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@xxxxxxxxx>
> ---
> 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
>
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