diff options
| author | Christian Gromm <christian.gromm@microchip.com> | 2020-05-05 14:14:52 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2020-05-13 13:51:12 +0200 |
| commit | 08e1b4274c7b446137b5b222c5cc0b46688cb372 (patch) | |
| tree | 51b8f18e7433d80e12fd77f0f66fa50cee0edd7b /drivers/staging/most | |
| parent | 4fdc18d3ce77bc30cc9c819ae55070c8f5ec4e18 (diff) | |
| download | linux-08e1b4274c7b446137b5b222c5cc0b46688cb372.tar.bz2 | |
staging: most: usb: add PM functions
This patch adds the implementation of the PM functions resume and suspend.
Signed-off-by: Christian Gromm <christian.gromm@microchip.com>
Link: https://lore.kernel.org/r/1588680892-9413-1-git-send-email-christian.gromm@microchip.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/staging/most')
| -rw-r--r-- | drivers/staging/most/usb/usb.c | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/drivers/staging/most/usb/usb.c b/drivers/staging/most/usb/usb.c index b31a49c37f7f..daa5e4bd977f 100644 --- a/drivers/staging/most/usb/usb.c +++ b/drivers/staging/most/usb/usb.c @@ -1221,11 +1221,39 @@ static void hdm_disconnect(struct usb_interface *interface) put_device(&mdev->dev); } +static int hdm_suspend(struct usb_interface *interface, pm_message_t message) +{ + struct most_dev *mdev = usb_get_intfdata(interface); + int i; + + mutex_lock(&mdev->io_mutex); + for (i = 0; i < mdev->iface.num_channels; i++) { + most_stop_enqueue(&mdev->iface, i); + usb_kill_anchored_urbs(&mdev->busy_urbs[i]); + } + mutex_unlock(&mdev->io_mutex); + return 0; +} + +static int hdm_resume(struct usb_interface *interface) +{ + struct most_dev *mdev = usb_get_intfdata(interface); + int i; + + mutex_lock(&mdev->io_mutex); + for (i = 0; i < mdev->iface.num_channels; i++) + most_resume_enqueue(&mdev->iface, i); + mutex_unlock(&mdev->io_mutex); + return 0; +} + static struct usb_driver hdm_usb = { .name = "hdm_usb", .id_table = usbid, .probe = hdm_probe, .disconnect = hdm_disconnect, + .resume = hdm_resume, + .suspend = hdm_suspend, }; module_usb_driver(hdm_usb); |