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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 09:03:37 -0800 |
| commit | 6ab1dea0945d7179637bbec02e7e8894a59f8ba6 (patch) | |
| tree | 27e3fadb87d2c90cb2b2a7c6435bfab3158dedab /sound/sound_core.c | |
| parent | 5a6400c991f269eaab5a175d8b7c656155a74129 (diff) | |
| download | kernel_samsung_smdk4412-6ab1dea0945d7179637bbec02e7e8894a59f8ba6.zip kernel_samsung_smdk4412-6ab1dea0945d7179637bbec02e7e8894a59f8ba6.tar.gz kernel_samsung_smdk4412-6ab1dea0945d7179637bbec02e7e8894a59f8ba6.tar.bz2 | |
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/sound_core.c')
0 files changed, 0 insertions, 0 deletions