tree aae8e1b025e1bc46279dad8255a98e41d80df70a
parent a1a6244b2d53c9522cb4f6ca33a0926c9df90f2a
author kunleiz <kunleiz@codeaurora.org> 1526551284 +0800
committer Gerrit - the friendly Code Review server <code-review@localhost> 1528943654 -0700

hal: avoid music output from combo device after ringtone

When headset insert, music output route to headset. Later
ringtone happens, music pauses, and its output device still
is headset. But primary output will change to speaker+headphone
to play ringtone. When ringtone stops, music output from headset
first, then the output device changes to speaker+headphone combo
device. This is due to platform_set_swap_channels function is
called to cause device switch to current primary output device.

Fix by avoid device switch happen when current device is not
stereo speaker or swap flag is false.

CRs-Fixed: 2243778
Change-Id: I363e039ae8621e9bab2827e85c8744b556259320