| Message ID | 20180411115045.15864-1-pascal.huerst@gmail.com (mailing list archive) |
|---|---|
| State | Not Applicable, archived |
| Headers | show |
On Wed 11 Apr 04:50 PDT 2018, Pascal Huerst wrote: > 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> > --- > drivers/tty/serial/msm_serial.c | 25 +++++++++++++++++++++++++ > 1 file changed, 25 insertions(+) > > diff --git a/drivers/tty/serial/msm_serial.c b/drivers/tty/serial/msm_serial.c > index ee96cf0d0057..33cd6e59ea69 100644 > --- a/drivers/tty/serial/msm_serial.c > +++ b/drivers/tty/serial/msm_serial.c > @@ -1812,11 +1812,36 @@ static const struct of_device_id msm_match_table[] = { > }; > MODULE_DEVICE_TABLE(of, msm_match_table); > > +#ifdef CONFIG_PM_SLEEP Rather than wrapping these two functions in a check for CONFIG_PM_SLEEP use __maybe_unused, as in: static int __maybe_unused msm_serial_suspend(struct device *dev) Regards, Bjorn > +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, > }, > }; > -- > 2.14.3 > > -- > To unsubscribe from this list: send the line "unsubscribe linux-arm-msm" in > the body of a message to majordomo@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html -- To unsubscribe from this list: send the line "unsubscribe linux-arm-msm" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
diff --git a/drivers/tty/serial/msm_serial.c b/drivers/tty/serial/msm_serial.c index ee96cf0d0057..33cd6e59ea69 100644 --- a/drivers/tty/serial/msm_serial.c +++ b/drivers/tty/serial/msm_serial.c @@ -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, }, };
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> --- drivers/tty/serial/msm_serial.c | 25 +++++++++++++++++++++++++ 1 file changed, 25 insertions(+)