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authorHui Wang <hui.wang@canonical.com>2019-05-06 17:09:31 +0300
committerTakashi Iwai <tiwai@suse.de>2019-05-06 17:29:05 +0300
commit8c2e6728c2bf95765b724e07d0278ae97cd1ee0d (patch)
treebcbdf570b1d49595fee15382e835934ad318a830 /Kbuild
parentd81645510ce2a140816c4cb37c45b78d810ca63f (diff)
downloadlinux-8c2e6728c2bf95765b724e07d0278ae97cd1ee0d.tar.xz
ALSA: hda/hdmi - Read the pin sense from register when repolling
The driver will check the monitor presence when resuming from suspend, starting poll or interrupt triggers. In these 3 situations, the jack_dirty will be set to 1 first, then the hda_jack.c reads the pin_sense from register, after reading the register, the jack_dirty will be set to 0. But hdmi_repoll_work() is enabled in these 3 situations, It will read the pin_sense a couple of times subsequently, since the jack_dirty is 0 now, It does not read the register anymore, instead it uses the shadow pin_sense which is read at the first time. It is meaningless to check the shadow pin_sense a couple of times, we need to read the register to check the real plugging state, so we set the jack_dirty to 1 in the hdmi_repoll_work(). Signed-off-by: Hui Wang <hui.wang@canonical.com> Cc: <stable@vger.kernel.org> Signed-off-by: Takashi Iwai <tiwai@suse.de>
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