[PATCH v7 0/3] ASoC: qcom: lpass: Switch VA/WSA macros to PM clock framework

[PATCH v7 0/3] ASoC: qcom: lpass: Switch VA/WSA macros to PM clock framework

[Ajay Kumar Nandam]

Hi,

This series converts the LPASS WSA and VA macro codec drivers to the
PM clock framework for runtime PM clock handling.

The runtime clock enable/disable sequencing is moved to PM clock helpers
for clocks described in device tree, while regcache state handling remains
in the codec runtime PM callbacks. This keeps register cache synchronization
explicit in the driver and lets runtime PM drop codec clock votes when the
macros are idle.

The series also keeps WSA MCLK-output clock registration resource-managed
by switching it to devm_clk_hw_register(), which allows the empty WSA remove
callback to be dropped.

Changes since v6:
- Dropped the now-empty WSA macro remove callback.
- Sorted the VA macro pm_clock.h include.
- Re-sent as v7 with proper cover-letter threading after the broken v6
  resend was accidentally sent as separate threads.

Changes since v5:
- Rebased to current linux-next/master and regenerated as a standalone
  series that applies cleanly.
- Added depends on PM_CLK for SND_SOC_LPASS_WSA_MACRO and
  SND_SOC_LPASS_VA_MACRO since PM clock APIs are used.
- Improved runtime-PM probe/resume unwind handling in WSA/VA error paths.
- Kept runtime autosuspend delay at 100 ms in both PM-clock conversion
  patches.

Link: https://lore.kernel.org/r/20260604124823.3467457-1-ajay.nandam@oss.qualcomm.com
Link: https://lore.kernel.org/r/20260623071708.2822269-1-ajay.nandam@oss.qualcomm.com
Signed-off-by: Ajay Kumar Nandam <ajay.nandam@oss.qualcomm.com>
---
Ajay Kumar Nandam (3):
      ASoC: codecs: lpass-wsa-macro: Switch to PM clock framework for runtime PM
      ASoC: codecs: lpass-va-macro: Switch to PM clock framework for runtime PM
      ASoC: codecs: lpass-wsa-macro: Use devm_clk_hw_register() for MCLK output

 sound/soc/codecs/Kconfig           |   2 +
 sound/soc/codecs/lpass-va-macro.c  | 142 +++++++++++++++++++++----------------
 sound/soc/codecs/lpass-wsa-macro.c | 133 ++++++++++++++--------------------
 3 files changed, 134 insertions(+), 143 deletions(-)
---
base-commit: 4e5dfb7c84012007c3c7061126491bbc92d71bf1
change-id: 20260623-xo-sd-codec-v7-b4-8769da3a41ad

Best regards,
--  
Ajay Kumar Nandam <ajay.nandam@oss.qualcomm.com>

[PATCH v7 1/3] ASoC: codecs: lpass-wsa-macro: Switch to PM clock framework for runtime PM

[Ajay Kumar Nandam]

Convert the LPASS WSA macro codec driver to runtime PM clock management by
using the PM clock framework.

Replace manual macro/dcodec/mclk/npl/fsgen clock toggling with PM clock
helpers and runtime PM callbacks. Keep the SWR gate runtime PM reference
from SWR clock enable until disable so autosuspend does not gate clocks
while SWR is still prepared.

Set autosuspend delay to 100 ms so PM-clock-managed votes are dropped soon
after idle while still avoiding suspend/resume churn on short gaps.

Add a PM_CLK dependency to SND_SOC_LPASS_WSA_MACRO since this patch
introduces PM clock APIs.

Tighten error unwind by checking pm_runtime_put_sync_suspend() in probe and
by restoring regcache state if pm_clk_resume()/regcache_sync() fails.

Suggested-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Ajay Kumar Nandam <ajay.nandam@oss.qualcomm.com>
---
 sound/soc/codecs/Kconfig           |   1 +
 sound/soc/codecs/lpass-wsa-macro.c | 131 +++++++++++++++----------------------
 2 files changed, 53 insertions(+), 79 deletions(-)

diff --git a/sound/soc/codecs/Kconfig b/sound/soc/codecs/Kconfig
index 252f683be3c1..92cfa623782c 100644
--- a/sound/soc/codecs/Kconfig
+++ b/sound/soc/codecs/Kconfig
@@ -2897,6 +2897,7 @@ config SND_SOC_LPASS_MACRO_COMMON
 
 config SND_SOC_LPASS_WSA_MACRO
 	depends on COMMON_CLK
+	depends on PM_CLK
 	select REGMAP_MMIO
 	select SND_SOC_LPASS_MACRO_COMMON
 	tristate "Qualcomm WSA Macro in LPASS(Low Power Audio SubSystem)"
diff --git a/sound/soc/codecs/lpass-wsa-macro.c b/sound/soc/codecs/lpass-wsa-macro.c
index 5ad0448af649..718564ee381e 100644
--- a/sound/soc/codecs/lpass-wsa-macro.c
+++ b/sound/soc/codecs/lpass-wsa-macro.c
@@ -12,6 +12,7 @@
 #include <linux/clk-provider.h>
 #include <sound/soc.h>
 #include <sound/soc-dapm.h>
+#include <linux/pm_clock.h>
 #include <linux/pm_runtime.h>
 #include <linux/of_platform.h>
 #include <sound/tlv.h>
@@ -2529,15 +2530,13 @@ static const struct snd_soc_dapm_route wsa_audio_map[] = {
 static int wsa_swrm_clock(struct wsa_macro *wsa, bool enable)
 {
 	struct regmap *regmap = wsa->regmap;
+	int ret;
 
 	if (enable) {
-		int ret;
-
-		ret = clk_prepare_enable(wsa->mclk);
-		if (ret) {
-			dev_err(wsa->dev, "failed to enable mclk\n");
+		ret = pm_runtime_resume_and_get(wsa->dev);
+		if (ret < 0)
 			return ret;
-		}
+
 		wsa_macro_mclk_enable(wsa, true);
 
 		regmap_update_bits(regmap, CDC_WSA_CLK_RST_CTRL_SWR_CONTROL,
@@ -2548,7 +2547,10 @@ static int wsa_swrm_clock(struct wsa_macro *wsa, bool enable)
 		regmap_update_bits(regmap, CDC_WSA_CLK_RST_CTRL_SWR_CONTROL,
 				   CDC_WSA_SWR_CLK_EN_MASK, 0);
 		wsa_macro_mclk_enable(wsa, false);
-		clk_disable_unprepare(wsa->mclk);
+
+		ret = pm_runtime_put_autosuspend(wsa->dev);
+		if (ret < 0)
+			dev_warn(wsa->dev, "runtime PM put failed: %d\n", ret);
 	}
 
 	return 0;
@@ -2774,25 +2776,23 @@ static int wsa_macro_probe(struct platform_device *pdev)
 	clk_set_rate(wsa->mclk, WSA_MACRO_MCLK_FREQ);
 	clk_set_rate(wsa->npl, WSA_MACRO_MCLK_FREQ);
 
-	ret = clk_prepare_enable(wsa->macro);
+	ret = devm_pm_clk_create(dev);
 	if (ret)
-		goto err;
-
-	ret = clk_prepare_enable(wsa->dcodec);
-	if (ret)
-		goto err_dcodec;
+		return ret;
 
-	ret = clk_prepare_enable(wsa->mclk);
-	if (ret)
-		goto err_mclk;
+	ret = of_pm_clk_add_clks(dev);
+	if (ret < 0)
+		return ret;
 
-	ret = clk_prepare_enable(wsa->npl);
+	pm_runtime_set_autosuspend_delay(dev, 100);
+	pm_runtime_use_autosuspend(dev);
+	ret = devm_pm_runtime_enable(dev);
 	if (ret)
-		goto err_npl;
+		return ret;
 
-	ret = clk_prepare_enable(wsa->fsgen);
-	if (ret)
-		goto err_fsgen;
+	ret = pm_runtime_resume_and_get(dev);
+	if (ret < 0)
+		return ret;
 
 	/* reset swr ip */
 	regmap_update_bits(wsa->regmap, CDC_WSA_CLK_RST_CTRL_SWR_CONTROL,
@@ -2809,56 +2809,37 @@ static int wsa_macro_probe(struct platform_device *pdev)
 					      wsa_macro_dai,
 					      ARRAY_SIZE(wsa_macro_dai));
 	if (ret)
-		goto err_clkout;
-
-	pm_runtime_set_autosuspend_delay(dev, 3000);
-	pm_runtime_use_autosuspend(dev);
-	pm_runtime_mark_last_busy(dev);
-	pm_runtime_set_active(dev);
-	pm_runtime_enable(dev);
+		goto err_rpm_put;
 
 	ret = wsa_macro_register_mclk_output(wsa);
 	if (ret)
-		goto err_clkout;
+		goto err_rpm_put;
 
-	return 0;
+	ret = pm_runtime_put_autosuspend(dev);
+	if (ret < 0)
+		dev_warn(dev, "runtime PM put failed after probe: %d\n", ret);
 
-err_clkout:
-	clk_disable_unprepare(wsa->fsgen);
-err_fsgen:
-	clk_disable_unprepare(wsa->npl);
-err_npl:
-	clk_disable_unprepare(wsa->mclk);
-err_mclk:
-	clk_disable_unprepare(wsa->dcodec);
-err_dcodec:
-	clk_disable_unprepare(wsa->macro);
-err:
+	return 0;
+err_rpm_put:
+	if (pm_runtime_put_sync_suspend(dev) < 0)
+		dev_warn(dev, "runtime PM sync suspend failed in probe unwind\n");
 	return ret;
-
-}
-
-static void wsa_macro_remove(struct platform_device *pdev)
-{
-	struct wsa_macro *wsa = dev_get_drvdata(&pdev->dev);
-
-	clk_disable_unprepare(wsa->macro);
-	clk_disable_unprepare(wsa->dcodec);
-	clk_disable_unprepare(wsa->mclk);
-	clk_disable_unprepare(wsa->npl);
-	clk_disable_unprepare(wsa->fsgen);
 }
 
 static int wsa_macro_runtime_suspend(struct device *dev)
 {
 	struct wsa_macro *wsa = dev_get_drvdata(dev);
+	int ret;
 
 	regcache_cache_only(wsa->regmap, true);
-	regcache_mark_dirty(wsa->regmap);
 
-	clk_disable_unprepare(wsa->fsgen);
-	clk_disable_unprepare(wsa->npl);
-	clk_disable_unprepare(wsa->mclk);
+	ret = pm_clk_suspend(dev);
+	if (ret) {
+		regcache_cache_only(wsa->regmap, false);
+		return ret;
+	}
+
+	regcache_mark_dirty(wsa->regmap);
 
 	return 0;
 }
@@ -2866,36 +2847,29 @@ static int wsa_macro_runtime_suspend(struct device *dev)
 static int wsa_macro_runtime_resume(struct device *dev)
 {
 	struct wsa_macro *wsa = dev_get_drvdata(dev);
-	int ret;
+	int ret, sret;
 
-	ret = clk_prepare_enable(wsa->mclk);
+	ret = pm_clk_resume(dev);
 	if (ret) {
-		dev_err(dev, "unable to prepare mclk\n");
+		regcache_cache_only(wsa->regmap, true);
+		regcache_mark_dirty(wsa->regmap);
 		return ret;
 	}
+	regcache_cache_only(wsa->regmap, false);
 
-	ret = clk_prepare_enable(wsa->npl);
-	if (ret) {
-		dev_err(dev, "unable to prepare mclkx2\n");
-		goto err_npl;
-	}
-
-	ret = clk_prepare_enable(wsa->fsgen);
+	ret = regcache_sync(wsa->regmap);
 	if (ret) {
-		dev_err(dev, "unable to prepare fsgen\n");
-		goto err_fsgen;
+		regcache_cache_only(wsa->regmap, true);
+		regcache_mark_dirty(wsa->regmap);
+		sret = pm_clk_suspend(dev);
+		if (sret)
+			dev_err(dev,
+				"failed to suspend clocks after regcache sync failure: %d\n",
+				sret);
+		return ret;
 	}
 
-	regcache_cache_only(wsa->regmap, false);
-	regcache_sync(wsa->regmap);
-
 	return 0;
-err_fsgen:
-	clk_disable_unprepare(wsa->npl);
-err_npl:
-	clk_disable_unprepare(wsa->mclk);
-
-	return ret;
 }
 
 static const struct dev_pm_ops wsa_macro_pm_ops = {
@@ -2929,7 +2903,6 @@ static struct platform_driver wsa_macro_driver = {
 		.pm = pm_ptr(&wsa_macro_pm_ops),
 	},
 	.probe = wsa_macro_probe,
-	.remove = wsa_macro_remove,
 };
 
 module_platform_driver(wsa_macro_driver);

-- 
2.34.1

[PATCH v7 2/3] ASoC: codecs: lpass-va-macro: Switch to PM clock framework for runtime PM

[Ajay Kumar Nandam]

Convert the LPASS VA macro codec driver to runtime PM clock management by
using the PM clock framework.

Replace manual macro/dcodec/mclk/npl clock handling with PM clock helpers
and runtime PM callbacks, and keep runtime PM references around fsgen clock
gating so PM-clock-managed clocks remain active while fsgen is enabled.

Set autosuspend delay to 100 ms so PM-clock-managed votes are dropped soon
after idle while still avoiding suspend/resume churn on short gaps.

Add a PM_CLK dependency to SND_SOC_LPASS_VA_MACRO since this patch
introduces PM clock APIs.

Improve failure unwind paths: handle runtime PM put errors in probe/fsgen
paths and restore regcache state correctly on resume failure.

Suggested-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Ajay Kumar Nandam <ajay.nandam@oss.qualcomm.com>
---
 sound/soc/codecs/Kconfig          |   1 +
 sound/soc/codecs/lpass-va-macro.c | 142 +++++++++++++++++++++-----------------
 2 files changed, 80 insertions(+), 63 deletions(-)

diff --git a/sound/soc/codecs/Kconfig b/sound/soc/codecs/Kconfig
index 92cfa623782c..030bb902fdef 100644
--- a/sound/soc/codecs/Kconfig
+++ b/sound/soc/codecs/Kconfig
@@ -2904,6 +2904,7 @@ config SND_SOC_LPASS_WSA_MACRO
 
 config SND_SOC_LPASS_VA_MACRO
 	depends on COMMON_CLK
+	depends on PM_CLK
 	select REGMAP_MMIO
 	select SND_SOC_LPASS_MACRO_COMMON
 	tristate "Qualcomm VA Macro in LPASS(Low Power Audio SubSystem)"
diff --git a/sound/soc/codecs/lpass-va-macro.c b/sound/soc/codecs/lpass-va-macro.c
index 528d5b167ecf..13139f60f604 100644
--- a/sound/soc/codecs/lpass-va-macro.c
+++ b/sound/soc/codecs/lpass-va-macro.c
@@ -10,6 +10,7 @@
 #include <linux/of_clk.h>
 #include <linux/of_platform.h>
 #include <linux/platform_device.h>
+#include <linux/pm_clock.h>
 #include <linux/pm_runtime.h>
 #include <linux/regmap.h>
 #include <linux/regulator/consumer.h>
@@ -1346,34 +1347,58 @@ static int fsgen_gate_enable(struct clk_hw *hw)
 {
 	struct va_macro *va = to_va_macro(hw);
 	struct regmap *regmap = va->regmap;
-	int ret;
+	int ret, rpm_ret;
 
-	if (va->has_swr_master) {
-		ret = clk_prepare_enable(va->mclk);
-		if (ret)
-			return ret;
-	}
+	ret = pm_runtime_resume_and_get(va->dev);
+	if (ret < 0)
+		return ret;
 
 	ret = va_macro_mclk_enable(va, true);
+	if (ret) {
+		rpm_ret = pm_runtime_put_autosuspend(va->dev);
+		if (rpm_ret < 0)
+			dev_warn(va->dev,
+				 "runtime PM put failed in fsgen enable unwind: %d\n",
+				 rpm_ret);
+		return ret;
+	}
 	if (va->has_swr_master)
 		regmap_update_bits(regmap, CDC_VA_CLK_RST_CTRL_SWR_CONTROL,
 				   CDC_VA_SWR_CLK_EN_MASK, CDC_VA_SWR_CLK_ENABLE);
 
-	return ret;
+	return 0;
 }
 
 static void fsgen_gate_disable(struct clk_hw *hw)
 {
 	struct va_macro *va = to_va_macro(hw);
 	struct regmap *regmap = va->regmap;
+	int ret;
 
 	if (va->has_swr_master)
 		regmap_update_bits(regmap, CDC_VA_CLK_RST_CTRL_SWR_CONTROL,
 			   CDC_VA_SWR_CLK_EN_MASK, 0x0);
 
 	va_macro_mclk_enable(va, false);
-	if (va->has_swr_master)
-		clk_disable_unprepare(va->mclk);
+
+	ret = pm_runtime_put_autosuspend(va->dev);
+	if (ret < 0)
+		dev_warn(va->dev, "runtime PM put failed in fsgen disable: %d\n", ret);
+}
+
+static int va_macro_setup_pm_clocks(struct device *dev)
+{
+	int ret;
+
+	ret = devm_pm_clk_create(dev);
+	if (ret)
+		return ret;
+
+	ret = of_pm_clk_add_clks(dev);
+	if (ret < 0)
+		return ret;
+
+	return 0;
 }
 
 static int fsgen_gate_is_enabled(struct clk_hw *hw)
@@ -1534,6 +1559,7 @@ static int va_macro_probe(struct platform_device *pdev)
 	void __iomem *base;
 	u32 sample_rate = 0;
 	int ret;
+	int rpm_ret;
 
 	va = devm_kzalloc(dev, sizeof(*va), GFP_KERNEL);
 	if (!va)
@@ -1601,22 +1627,20 @@ static int va_macro_probe(struct platform_device *pdev)
 		clk_set_rate(va->npl, 2 * VA_MACRO_MCLK_FREQ);
 	}
 
-	ret = clk_prepare_enable(va->macro);
+	ret = va_macro_setup_pm_clocks(dev);
 	if (ret)
 		goto err;
 
-	ret = clk_prepare_enable(va->dcodec);
-	if (ret)
-		goto err_dcodec;
-
-	ret = clk_prepare_enable(va->mclk);
+	pm_runtime_set_autosuspend_delay(dev, 100);
+	pm_runtime_use_autosuspend(dev);
+	ret = devm_pm_runtime_enable(dev);
 	if (ret)
-		goto err_mclk;
+		goto err;
 
-	if (va->has_npl_clk) {
-		ret = clk_prepare_enable(va->npl);
-		if (ret)
-			goto err_npl;
+	rpm_ret = pm_runtime_resume_and_get(dev);
+	if (rpm_ret < 0) {
+		ret = rpm_ret;
+		goto err;
 	}
 
 	/**
@@ -1629,7 +1653,7 @@ static int va_macro_probe(struct platform_device *pdev)
 		/* read version from register */
 		ret = va_macro_set_lpass_codec_version(va);
 		if (ret)
-			goto err_clkout;
+			goto err_rpm_put;
 	}
 
 	if (va->has_swr_master) {
@@ -1659,35 +1683,28 @@ static int va_macro_probe(struct platform_device *pdev)
 					      va_macro_dais,
 					      ARRAY_SIZE(va_macro_dais));
 	if (ret)
-		goto err_clkout;
-
-	pm_runtime_set_autosuspend_delay(dev, 3000);
-	pm_runtime_use_autosuspend(dev);
-	pm_runtime_mark_last_busy(dev);
-	pm_runtime_set_active(dev);
-	pm_runtime_enable(dev);
+		goto err_rpm_put;
 
 	ret = va_macro_register_fsgen_output(va);
 	if (ret)
-		goto err_clkout;
+		goto err_rpm_put;
 
 	va->fsgen = devm_clk_hw_get_clk(dev, &va->hw, "fsgen");
 	if (IS_ERR(va->fsgen)) {
 		ret = PTR_ERR(va->fsgen);
-		goto err_clkout;
+		goto err_rpm_put;
 	}
 
+	rpm_ret = pm_runtime_put_autosuspend(dev);
+	if (rpm_ret < 0)
+		dev_warn(dev, "runtime PM put failed after probe: %d\n", rpm_ret);
+
 	return 0;
 
-err_clkout:
-	if (va->has_npl_clk)
-		clk_disable_unprepare(va->npl);
-err_npl:
-	clk_disable_unprepare(va->mclk);
-err_mclk:
-	clk_disable_unprepare(va->dcodec);
-err_dcodec:
-	clk_disable_unprepare(va->macro);
+err_rpm_put:
+	rpm_ret = pm_runtime_put_sync_suspend(dev);
+	if (rpm_ret < 0)
+		dev_warn(dev, "runtime PM sync suspend failed in probe unwind: %d\n", rpm_ret);
 err:
 	lpass_macro_pds_exit(va->pds);
 
@@ -1698,27 +1715,23 @@ static void va_macro_remove(struct platform_device *pdev)
 {
 	struct va_macro *va = dev_get_drvdata(&pdev->dev);
 
-	if (va->has_npl_clk)
-		clk_disable_unprepare(va->npl);
-
-	clk_disable_unprepare(va->mclk);
-	clk_disable_unprepare(va->dcodec);
-	clk_disable_unprepare(va->macro);
-
 	lpass_macro_pds_exit(va->pds);
 }
 
 static int va_macro_runtime_suspend(struct device *dev)
 {
 	struct va_macro *va = dev_get_drvdata(dev);
+	int ret;
 
 	regcache_cache_only(va->regmap, true);
-	regcache_mark_dirty(va->regmap);
 
-	if (va->has_npl_clk)
-		clk_disable_unprepare(va->npl);
+	ret = pm_clk_suspend(dev);
+	if (ret) {
+		regcache_cache_only(va->regmap, false);
+		return ret;
+	}
 
-	clk_disable_unprepare(va->mclk);
+	regcache_mark_dirty(va->regmap);
 
 	return 0;
 }
@@ -1726,25 +1739,28 @@ static int va_macro_runtime_suspend(struct device *dev)
 static int va_macro_runtime_resume(struct device *dev)
 {
 	struct va_macro *va = dev_get_drvdata(dev);
-	int ret;
+	int ret, sret;
 
-	ret = clk_prepare_enable(va->mclk);
+	ret = pm_clk_resume(dev);
 	if (ret) {
-		dev_err(va->dev, "unable to prepare mclk\n");
+		regcache_cache_only(va->regmap, true);
+		regcache_mark_dirty(va->regmap);
 		return ret;
 	}
 
-	if (va->has_npl_clk) {
-		ret = clk_prepare_enable(va->npl);
-		if (ret) {
-			clk_disable_unprepare(va->mclk);
-			dev_err(va->dev, "unable to prepare npl\n");
-			return ret;
-		}
-	}
-
 	regcache_cache_only(va->regmap, false);
-	regcache_sync(va->regmap);
+
+	ret = regcache_sync(va->regmap);
+	if (ret) {
+		regcache_cache_only(va->regmap, true);
+		regcache_mark_dirty(va->regmap);
+		sret = pm_clk_suspend(dev);
+		if (sret)
+			dev_err(va->dev,
+				"failed to suspend clocks after regcache sync failure: %d\n",
+				sret);
+		return ret;
+	}
 
 	return 0;
 }

-- 
2.34.1

[PATCH v7 3/3] ASoC: codecs: lpass-wsa-macro: Use devm_clk_hw_register() for MCLK output

[Ajay Kumar Nandam]

Switch WSA MCLK output registration to devm_clk_hw_register() so the clk
hw is automatically unregistered on probe failure and remove.

Reviewed-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
Signed-off-by: Ajay Kumar Nandam <ajay.nandam@oss.qualcomm.com>
---
 sound/soc/codecs/lpass-wsa-macro.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/sound/soc/codecs/lpass-wsa-macro.c b/sound/soc/codecs/lpass-wsa-macro.c
index 718564ee381e..f511816aa4a0 100644
--- a/sound/soc/codecs/lpass-wsa-macro.c
+++ b/sound/soc/codecs/lpass-wsa-macro.c
@@ -2658,7 +2658,7 @@ static int wsa_macro_register_mclk_output(struct wsa_macro *wsa)
 	init.num_parents = 1;
 	wsa->hw.init = &init;
 	hw = &wsa->hw;
-	ret = clk_hw_register(wsa->dev, hw);
+	ret = devm_clk_hw_register(wsa->dev, hw);
 	if (ret)
 		return ret;
 

-- 
2.34.1

Re: [PATCH v7 1/3] ASoC: codecs: lpass-wsa-macro: Switch to PM clock framework for runtime PM

[Konrad Dybcio]

On 6/29/26 12:05 PM, Ajay Kumar Nandam wrote:
> Convert the LPASS WSA macro codec driver to runtime PM clock management by
> using the PM clock framework.
> 
> Replace manual macro/dcodec/mclk/npl/fsgen clock toggling with PM clock
> helpers and runtime PM callbacks. Keep the SWR gate runtime PM reference
> from SWR clock enable until disable so autosuspend does not gate clocks
> while SWR is still prepared.
> 
> Set autosuspend delay to 100 ms so PM-clock-managed votes are dropped soon
> after idle while still avoiding suspend/resume churn on short gaps.
> 
> Add a PM_CLK dependency to SND_SOC_LPASS_WSA_MACRO since this patch
> introduces PM clock APIs.
> 
> Tighten error unwind by checking pm_runtime_put_sync_suspend() in probe and
> by restoring regcache state if pm_clk_resume()/regcache_sync() fails.
> 
> Suggested-by: Mark Brown <broonie@kernel.org>
> Signed-off-by: Ajay Kumar Nandam <ajay.nandam@oss.qualcomm.com>
> ---

I think this is good now

Reviewed-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>

Konrad

Re: [PATCH v7 2/3] ASoC: codecs: lpass-va-macro: Switch to PM clock framework for runtime PM

[Konrad Dybcio]

On 6/29/26 12:05 PM, Ajay Kumar Nandam wrote:
> Convert the LPASS VA macro codec driver to runtime PM clock management by
> using the PM clock framework.
> 
> Replace manual macro/dcodec/mclk/npl clock handling with PM clock helpers
> and runtime PM callbacks, and keep runtime PM references around fsgen clock
> gating so PM-clock-managed clocks remain active while fsgen is enabled.
> 
> Set autosuspend delay to 100 ms so PM-clock-managed votes are dropped soon
> after idle while still avoiding suspend/resume churn on short gaps.
> 
> Add a PM_CLK dependency to SND_SOC_LPASS_VA_MACRO since this patch
> introduces PM clock APIs.
> 
> Improve failure unwind paths: handle runtime PM put errors in probe/fsgen
> paths and restore regcache state correctly on resume failure.
> 
> Suggested-by: Mark Brown <broonie@kernel.org>
> Signed-off-by: Ajay Kumar Nandam <ajay.nandam@oss.qualcomm.com>
> ---

[...]

> +static int va_macro_setup_pm_clocks(struct device *dev)
> +{
> +	int ret;
> +
> +	ret = devm_pm_clk_create(dev);
> +	if (ret)
> +		return ret;
> +
> +	ret = of_pm_clk_add_clks(dev);
> +	if (ret < 0)
> +		return ret;
> +
> +	return 0;
>  }

https://lore.kernel.org/linux-arm-msm/84167531-b252-425c-bea5-49992a9c4500@oss.qualcomm.com/

Konrad