[PATCH 3/5] ASoC: rt298: Configure combo jack for headphones

[David Ward]

During jack detection, the combo jack is configured for a CTIA headset, and
then for an OMTP headset, while sensing the mic connection. If a mic is not
found in either case, the combo jack should be re-configured for headphones
only. This is consistent with the HDA driver behavior.

Signed-off-by: David Ward <david.ward at gatech.edu>
---
 sound/soc/codecs/rt298.c | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/sound/soc/codecs/rt298.c b/sound/soc/codecs/rt298.c
index 32cc9b6287d2..c592c40a7ab3 100644
--- a/sound/soc/codecs/rt298.c
+++ b/sound/soc/codecs/rt298.c
@@ -267,11 +267,16 @@ static int rt298_jack_detect(struct rt298_priv *rt298, bool *hp, bool *mic)
 				msleep(300);
 				regmap_read(rt298->regmap,
 					RT298_CBJ_CTRL2, &val);
-				if (0x0070 == (val & 0x0070))
+				if (0x0070 == (val & 0x0070)) {
 					*mic = true;
-				else
+				} else {
 					*mic = false;
+					regmap_update_bits(rt298->regmap,
+						RT298_CBJ_CTRL1,
+						0xfcc0, 0xc400);
+				}
 			}
+
 			regmap_update_bits(rt298->regmap,
 				RT298_DC_GAIN, 0x200, 0x0);
 
-- 
2.31.1