ASoC: rt5651: Do not modify jd and PLL power bits from set_bias_level()

rt5651_set_bias_level(BIAS_OFF) used to unconditionally clear the entire
register, including the jack-detect and PLL power bits. When jack-detection
support was introduced a special case for jack-detect was added which
hard-codes a register value to keep both on.

This commit removes the jack-detect special case, instead simply leaving
these bits as is on BIAS_OFF.
Tested-by: Carlo Caione <carlo@endlessm.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

sound/soc/codecs/rt5651.c

@@ -1521,8 +1521,6 @@ static int rt5651_set_dai_pll(struct snd_soc_dai *dai, int pll_id, int source,
 static int rt5651_set_bias_level(struct snd_soc_component *component,
 			enum snd_soc_bias_level level)
 {
-	struct rt5651_priv *rt5651 = snd_soc_component_get_drvdata(component);
-
 	switch (level) {
 	case SND_SOC_BIAS_PREPARE:
 		if (SND_SOC_BIAS_STANDBY == snd_soc_component_get_bias_level(component)) {
@@ -1558,11 +1556,9 @@ static int rt5651_set_bias_level(struct snd_soc_component *component,
 		/* Do not touch the LDO voltage select bits on bias-off */
 		snd_soc_component_update_bits(component, RT5651_PWR_ANLG1,
 			~RT5651_PWR_LDO_DVO_MASK, 0);
-		if (rt5651->jd_src) {
-			snd_soc_component_write(component, RT5651_PWR_ANLG2, 0x0204);
-		} else {
-			snd_soc_component_write(component, RT5651_PWR_ANLG2, 0x0000);
-		}
+		/* Leave PLL1 and jack-detect power as is, all others off */
+		snd_soc_component_update_bits(component, RT5651_PWR_ANLG2,
+				    ~(RT5651_PWR_PLL | RT5651_PWR_JD_M), 0);
 		break;
 
 	default: