Commit f5758544 authored by Katsuhiro Suzuki's avatar Katsuhiro Suzuki Committed by Mark Brown

ASoC: rockchip: add workaround for silence of rk3288 ACODEC

This patch adds reset and precharge in shutdown of PCM device.

ACODEC goes to silence if we change Fs to 44.1kHz from 48kHz. This
workaround seems to work but I don't know this workaround is correct
sequence or not for ACODEC.
Signed-off-by: default avatarKatsuhiro Suzuki <katsuhiro@katsuster.net>
Signed-off-by: default avatarMark Brown <broonie@kernel.org>
parent c3275903
......@@ -261,9 +261,12 @@ static int rk3328_codec_close_playback(struct rk3328_codec_priv *rk3328)
mdelay(1);
}
/* Workaround for silence when changed Fs 48 -> 44.1kHz */
rk3328_codec_reset(rk3328);
regmap_update_bits(rk3328->regmap, DAC_PRECHARGE_CTRL,
DAC_CHARGE_CURRENT_ALL_MASK,
DAC_CHARGE_CURRENT_I);
DAC_CHARGE_CURRENT_ALL_ON);
return 0;
}
......
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