diff options
Diffstat (limited to 'sound/soc/codecs/wm8990.c')
| -rw-r--r-- | sound/soc/codecs/wm8990.c | 43 |
1 files changed, 34 insertions, 9 deletions
diff --git a/sound/soc/codecs/wm8990.c b/sound/soc/codecs/wm8990.c index 572d22b0880..5b5afc14447 100644 --- a/sound/soc/codecs/wm8990.c +++ b/sound/soc/codecs/wm8990.c @@ -106,6 +106,7 @@ static const u16 wm8990_reg[] = { 0x0008, /* R60 - PLL1 */ 0x0031, /* R61 - PLL2 */ 0x0026, /* R62 - PLL3 */ + 0x0000, /* R63 - Driver internal */ }; /* @@ -126,10 +127,9 @@ static inline void wm8990_write_reg_cache(struct snd_soc_codec *codec, unsigned int reg, unsigned int value) { u16 *cache = codec->reg_cache; - BUG_ON(reg > (ARRAY_SIZE(wm8990_reg)) - 1); - /* Reset register is uncached */ - if (reg == 0) + /* Reset register and reserved registers are uncached */ + if (reg == 0 || reg > ARRAY_SIZE(wm8990_reg) - 1) return; cache[reg] = value; @@ -1172,7 +1172,8 @@ static int wm8990_set_dai_clkdiv(struct snd_soc_dai *codec_dai, * Set PCM DAI bit size and sample rate. */ static int wm8990_hw_params(struct snd_pcm_substream *substream, - struct snd_pcm_hw_params *params) + struct snd_pcm_hw_params *params, + struct snd_soc_dai *dai) { struct snd_soc_pcm_runtime *rtd = substream->private_data; struct snd_soc_device *socdev = rtd->socdev; @@ -1222,8 +1223,14 @@ static int wm8990_set_bias_level(struct snd_soc_codec *codec, switch (level) { case SND_SOC_BIAS_ON: break; + case SND_SOC_BIAS_PREPARE: + /* VMID=2*50k */ + val = wm8990_read_reg_cache(codec, WM8990_POWER_MANAGEMENT_1) & + ~WM8990_VMID_MODE_MASK; + wm8990_write(codec, WM8990_POWER_MANAGEMENT_1, val | 0x2); break; + case SND_SOC_BIAS_STANDBY: if (codec->bias_level == SND_SOC_BIAS_OFF) { /* Enable all output discharge bits */ @@ -1272,10 +1279,17 @@ static int wm8990_set_bias_level(struct snd_soc_codec *codec, /* disable POBCTRL, SOFT_ST and BUFDCOPEN */ wm8990_write(codec, WM8990_ANTIPOP2, WM8990_BUFIOEN); - } else { - /* ON -> standby */ + /* Enable workaround for ADC clocking issue. */ + wm8990_write(codec, WM8990_EXT_ACCESS_ENA, 0x2); + wm8990_write(codec, WM8990_EXT_CTL1, 0xa003); + wm8990_write(codec, WM8990_EXT_ACCESS_ENA, 0); } + + /* VMID=2*250k */ + val = wm8990_read_reg_cache(codec, WM8990_POWER_MANAGEMENT_1) & + ~WM8990_VMID_MODE_MASK; + wm8990_write(codec, WM8990_POWER_MANAGEMENT_1, val | 0x4); break; case SND_SOC_BIAS_OFF: @@ -1349,8 +1363,7 @@ struct snd_soc_dai wm8990_dai = { .rates = WM8990_RATES, .formats = WM8990_FORMATS,}, .ops = { - .hw_params = wm8990_hw_params,}, - .dai_ops = { + .hw_params = wm8990_hw_params, .digital_mute = wm8990_mute, .set_fmt = wm8990_set_dai_fmt, .set_clkdiv = wm8990_set_dai_clkdiv, @@ -1449,7 +1462,7 @@ static int wm8990_init(struct snd_soc_device *socdev) wm8990_add_controls(codec); wm8990_add_widgets(codec); - ret = snd_soc_register_card(socdev); + ret = snd_soc_init_card(socdev); if (ret < 0) { printk(KERN_ERR "wm8990: failed to register card\n"); goto card_err; @@ -1630,6 +1643,18 @@ struct snd_soc_codec_device soc_codec_dev_wm8990 = { }; EXPORT_SYMBOL_GPL(soc_codec_dev_wm8990); +static int __init wm8990_modinit(void) +{ + return snd_soc_register_dai(&wm8990_dai); +} +module_init(wm8990_modinit); + +static void __exit wm8990_exit(void) +{ + snd_soc_unregister_dai(&wm8990_dai); +} +module_exit(wm8990_exit); + MODULE_DESCRIPTION("ASoC WM8990 driver"); MODULE_AUTHOR("Liam Girdwood"); MODULE_LICENSE("GPL"); |