[PATCH] ASoC: amd: acp: Add setbias level for rt5682s codec in machine driver

[PATCH] ASoC: amd: acp: Add setbias level for rt5682s codec in machine driver

[Venkata Prasad Potturu]

Add set_bais_level function for rt5682s codec to enable bclk and lrclk
before codec widgets power on and disable bclk and lrclk after widgets
power down, to avoid pop noise

Signed-off-by: Venkata Prasad Potturu <venkataprasad.potturu@amd.com>
---
 sound/soc/amd/acp/acp-mach-common.c | 62 ++++++++++++++++++++++++++---
 1 file changed, 56 insertions(+), 6 deletions(-)

diff --git a/sound/soc/amd/acp/acp-mach-common.c b/sound/soc/amd/acp/acp-mach-common.c
index 4c69cb6e3400..a78cf29387a7 100644
--- a/sound/soc/amd/acp/acp-mach-common.c
+++ b/sound/soc/amd/acp/acp-mach-common.c
@@ -167,11 +167,14 @@ static int acp_card_hs_startup(struct snd_pcm_substream *substream)
 				      &constraints_channels);
 	snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_RATE,
 				      &constraints_rates);
-	if (!drvdata->soc_mclk) {
-		ret = acp_clk_enable(drvdata);
-		if (ret < 0) {
-			dev_err(rtd->card->dev, "Failed to enable HS clk: %d\n", ret);
-			return ret;
+
+	if (strcmp(codec_dai->name, "rt5682s-aif1") && strcmp(codec_dai->name, "rt5682s-aif2")) {
+		if (!drvdata->soc_mclk) {
+			ret = acp_clk_enable(drvdata);
+			if (ret < 0) {
+				dev_err(rtd->card->dev, "Failed to enable HS clk: %d\n", ret);
+				return ret;
+			}
 		}
 	}
 
@@ -280,7 +283,6 @@ static int acp_card_rt5682s_init(struct snd_soc_pcm_runtime *rtd)
 
 static const struct snd_soc_ops acp_card_rt5682s_ops = {
 	.startup = acp_card_hs_startup,
-	.shutdown = acp_card_shutdown,
 };
 
 static const unsigned int dmic_channels[] = {
@@ -570,6 +572,52 @@ SND_SOC_DAILINK_DEF(sof_dmic,
 SND_SOC_DAILINK_DEF(pdm_dmic,
 	DAILINK_COMP_ARRAY(COMP_CPU("acp-pdm-dmic")));
 
+static int acp_rtk_set_bias_level(struct snd_soc_card *card,
+				  struct snd_soc_dapm_context *dapm,
+				  enum snd_soc_bias_level level)
+{
+	struct snd_soc_component *component = dapm->component;
+	struct acp_card_drvdata *drvdata = card->drvdata;
+	int ret = 0;
+
+	if (!component)
+		return 0;
+
+	if (strncmp(component->name, "i2c-RTL5682", 11) &&
+	    strncmp(component->name, "i2c-10EC1019", 12))
+		return 0;
+
+	/*
+	 * For Realtek's codec and amplifier components,
+	 * the lrck and bclk must be enabled brfore their all dapms be powered on,
+	 * and must be disabled after their all dapms be powered down
+	 * to avoid any pop.
+	 */
+	switch (level) {
+	case SND_SOC_BIAS_STANDBY:
+		if (snd_soc_dapm_get_bias_level(dapm) == SND_SOC_BIAS_OFF) {
+			clk_set_rate(drvdata->wclk, 48000);
+			clk_set_rate(drvdata->bclk, 48000 * 64);
+
+			/* Increase bclk's enable_count */
+			ret = clk_prepare_enable(drvdata->bclk);
+			if (ret < 0)
+				dev_err(component->dev, "Failed to enable bclk %d\n", ret);
+		} else {
+			/*
+			 * Decrease bclk's enable_count.
+			 * While the enable_count is 0, the bclk would be closed.
+			 */
+			clk_disable_unprepare(drvdata->bclk);
+		}
+		break;
+	default:
+		break;
+	}
+
+	return ret;
+}
+
 int acp_sofdsp_dai_links_create(struct snd_soc_card *card)
 {
 	struct snd_soc_dai_link *links;
@@ -730,6 +778,7 @@ int acp_sofdsp_dai_links_create(struct snd_soc_card *card)
 
 	card->dai_link = links;
 	card->num_links = num_links;
+	card->set_bias_level = acp_rtk_set_bias_level;
 
 	return 0;
 }
@@ -907,6 +956,7 @@ int acp_legacy_dai_links_create(struct snd_soc_card *card)
 
 	card->dai_link = links;
 	card->num_links = num_links;
+	card->set_bias_level = acp_rtk_set_bias_level;
 
 	return 0;
 }
-- 
2.25.1

[PATCH] ASoC: amd: acp: Add setbias level for rt5682s codec in machine driver

[Venkata Prasad Potturu]

Add set_bais_level function for rt5682s codec to enable bclk and lrclk
before codec widgets power on and disable bclk and lrclk after widgets
power down, to avoid pop noise

Signed-off-by: Venkata Prasad Potturu <venkataprasad.potturu@amd.com>
---
 sound/soc/amd/acp/acp-mach-common.c | 62 ++++++++++++++++++++++++++---
 1 file changed, 56 insertions(+), 6 deletions(-)

diff --git a/sound/soc/amd/acp/acp-mach-common.c b/sound/soc/amd/acp/acp-mach-common.c
index 4c69cb6e3400..a78cf29387a7 100644
--- a/sound/soc/amd/acp/acp-mach-common.c
+++ b/sound/soc/amd/acp/acp-mach-common.c
@@ -167,11 +167,14 @@ static int acp_card_hs_startup(struct snd_pcm_substream *substream)
 				      &constraints_channels);
 	snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_RATE,
 				      &constraints_rates);
-	if (!drvdata->soc_mclk) {
-		ret = acp_clk_enable(drvdata);
-		if (ret < 0) {
-			dev_err(rtd->card->dev, "Failed to enable HS clk: %d\n", ret);
-			return ret;
+
+	if (strcmp(codec_dai->name, "rt5682s-aif1") && strcmp(codec_dai->name, "rt5682s-aif2")) {
+		if (!drvdata->soc_mclk) {
+			ret = acp_clk_enable(drvdata);
+			if (ret < 0) {
+				dev_err(rtd->card->dev, "Failed to enable HS clk: %d\n", ret);
+				return ret;
+			}
 		}
 	}
 
@@ -280,7 +283,6 @@ static int acp_card_rt5682s_init(struct snd_soc_pcm_runtime *rtd)
 
 static const struct snd_soc_ops acp_card_rt5682s_ops = {
 	.startup = acp_card_hs_startup,
-	.shutdown = acp_card_shutdown,
 };
 
 static const unsigned int dmic_channels[] = {
@@ -570,6 +572,52 @@ SND_SOC_DAILINK_DEF(sof_dmic,
 SND_SOC_DAILINK_DEF(pdm_dmic,
 	DAILINK_COMP_ARRAY(COMP_CPU("acp-pdm-dmic")));
 
+static int acp_rtk_set_bias_level(struct snd_soc_card *card,
+				  struct snd_soc_dapm_context *dapm,
+				  enum snd_soc_bias_level level)
+{
+	struct snd_soc_component *component = dapm->component;
+	struct acp_card_drvdata *drvdata = card->drvdata;
+	int ret = 0;
+
+	if (!component)
+		return 0;
+
+	if (strncmp(component->name, "i2c-RTL5682", 11) &&
+	    strncmp(component->name, "i2c-10EC1019", 12))
+		return 0;
+
+	/*
+	 * For Realtek's codec and amplifier components,
+	 * the lrck and bclk must be enabled brfore their all dapms be powered on,
+	 * and must be disabled after their all dapms be powered down
+	 * to avoid any pop.
+	 */
+	switch (level) {
+	case SND_SOC_BIAS_STANDBY:
+		if (snd_soc_dapm_get_bias_level(dapm) == SND_SOC_BIAS_OFF) {
+			clk_set_rate(drvdata->wclk, 48000);
+			clk_set_rate(drvdata->bclk, 48000 * 64);
+
+			/* Increase bclk's enable_count */
+			ret = clk_prepare_enable(drvdata->bclk);
+			if (ret < 0)
+				dev_err(component->dev, "Failed to enable bclk %d\n", ret);
+		} else {
+			/*
+			 * Decrease bclk's enable_count.
+			 * While the enable_count is 0, the bclk would be closed.
+			 */
+			clk_disable_unprepare(drvdata->bclk);
+		}
+		break;
+	default:
+		break;
+	}
+
+	return ret;
+}
+
 int acp_sofdsp_dai_links_create(struct snd_soc_card *card)
 {
 	struct snd_soc_dai_link *links;
@@ -730,6 +778,7 @@ int acp_sofdsp_dai_links_create(struct snd_soc_card *card)
 
 	card->dai_link = links;
 	card->num_links = num_links;
+	card->set_bias_level = acp_rtk_set_bias_level;
 
 	return 0;
 }
@@ -907,6 +956,7 @@ int acp_legacy_dai_links_create(struct snd_soc_card *card)
 
 	card->dai_link = links;
 	card->num_links = num_links;
+	card->set_bias_level = acp_rtk_set_bias_level;
 
 	return 0;
 }
-- 
2.25.1

Re: [PATCH] ASoC: amd: acp: Add setbias level for rt5682s codec in machine driver

[Mark Brown]

On Wed, 21 Sep 2022 14:37:44 +0530, Venkata Prasad Potturu wrote:
> Add set_bais_level function for rt5682s codec to enable bclk and lrclk
> before codec widgets power on and disable bclk and lrclk after widgets
> power down, to avoid pop noise
> 
> 

Applied to

   https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound.git for-next

Thanks!

[1/1] ASoC: amd: acp: Add setbias level for rt5682s codec in machine driver
      commit: 9e693e81745f03845788ef409f03a39e92f8dd48

All being well this means that it will be integrated into the linux-next
tree (usually sometime in the next 24 hours) and sent to Linus during
the next merge window (or sooner if it is a bug fix), however if
problems are discovered then the patch may be dropped or reverted.

You may get further e-mails resulting from automated or manual testing
and review of the tree, please engage with people reporting problems and
send followup patches addressing any issues that are reported if needed.

If any updates are required or you are submitting further changes they
should be sent as incremental updates against current git, existing
patches will not be replaced.

Please add any relevant lists and maintainers to the CCs when replying
to this mail.

Thanks,
Mark

Re: [PATCH] ASoC: amd: acp: Add setbias level for rt5682s codec in machine driver

[Mark Brown]

On Wed, 21 Sep 2022 14:37:44 +0530, Venkata Prasad Potturu wrote:
> Add set_bais_level function for rt5682s codec to enable bclk and lrclk
> before codec widgets power on and disable bclk and lrclk after widgets
> power down, to avoid pop noise
> 
> 

Applied to

   https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound.git for-next

Thanks!

[1/1] ASoC: amd: acp: Add setbias level for rt5682s codec in machine driver
      commit: 9e693e81745f03845788ef409f03a39e92f8dd48

All being well this means that it will be integrated into the linux-next
tree (usually sometime in the next 24 hours) and sent to Linus during
the next merge window (or sooner if it is a bug fix), however if
problems are discovered then the patch may be dropped or reverted.

You may get further e-mails resulting from automated or manual testing
and review of the tree, please engage with people reporting problems and
send followup patches addressing any issues that are reported if needed.

If any updates are required or you are submitting further changes they
should be sent as incremental updates against current git, existing
patches will not be replaced.

Please add any relevant lists and maintainers to the CCs when replying
to this mail.

Thanks,
Mark