The GPD pocket has a differential signal microphone and needs in2_diff to be set to avoid getting a very noisy signal.
Since the GPD pocket and win use the same DMI strings, they share their platform data-definition, so enabling in2_diff on the pocket also sets it on the GPD win. The GPD win has a normal microphone, but setting in2_diff there does not negatively impact the sound from the microphone.
Signed-off-by: Hans de Goede hdegoede@redhat.com --- sound/soc/codecs/rt5645.c | 2 ++ 1 file changed, 2 insertions(+)
diff --git a/sound/soc/codecs/rt5645.c b/sound/soc/codecs/rt5645.c index 2e495d61b55e..6c134f4d881b 100644 --- a/sound/soc/codecs/rt5645.c +++ b/sound/soc/codecs/rt5645.c @@ -3680,6 +3680,8 @@ static const struct rt5645_platform_data gpd_win_platform_data = { .jd_mode = 3, .inv_jd1_1 = true, .long_name = "gpd-win-pocket-rt5645", + /* The GPD pocket has a diff. mic, for the win this does not matter. */ + .in2_diff = true, };
static const struct dmi_system_id dmi_platform_gpd_win[] = {