in suspend function or default state in
resume function.

Signed-off-by: Bich Hemon <bich.hemon@st.com>
Signed-off-by: Erwan Le Ray <erwan.leray@st.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/tty/serial/stm32-usart.c')
-rw-r--r--drivers/tty/serial/stm32-usart.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/tty/serial/stm32-usart.c b/drivers/tty/serial/stm32-usart.c
index 9c2b04e6f5b6..04eda75d671c 100644
--- a/drivers/tty/serial/stm32-usart.c
+++ b/drivers/tty/serial/stm32-usart.c
@@ -1298,6 +1298,8 @@ static int stm32_serial_suspend(struct device *dev)
 	else
 		stm32_serial_enable_wakeup(port, false);
 
+	pinctrl_pm_select_sleep_state(dev);
+
 	return 0;
 }
 
@@ -1305,6 +1307,8 @@ static int stm32_serial_resume(struct device *dev)
 {
 	struct uart_port *port = dev_get_drvdata(dev);
 
+	pinctrl_pm_select_default_state(dev);
+
 	if (device_may_wakeup(dev))
 		stm32_serial_enable_wakeup(port, false);