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Commit 246126b0 authored by Bard Liao's avatar Bard Liao Committed by Mark Brown
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ASoC: rt5665: increase button detection accuracy 



Use sar adc for button detection to increase accuracy.

Signed-off-by: default avatarBard Liao <bardliao@realtek.com>
Signed-off-by: default avatarMark Brown <broonie@kernel.org>
parent 09b50c37

sound/soc/codecs/rt5665.c

+2 −1
Original line number Diff line number Diff line
@@ -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,