[v2,1/9] mfd: cs5535-mfd: Use PLATFORM_DEVID_* defines and tidy error message
diff mbox series

Message ID 20191021105822.20271-2-lee.jones@linaro.org
State New
Headers show
Series
  • Simplify MFD Core
Related show

Commit Message

Lee Jones Oct. 21, 2019, 10:58 a.m. UTC
In most contexts '-1' doesn't really mean much to the casual observer.
In almost all cases, it's better to use a human readable define.  In
this case PLATFORM_DEVID_* defines have already been provided for this
purpose.

While we're here, let's be specific about the 'MFD devices' which
failed.  It will help when trying to distinguish which of the 2 sets
of sub-devices we actually failed to register.

Signed-off-by: Lee Jones <lee.jones@linaro.org>
---
 drivers/mfd/cs5535-mfd.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

Comments

Daniel Thompson Oct. 21, 2019, 11:15 a.m. UTC | #1
On Mon, Oct 21, 2019 at 11:58:14AM +0100, Lee Jones wrote:
> In most contexts '-1' doesn't really mean much to the casual observer.
> In almost all cases, it's better to use a human readable define.  In
> this case PLATFORM_DEVID_* defines have already been provided for this
> purpose.
> 
> While we're here, let's be specific about the 'MFD devices' which
> failed.  It will help when trying to distinguish which of the 2 sets
> of sub-devices we actually failed to register.

No objections... but won't the tag added by dev_err() already
disambiguate?
> 
> Signed-off-by: Lee Jones <lee.jones@linaro.org>
> ---
>  drivers/mfd/cs5535-mfd.c | 5 +++--
>  1 file changed, 3 insertions(+), 2 deletions(-)
> 
> diff --git a/drivers/mfd/cs5535-mfd.c b/drivers/mfd/cs5535-mfd.c
> index f1825c0ccbd0..2c47afc22d24 100644
> --- a/drivers/mfd/cs5535-mfd.c
> +++ b/drivers/mfd/cs5535-mfd.c
> @@ -127,10 +127,11 @@ static int cs5535_mfd_probe(struct pci_dev *pdev,
>  		cs5535_mfd_cells[i].id = 0;
>  	}
>  
> -	err = mfd_add_devices(&pdev->dev, -1, cs5535_mfd_cells,
> +	err = mfd_add_devices(&pdev->dev, PLATFORM_DEVID_NONE, cs5535_mfd_cells,
>  			      ARRAY_SIZE(cs5535_mfd_cells), NULL, 0, NULL);
>  	if (err) {
> -		dev_err(&pdev->dev, "MFD add devices failed: %d\n", err);
> +		dev_err(&pdev->dev,
> +			"Failed to add CS5532 sub-devices: %d\n", err);

                                           ^^^

Typo (and MODULE_DESCRIPTION() says this is a driver for CS5536 too).
Once that is fixed:
Reviewed-by: Daniel Thompson <daniel.thompson@linaro.org>


Daniel.
Lee Jones Oct. 21, 2019, 11:33 a.m. UTC | #2
On Mon, 21 Oct 2019, Daniel Thompson wrote:

> On Mon, Oct 21, 2019 at 11:58:14AM +0100, Lee Jones wrote:
> > In most contexts '-1' doesn't really mean much to the casual observer.
> > In almost all cases, it's better to use a human readable define.  In
> > this case PLATFORM_DEVID_* defines have already been provided for this
> > purpose.
> > 
> > While we're here, let's be specific about the 'MFD devices' which
> > failed.  It will help when trying to distinguish which of the 2 sets
> > of sub-devices we actually failed to register.
> 
> No objections... but won't the tag added by dev_err() already
> disambiguate?

The difference will be between CS5532 and  CS5532 OLPC.

Please see patch 4 in the series.

> > Signed-off-by: Lee Jones <lee.jones@linaro.org>
> > ---
> >  drivers/mfd/cs5535-mfd.c | 5 +++--
> >  1 file changed, 3 insertions(+), 2 deletions(-)
> > 
> > diff --git a/drivers/mfd/cs5535-mfd.c b/drivers/mfd/cs5535-mfd.c
> > index f1825c0ccbd0..2c47afc22d24 100644
> > --- a/drivers/mfd/cs5535-mfd.c
> > +++ b/drivers/mfd/cs5535-mfd.c
> > @@ -127,10 +127,11 @@ static int cs5535_mfd_probe(struct pci_dev *pdev,
> >  		cs5535_mfd_cells[i].id = 0;
> >  	}
> >  
> > -	err = mfd_add_devices(&pdev->dev, -1, cs5535_mfd_cells,
> > +	err = mfd_add_devices(&pdev->dev, PLATFORM_DEVID_NONE, cs5535_mfd_cells,
> >  			      ARRAY_SIZE(cs5535_mfd_cells), NULL, 0, NULL);
> >  	if (err) {
> > -		dev_err(&pdev->dev, "MFD add devices failed: %d\n", err);
> > +		dev_err(&pdev->dev,
> > +			"Failed to add CS5532 sub-devices: %d\n", err);
> 
>                                            ^^^
> 
> Typo (and MODULE_DESCRIPTION() says this is a driver for CS5536 too).
> Once that is fixed:
> Reviewed-by: Daniel Thompson <daniel.thompson@linaro.org>

Ta.
Lee Jones Oct. 21, 2019, 11:35 a.m. UTC | #3
On Mon, 21 Oct 2019, Lee Jones wrote:

> On Mon, 21 Oct 2019, Daniel Thompson wrote:
> 
> > On Mon, Oct 21, 2019 at 11:58:14AM +0100, Lee Jones wrote:
> > > In most contexts '-1' doesn't really mean much to the casual observer.
> > > In almost all cases, it's better to use a human readable define.  In
> > > this case PLATFORM_DEVID_* defines have already been provided for this
> > > purpose.
> > > 
> > > While we're here, let's be specific about the 'MFD devices' which
> > > failed.  It will help when trying to distinguish which of the 2 sets
> > > of sub-devices we actually failed to register.
> > 
> > No objections... but won't the tag added by dev_err() already
> > disambiguate?
> 
> The difference will be between CS5532 and  CS5532 OLPC.
> 
> Please see patch 4 in the series.
> 
> > > Signed-off-by: Lee Jones <lee.jones@linaro.org>
> > > ---
> > >  drivers/mfd/cs5535-mfd.c | 5 +++--
> > >  1 file changed, 3 insertions(+), 2 deletions(-)
> > > 
> > > diff --git a/drivers/mfd/cs5535-mfd.c b/drivers/mfd/cs5535-mfd.c
> > > index f1825c0ccbd0..2c47afc22d24 100644
> > > --- a/drivers/mfd/cs5535-mfd.c
> > > +++ b/drivers/mfd/cs5535-mfd.c
> > > @@ -127,10 +127,11 @@ static int cs5535_mfd_probe(struct pci_dev *pdev,
> > >  		cs5535_mfd_cells[i].id = 0;
> > >  	}
> > >  
> > > -	err = mfd_add_devices(&pdev->dev, -1, cs5535_mfd_cells,
> > > +	err = mfd_add_devices(&pdev->dev, PLATFORM_DEVID_NONE, cs5535_mfd_cells,
> > >  			      ARRAY_SIZE(cs5535_mfd_cells), NULL, 0, NULL);
> > >  	if (err) {
> > > -		dev_err(&pdev->dev, "MFD add devices failed: %d\n", err);
> > > +		dev_err(&pdev->dev,
> > > +			"Failed to add CS5532 sub-devices: %d\n", err);
> > 
> >                                            ^^^
> > 
> > Typo (and MODULE_DESCRIPTION() says this is a driver for CS5536 too).
> > Once that is fixed:
> > Reviewed-by: Daniel Thompson <daniel.thompson@linaro.org>
> 
> Ta.

Looks like this comes from the failed message from the
mfd_add_devices() above.  I'll fix both.

Patch
diff mbox series

diff --git a/drivers/mfd/cs5535-mfd.c b/drivers/mfd/cs5535-mfd.c
index f1825c0ccbd0..2c47afc22d24 100644
--- a/drivers/mfd/cs5535-mfd.c
+++ b/drivers/mfd/cs5535-mfd.c
@@ -127,10 +127,11 @@  static int cs5535_mfd_probe(struct pci_dev *pdev,
 		cs5535_mfd_cells[i].id = 0;
 	}
 
-	err = mfd_add_devices(&pdev->dev, -1, cs5535_mfd_cells,
+	err = mfd_add_devices(&pdev->dev, PLATFORM_DEVID_NONE, cs5535_mfd_cells,
 			      ARRAY_SIZE(cs5535_mfd_cells), NULL, 0, NULL);
 	if (err) {
-		dev_err(&pdev->dev, "MFD add devices failed: %d\n", err);
+		dev_err(&pdev->dev,
+			"Failed to add CS5532 sub-devices: %d\n", err);
 		goto err_disable;
 	}