CHROMIUM: ASoC: max98090 - Expose HP out enable.

Expose the headphone output enables to user space.  This will allow
userspace to ensure that there is stable output before the headphones
are turned on, avoiding a pop on insertion.

TEST=Use 'HP Left Out Switch' and 'HP Right Out Switch' in UCM for
headphone enable/disable sequence. Verify that hotplug headphone
won't trigger loud pop noise.

Change-Id: I8e1a86b13e4c954ee2ba2176ae5d72545ccf2e8f
Commit-Ready: Hsinyu Chao <>
Tested-by: Hsinyu Chao <>
Reviewed-by: Cheng-Yi Chiang <>
(cherry picked from commit 2292d6a6c40cd8332a3da6ae9cb1d4f0a31a5bf1)
Reviewed-by: Hsinyu Chao <>
Commit-Queue: Hsinyu Chao <>
1 file changed