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Diffstat (limited to 'sound/soc/codecs/pcm512x.c')
-rw-r--r--sound/soc/codecs/pcm512x.c36
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