ASoC: ts3a227e: Map BTN_0 to KEY_PLAYPAUSE
authorBenson Leung <bleung@chromium.org>
Wed, 22 Nov 2017 20:56:41 +0000 (12:56 -0800)
committerMark Brown <broonie@kernel.org>
Mon, 27 Nov 2017 13:01:38 +0000 (13:01 +0000)
commitaf0f6c5820845b66c76296f281da5cf916d7e094
treebe10fa2ac34b0009db210b862120eb80bc3a9085
parent4fbd8d194f06c8a3fd2af1ce560ddb31f7ec8323
ASoC: ts3a227e: Map BTN_0 to KEY_PLAYPAUSE

The Android 3.5mm Headset jack specification mentions that BTN_0 should
be mapped to KEY_MEDIA, but this is less logical than KEY_PLAYPAUSE,
which has much broader userspace support.

For example, the Chrome OS userspace now supports KEY_PLAYPAUSE to toggle
play/pause of videos and audio, but does not handle KEY_MEDIA.

Furthermore, Android itself now supports KEY_PLAYPAUSE equivalently, as the
new USB headset spec requires KEY_PLAYPAUSE for BTN_0.
https://source.android.com/devices/accessories/headset/usb-headset-spec

Signed-off-by: Benson Leung <bleung@chromium.org>
Signed-off-by: Mark Brown <broonie@kernel.org>
sound/soc/codecs/ts3a227e.c