linux-kernel - [PATCH AUTOSEL 4.14 4/5] ASoC: da7219: Support low DC impedance headset

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Message-ID: <20231211140311.392827-4-sashal@kernel.org>
Date:   Mon, 11 Dec 2023 09:03:09 -0500
From:   Sasha Levin <sashal@...nel.org>
To:     linux-kernel@...r.kernel.org, stable@...r.kernel.org
Cc:     David Rau <David.Rau.opensource@...renesas.com>,
        Mark Brown <broonie@...nel.org>,
        Sasha Levin <sashal@...nel.org>,
        support.opensource@...semi.com, lgirdwood@...il.com,
        perex@...ex.cz, tiwai@...e.com, linux-sound@...r.kernel.org
Subject: [PATCH AUTOSEL 4.14 4/5] ASoC: da7219: Support low DC impedance headset

From: David Rau <David.Rau.opensource@...renesas.com>

[ Upstream commit 5f44de697383fcc9a9a1a78f99e09d1838704b90 ]

Change the default MIC detection impedance threshold to 200ohm
to support low mic DC impedance headset.

Signed-off-by: David Rau <David.Rau.opensource@...renesas.com>
Link: https://lore.kernel.org/r/20231201042933.26392-1-David.Rau.opensource@dm.renesas.com
Signed-off-by: Mark Brown <broonie@...nel.org>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 sound/soc/codecs/da7219-aad.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/sound/soc/codecs/da7219-aad.c b/sound/soc/codecs/da7219-aad.c
index 793c8768f7c44..5a31a4db1e23a 100644
--- a/sound/soc/codecs/da7219-aad.c
+++ b/sound/soc/codecs/da7219-aad.c
@@ -650,7 +650,7 @@ static struct da7219_aad_pdata *da7219_aad_fw_to_pdata(struct snd_soc_codec *cod
 		aad_pdata->mic_det_thr =
 			da7219_aad_fw_mic_det_thr(codec, fw_val32);
 	else
-		aad_pdata->mic_det_thr = DA7219_AAD_MIC_DET_THR_500_OHMS;
+		aad_pdata->mic_det_thr = DA7219_AAD_MIC_DET_THR_200_OHMS;
 
 	if (fwnode_property_read_u32(aad_np, "dlg,jack-ins-deb", &fw_val32) >= 0)
 		aad_pdata->jack_ins_deb =
-- 
2.42.0