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ASoC: mediatek: Turn AFE on/off in runtime resume/suspend 

AFE is actually allowed to be turn on before configuration of DAIs
since each DAI has its own enabling control. Turn on/off AFE in
runtime resume/suspend to avoid AFE being shut down when closing a DAI
while other DAIs are still active.

Signed-off-by: Koro Chen <koro.chen@mediatek.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Koro Chen 2015-12-22 11:11:34 +08:00 committed by Mark Brown
parent 8d6f88ce96
commit c1f2a34284
1 changed files with 6 additions and 18 deletions
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24
sound/soc/mediatek/mtk-afe-pcm.c
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@ -382,9 +382,6 @@ static void mtk_afe_i2s_shutdown(struct snd_pcm_substream *substream,
AUD_TCON0_PDN_22M | AUD_TCON0_PDN_24M,
AUD_TCON0_PDN_22M | AUD_TCON0_PDN_24M);
mtk_afe_dais_disable_clks(afe, afe->clocks[MTK_CLK_I2S1_M], NULL);
/* disable AFE */
regmap_update_bits(afe->regmap, AFE_DAC_CON0, 0x1, 0);
}
static int mtk_afe_i2s_prepare(struct snd_pcm_substream *substream,
@ -433,9 +430,6 @@ static void mtk_afe_hdmi_shutdown(struct snd_pcm_substream *substream,
mtk_afe_dais_disable_clks(afe, afe->clocks[MTK_CLK_I2S3_M],
afe->clocks[MTK_CLK_I2S3_B]);
/* disable AFE */
regmap_update_bits(afe->regmap, AFE_DAC_CON0, 0x1, 0);
}
static int mtk_afe_hdmi_prepare(struct snd_pcm_substream *substream,
@ -679,17 +673,6 @@ static int mtk_afe_dais_hw_free(struct snd_pcm_substream *substream,
return snd_pcm_lib_free_pages(substream);
}
static int mtk_afe_dais_prepare(struct snd_pcm_substream *substream,
struct snd_soc_dai *dai)
{
struct snd_soc_pcm_runtime *rtd = substream->private_data;
struct mtk_afe *afe = snd_soc_platform_get_drvdata(rtd->platform);
/* enable AFE */
regmap_update_bits(afe->regmap, AFE_DAC_CON0, 0x1, 0x1);
return 0;
}
static int mtk_afe_dais_trigger(struct snd_pcm_substream *substream, int cmd,
struct snd_soc_dai *dai)
{
@ -757,7 +740,6 @@ static const struct snd_soc_dai_ops mtk_afe_dai_ops = {
.shutdown = mtk_afe_dais_shutdown,
.hw_params = mtk_afe_dais_hw_params,
.hw_free = mtk_afe_dais_hw_free,
.prepare = mtk_afe_dais_prepare,
.trigger = mtk_afe_dais_trigger,
};
@ -1118,6 +1100,9 @@ static int mtk_afe_runtime_suspend(struct device *dev)
{
struct mtk_afe *afe = dev_get_drvdata(dev);
/* disable AFE */
regmap_update_bits(afe->regmap, AFE_DAC_CON0, 0x1, 0);
/* disable AFE clk */
regmap_update_bits(afe->regmap, AUDIO_TOP_CON0,
AUD_TCON0_PDN_AFE, AUD_TCON0_PDN_AFE);
@ -1164,6 +1149,9 @@ static int mtk_afe_runtime_resume(struct device *dev)
/* unmask all IRQs */
regmap_update_bits(afe->regmap, AFE_IRQ_MCU_EN, 0xff, 0xff);
/* enable AFE */
regmap_update_bits(afe->regmap, AFE_DAC_CON0, 0x1, 0x1);
return 0;
err_bck0: