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| author | Takashi Iwai <tiwai@suse.de> | 2012-12-03 11:30:50 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2013-01-11 09:06:49 -0800 |
| commit | 740ccbaa57110e49f2296c4c610d745baaecc530 (patch) | |
| tree | 317da7a37729752eb8cc5709b0a00dbbdc1c85c4 /sound/usb/clock.c | |
| parent | 929cfe920d276f8d09b89c83f4ee0c721652d921 (diff) | |
ALSA: usb-audio: Fix missing autopm for MIDI input
commit f5f165418cabf2218eb466c0e94693b8b1aee88b upstream.
The commit [88a8516a: ALSA: usbaudio: implement USB autosuspend] added
the support of autopm for USB MIDI output, but it didn't take the MIDI
input into account.
This patch adds the following for fixing the autopm:
- Manage the URB start at the first MIDI input stream open, instead of
the time of instance creation
- Move autopm code to the common substream_open()
- Make snd_usbmidi_input_start/_stop() more robust and add the running
state check
Reviewd-by: Clemens Ladisch <clemens@ladisch.de>
Tested-by: Clemens Ladisch <clemens@ladisch.de>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'sound/usb/clock.c')
0 files changed, 0 insertions, 0 deletions