On Tue, 01 Jan 2019 12:32:46 +0100, Hans de Goede wrote:
During my recent work on the bytcht-es8316 UCM profile I realized that the bytcr-rt5651 devices with a single speaker use a differential setup just like the es8316 does. The tell-tale here is the speaker going quiet when playing the exact same sound on both channels when things are configured for stereo speakers.
I've run some tests and the rt5651 does have a special mono balanced out mode for its line-out but using this results in the same sound (and the same loudness / volume of the sound) as our current solution, so adding support for this to the kernel buys us nothing.
This commit makes no changes, it just documents my findings in a big comment for future reference.
Signed-off-by: Hans de Goede hdegoede@redhat.com
Applied, thanks.
Takashi