ASoC: rt5651: Fix bias_level confusion

The rt5651_set_bias_level() function was turning everything off at
SND_SOC_BIAS_STANDBY, rather then at SND_SOC_BIAS_OFF, requiring the bias-
level to be raised to SND_SOC_BIAS_PREPARE before turning anything on.

This is not how the bias-levels are supposed to work, this commit fixes
this by turning everything off at the SND_SOC_BIAS_OFF level and enabling
the pwr-bits needed for minimum functionality at SND_SOC_BIAS_STANDBY.

This fixes the minimum set of pwr-bits not getting enabled when
force-enabling some dapm-supplies (e.g. for jack type detection),
which raises the bias-level to standby.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

diff --git a/sound/soc/codecs/rt5651.c b/sound/soc/codecs/rt5651.c
index 8548f94..c565607 100644 (file)
--- a/sound/soc/codecs/rt5651.c
+++ b/sound/soc/codecs/rt5651.c
@@ -1526,6 +1526,13 @@ static int rt5651_set_bias_level(struct snd_soc_component *component,
        switch (level) {
        case SND_SOC_BIAS_PREPARE:
                if (SND_SOC_BIAS_STANDBY == snd_soc_component_get_bias_level(component)) {
+                       if (snd_soc_component_read32(component, RT5651_PLL_MODE_1) & 0x9200)
+                               snd_soc_component_update_bits(component, RT5651_D_MISC,
+                                                   0xc00, 0xc00);
+               }
+               break;
+       case SND_SOC_BIAS_STANDBY:
+               if (SND_SOC_BIAS_OFF == snd_soc_component_get_bias_level(component)) {
                        snd_soc_component_update_bits(component, RT5651_PWR_ANLG1,
                                RT5651_PWR_VREF1 | RT5651_PWR_MB |
                                RT5651_PWR_BG | RT5651_PWR_VREF2,
@@ -1539,13 +1546,10 @@ static int rt5651_set_bias_level(struct snd_soc_component *component,
                                RT5651_PWR_LDO_DVO_MASK,
                                RT5651_PWR_LDO_DVO_1_2V);
                        snd_soc_component_update_bits(component, RT5651_D_MISC, 0x1, 0x1);
-                       if (snd_soc_component_read32(component, RT5651_PLL_MODE_1) & 0x9200)
-                               snd_soc_component_update_bits(component, RT5651_D_MISC,
-                                                   0xc00, 0xc00);
                }
                break;
 
-       case SND_SOC_BIAS_STANDBY:
+       case SND_SOC_BIAS_OFF:
                snd_soc_component_write(component, RT5651_D_MISC, 0x0010);
                snd_soc_component_write(component, RT5651_PWR_DIG1, 0x0000);
                snd_soc_component_write(component, RT5651_PWR_DIG2, 0x0000);