diff options
Diffstat (limited to 'sound/soc/codecs/wm8350.c')
| -rw-r--r-- | sound/soc/codecs/wm8350.c | 51 |
1 files changed, 44 insertions, 7 deletions
diff --git a/sound/soc/codecs/wm8350.c b/sound/soc/codecs/wm8350.c index e7348d341b76..3ff0373dff89 100644 --- a/sound/soc/codecs/wm8350.c +++ b/sound/soc/codecs/wm8350.c @@ -63,6 +63,8 @@ struct wm8350_data { struct wm8350_jack_data hpl; struct wm8350_jack_data hpr; struct regulator_bulk_data supplies[ARRAY_SIZE(supply_names)]; + int fll_freq_out; + int fll_freq_in; }; static unsigned int wm8350_codec_cache_read(struct snd_soc_codec *codec, @@ -406,7 +408,6 @@ static const char *wm8350_deemp[] = { "None", "32kHz", "44.1kHz", "48kHz" }; static const char *wm8350_pol[] = { "Normal", "Inv R", "Inv L", "Inv L & R" }; static const char *wm8350_dacmutem[] = { "Normal", "Soft" }; static const char *wm8350_dacmutes[] = { "Fast", "Slow" }; -static const char *wm8350_dacfilter[] = { "Normal", "Sloping" }; static const char *wm8350_adcfilter[] = { "None", "High Pass" }; static const char *wm8350_adchp[] = { "44.1kHz", "8kHz", "16kHz", "32kHz" }; static const char *wm8350_lr[] = { "Left", "Right" }; @@ -416,7 +417,6 @@ static const struct soc_enum wm8350_enum[] = { SOC_ENUM_SINGLE(WM8350_DAC_CONTROL, 0, 4, wm8350_pol), SOC_ENUM_SINGLE(WM8350_DAC_MUTE_VOLUME, 14, 2, wm8350_dacmutem), SOC_ENUM_SINGLE(WM8350_DAC_MUTE_VOLUME, 13, 2, wm8350_dacmutes), - SOC_ENUM_SINGLE(WM8350_DAC_MUTE_VOLUME, 12, 2, wm8350_dacfilter), SOC_ENUM_SINGLE(WM8350_ADC_CONTROL, 15, 2, wm8350_adcfilter), SOC_ENUM_SINGLE(WM8350_ADC_CONTROL, 8, 4, wm8350_adchp), SOC_ENUM_SINGLE(WM8350_ADC_CONTROL, 0, 4, wm8350_pol), @@ -444,10 +444,9 @@ static const struct snd_kcontrol_new wm8350_snd_controls[] = { 0, 255, 0, dac_pcm_tlv), SOC_ENUM("Playback PCM Mute Function", wm8350_enum[2]), SOC_ENUM("Playback PCM Mute Speed", wm8350_enum[3]), - SOC_ENUM("Playback PCM Filter", wm8350_enum[4]), - SOC_ENUM("Capture PCM Filter", wm8350_enum[5]), - SOC_ENUM("Capture PCM HP Filter", wm8350_enum[6]), - SOC_ENUM("Capture ADC Inversion", wm8350_enum[7]), + SOC_ENUM("Capture PCM Filter", wm8350_enum[4]), + SOC_ENUM("Capture PCM HP Filter", wm8350_enum[5]), + SOC_ENUM("Capture ADC Inversion", wm8350_enum[6]), SOC_WM8350_DOUBLE_R_TLV("Capture PCM Volume", WM8350_ADC_DIGITAL_VOLUME_L, WM8350_ADC_DIGITAL_VOLUME_R, @@ -613,7 +612,7 @@ SOC_DAPM_SINGLE("Switch", WM8350_BEEP_VOLUME, 15, 1, 1); /* Out4 Capture Mux */ static const struct snd_kcontrol_new wm8350_out4_capture_controls = -SOC_DAPM_ENUM("Route", wm8350_enum[8]); +SOC_DAPM_ENUM("Route", wm8350_enum[7]); static const struct snd_soc_dapm_widget wm8350_dapm_widgets[] = { @@ -993,6 +992,7 @@ static int wm8350_pcm_hw_params(struct snd_pcm_substream *substream, struct snd_soc_dai *codec_dai) { struct snd_soc_codec *codec = codec_dai->codec; + struct wm8350 *wm8350 = codec->control_data; u16 iface = wm8350_codec_read(codec, WM8350_AI_FORMATING) & ~WM8350_AIF_WL_MASK; @@ -1012,6 +1012,19 @@ static int wm8350_pcm_hw_params(struct snd_pcm_substream *substream, } wm8350_codec_write(codec, WM8350_AI_FORMATING, iface); + + /* The sloping stopband filter is recommended for use with + * lower sample rates to improve performance. + */ + if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) { + if (params_rate(params) < 24000) + wm8350_set_bits(wm8350, WM8350_DAC_MUTE_VOLUME, + WM8350_DAC_SB_FILT); + else + wm8350_clear_bits(wm8350, WM8350_DAC_MUTE_VOLUME, + WM8350_DAC_SB_FILT); + } + return 0; } @@ -1093,10 +1106,14 @@ static int wm8350_set_fll(struct snd_soc_dai *codec_dai, { struct snd_soc_codec *codec = codec_dai->codec; struct wm8350 *wm8350 = codec->control_data; + struct wm8350_data *priv = codec->private_data; struct _fll_div fll_div; int ret = 0; u16 fll_1, fll_4; + if (freq_in == priv->fll_freq_in && freq_out == priv->fll_freq_out) + return 0; + /* power down FLL - we need to do this for reconfiguration */ wm8350_clear_bits(wm8350, WM8350_POWER_MGMT_4, WM8350_FLL_ENA | WM8350_FLL_OSC_ENA); @@ -1131,6 +1148,9 @@ static int wm8350_set_fll(struct snd_soc_dai *codec_dai, wm8350_set_bits(wm8350, WM8350_POWER_MGMT_4, WM8350_FLL_OSC_ENA); wm8350_set_bits(wm8350, WM8350_POWER_MGMT_4, WM8350_FLL_ENA); + priv->fll_freq_out = freq_out; + priv->fll_freq_in = freq_in; + return 0; } @@ -1660,6 +1680,21 @@ static int __devexit wm8350_codec_remove(struct platform_device *pdev) return 0; } +#ifdef CONFIG_PM +static int wm8350_codec_suspend(struct platform_device *pdev, pm_message_t m) +{ + return snd_soc_suspend_device(&pdev->dev); +} + +static int wm8350_codec_resume(struct platform_device *pdev) +{ + return snd_soc_resume_device(&pdev->dev); +} +#else +#define wm8350_codec_suspend NULL +#define wm8350_codec_resume NULL +#endif + static struct platform_driver wm8350_codec_driver = { .driver = { .name = "wm8350-codec", @@ -1667,6 +1702,8 @@ static struct platform_driver wm8350_codec_driver = { }, .probe = wm8350_codec_probe, .remove = __devexit_p(wm8350_codec_remove), + .suspend = wm8350_codec_suspend, + .resume = wm8350_codec_resume, }; static __init int wm8350_init(void) |