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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>

Link: https://lore.kernel.org/r/1560433800-12255-4-git-send-email-erwan.leray@st.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Erwan Le Ray 2019-06-13 15:49:53 +02:00 committed by Greg Kroah-Hartman
parent 96b79ac705
commit 94616d9a9d
1 changed files with 5 additions and 0 deletions
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5
drivers/tty/serial/stm32-usart.c
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@ -24,6 +24,7 @@
#include <linux/module.h>
#include <linux/of.h>
#include <linux/of_platform.h>
#include <linux/pinctrl/consumer.h>
#include <linux/platform_device.h>
#include <linux/pm_runtime.h>
#include <linux/pm_wakeirq.h>
@ -1373,6 +1374,8 @@ static int stm32_serial_suspend(struct device *dev)
else
stm32_serial_enable_wakeup(port, false);
pinctrl_pm_select_sleep_state(dev);
return 0;
}
@ -1380,6 +1383,8 @@ 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);