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tty: serial: msm_serial: Add support for suspend/resume 

Without this, tx stops working after resume. By adding
these calls, everything seems to work fine.

Signed-off-by: Pascal Huerst <pascal.huerst@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Pascal Huerst 2018-04-11 13:50:45 +02:00 committed by Greg Kroah-Hartman
parent a406c4b809
commit 7a91e38297
1 changed files with 25 additions and 0 deletions
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25
drivers/tty/serial/msm_serial.c
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@ -1812,11 +1812,36 @@ static const struct of_device_id msm_match_table[] = {
};
MODULE_DEVICE_TABLE(of, msm_match_table);
#ifdef CONFIG_PM_SLEEP
static int msm_serial_suspend(struct device *dev)
{
struct msm_port *port = dev_get_drvdata(dev);
uart_suspend_port(&msm_uart_driver, &port->uart);
return 0;
}
static int msm_serial_resume(struct device *dev)
{
struct msm_port *port = dev_get_drvdata(dev);
uart_resume_port(&msm_uart_driver, &port->uart);
return 0;
}
#endif /* CONFIG_PM_SLEEP */
static const struct dev_pm_ops msm_serial_dev_pm_ops = {
SET_SYSTEM_SLEEP_PM_OPS(msm_serial_suspend, msm_serial_resume)
};
static struct platform_driver msm_platform_driver = {
.remove = msm_serial_remove,
.probe = msm_serial_probe,
.driver = {
.name = "msm_serial",
.pm = &msm_serial_dev_pm_ops,
.of_match_table = msm_match_table,
},
};