ASoC: Intel: kbl_rt5663_rt5514_max98927: 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>

diff --git a/sound/soc/intel/boards/kbl_rt5663_rt5514_max98927.c b/sound/soc/intel/boards/kbl_rt5663_rt5514_max98927.c
index e767283..38512f0 100644 (file)
--- a/sound/soc/intel/boards/kbl_rt5663_rt5514_max98927.c
+++ b/sound/soc/intel/boards/kbl_rt5663_rt5514_max98927.c
@@ -195,7 +195,7 @@ static int kabylake_rt5663_codec_init(struct snd_soc_pcm_runtime *rtd)
        }
 
        jack = &ctx->kabylake_headset;
-       snd_jack_set_key(jack->jack, SND_JACK_BTN_0, KEY_MEDIA);
+       snd_jack_set_key(jack->jack, SND_JACK_BTN_0, KEY_PLAYPAUSE);
        snd_jack_set_key(jack->jack, SND_JACK_BTN_1, KEY_VOICECOMMAND);
        snd_jack_set_key(jack->jack, SND_JACK_BTN_2, KEY_VOLUMEUP);
        snd_jack_set_key(jack->jack, SND_JACK_BTN_3, KEY_VOLUMEDOWN);