diff options
| author | Mark Brown <broonie@opensource.wolfsonmicro.com> | 2010-03-30 09:29:14 -0400 |
|---|---|---|
| committer | Mark Brown <broonie@opensource.wolfsonmicro.com> | 2010-04-05 11:20:49 -0400 |
| commit | d522ffbfb9fccf6eca283cd2e8b03cf3d21fb616 (patch) | |
| tree | a3dd5826bb8c4d13f886d21ec460b8e45d058fe7 /sound/soc | |
| parent | 4dcc93d0ede49fae32dd0ee41c685db1be14c529 (diff) | |
ASoC: Only do WM8994 bias off transition from standby
Otherwise we may try to power down multiple times when the using
idle bias off and the driver is removed.
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Acked-by: Liam Girdwood <lrg@slimlogic.co.uk>
Diffstat (limited to 'sound/soc')
| -rw-r--r-- | sound/soc/codecs/wm8994.c | 53 |
1 files changed, 29 insertions, 24 deletions
diff --git a/sound/soc/codecs/wm8994.c b/sound/soc/codecs/wm8994.c index c80218f23bb9..f8355ac76a42 100644 --- a/sound/soc/codecs/wm8994.c +++ b/sound/soc/codecs/wm8994.c | |||
| @@ -3007,34 +3007,39 @@ static int wm8994_set_bias_level(struct snd_soc_codec *codec, | |||
| 3007 | break; | 3007 | break; |
| 3008 | 3008 | ||
| 3009 | case SND_SOC_BIAS_OFF: | 3009 | case SND_SOC_BIAS_OFF: |
| 3010 | /* Switch over to startup biases */ | 3010 | if (codec->bias_level == SND_SOC_BIAS_STANDBY) { |
| 3011 | snd_soc_update_bits(codec, WM8994_ANTIPOP_2, | 3011 | /* Switch over to startup biases */ |
| 3012 | WM8994_BIAS_SRC | WM8994_STARTUP_BIAS_ENA | | 3012 | snd_soc_update_bits(codec, WM8994_ANTIPOP_2, |
| 3013 | WM8994_VMID_BUF_ENA | | 3013 | WM8994_BIAS_SRC | |
| 3014 | WM8994_VMID_RAMP_MASK, | 3014 | WM8994_STARTUP_BIAS_ENA | |
| 3015 | WM8994_BIAS_SRC | WM8994_STARTUP_BIAS_ENA | | 3015 | WM8994_VMID_BUF_ENA | |
| 3016 | WM8994_VMID_BUF_ENA | | 3016 | WM8994_VMID_RAMP_MASK, |
| 3017 | (1 << WM8994_VMID_RAMP_SHIFT)); | 3017 | WM8994_BIAS_SRC | |
| 3018 | 3018 | WM8994_STARTUP_BIAS_ENA | | |
| 3019 | /* Disable main biases */ | 3019 | WM8994_VMID_BUF_ENA | |
| 3020 | snd_soc_update_bits(codec, WM8994_POWER_MANAGEMENT_1, | 3020 | (1 << WM8994_VMID_RAMP_SHIFT)); |
| 3021 | WM8994_BIAS_ENA | WM8994_VMID_SEL_MASK, 0); | ||
| 3022 | 3021 | ||
| 3023 | /* Discharge line */ | 3022 | /* Disable main biases */ |
| 3024 | snd_soc_update_bits(codec, WM8994_ANTIPOP_1, | 3023 | snd_soc_update_bits(codec, WM8994_POWER_MANAGEMENT_1, |
| 3025 | WM8994_LINEOUT1_DISCH | | 3024 | WM8994_BIAS_ENA | |
| 3026 | WM8994_LINEOUT2_DISCH, | 3025 | WM8994_VMID_SEL_MASK, 0); |
| 3027 | WM8994_LINEOUT1_DISCH | | ||
| 3028 | WM8994_LINEOUT2_DISCH); | ||
| 3029 | 3026 | ||
| 3030 | msleep(5); | 3027 | /* Discharge line */ |
| 3028 | snd_soc_update_bits(codec, WM8994_ANTIPOP_1, | ||
| 3029 | WM8994_LINEOUT1_DISCH | | ||
| 3030 | WM8994_LINEOUT2_DISCH, | ||
| 3031 | WM8994_LINEOUT1_DISCH | | ||
| 3032 | WM8994_LINEOUT2_DISCH); | ||
| 3031 | 3033 | ||
| 3032 | /* Switch off startup biases */ | 3034 | msleep(5); |
| 3033 | snd_soc_update_bits(codec, WM8994_ANTIPOP_2, | ||
| 3034 | WM8994_BIAS_SRC | WM8994_STARTUP_BIAS_ENA | | ||
| 3035 | WM8994_VMID_BUF_ENA | | ||
| 3036 | WM8994_VMID_RAMP_MASK, 0); | ||
| 3037 | 3035 | ||
| 3036 | /* Switch off startup biases */ | ||
| 3037 | snd_soc_update_bits(codec, WM8994_ANTIPOP_2, | ||
| 3038 | WM8994_BIAS_SRC | | ||
| 3039 | WM8994_STARTUP_BIAS_ENA | | ||
| 3040 | WM8994_VMID_BUF_ENA | | ||
| 3041 | WM8994_VMID_RAMP_MASK, 0); | ||
| 3042 | } | ||
| 3038 | break; | 3043 | break; |
| 3039 | } | 3044 | } |
| 3040 | codec->bias_level = level; | 3045 | codec->bias_level = level; |