diff mbox

[v2,1/4] i2c: designware-platdrv: enable RuntimePM before registering to the core

Message ID 1444383567-18113-1-git-send-email-wsa@the-dreams.de (mailing list archive)
State Accepted
Delegated to: Geert Uytterhoeven
Headers show

Commit Message

Wolfram Sang Oct. 9, 2015, 9:39 a.m. UTC
From: Wolfram Sang <wsa+renesas@sang-engineering.com>

The core may register clients attached to this master which may use
funtionality from the master. So, RuntimePM must be enabled before, otherwise
this will fail.

Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
---
 drivers/i2c/busses/i2c-designware-platdrv.c | 13 +++++++------
 1 file changed, 7 insertions(+), 6 deletions(-)

Comments

Wolfram Sang Oct. 15, 2015, 11:49 a.m. UTC | #1
On Fri, Oct 09, 2015 at 10:39:24AM +0100, Wolfram Sang wrote:
> From: Wolfram Sang <wsa+renesas@sang-engineering.com>
> 
> The core may register clients attached to this master which may use
> funtionality from the master. So, RuntimePM must be enabled before, otherwise
> this will fail.
> 
> Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>

No feedback here, but for the other two drivers the same principle was
acked. CCing Mika, just in case.

Applied to for-current, thanks!

> ---
>  drivers/i2c/busses/i2c-designware-platdrv.c | 13 +++++++------
>  1 file changed, 7 insertions(+), 6 deletions(-)
> 
> diff --git a/drivers/i2c/busses/i2c-designware-platdrv.c b/drivers/i2c/busses/i2c-designware-platdrv.c
> index 3dd2de31a2f8d3..73d58415bbc100 100644
> --- a/drivers/i2c/busses/i2c-designware-platdrv.c
> +++ b/drivers/i2c/busses/i2c-designware-platdrv.c
> @@ -253,12 +253,6 @@ static int dw_i2c_probe(struct platform_device *pdev)
>  	adap->dev.parent = &pdev->dev;
>  	adap->dev.of_node = pdev->dev.of_node;
>  
> -	r = i2c_add_numbered_adapter(adap);
> -	if (r) {
> -		dev_err(&pdev->dev, "failure adding adapter\n");
> -		return r;
> -	}
> -
>  	if (dev->pm_runtime_disabled) {
>  		pm_runtime_forbid(&pdev->dev);
>  	} else {
> @@ -268,6 +262,13 @@ static int dw_i2c_probe(struct platform_device *pdev)
>  		pm_runtime_enable(&pdev->dev);
>  	}
>  
> +	r = i2c_add_numbered_adapter(adap);
> +	if (r) {
> +		dev_err(&pdev->dev, "failure adding adapter\n");
> +		pm_runtime_disable(&pdev->dev);
> +		return r;
> +	}
> +
>  	return 0;
>  }
>  
> -- 
> 2.1.4
>
Mika Westerberg Oct. 15, 2015, 12:27 p.m. UTC | #2
On Thu, Oct 15, 2015 at 01:49:25PM +0200, Wolfram Sang wrote:
> On Fri, Oct 09, 2015 at 10:39:24AM +0100, Wolfram Sang wrote:
> > From: Wolfram Sang <wsa+renesas@sang-engineering.com>
> > 
> > The core may register clients attached to this master which may use
> > funtionality from the master. So, RuntimePM must be enabled before, otherwise
> > this will fail.
> > 
> > Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
> 
> No feedback here, but for the other two drivers the same principle was
> acked. CCing Mika, just in case.

Looks good to me :-)

> 
> Applied to for-current, thanks!
> 
> > ---
> >  drivers/i2c/busses/i2c-designware-platdrv.c | 13 +++++++------
> >  1 file changed, 7 insertions(+), 6 deletions(-)
> > 
> > diff --git a/drivers/i2c/busses/i2c-designware-platdrv.c b/drivers/i2c/busses/i2c-designware-platdrv.c
> > index 3dd2de31a2f8d3..73d58415bbc100 100644
> > --- a/drivers/i2c/busses/i2c-designware-platdrv.c
> > +++ b/drivers/i2c/busses/i2c-designware-platdrv.c
> > @@ -253,12 +253,6 @@ static int dw_i2c_probe(struct platform_device *pdev)
> >  	adap->dev.parent = &pdev->dev;
> >  	adap->dev.of_node = pdev->dev.of_node;
> >  
> > -	r = i2c_add_numbered_adapter(adap);
> > -	if (r) {
> > -		dev_err(&pdev->dev, "failure adding adapter\n");
> > -		return r;
> > -	}
> > -
> >  	if (dev->pm_runtime_disabled) {
> >  		pm_runtime_forbid(&pdev->dev);
> >  	} else {
> > @@ -268,6 +262,13 @@ static int dw_i2c_probe(struct platform_device *pdev)
> >  		pm_runtime_enable(&pdev->dev);
> >  	}
> >  
> > +	r = i2c_add_numbered_adapter(adap);
> > +	if (r) {
> > +		dev_err(&pdev->dev, "failure adding adapter\n");
> > +		pm_runtime_disable(&pdev->dev);
> > +		return r;
> > +	}
> > +
> >  	return 0;
> >  }
> >  
> > -- 
> > 2.1.4
> > 


--
To unsubscribe from this list: send the line "unsubscribe linux-sh" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
diff mbox

Patch

diff --git a/drivers/i2c/busses/i2c-designware-platdrv.c b/drivers/i2c/busses/i2c-designware-platdrv.c
index 3dd2de31a2f8d3..73d58415bbc100 100644
--- a/drivers/i2c/busses/i2c-designware-platdrv.c
+++ b/drivers/i2c/busses/i2c-designware-platdrv.c
@@ -253,12 +253,6 @@  static int dw_i2c_probe(struct platform_device *pdev)
 	adap->dev.parent = &pdev->dev;
 	adap->dev.of_node = pdev->dev.of_node;
 
-	r = i2c_add_numbered_adapter(adap);
-	if (r) {
-		dev_err(&pdev->dev, "failure adding adapter\n");
-		return r;
-	}
-
 	if (dev->pm_runtime_disabled) {
 		pm_runtime_forbid(&pdev->dev);
 	} else {
@@ -268,6 +262,13 @@  static int dw_i2c_probe(struct platform_device *pdev)
 		pm_runtime_enable(&pdev->dev);
 	}
 
+	r = i2c_add_numbered_adapter(adap);
+	if (r) {
+		dev_err(&pdev->dev, "failure adding adapter\n");
+		pm_runtime_disable(&pdev->dev);
+		return r;
+	}
+
 	return 0;
 }