[5/8] ASoC: rt5665: increase button detection accuracy
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Message ID 1488971136-19100-5-git-send-email-bardliao@realtek.com
State Accepted
Commit 246126b0a4f24f8e88f148c9d0d6d72e6fafe6cc
Headers show

Commit Message

Bard Liao March 8, 2017, 11:05 a.m. UTC
Use sar adc for button detection to increase accuracy.

Signed-off-by: Bard Liao <bardliao@realtek.com>
---
 sound/soc/codecs/rt5665.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

Patch
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diff --git a/sound/soc/codecs/rt5665.c b/sound/soc/codecs/rt5665.c
index efacc94..ca6aa66 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,