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authorBard Liao <bardliao@realtek.com>2017-03-08 19:05:33 +0800
committerMark Brown <broonie@kernel.org>2017-03-08 13:47:52 +0100
commit246126b0a4f24f8e88f148c9d0d6d72e6fafe6cc (patch)
treead23e548f62c006e9de0fb6aeb02fff5c87606ef /sound/soc/codecs/rt5665.c
parent09b50c3703cc354100fe36202ef5e52ee128b904 (diff)
downloadlinux-246126b0a4f24f8e88f148c9d0d6d72e6fafe6cc.tar.gz
ASoC: rt5665: increase button detection accuracy
Use sar adc for button detection to increase accuracy.

Signed-off-by: Bard Liao <bardliao@realtek.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'sound/soc/codecs/rt5665.c')
-rw-r--r--sound/soc/codecs/rt5665.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/sound/soc/codecs/rt5665.c b/sound/soc/codecs/rt5665.c
index 61137160c116..de2c104bbaf3 100644
--- a/sound/soc/codecs/rt5665.c
+++ b/sound/soc/codecs/rt5665.c
@@ -1139,7 +1139,8 @@ static void rt5665_enable_push_button_irq(struct snd_soc_codec *codec,
 	bool enable)
 {
 	if (enable) {
-		snd_soc_write(codec, RT5665_4BTN_IL_CMD_1, 0x000b);
+		snd_soc_write(codec, RT5665_4BTN_IL_CMD_1, 0x0003);
+		snd_soc_update_bits(codec, RT5665_SAR_IL_CMD_9, 0x1, 0x1);
 		snd_soc_write(codec, RT5665_IL_CMD_1, 0x0048);
 		snd_soc_update_bits(codec, RT5665_4BTN_IL_CMD_2,
 				RT5665_4BTN_IL_MASK | RT5665_4BTN_IL_RST_MASK,