diff options
| author |   Sebastian Reichel <sre@kernel.org> | 2017-03-28 17:59:31 +0200 |
|---|---|---|
| committer |   Marcel Holtmann <marcel@holtmann.org> | 2017-04-12 22:12:16 +0200 |
| commit | b3f80c8f75efb2e6a817a0e48bf36cd30685a138 (patch) | |
| tree | 0c87449d8c01772ebb9ec801b0de332a51c90331 /drivers/tty/serdev/core.c | |
| parent | tty: serial: omap: add UPF_BOOT_AUTOCONF flag for DT init (diff) | |
| download | linux-dev-b3f80c8f75efb2e6a817a0e48bf36cd30685a138.tar.xz linux-dev-b3f80c8f75efb2e6a817a0e48bf36cd30685a138.zip | |
serdev: add serdev_device_wait_until_sent
Add method, which waits until the transmission buffer has been sent.
Note, that the change in ttyport_write_wakeup is related, since
tty_wait_until_sent will hang without that change.
Acked-by: Rob Herring <robh@kernel.org>
Acked-by: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Sebastian Reichel <sre@kernel.org>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Diffstat (limited to 'drivers/tty/serdev/core.c')
| -rw-r--r-- | drivers/tty/serdev/core.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/drivers/tty/serdev/core.c b/drivers/tty/serdev/core.c index f4c6c90add78..a63b74031e22 100644 --- a/drivers/tty/serdev/core.c +++ b/drivers/tty/serdev/core.c @@ -173,6 +173,17 @@ void serdev_device_set_flow_control(struct serdev_device *serdev, bool enable) } EXPORT_SYMBOL_GPL(serdev_device_set_flow_control); +void serdev_device_wait_until_sent(struct serdev_device *serdev, long timeout) +{ + struct serdev_controller *ctrl = serdev->ctrl; + + if (!ctrl || !ctrl->ops->wait_until_sent) + return; + + ctrl->ops->wait_until_sent(ctrl, timeout); +} +EXPORT_SYMBOL_GPL(serdev_device_wait_until_sent); + static int serdev_drv_probe(struct device *dev) { const struct serdev_device_driver *sdrv = to_serdev_device_driver(dev->driver); |