[PATCH v4 0/3] ASoC: qcom: lpass: Switch VA/WSA macros to PM clock framework

[PATCH v4 0/3] ASoC: qcom: lpass: Switch VA/WSA macros to PM clock framework

[Ajay Kumar Nandam]

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

Clock enable/disable sequencing during runtime suspend/resume is moved
to pm_clk helpers, while regcache state handling remains in the driver
runtime PM callbacks. This aligns these codec drivers with common LPASS
runtime PM patterns and reduces idle clock voting.

Patch 3 switches WSA MCLK clock registration to devm-managed
clk_hw registration.

---
v3: https://lore.kernel.org/r/20260508113503.3550647-1-ajay.nandam@oss.qualcomm.com

Changes since v3:
- Converted runtime-PM enablement to devm_pm_runtime_enable() in both
  PM-clock conversion patches and removed manual runtime-PM disable
  paths

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/lpass-va-macro.c  | 128 +++++++++++++++--------------
 sound/soc/codecs/lpass-wsa-macro.c | 119 ++++++++++-----------------
 2 files changed, 110 insertions(+), 137 deletions(-)

-- 
2.34.1

[PATCH v4 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 use the PM clock framework
for runtime power management.

The driver now relies on pm_clk helpers and runtime PM instead of
manually enabling and disabling macro, dcodec, mclk, npl, and fsgen
clocks. Runtime suspend and resume handling is delegated to the PM
core via pm_clk_suspend() and pm_clk_resume(), while existing runtime
PM callbacks continue to manage regcache state.

This ensures clocks are enabled only when the WSA macro is active,
improves power efficiency on LPASS platforms supporting LPI/island
modes, and aligns the driver with common ASoC runtime PM patterns used
across Qualcomm LPASS codec drivers.

Keep the SWR gate runtime-PM reference from SWR clock enable until
disable so autosuspend does not gate clocks while SWR is prepared.

Signed-off-by: Ajay Kumar Nandam <ajay.nandam@oss.qualcomm.com>
---
 sound/soc/codecs/lpass-wsa-macro.c | 117 +++++++++++------------------
 1 file changed, 44 insertions(+), 73 deletions(-)

diff --git a/sound/soc/codecs/lpass-wsa-macro.c b/sound/soc/codecs/lpass-wsa-macro.c
index 5ad0448af649..598292fe3219 100644
--- a/sound/soc/codecs/lpass-wsa-macro.c
+++ b/sound/soc/codecs/lpass-wsa-macro.c
@@ -14,6 +14,7 @@
 #include <sound/soc-dapm.h>
 #include <linux/pm_runtime.h>
 #include <linux/of_platform.h>
+#include <linux/pm_clock.h>
 #include <sound/tlv.h>
 
 #include "lpass-macro-common.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);
-	if (ret)
-		goto err;
-
-	ret = clk_prepare_enable(wsa->dcodec);
+	ret = devm_pm_clk_create(dev);
 	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 +2809,40 @@ 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:
+	pm_runtime_put_sync_suspend(dev);
 	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;
 }
@@ -2868,34 +2852,21 @@ static int wsa_macro_runtime_resume(struct device *dev)
 	struct wsa_macro *wsa = dev_get_drvdata(dev);
 	int ret;
 
-	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);
 		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);
+		pm_clk_suspend(dev);
+		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 = {
-- 
2.34.1

[PATCH v4 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 use the PM clock framework
for runtime power management.

The driver now relies on pm_clk helpers and runtime PM instead of
manually enabling and disabling macro, dcodec, mclk, and npl clocks.
All clock control during runtime suspend and resume is delegated to
the PM core via pm_clk_suspend() and pm_clk_resume().

This change ensures clocks are only enabled when the VA macro is
active, improves power efficiency on LPASS platforms supporting
LPI/island modes, and aligns the driver with common ASoC runtime PM
patterns used across Qualcomm LPASS codec drivers.

Signed-off-by: Ajay Kumar Nandam <ajay.nandam@oss.qualcomm.com>
---
 sound/soc/codecs/lpass-va-macro.c | 128 +++++++++++++++---------------
 1 file changed, 65 insertions(+), 63 deletions(-)

diff --git a/sound/soc/codecs/lpass-va-macro.c b/sound/soc/codecs/lpass-va-macro.c
index 528d5b167ecf..64a06d9ed6c8 100644
--- a/sound/soc/codecs/lpass-va-macro.c
+++ b/sound/soc/codecs/lpass-va-macro.c
@@ -11,6 +11,7 @@
 #include <linux/of_platform.h>
 #include <linux/platform_device.h>
 #include <linux/pm_runtime.h>
+#include <linux/pm_clock.h>
 #include <linux/regmap.h>
 #include <linux/regulator/consumer.h>
 #include <sound/soc.h>
@@ -1348,32 +1349,52 @@ static int fsgen_gate_enable(struct clk_hw *hw)
 	struct regmap *regmap = va->regmap;
 	int 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) {
+		pm_runtime_put_noidle(va->dev);
+		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 +1555,7 @@ 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 +1623,20 @@ 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 +1649,7 @@ 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 +1679,26 @@ 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:
+	pm_runtime_put_sync_suspend(dev);
 err:
 	lpass_macro_pds_exit(va->pds);
 
@@ -1698,27 +1709,23 @@ 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;
 }
@@ -1728,23 +1735,18 @@ static int va_macro_runtime_resume(struct device *dev)
 	struct va_macro *va = dev_get_drvdata(dev);
 	int ret;
 
-	ret = clk_prepare_enable(va->mclk);
-	if (ret) {
-		dev_err(va->dev, "unable to prepare mclk\n");
+	ret = pm_clk_resume(dev);
+	if (ret)
 		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);
+		pm_clk_suspend(dev);
+		return ret;
+	}
 
 	return 0;
 }
-- 
2.34.1

[PATCH v4 3/3] ASoC: codecs: lpass-wsa-macro: Use devm_clk_hw_register() for MCLK output

[Ajay Kumar Nandam]

The WSA macro driver registers the MCLK output clock using
clk_hw_register(), but does not explicitly unregister it in the remove
path or on probe failure.

Switch to devm_clk_hw_register() to make the registration resource-managed
so the clk_hw is automatically unregistered when the device is unbound or
probe fails. This fixes the missing unregister cleanup in remove/probe-fail
paths and simplifies error handling.

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 598292fe3219..3081c115d584 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 v4 1/3] ASoC: codecs: lpass-wsa-macro: Switch to PM clock framework for runtime PM

[Mark Brown]

[-- Attachment #1: Type: text/plain, Size: 690 bytes --]

On Mon, May 18, 2026 at 01:47:36PM +0530, Ajay Kumar Nandam wrote:
> Convert the LPASS WSA macro codec driver to use the PM clock framework
> for runtime power management.

> The driver now relies on pm_clk helpers and runtime PM instead of
> manually enabling and disabling macro, dcodec, mclk, npl, and fsgen
> clocks. Runtime suspend and resume handling is delegated to the PM
> core via pm_clk_suspend() and pm_clk_resume(), while existing runtime
> PM callbacks continue to manage regcache state.

> +	ret = devm_pm_clk_create(dev);

The !PM_CLK stub for this just returns -EINVAL so if that's not enabled
then none of the clocks will be enabled, the driver needs a dependency
adding.

[-- Attachment #2: signature.asc --]
[-- Type: application/pgp-signature, Size: 488 bytes --]

Re: [PATCH v4 1/3] ASoC: codecs: lpass-wsa-macro: Switch to PM clock framework for runtime PM

[Konrad Dybcio]

On 5/19/26 4:33 PM, Mark Brown wrote:
> On Mon, May 18, 2026 at 01:47:36PM +0530, Ajay Kumar Nandam wrote:
>> Convert the LPASS WSA macro codec driver to use the PM clock framework
>> for runtime power management.
> 
>> The driver now relies on pm_clk helpers and runtime PM instead of
>> manually enabling and disabling macro, dcodec, mclk, npl, and fsgen
>> clocks. Runtime suspend and resume handling is delegated to the PM
>> core via pm_clk_suspend() and pm_clk_resume(), while existing runtime
>> PM callbacks continue to manage regcache state.
> 
>> +	ret = devm_pm_clk_create(dev);
> 
> The !PM_CLK stub for this just returns -EINVAL so if that's not enabled
> then none of the clocks will be enabled, the driver needs a dependency
> adding.

This goes for both the drivers

I don't think I have other comments with that fixed

Konrad

Re: [PATCH v4 1/3] ASoC: codecs: lpass-wsa-macro: Switch to PM clock framework for runtime PM

[Ajay Kumar Nandam]

On 5/19/2026 8:03 PM, Mark Brown wrote:
> On Mon, May 18, 2026 at 01:47:36PM +0530, Ajay Kumar Nandam wrote:
>> Convert the LPASS WSA macro codec driver to use the PM clock framework
>> for runtime power management.
> 
>> The driver now relies on pm_clk helpers and runtime PM instead of
>> manually enabling and disabling macro, dcodec, mclk, npl, and fsgen
>> clocks. Runtime suspend and resume handling is delegated to the PM
>> core via pm_clk_suspend() and pm_clk_resume(), while existing runtime
>> PM callbacks continue to manage regcache state.
> 
>> +	ret = devm_pm_clk_create(dev);
> 
> The !PM_CLK stub for this just returns -EINVAL so if that's not enabled
> then none of the clocks will be enabled, the driver needs a dependency
> adding.

ACK, will update in V5. Thank you for pointing this.

Re: [PATCH v4 1/3] ASoC: codecs: lpass-wsa-macro: Switch to PM clock framework for runtime PM

[Ajay Kumar Nandam]

On 5/22/2026 4:12 PM, Konrad Dybcio wrote:
> On 5/19/26 4:33 PM, Mark Brown wrote:
>> On Mon, May 18, 2026 at 01:47:36PM +0530, Ajay Kumar Nandam wrote:
>>> Convert the LPASS WSA macro codec driver to use the PM clock framework
>>> for runtime power management.
>>
>>> The driver now relies on pm_clk helpers and runtime PM instead of
>>> manually enabling and disabling macro, dcodec, mclk, npl, and fsgen
>>> clocks. Runtime suspend and resume handling is delegated to the PM
>>> core via pm_clk_suspend() and pm_clk_resume(), while existing runtime
>>> PM callbacks continue to manage regcache state.
>>
>>> +	ret = devm_pm_clk_create(dev);
>>
>> The !PM_CLK stub for this just returns -EINVAL so if that's not enabled
>> then none of the clocks will be enabled, the driver needs a dependency
>> adding.
> 
> This goes for both the drivers
> 
> I don't think I have other comments with that fixed
> 
> Konrad

ACK, Thank you


Thanks
Ajay