ASoC: tlv312aic23: unbreak resume

commit e875c1e3e758447ba81ca450d89434b3b0496d37 upstream.

* commit f9dfbf9 "ASoC: tlv320aic23: convert to soc-cache" leads to
a bug preventing resumeof the codec as regmap expects a 9 bits data
register but 0xFFFF is passed in tlv320aic23_set_bias_level and this
values gets cached preventing any write to the TLV320AIC23_PWR
register as the final value produced by regmap is (register << 9) | value

* this patch solves the problem by only working on the 9 bits the
register contains.

Signed-off-by: Eric Bénard <eric@eukrea.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>

diff --git a/sound/soc/codecs/tlv320aic23.c b/sound/soc/codecs/tlv320aic23.c
index 336de8f69a026e9a6da20af04f3b821d5ba69a33..0e7e26eba6a019b5dbb22395750025df2ecd6749 100644 (file)
--- a/sound/soc/codecs/tlv320aic23.c
+++ b/sound/soc/codecs/tlv320aic23.c
@@ -473,7 +473,7 @@ static int tlv320aic23_set_dai_sysclk(struct snd_soc_dai *codec_dai,
 static int tlv320aic23_set_bias_level(struct snd_soc_codec *codec,
                                      enum snd_soc_bias_level level)
 {
-       u16 reg = snd_soc_read(codec, TLV320AIC23_PWR) & 0xff7f;
+       u16 reg = snd_soc_read(codec, TLV320AIC23_PWR) & 0x17f;
 
        switch (level) {
        case SND_SOC_BIAS_ON:
@@ -492,7 +492,7 @@ static int tlv320aic23_set_bias_level(struct snd_soc_codec *codec,
        case SND_SOC_BIAS_OFF:
                /* everything off, dac mute, inactive */
                snd_soc_write(codec, TLV320AIC23_ACTIVE, 0x0);
-               snd_soc_write(codec, TLV320AIC23_PWR, 0xffff);
+               snd_soc_write(codec, TLV320AIC23_PWR, 0x1ff);
                break;
        }
        codec->dapm.bias_level = level;