linux-kernel - [PATCH] ASoC: da7219: Support low DC impedance headset

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Date:   Fri,  1 Dec 2023 12:29:33 +0800
From:   David Rau <David.Rau.opensource@...renesas.com>
To:     broonie@...nel.org
Cc:     support.opensource@...semi.com, lgirdwood@...il.com,
        perex@...ex.cz, tiwai@...e.com, alsa-devel@...a-project.org,
        linux-kernel@...r.kernel.org,
        David Rau <David.Rau.opensource@...renesas.com>
Subject: [PATCH] ASoC: da7219: Support low DC impedance headset

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>
---
 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 4c4405942779..6bc068cdcbe2 100644
--- a/sound/soc/codecs/da7219-aad.c
+++ b/sound/soc/codecs/da7219-aad.c
@@ -696,7 +696,7 @@ static struct da7219_aad_pdata *da7219_aad_fw_to_pdata(struct device *dev)
 		aad_pdata->mic_det_thr =
 			da7219_aad_fw_mic_det_thr(dev, 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 =
-- 
2.17.1