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| author | Pascal Huerst <pascal.huerst@gmail.com> | 2018-04-11 13:50:45 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-04-22 17:32:43 +0200 |
| commit | 7a91e382974c2d75c8a49022c361113c7d8f4935 (patch) | |
| tree | 7389e9d1c13098a9ba2a6d7baea5d971616c7565 | |
| parent | a406c4b8097473a1294ab056e65df801382b8f28 (diff) | |
| download | linux-7a91e382974c2d75c8a49022c361113c7d8f4935.tar.bz2 | |
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>
| -rw-r--r-- | drivers/tty/serial/msm_serial.c | 25 |
1 files changed, 25 insertions, 0 deletions
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, }, }; |