[alsa-devel] [PATCH 3/6] ASoC: rt5645: set in2_diff flag for GPD win and pocket devices

[Hans de Goede]

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 at 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[] = {
-- 
2.14.3