diff mbox series

[06/28] iio: accel: mma9551/3: Balance untime pm + use pm_runtime_resume_and_get()

Message ID 20210509113354.660190-7-jic23@kernel.org (mailing list archive)
State New, archived
Headers show
Series IIO: Runtime PM related cleanups. | expand

Commit Message

Jonathan Cameron May 9, 2021, 11:33 a.m. UTC
From: Jonathan Cameron <Jonathan.Cameron@huawei.com>

Both these drivers call pm_runtime_put_no_idle() when the reference
count should already be zero as there is no matching get()

Whilst here use pm_runtime_resume_and_get() rather than open coding.

Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
---
 drivers/iio/accel/mma9551.c      | 1 -
 drivers/iio/accel/mma9551_core.c | 4 +---
 drivers/iio/accel/mma9553.c      | 1 -
 3 files changed, 1 insertion(+), 5 deletions(-)

Comments

Mauro Carvalho Chehab May 12, 2021, 1:37 p.m. UTC | #1
Em Sun,  9 May 2021 12:33:32 +0100
Jonathan Cameron <jic23@kernel.org> escreveu:

> From: Jonathan Cameron <Jonathan.Cameron@huawei.com>
> 
> Both these drivers call pm_runtime_put_no_idle() when the reference
> count should already be zero as there is no matching get()
> 
> Whilst here use pm_runtime_resume_and_get() rather than open coding.

LGTM.

Reviewed-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>

> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
> ---
>  drivers/iio/accel/mma9551.c      | 1 -
>  drivers/iio/accel/mma9551_core.c | 4 +---
>  drivers/iio/accel/mma9553.c      | 1 -
>  3 files changed, 1 insertion(+), 5 deletions(-)
> 
> diff --git a/drivers/iio/accel/mma9551.c b/drivers/iio/accel/mma9551.c
> index 08a2303cc9df..4c359fb05480 100644
> --- a/drivers/iio/accel/mma9551.c
> +++ b/drivers/iio/accel/mma9551.c
> @@ -515,7 +515,6 @@ static int mma9551_remove(struct i2c_client *client)
>  
>  	pm_runtime_disable(&client->dev);
>  	pm_runtime_set_suspended(&client->dev);
> -	pm_runtime_put_noidle(&client->dev);
>  
>  	mutex_lock(&data->mutex);
>  	mma9551_set_device_state(data->client, false);
> diff --git a/drivers/iio/accel/mma9551_core.c b/drivers/iio/accel/mma9551_core.c
> index 666e7a04a7d7..fbf2e2c45678 100644
> --- a/drivers/iio/accel/mma9551_core.c
> +++ b/drivers/iio/accel/mma9551_core.c
> @@ -664,7 +664,7 @@ int mma9551_set_power_state(struct i2c_client *client, bool on)
>  	int ret;
>  
>  	if (on)
> -		ret = pm_runtime_get_sync(&client->dev);
> +		ret = pm_runtime_resume_and_get(&client->dev);
>  	else {
>  		pm_runtime_mark_last_busy(&client->dev);
>  		ret = pm_runtime_put_autosuspend(&client->dev);
> @@ -673,8 +673,6 @@ int mma9551_set_power_state(struct i2c_client *client, bool on)
>  	if (ret < 0) {
>  		dev_err(&client->dev,
>  			"failed to change power state to %d\n", on);
> -		if (on)
> -			pm_runtime_put_noidle(&client->dev);
>  
>  		return ret;
>  	}
> diff --git a/drivers/iio/accel/mma9553.c b/drivers/iio/accel/mma9553.c
> index c15908faa381..ba3ecb3b57dc 100644
> --- a/drivers/iio/accel/mma9553.c
> +++ b/drivers/iio/accel/mma9553.c
> @@ -1154,7 +1154,6 @@ static int mma9553_remove(struct i2c_client *client)
>  
>  	pm_runtime_disable(&client->dev);
>  	pm_runtime_set_suspended(&client->dev);
> -	pm_runtime_put_noidle(&client->dev);
>  
>  	mutex_lock(&data->mutex);
>  	mma9551_set_device_state(data->client, false);



Thanks,
Mauro
Jonathan Cameron May 13, 2021, 4:42 p.m. UTC | #2
On Wed, 12 May 2021 15:37:57 +0200
Mauro Carvalho Chehab <mchehab+huawei@kernel.org> wrote:

> Em Sun,  9 May 2021 12:33:32 +0100
> Jonathan Cameron <jic23@kernel.org> escreveu:
> 
> > From: Jonathan Cameron <Jonathan.Cameron@huawei.com>
> > 
> > Both these drivers call pm_runtime_put_no_idle() when the reference
> > count should already be zero as there is no matching get()
> > 
> > Whilst here use pm_runtime_resume_and_get() rather than open coding.  
> 
> LGTM.
> 
> Reviewed-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
> 
> > Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>

Applied. Thanks,
> > ---
> >  drivers/iio/accel/mma9551.c      | 1 -
> >  drivers/iio/accel/mma9551_core.c | 4 +---
> >  drivers/iio/accel/mma9553.c      | 1 -
> >  3 files changed, 1 insertion(+), 5 deletions(-)
> > 
> > diff --git a/drivers/iio/accel/mma9551.c b/drivers/iio/accel/mma9551.c
> > index 08a2303cc9df..4c359fb05480 100644
> > --- a/drivers/iio/accel/mma9551.c
> > +++ b/drivers/iio/accel/mma9551.c
> > @@ -515,7 +515,6 @@ static int mma9551_remove(struct i2c_client *client)
> >  
> >  	pm_runtime_disable(&client->dev);
> >  	pm_runtime_set_suspended(&client->dev);
> > -	pm_runtime_put_noidle(&client->dev);
> >  
> >  	mutex_lock(&data->mutex);
> >  	mma9551_set_device_state(data->client, false);
> > diff --git a/drivers/iio/accel/mma9551_core.c b/drivers/iio/accel/mma9551_core.c
> > index 666e7a04a7d7..fbf2e2c45678 100644
> > --- a/drivers/iio/accel/mma9551_core.c
> > +++ b/drivers/iio/accel/mma9551_core.c
> > @@ -664,7 +664,7 @@ int mma9551_set_power_state(struct i2c_client *client, bool on)
> >  	int ret;
> >  
> >  	if (on)
> > -		ret = pm_runtime_get_sync(&client->dev);
> > +		ret = pm_runtime_resume_and_get(&client->dev);
> >  	else {
> >  		pm_runtime_mark_last_busy(&client->dev);
> >  		ret = pm_runtime_put_autosuspend(&client->dev);
> > @@ -673,8 +673,6 @@ int mma9551_set_power_state(struct i2c_client *client, bool on)
> >  	if (ret < 0) {
> >  		dev_err(&client->dev,
> >  			"failed to change power state to %d\n", on);
> > -		if (on)
> > -			pm_runtime_put_noidle(&client->dev);
> >  
> >  		return ret;
> >  	}
> > diff --git a/drivers/iio/accel/mma9553.c b/drivers/iio/accel/mma9553.c
> > index c15908faa381..ba3ecb3b57dc 100644
> > --- a/drivers/iio/accel/mma9553.c
> > +++ b/drivers/iio/accel/mma9553.c
> > @@ -1154,7 +1154,6 @@ static int mma9553_remove(struct i2c_client *client)
> >  
> >  	pm_runtime_disable(&client->dev);
> >  	pm_runtime_set_suspended(&client->dev);
> > -	pm_runtime_put_noidle(&client->dev);
> >  
> >  	mutex_lock(&data->mutex);
> >  	mma9551_set_device_state(data->client, false);  
> 
> 
> 
> Thanks,
> Mauro
diff mbox series

Patch

diff --git a/drivers/iio/accel/mma9551.c b/drivers/iio/accel/mma9551.c
index 08a2303cc9df..4c359fb05480 100644
--- a/drivers/iio/accel/mma9551.c
+++ b/drivers/iio/accel/mma9551.c
@@ -515,7 +515,6 @@  static int mma9551_remove(struct i2c_client *client)
 
 	pm_runtime_disable(&client->dev);
 	pm_runtime_set_suspended(&client->dev);
-	pm_runtime_put_noidle(&client->dev);
 
 	mutex_lock(&data->mutex);
 	mma9551_set_device_state(data->client, false);
diff --git a/drivers/iio/accel/mma9551_core.c b/drivers/iio/accel/mma9551_core.c
index 666e7a04a7d7..fbf2e2c45678 100644
--- a/drivers/iio/accel/mma9551_core.c
+++ b/drivers/iio/accel/mma9551_core.c
@@ -664,7 +664,7 @@  int mma9551_set_power_state(struct i2c_client *client, bool on)
 	int ret;
 
 	if (on)
-		ret = pm_runtime_get_sync(&client->dev);
+		ret = pm_runtime_resume_and_get(&client->dev);
 	else {
 		pm_runtime_mark_last_busy(&client->dev);
 		ret = pm_runtime_put_autosuspend(&client->dev);
@@ -673,8 +673,6 @@  int mma9551_set_power_state(struct i2c_client *client, bool on)
 	if (ret < 0) {
 		dev_err(&client->dev,
 			"failed to change power state to %d\n", on);
-		if (on)
-			pm_runtime_put_noidle(&client->dev);
 
 		return ret;
 	}
diff --git a/drivers/iio/accel/mma9553.c b/drivers/iio/accel/mma9553.c
index c15908faa381..ba3ecb3b57dc 100644
--- a/drivers/iio/accel/mma9553.c
+++ b/drivers/iio/accel/mma9553.c
@@ -1154,7 +1154,6 @@  static int mma9553_remove(struct i2c_client *client)
 
 	pm_runtime_disable(&client->dev);
 	pm_runtime_set_suspended(&client->dev);
-	pm_runtime_put_noidle(&client->dev);
 
 	mutex_lock(&data->mutex);
 	mma9551_set_device_state(data->client, false);