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Commit 2c118b4c authored by Richard Fitzgerald's avatar Richard Fitzgerald Committed by Mark Brown
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ASoC: arizona: Add DVFS handling for sample rate control 



The WM8997 and WM5102 codecs need to boost DVFS for higher sample rates.

Signed-off-by: default avatarRichard Fitzgerald <rf@opensource.wolfsonmicro.com>
Signed-off-by: default avatarCharles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: default avatarMark Brown <broonie@kernel.org>
parent 81ac58b1

sound/soc/codecs/arizona.c

+18 −1
Original line number Diff line number Diff line
@@ -1394,7 +1394,7 @@ static int arizona_hw_params_rate(struct snd_pcm_substream *substream, 
	struct arizona_priv *priv = snd_soc_codec_get_drvdata(codec);

	struct arizona_dai_priv *dai_priv = &priv->dai[dai->id - 1];

	int base = dai->driver->base;

	int i, sr_val;

	int i, sr_val, ret;



	/*

	 * We will need to be more flexible than this in future,
@@ -1410,6 +1410,23 @@ static int arizona_hw_params_rate(struct snd_pcm_substream *substream, 
	}

	sr_val = i;



	switch (priv->arizona->type) {

	case WM5102:

	case WM8997:

		if (arizona_sr_vals[sr_val] >= 88200)

			ret = arizona_dvfs_up(codec, ARIZONA_DVFS_SR1_RQ);

		else

			ret = arizona_dvfs_down(codec, ARIZONA_DVFS_SR1_RQ);



		if (ret) {

			arizona_aif_err(dai, "Failed to change DVFS %d\n", ret);

			return ret;

		}

		break;

	default:

		break;

	}



	switch (dai_priv->clk) {

	case ARIZONA_CLK_SYSCLK:

		switch (priv->arizona->type) {