diff options
Diffstat (limited to 'sound/soc/codecs/pcm512x.c')
| -rw-r--r-- | sound/soc/codecs/pcm512x.c | 36 |
1 files changed, 33 insertions, 3 deletions
diff --git a/sound/soc/codecs/pcm512x.c b/sound/soc/codecs/pcm512x.c index 89059a673c..aa8edf87b7 100644 --- a/sound/soc/codecs/pcm512x.c +++ b/sound/soc/codecs/pcm512x.c @@ -48,6 +48,7 @@ struct pcm512x_priv { int mute; struct mutex mutex; unsigned int bclk_ratio; + int force_pll_on; }; /* @@ -1258,10 +1259,34 @@ static int pcm512x_hw_params(struct snd_pcm_substream *substream, return ret; } - ret = regmap_update_bits(pcm512x->regmap, PCM512x_PLL_EN, - PCM512x_PLLE, 0); + if (!pcm512x->force_pll_on) { + ret = regmap_update_bits(pcm512x->regmap, + PCM512x_PLL_EN, PCM512x_PLLE, 0); + } else { + /* provide minimum PLL config for TAS575x clocking + * and leave PLL enabled + */ + ret = regmap_write(pcm512x->regmap, + PCM512x_PLL_COEFF_0, 0x01); + if (ret != 0) { + dev_err(component->dev, + "Failed to set pll coefficient: %d\n", ret); + return ret; + } + ret = regmap_write(pcm512x->regmap, + PCM512x_PLL_COEFF_1, 0x04); + if (ret != 0) { + dev_err(component->dev, + "Failed to set pll coefficient: %d\n", ret); + return ret; + } + ret = regmap_write(pcm512x->regmap, + PCM512x_PLL_EN, 0x01); + dev_dbg(component->dev, "Enabling PLL for TAS575x\n"); + } + if (ret != 0) { - dev_err(component->dev, "Failed to disable pll: %d\n", ret); + dev_err(component->dev, "Failed to set pll mode: %d\n", ret); return ret; } } @@ -1659,6 +1684,11 @@ int pcm512x_probe(struct device *dev, struct regmap *regmap) ret = -EINVAL; goto err_pm; } + + if (!strcmp(np->name, "tas5756") || + !strcmp(np->name, "tas5754")) + pcm512x->force_pll_on = 1; + dev_dbg(dev, "Device ID: %s\n", np->name); } #endif |