[PATCH 01/11] ASoC: Intel: catpt: use pm_runtime_resume_and_get()

[PATCH 01/11] ASoC: Intel: catpt: use pm_runtime_resume_and_get()

[Pierre-Louis Bossart]

The current code does not check for errors and does not release the
reference on errors.

Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: Bard Liao <yung-chuan.liao@linux.intel.com>
Reviewed-by: Kai Vehmanen <kai.vehmanen@linux.intel.com>
Reviewed-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
---
 sound/soc/intel/catpt/pcm.c   | 26 ++++++++++++++++++++------
 sound/soc/intel/catpt/sysfs.c |  4 +++-
 2 files changed, 23 insertions(+), 7 deletions(-)

diff --git a/sound/soc/intel/catpt/pcm.c b/sound/soc/intel/catpt/pcm.c
index a26000cd5cebc..30ca5416c9a3f 100644
--- a/sound/soc/intel/catpt/pcm.c
+++ b/sound/soc/intel/catpt/pcm.c
@@ -667,7 +667,9 @@ static int catpt_dai_pcm_new(struct snd_soc_pcm_runtime *rtm,
 	if (!memcmp(&cdev->devfmt[devfmt.iface], &devfmt, sizeof(devfmt)))
 		return 0;
 
-	pm_runtime_get_sync(cdev->dev);
+	ret = pm_runtime_resume_and_get(cdev->dev);
+	if (ret < 0 && ret != -EACCES)
+		return ret;
 
 	ret = catpt_ipc_set_device_format(cdev, &devfmt);
 
@@ -853,9 +855,12 @@ static int catpt_mixer_volume_get(struct snd_kcontrol *kcontrol,
 		snd_soc_kcontrol_component(kcontrol);
 	struct catpt_dev *cdev = dev_get_drvdata(component->dev);
 	u32 dspvol;
+	int ret;
 	int i;
 
-	pm_runtime_get_sync(cdev->dev);
+	ret = pm_runtime_resume_and_get(cdev->dev);
+	if (ret < 0 && ret != -EACCES)
+		return ret;
 
 	for (i = 0; i < CATPT_CHANNELS_MAX; i++) {
 		dspvol = catpt_mixer_volume(cdev, &cdev->mixer, i);
@@ -876,7 +881,9 @@ static int catpt_mixer_volume_put(struct snd_kcontrol *kcontrol,
 	struct catpt_dev *cdev = dev_get_drvdata(component->dev);
 	int ret;
 
-	pm_runtime_get_sync(cdev->dev);
+	ret = pm_runtime_resume_and_get(cdev->dev);
+	if (ret < 0 && ret != -EACCES)
+		return ret;
 
 	ret = catpt_set_dspvol(cdev, cdev->mixer.mixer_hw_id,
 			       ucontrol->value.integer.value);
@@ -897,6 +904,7 @@ static int catpt_stream_volume_get(struct snd_kcontrol *kcontrol,
 	struct catpt_dev *cdev = dev_get_drvdata(component->dev);
 	long *ctlvol = (long *)kcontrol->private_value;
 	u32 dspvol;
+	int ret;
 	int i;
 
 	stream = catpt_stream_find(cdev, pin_id);
@@ -906,7 +914,9 @@ static int catpt_stream_volume_get(struct snd_kcontrol *kcontrol,
 		return 0;
 	}
 
-	pm_runtime_get_sync(cdev->dev);
+	ret = pm_runtime_resume_and_get(cdev->dev);
+	if (ret < 0 && ret != -EACCES)
+		return ret;
 
 	for (i = 0; i < CATPT_CHANNELS_MAX; i++) {
 		dspvol = catpt_stream_volume(cdev, stream, i);
@@ -937,7 +947,9 @@ static int catpt_stream_volume_put(struct snd_kcontrol *kcontrol,
 		return 0;
 	}
 
-	pm_runtime_get_sync(cdev->dev);
+	ret = pm_runtime_resume_and_get(cdev->dev);
+	if (ret < 0 && ret != -EACCES)
+		return ret;
 
 	ret = catpt_set_dspvol(cdev, stream->info.stream_hw_id,
 			       ucontrol->value.integer.value);
@@ -1013,7 +1025,9 @@ static int catpt_loopback_switch_put(struct snd_kcontrol *kcontrol,
 		return 0;
 	}
 
-	pm_runtime_get_sync(cdev->dev);
+	ret = pm_runtime_resume_and_get(cdev->dev);
+	if (ret < 0 && ret != -EACCES)
+		return ret;
 
 	ret = catpt_ipc_mute_loopback(cdev, stream->info.stream_hw_id, mute);
 
diff --git a/sound/soc/intel/catpt/sysfs.c b/sound/soc/intel/catpt/sysfs.c
index 9579e233a15db..1bdbcc04dc712 100644
--- a/sound/soc/intel/catpt/sysfs.c
+++ b/sound/soc/intel/catpt/sysfs.c
@@ -15,7 +15,9 @@ static ssize_t fw_version_show(struct device *dev,
 	struct catpt_fw_version version;
 	int ret;
 
-	pm_runtime_get_sync(cdev->dev);
+	ret = pm_runtime_resume_and_get(cdev->dev);
+	if (ret < 0 && ret != -EACCES)
+		return ret;
 
 	ret = catpt_ipc_get_fw_version(cdev, &version);
 
-- 
2.34.1

[PATCH 02/11] ASoC: Intel: skylake: skl-pcm: use pm_runtime_resume_and_get()

[Pierre-Louis Bossart]

The current code does not check for errors and does not release the
reference on errors.

Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: Bard Liao <yung-chuan.liao@linux.intel.com>
Reviewed-by: Kai Vehmanen <kai.vehmanen@linux.intel.com>
Reviewed-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
---
 sound/soc/intel/skylake/skl-pcm.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/sound/soc/intel/skylake/skl-pcm.c b/sound/soc/intel/skylake/skl-pcm.c
index 55f310e91b55c..9d72ebd812af9 100644
--- a/sound/soc/intel/skylake/skl-pcm.c
+++ b/sound/soc/intel/skylake/skl-pcm.c
@@ -1380,7 +1380,10 @@ static int skl_platform_soc_probe(struct snd_soc_component *component)
 	const struct skl_dsp_ops *ops;
 	int ret;
 
-	pm_runtime_get_sync(component->dev);
+	ret = pm_runtime_resume_and_get(component->dev);
+	if (ret < 0 && ret != -EACCES)
+		return ret;
+
 	if (bus->ppcap) {
 		skl->component = component;
 
-- 
2.34.1

[PATCH 03/11] ASoC: soc-component: use pm_runtime_resume_and_get()

[Pierre-Louis Bossart]

simplify the flow. No functionality change, except that on -EACCESS
the reference count will be decreased.

Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: Bard Liao <yung-chuan.liao@linux.intel.com>
Reviewed-by: Kai Vehmanen <kai.vehmanen@linux.intel.com>
Reviewed-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
---
 sound/soc/soc-component.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/sound/soc/soc-component.c b/sound/soc/soc-component.c
index e12f8244242b9..cb92e002c38bc 100644
--- a/sound/soc/soc-component.c
+++ b/sound/soc/soc-component.c
@@ -1213,11 +1213,11 @@ int snd_soc_pcm_component_pm_runtime_get(struct snd_soc_pcm_runtime *rtd,
 	int i;
 
 	for_each_rtd_components(rtd, i, component) {
-		int ret = pm_runtime_get_sync(component->dev);
-		if (ret < 0 && ret != -EACCES) {
-			pm_runtime_put_noidle(component->dev);
+		int ret = pm_runtime_resume_and_get(component->dev);
+
+		if (ret < 0 && ret != -EACCES)
 			return soc_component_ret(component, ret);
-		}
+
 		/* mark stream if succeeded */
 		soc_component_mark_push(component, stream, pm);
 	}
-- 
2.34.1

[PATCH 04/11] ASoC: wcd-mbhc-v2: use pm_runtime_resume_and_get()

[Pierre-Louis Bossart]

simplify the flow. No functionality change, except that on -EACCESS
the reference count will be decreased.

Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: Bard Liao <yung-chuan.liao@linux.intel.com>
Reviewed-by: Kai Vehmanen <kai.vehmanen@linux.intel.com>
Reviewed-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
---
 sound/soc/codecs/wcd-mbhc-v2.c | 10 ++++------
 1 file changed, 4 insertions(+), 6 deletions(-)

diff --git a/sound/soc/codecs/wcd-mbhc-v2.c b/sound/soc/codecs/wcd-mbhc-v2.c
index 31009283e7d4a..98baef594bf31 100644
--- a/sound/soc/codecs/wcd-mbhc-v2.c
+++ b/sound/soc/codecs/wcd-mbhc-v2.c
@@ -714,12 +714,11 @@ static int wcd_mbhc_initialise(struct wcd_mbhc *mbhc)
 	struct snd_soc_component *component = mbhc->component;
 	int ret;
 
-	ret = pm_runtime_get_sync(component->dev);
+	ret = pm_runtime_resume_and_get(component->dev);
 	if (ret < 0 && ret != -EACCES) {
 		dev_err_ratelimited(component->dev,
-				    "pm_runtime_get_sync failed in %s, ret %d\n",
+				    "pm_runtime_resume_and_get failed in %s, ret %d\n",
 				    __func__, ret);
-		pm_runtime_put_noidle(component->dev);
 		return ret;
 	}
 
@@ -1097,12 +1096,11 @@ static void wcd_correct_swch_plug(struct work_struct *work)
 	mbhc = container_of(work, struct wcd_mbhc, correct_plug_swch);
 	component = mbhc->component;
 
-	ret = pm_runtime_get_sync(component->dev);
+	ret = pm_runtime_resume_and_get(component->dev);
 	if (ret < 0 && ret != -EACCES) {
 		dev_err_ratelimited(component->dev,
-				    "pm_runtime_get_sync failed in %s, ret %d\n",
+				    "pm_runtime_resume_and_get failed in %s, ret %d\n",
 				    __func__, ret);
-		pm_runtime_put_noidle(component->dev);
 		return;
 	}
 	micbias_mv = wcd_mbhc_get_micbias(mbhc);
-- 
2.34.1

[PATCH 05/11] ASoC: wsa881x: use pm_runtime_resume_and_get()

[Pierre-Louis Bossart]

simplify the flow. No functionality change, except that on -EACCESS
the reference count will be decreased.

Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: Bard Liao <yung-chuan.liao@linux.intel.com>
Reviewed-by: Kai Vehmanen <kai.vehmanen@linux.intel.com>
Reviewed-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
---
 sound/soc/codecs/wsa881x.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/sound/soc/codecs/wsa881x.c b/sound/soc/codecs/wsa881x.c
index f3a56f3ce4871..dc954b85a9881 100644
--- a/sound/soc/codecs/wsa881x.c
+++ b/sound/soc/codecs/wsa881x.c
@@ -749,11 +749,9 @@ static int wsa881x_put_pa_gain(struct snd_kcontrol *kc,
 	unsigned int mask = (1 << fls(max)) - 1;
 	int val, ret, min_gain, max_gain;
 
-	ret = pm_runtime_get_sync(comp->dev);
-	if (ret < 0 && ret != -EACCES) {
-		pm_runtime_put_noidle(comp->dev);
+	ret = pm_runtime_resume_and_get(comp->dev);
+	if (ret < 0 && ret != -EACCES)
 		return ret;
-	}
 
 	max_gain = (max - ucontrol->value.integer.value[0]) & mask;
 	/*
-- 
2.34.1

[PATCH 06/11] ASoC: rockchip: i2s_tdm: use pm_runtime_resume_and_get()

[Pierre-Louis Bossart]

simplify the flow. No functionality change, except that on -EACCESS
the reference count will be decreased.

Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: Bard Liao <yung-chuan.liao@linux.intel.com>
Reviewed-by: Kai Vehmanen <kai.vehmanen@linux.intel.com>
Reviewed-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
---
 sound/soc/rockchip/rockchip_i2s_tdm.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/sound/soc/rockchip/rockchip_i2s_tdm.c b/sound/soc/rockchip/rockchip_i2s_tdm.c
index 48b3ecfa58b46..70542a402477e 100644
--- a/sound/soc/rockchip/rockchip_i2s_tdm.c
+++ b/sound/soc/rockchip/rockchip_i2s_tdm.c
@@ -404,11 +404,9 @@ static int rockchip_i2s_tdm_set_fmt(struct snd_soc_dai *cpu_dai,
 	int ret;
 	bool is_tdm = i2s_tdm->tdm_mode;
 
-	ret = pm_runtime_get_sync(cpu_dai->dev);
-	if (ret < 0 && ret != -EACCES) {
-		pm_runtime_put_noidle(cpu_dai->dev);
+	ret = pm_runtime_resume_and_get(cpu_dai->dev);
+	if (ret < 0 && ret != -EACCES)
 		return ret;
-	}
 
 	mask = I2S_CKR_MSS_MASK;
 	switch (fmt & SND_SOC_DAIFMT_CLOCK_PROVIDER_MASK) {
-- 
2.34.1

[PATCH 07/11] ASoC: fsl: fsl_sai: use pm_runtime_resume_and_get()

[Pierre-Louis Bossart]

Simplify the flow.

Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: Bard Liao <yung-chuan.liao@linux.intel.com>
Reviewed-by: Kai Vehmanen <kai.vehmanen@linux.intel.com>
Reviewed-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
---
 sound/soc/fsl/fsl_sai.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/sound/soc/fsl/fsl_sai.c b/sound/soc/fsl/fsl_sai.c
index 4f5bd9597c746..b6407d4d3e09d 100644
--- a/sound/soc/fsl/fsl_sai.c
+++ b/sound/soc/fsl/fsl_sai.c
@@ -1141,11 +1141,9 @@ static int fsl_sai_probe(struct platform_device *pdev)
 			goto err_pm_disable;
 	}
 
-	ret = pm_runtime_get_sync(dev);
-	if (ret < 0) {
-		pm_runtime_put_noidle(dev);
+	ret = pm_runtime_resume_and_get(dev);
+	if (ret < 0)
 		goto err_pm_get_sync;
-	}
 
 	/* Get sai version */
 	ret = fsl_sai_check_version(dev);
-- 
2.34.1

[PATCH 08/11] ASoC: img: img-i2s-out: use pm_runtime_resume_and_get()

[Pierre-Louis Bossart]

Simplify the flow.

Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: Bard Liao <yung-chuan.liao@linux.intel.com>
Reviewed-by: Kai Vehmanen <kai.vehmanen@linux.intel.com>
Reviewed-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
---
 sound/soc/img/img-i2s-out.c | 12 ++++--------
 1 file changed, 4 insertions(+), 8 deletions(-)

diff --git a/sound/soc/img/img-i2s-out.c b/sound/soc/img/img-i2s-out.c
index 9ec6fc528e2b4..50a522aca419a 100644
--- a/sound/soc/img/img-i2s-out.c
+++ b/sound/soc/img/img-i2s-out.c
@@ -346,11 +346,9 @@ static int img_i2s_out_set_fmt(struct snd_soc_dai *dai, unsigned int fmt)
 
 	chan_control_mask = IMG_I2S_OUT_CHAN_CTL_CLKT_MASK;
 
-	ret = pm_runtime_get_sync(i2s->dev);
-	if (ret < 0) {
-		pm_runtime_put_noidle(i2s->dev);
+	ret = pm_runtime_resume_and_get(i2s->dev);
+	if (ret < 0)
 		return ret;
-	}
 
 	img_i2s_out_disable(i2s);
 
@@ -482,11 +480,9 @@ static int img_i2s_out_probe(struct platform_device *pdev)
 		if (ret)
 			goto err_pm_disable;
 	}
-	ret = pm_runtime_get_sync(&pdev->dev);
-	if (ret < 0) {
-		pm_runtime_put_noidle(&pdev->dev);
+	ret = pm_runtime_resume_and_get(&pdev->dev);
+	if (ret < 0)
 		goto err_suspend;
-	}
 
 	reg = IMG_I2S_OUT_CTL_FRM_SIZE_MASK;
 	img_i2s_out_writel(i2s, reg, IMG_I2S_OUT_CTL);
-- 
2.34.1

[PATCH 09/11] ASoC: rockchip: pdm: use pm_runtime_resume_and_get()

[Pierre-Louis Bossart]

Simplify the flow.

Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: Bard Liao <yung-chuan.liao@linux.intel.com>
Reviewed-by: Kai Vehmanen <kai.vehmanen@linux.intel.com>
Reviewed-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
---
 sound/soc/rockchip/rockchip_pdm.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/sound/soc/rockchip/rockchip_pdm.c b/sound/soc/rockchip/rockchip_pdm.c
index 64d9891b6434f..066e29b7879d1 100644
--- a/sound/soc/rockchip/rockchip_pdm.c
+++ b/sound/soc/rockchip/rockchip_pdm.c
@@ -688,11 +688,9 @@ static int rockchip_pdm_resume(struct device *dev)
 	struct rk_pdm_dev *pdm = dev_get_drvdata(dev);
 	int ret;
 
-	ret = pm_runtime_get_sync(dev);
-	if (ret < 0) {
-		pm_runtime_put(dev);
+	ret = pm_runtime_resume_and_get(dev);
+	if (ret < 0)
 		return ret;
-	}
 
 	ret = regcache_sync(pdm->regmap);
 
-- 
2.34.1

[PATCH 10/11] ASoC: tas2552: use pm_runtime_resume_and_get()

[Pierre-Louis Bossart]

The use of pm_runtime_get_sync() is buggy with no use of put_noidle() on
error.

Use pm_runtime_resume_and_get() instead.

Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: Bard Liao <yung-chuan.liao@linux.intel.com>
Reviewed-by: Kai Vehmanen <kai.vehmanen@linux.intel.com>
Reviewed-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
---
 sound/soc/codecs/tas2552.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/sound/soc/codecs/tas2552.c b/sound/soc/codecs/tas2552.c
index c98a9332dcc0e..da744cfae611c 100644
--- a/sound/soc/codecs/tas2552.c
+++ b/sound/soc/codecs/tas2552.c
@@ -581,7 +581,7 @@ static int tas2552_component_probe(struct snd_soc_component *component)
 
 	gpiod_set_value(tas2552->enable_gpio, 1);
 
-	ret = pm_runtime_get_sync(component->dev);
+	ret = pm_runtime_resume_and_get(component->dev);
 	if (ret < 0) {
 		dev_err(component->dev, "Enabling device failed: %d\n",
 			ret);
-- 
2.34.1

[PATCH 11/11] ASoC: ti: davinci-mcasp: use pm_runtime_resume_and_get()

[Pierre-Louis Bossart]

The use of pm_runtime_get_sync() is buggy with no use of put_noidle on
error.

Use pm_runtime_resume_and_get() instead.

Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: Bard Liao <yung-chuan.liao@linux.intel.com>
Reviewed-by: Kai Vehmanen <kai.vehmanen@linux.intel.com>
Reviewed-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
---
 sound/soc/ti/davinci-mcasp.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/sound/soc/ti/davinci-mcasp.c b/sound/soc/ti/davinci-mcasp.c
index e2aab4729f3ab..0201000b619f6 100644
--- a/sound/soc/ti/davinci-mcasp.c
+++ b/sound/soc/ti/davinci-mcasp.c
@@ -2111,8 +2111,7 @@ static int davinci_mcasp_gpio_request(struct gpio_chip *chip, unsigned offset)
 	}
 
 	/* Do not change the PIN yet */
-
-	return pm_runtime_get_sync(mcasp->dev);
+	return pm_runtime_resume_and_get(mcasp->dev);
 }
 
 static void davinci_mcasp_gpio_free(struct gpio_chip *chip, unsigned offset)
-- 
2.34.1

Re: [PATCH 01/11] ASoC: Intel: catpt: use pm_runtime_resume_and_get()

[Cezary Rojewski]

On 2022-06-17 12:04 AM, Pierre-Louis Bossart wrote:
> The current code does not check for errors and does not release the
> reference on errors.


Thanks for the fixes.

Acked-by: Cezary Rojewski <cezary.rojewski@intel.com>

Re: [PATCH 02/11] ASoC: Intel: skylake: skl-pcm: use pm_runtime_resume_and_get()

[Cezary Rojewski]

On 2022-06-17 12:04 AM, Pierre-Louis Bossart wrote:
> The current code does not check for errors and does not release the
> reference on errors.


Thanks for the fixes.

Acked-by: Cezary Rojewski <cezary.rojewski@intel.com>

Re: [PATCH 11/11] ASoC: ti: davinci-mcasp: use pm_runtime_resume_and_get()

[Péter Ujfalusi]

Hi Pierre,

On 17/06/2022 01:04, Pierre-Louis Bossart wrote:
> The use of pm_runtime_get_sync() is buggy with no use of put_noidle on
> error.
> 
> Use pm_runtime_resume_and_get() instead.

Thanks for the fix,

Acked-by: Peter Ujfalusi <peter.ujfalusi@gmail.com>

> 
> Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
> Reviewed-by: Bard Liao <yung-chuan.liao@linux.intel.com>
> Reviewed-by: Kai Vehmanen <kai.vehmanen@linux.intel.com>
> Reviewed-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
> ---
>  sound/soc/ti/davinci-mcasp.c | 3 +--
>  1 file changed, 1 insertion(+), 2 deletions(-)
> 
> diff --git a/sound/soc/ti/davinci-mcasp.c b/sound/soc/ti/davinci-mcasp.c
> index e2aab4729f3ab..0201000b619f6 100644
> --- a/sound/soc/ti/davinci-mcasp.c
> +++ b/sound/soc/ti/davinci-mcasp.c
> @@ -2111,8 +2111,7 @@ static int davinci_mcasp_gpio_request(struct gpio_chip *chip, unsigned offset)
>  	}
>  
>  	/* Do not change the PIN yet */
> -
> -	return pm_runtime_get_sync(mcasp->dev);
> +	return pm_runtime_resume_and_get(mcasp->dev);
>  }
>  
>  static void davinci_mcasp_gpio_free(struct gpio_chip *chip, unsigned offset)

-- 
Péter

Re: [PATCH 03/11] ASoC: soc-component: use pm_runtime_resume_and_get()

[Pierre-Louis Bossart]

On 6/16/22 17:04, Pierre-Louis Bossart wrote:
> simplify the flow. No functionality change, except that on -EACCESS
> the reference count will be decreased.

This patch turns out to be incorrect and should not be merged.

I missed the fact that the component pm_runtime_put() will decrease the
reference count that is already decreased with
pm_runtime_resume_and_get() when pm_runtime is not enabled. This leads
to warnings:

snd-soc-dummy snd-soc-dummy: Runtime PM usage count underflow!

Unfortunately we missed those warnings during validation, that's not so
good.

pm_runtime_resume_and_get() really needs to be used ONLY when the
get/put are part of the same function and the reference count can be
checked. When the get/put are in different functions, it's asking for
trouble.

Also the check on -EACCES is problematic when the component is handled
by a framework, it's not clear if that can happen or not.

The rest of the patches follow the pattern get_sync/put and don't have a
problem.

Sorry for the noise.

> 
> Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
> Reviewed-by: Bard Liao <yung-chuan.liao@linux.intel.com>
> Reviewed-by: Kai Vehmanen <kai.vehmanen@linux.intel.com>
> Reviewed-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
> ---
>  sound/soc/soc-component.c | 8 ++++----
>  1 file changed, 4 insertions(+), 4 deletions(-)
> 
> diff --git a/sound/soc/soc-component.c b/sound/soc/soc-component.c
> index e12f8244242b9..cb92e002c38bc 100644
> --- a/sound/soc/soc-component.c
> +++ b/sound/soc/soc-component.c
> @@ -1213,11 +1213,11 @@ int snd_soc_pcm_component_pm_runtime_get(struct snd_soc_pcm_runtime *rtd,
>  	int i;
>  
>  	for_each_rtd_components(rtd, i, component) {
> -		int ret = pm_runtime_get_sync(component->dev);
> -		if (ret < 0 && ret != -EACCES) {
> -			pm_runtime_put_noidle(component->dev);
> +		int ret = pm_runtime_resume_and_get(component->dev);
> +
> +		if (ret < 0 && ret != -EACCES)
>  			return soc_component_ret(component, ret);
> -		}
> +
>  		/* mark stream if succeeded */
>  		soc_component_mark_push(component, stream, pm);
>  	}

Re: [PATCH 05/11] ASoC: wsa881x: use pm_runtime_resume_and_get()

[Srinivas Kandagatla]

On 16/06/2022 15:04, Pierre-Louis Bossart wrote:
> simplify the flow. No functionality change, except that on -EACCESS
> the reference count will be decreased.
> 
> Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
> Reviewed-by: Bard Liao <yung-chuan.liao@linux.intel.com>
> Reviewed-by: Kai Vehmanen <kai.vehmanen@linux.intel.com>
> Reviewed-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
> ---
Thanks Pierre,

LGTM,

Reviewed-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>

--srini
>   sound/soc/codecs/wsa881x.c | 6 ++----
>   1 file changed, 2 insertions(+), 4 deletions(-)
> 
> diff --git a/sound/soc/codecs/wsa881x.c b/sound/soc/codecs/wsa881x.c
> index f3a56f3ce4871..dc954b85a9881 100644
> --- a/sound/soc/codecs/wsa881x.c
> +++ b/sound/soc/codecs/wsa881x.c
> @@ -749,11 +749,9 @@ static int wsa881x_put_pa_gain(struct snd_kcontrol *kc,
>   	unsigned int mask = (1 << fls(max)) - 1;
>   	int val, ret, min_gain, max_gain;
>   
> -	ret = pm_runtime_get_sync(comp->dev);
> -	if (ret < 0 && ret != -EACCES) {
> -		pm_runtime_put_noidle(comp->dev);
> +	ret = pm_runtime_resume_and_get(comp->dev);
> +	if (ret < 0 && ret != -EACCES)
>   		return ret;
> -	}
>   
>   	max_gain = (max - ucontrol->value.integer.value[0]) & mask;
>   	/*

Re: [PATCH 04/11] ASoC: wcd-mbhc-v2: use pm_runtime_resume_and_get()

[Srinivas Kandagatla]

On 16/06/2022 15:04, Pierre-Louis Bossart wrote:
> simplify the flow. No functionality change, except that on -EACCESS
> the reference count will be decreased.
> 
> Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
> Reviewed-by: Bard Liao <yung-chuan.liao@linux.intel.com>
> Reviewed-by: Kai Vehmanen <kai.vehmanen@linux.intel.com>
> Reviewed-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
> ---
Thanks Pierre,

LGTM,
Reviewed-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>

--srini

>   sound/soc/codecs/wcd-mbhc-v2.c | 10 ++++------
>   1 file changed, 4 insertions(+), 6 deletions(-)
> 
> diff --git a/sound/soc/codecs/wcd-mbhc-v2.c b/sound/soc/codecs/wcd-mbhc-v2.c
> index 31009283e7d4a..98baef594bf31 100644
> --- a/sound/soc/codecs/wcd-mbhc-v2.c
> +++ b/sound/soc/codecs/wcd-mbhc-v2.c
> @@ -714,12 +714,11 @@ static int wcd_mbhc_initialise(struct wcd_mbhc *mbhc)
>   	struct snd_soc_component *component = mbhc->component;
>   	int ret;
>   
> -	ret = pm_runtime_get_sync(component->dev);
> +	ret = pm_runtime_resume_and_get(component->dev);
>   	if (ret < 0 && ret != -EACCES) {
>   		dev_err_ratelimited(component->dev,
> -				    "pm_runtime_get_sync failed in %s, ret %d\n",
> +				    "pm_runtime_resume_and_get failed in %s, ret %d\n",
>   				    __func__, ret);
> -		pm_runtime_put_noidle(component->dev);
>   		return ret;
>   	}
>   
> @@ -1097,12 +1096,11 @@ static void wcd_correct_swch_plug(struct work_struct *work)
>   	mbhc = container_of(work, struct wcd_mbhc, correct_plug_swch);
>   	component = mbhc->component;
>   
> -	ret = pm_runtime_get_sync(component->dev);
> +	ret = pm_runtime_resume_and_get(component->dev);
>   	if (ret < 0 && ret != -EACCES) {
>   		dev_err_ratelimited(component->dev,
> -				    "pm_runtime_get_sync failed in %s, ret %d\n",
> +				    "pm_runtime_resume_and_get failed in %s, ret %d\n",
>   				    __func__, ret);
> -		pm_runtime_put_noidle(component->dev);
>   		return;
>   	}
>   	micbias_mv = wcd_mbhc_get_micbias(mbhc);