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@xxxxxxxxxx>
---
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[] = {
--
2.14.3
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