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ASoC: rt5665: increase button detection accuracy

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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>
This commit is contained in:
Bard Liao 2017-03-08 19:05:33 +08:00 committed by Mark Brown
parent 09b50c3703
commit 246126b0a4
1 changed files with 2 additions and 1 deletions
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3
sound/soc/codecs/rt5665.c
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@ -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,