Unverified Commit 1dfdbe73 authored by Codrin Ciubotariu's avatar Codrin Ciubotariu Committed by Mark Brown
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ASoC: atmel-classd: remove codec component 



The CPU and the codec both are represented now as components, so for
CLASS-D we are registering two componenets with the same name. Since
there is no actual codec, we will merge the codec component into the
CPU one and use a dummy codec instead, for the DAI link.
As a bonus, debugfs will no longer report an error when will try to
create entries for both componenets with the same name.

Signed-off-by: default avatarCodrin Ciubotariu <codrin.ciubotariu@microchip.com>
Link: https://lore.kernel.org/r/20200708101249.2626560-1-codrin.ciubotariu@microchip.com


Signed-off-by: default avatarMark Brown <broonie@kernel.org>
parent 6940701c

sound/soc/atmel/atmel-classd.c

+47 −85
Original line number Diff line number Diff line
@@ -120,38 +120,20 @@ static int atmel_classd_cpu_dai_startup(struct snd_pcm_substream *substream, 
{

	struct snd_soc_pcm_runtime *rtd = substream->private_data;

	struct atmel_classd *dd = snd_soc_card_get_drvdata(rtd->card);

	int err;



	regmap_write(dd->regmap, CLASSD_THR, 0x0);



	return clk_prepare_enable(dd->pclk);

}



static void atmel_classd_cpu_dai_shutdown(struct snd_pcm_substream *substream,

					struct snd_soc_dai *cpu_dai)

{

	struct snd_soc_pcm_runtime *rtd = substream->private_data;

	struct atmel_classd *dd = snd_soc_card_get_drvdata(rtd->card);



	err = clk_prepare_enable(dd->pclk);

	if (err)

		return err;

	err = clk_prepare_enable(dd->gclk);

	if (err) {

		clk_disable_unprepare(dd->pclk);

		return err;

	}

	return 0;

}



static const struct snd_soc_dai_ops atmel_classd_cpu_dai_ops = {

	.startup	= atmel_classd_cpu_dai_startup,

	.shutdown	= atmel_classd_cpu_dai_shutdown,

};



static struct snd_soc_dai_driver atmel_classd_cpu_dai = {

	.playback = {

		.channels_min	= 1,

		.channels_max	= 2,

		.rates		= ATMEL_CLASSD_RATES,

		.formats	= SNDRV_PCM_FMTBIT_S16_LE,},

	.ops = &atmel_classd_cpu_dai_ops,

};



static const struct snd_soc_component_driver atmel_classd_cpu_dai_component = {

	.name = "atmel-classd",

};



/* platform */

static int
@@ -306,31 +288,10 @@ static int atmel_classd_component_resume(struct snd_soc_component *component) 
	return regcache_sync(dd->regmap);

}



static struct snd_soc_component_driver soc_component_dev_classd = {

	.probe			= atmel_classd_component_probe,

	.resume			= atmel_classd_component_resume,

	.controls		= atmel_classd_snd_controls,

	.num_controls		= ARRAY_SIZE(atmel_classd_snd_controls),

	.idle_bias_on		= 1,

	.use_pmdown_time	= 1,

	.endianness		= 1,

	.non_legacy_dai_naming	= 1,

};



/* codec dai component */

static int atmel_classd_codec_dai_startup(struct snd_pcm_substream *substream,

				struct snd_soc_dai *codec_dai)

{

	struct snd_soc_pcm_runtime *rtd = substream->private_data;

	struct atmel_classd *dd = snd_soc_card_get_drvdata(rtd->card);



	return clk_prepare_enable(dd->gclk);

}



static int atmel_classd_codec_dai_digital_mute(struct snd_soc_dai *codec_dai,

static int atmel_classd_cpu_dai_digital_mute(struct snd_soc_dai *cpu_dai,

					     int mute)

{

	struct snd_soc_component *component = codec_dai->component;

	struct snd_soc_component *component = cpu_dai->component;

	u32 mask, val;



	mask = CLASSD_MR_LMUTE_MASK | CLASSD_MR_RMUTE_MASK;
@@ -373,13 +334,13 @@ static struct { 
};



static int

atmel_classd_codec_dai_hw_params(struct snd_pcm_substream *substream,

atmel_classd_cpu_dai_hw_params(struct snd_pcm_substream *substream,

			       struct snd_pcm_hw_params *params,

			    struct snd_soc_dai *codec_dai)

			       struct snd_soc_dai *cpu_dai)

{

	struct snd_soc_pcm_runtime *rtd = substream->private_data;

	struct atmel_classd *dd = snd_soc_card_get_drvdata(rtd->card);

	struct snd_soc_component *component = codec_dai->component;

	struct snd_soc_component *component = cpu_dai->component;

	int fs;

	int i, best, best_val, cur_val, ret;

	u32 mask, val;
@@ -417,8 +378,8 @@ atmel_classd_codec_dai_hw_params(struct snd_pcm_substream *substream, 
}



static void

atmel_classd_codec_dai_shutdown(struct snd_pcm_substream *substream,

			    struct snd_soc_dai *codec_dai)

atmel_classd_cpu_dai_shutdown(struct snd_pcm_substream *substream,

			      struct snd_soc_dai *cpu_dai)

{

	struct snd_soc_pcm_runtime *rtd = substream->private_data;

	struct atmel_classd *dd = snd_soc_card_get_drvdata(rtd->card);
@@ -426,10 +387,10 @@ atmel_classd_codec_dai_shutdown(struct snd_pcm_substream *substream, 
	clk_disable_unprepare(dd->gclk);

}



static int atmel_classd_codec_dai_prepare(struct snd_pcm_substream *substream,

					struct snd_soc_dai *codec_dai)

static int atmel_classd_cpu_dai_prepare(struct snd_pcm_substream *substream,

					struct snd_soc_dai *cpu_dai)

{

	struct snd_soc_component *component = codec_dai->component;

	struct snd_soc_component *component = cpu_dai->component;



	snd_soc_component_update_bits(component, CLASSD_MR,

				CLASSD_MR_LEN_MASK | CLASSD_MR_REN_MASK,
@@ -439,10 +400,10 @@ static int atmel_classd_codec_dai_prepare(struct snd_pcm_substream *substream, 
	return 0;

}



static int atmel_classd_codec_dai_trigger(struct snd_pcm_substream *substream,

					int cmd, struct snd_soc_dai *codec_dai)

static int atmel_classd_cpu_dai_trigger(struct snd_pcm_substream *substream,

					int cmd, struct snd_soc_dai *cpu_dai)

{

	struct snd_soc_component *component = codec_dai->component;

	struct snd_soc_component *component = cpu_dai->component;

	u32 mask, val;



	mask = CLASSD_MR_LEN_MASK | CLASSD_MR_REN_MASK;
@@ -468,19 +429,16 @@ static int atmel_classd_codec_dai_trigger(struct snd_pcm_substream *substream, 
	return 0;

}



static const struct snd_soc_dai_ops atmel_classd_codec_dai_ops = {

	.digital_mute	= atmel_classd_codec_dai_digital_mute,

	.startup	= atmel_classd_codec_dai_startup,

	.shutdown	= atmel_classd_codec_dai_shutdown,

	.hw_params	= atmel_classd_codec_dai_hw_params,

	.prepare	= atmel_classd_codec_dai_prepare,

	.trigger	= atmel_classd_codec_dai_trigger,

static const struct snd_soc_dai_ops atmel_classd_cpu_dai_ops = {

	.startup        = atmel_classd_cpu_dai_startup,

	.shutdown       = atmel_classd_cpu_dai_shutdown,

	.digital_mute	= atmel_classd_cpu_dai_digital_mute,

	.hw_params	= atmel_classd_cpu_dai_hw_params,

	.prepare	= atmel_classd_cpu_dai_prepare,

	.trigger	= atmel_classd_cpu_dai_trigger,

};



#define ATMEL_CLASSD_CODEC_DAI_NAME  "atmel-classd-hifi"



static struct snd_soc_dai_driver atmel_classd_codec_dai = {

	.name = ATMEL_CLASSD_CODEC_DAI_NAME,

static struct snd_soc_dai_driver atmel_classd_cpu_dai = {

	.playback = {

		.stream_name	= "Playback",

		.channels_min	= 1,
@@ -488,7 +446,18 @@ static struct snd_soc_dai_driver atmel_classd_codec_dai = { 
		.rates		= ATMEL_CLASSD_RATES,

		.formats	= SNDRV_PCM_FMTBIT_S16_LE,

	},

	.ops = &atmel_classd_codec_dai_ops,

	.ops = &atmel_classd_cpu_dai_ops,

};



static const struct snd_soc_component_driver atmel_classd_cpu_dai_component = {

	.name			= "atmel-classd",

	.probe			= atmel_classd_component_probe,

	.resume			= atmel_classd_component_resume,

	.controls		= atmel_classd_snd_controls,

	.num_controls		= ARRAY_SIZE(atmel_classd_snd_controls),

	.idle_bias_on		= 1,

	.use_pmdown_time	= 1,

	.endianness		= 1,

};



/* ASoC sound card */
@@ -517,9 +486,9 @@ static int atmel_classd_asoc_card_init(struct device *dev, 


	dai_link->name			= "CLASSD";

	dai_link->stream_name		= "CLASSD PCM";

	dai_link->codecs->dai_name	= ATMEL_CLASSD_CODEC_DAI_NAME;

	dai_link->codecs->dai_name	= "snd-soc-dummy-dai";

	dai_link->cpus->dai_name	= dev_name(dev);

	dai_link->codecs->name		= dev_name(dev);

	dai_link->codecs->name		= "snd-soc-dummy";

	dai_link->platforms->name	= dev_name(dev);



	card->dai_link	= dai_link;
@@ -620,13 +589,6 @@ static int atmel_classd_probe(struct platform_device *pdev) 
		return ret;

	}



	ret = devm_snd_soc_register_component(dev, &soc_component_dev_classd,

					&atmel_classd_codec_dai, 1);

	if (ret) {

		dev_err(dev, "could not register component: %d\n", ret);

		return ret;

	}



	/* register sound card */

	card = devm_kzalloc(dev, sizeof(*card), GFP_KERNEL);

	if (!card) {

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