From 18e606275691726cce06ad803072ac54315740f7 Mon Sep 17 00:00:00 2001 From: Wang Xingchao Date: Thu, 25 Jul 2013 23:34:45 -0400 Subject: [PATCH] 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 Signed-off-by: Takashi Iwai --- sound/pci/hda/hda_codec.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/sound/pci/hda/hda_codec.c b/sound/pci/hda/hda_codec.c index 8a005f0..fdbb09a 100644 --- a/sound/pci/hda/hda_codec.c +++ b/sound/pci/hda/hda_codec.c @@ -1216,11 +1216,13 @@ static void hda_jackpoll_work(struct work_struct *work) { struct hda_codec *codec = container_of(work, struct hda_codec, jackpoll_work.work); - if (!codec->jackpoll_interval) - return; snd_hda_jack_set_dirty_all(codec); snd_hda_jack_poll_all(codec); + + if (!codec->jackpoll_interval) + return; + queue_delayed_work(codec->bus->workq, &codec->jackpoll_work, codec->jackpoll_interval); } -- 2.7.4