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ALSA: hda - jack poll once if jackpoll_interval==0
With jackpoll_interval != 0, it's used to poll jack event periodically in a delayed work. if it's 0, give the caller chance to probe jack status but will not restart the delayed work. In the next patch which enable WAKEEN feature, HDA controller was able to wake up system when it's in D3, it's useful to detect Jack hotplug event and notify userspace. By default the jackpoll_interval=0, this patch let jack poll once without starting the delayed work. Signed-off-by: Wang Xingchao <xingchao.wang@linux.intel.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
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@ -1216,11 +1216,13 @@ static void hda_jackpoll_work(struct work_struct *work)
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{
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struct hda_codec *codec =
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container_of(work, struct hda_codec, jackpoll_work.work);
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if (!codec->jackpoll_interval)
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return;
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snd_hda_jack_set_dirty_all(codec);
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snd_hda_jack_poll_all(codec);
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if (!codec->jackpoll_interval)
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return;
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queue_delayed_work(codec->bus->workq, &codec->jackpoll_work,
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codec->jackpoll_interval);
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}
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