Re: [PATCH] ACPI / Fan: Use bus id for INT3404 Fan

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Corrected email address.
On Tue, 2014-12-09 at 15:26 -0800, Srinivas Pandruvada wrote: 
> On Tue, 2014-12-09 at 22:43 +0100, Rafael J. Wysocki wrote: 
> > On Tuesday, December 09, 2014 12:53:05 PM Srinivas Pandruvada wrote:
> > > The ART table refers to actual bus id name for specifying relationship.
> > > Naming "Fan" is not enough as name in the ART table can change on every
> > > platform.
> > > 
> > > Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@xxxxxxxxxxxxxxx>
> > > ---
> > >  drivers/acpi/fan.c | 8 +++++++-
> > >  1 file changed, 7 insertions(+), 1 deletion(-)
> > > 
> > > diff --git a/drivers/acpi/fan.c b/drivers/acpi/fan.c
> > > index caf9b76..c9213bc 100644
> > > --- a/drivers/acpi/fan.c
> > > +++ b/drivers/acpi/fan.c
> > > @@ -325,6 +325,7 @@ static int acpi_fan_probe(struct platform_device *pdev)
> > >  	struct thermal_cooling_device *cdev;
> > >  	struct acpi_fan *fan;
> > >  	struct acpi_device *device = ACPI_COMPANION(&pdev->dev);
> > > +	char *name;
> > >  
> > >  	fan = devm_kzalloc(&pdev->dev, sizeof(*fan), GFP_KERNEL);
> > >  	if (!fan) {
> > > @@ -346,7 +347,12 @@ static int acpi_fan_probe(struct platform_device *pdev)
> > >  		}
> > >  	}
> > >  
> > > -	cdev = thermal_cooling_device_register("Fan", device,
> > > +	if (!strncmp(pdev->name, "INT3404", strlen("INT3404")))
> > 
> > strcmp() should be sufficient here (we need to have a match to get to this point
> > anyway).
> The pdev->name comes up with instance number: INT3404:00, so only
> comparing "INT3404" as we can have multiple instances.
> 
> > 
> > That said I'd compare with "PNP0C0B" and then use "Fan" if that's matching
> > or the device ID otherwise.
> I will submit another patch with this change.
> Here also it comes up with PNPC0B:instance number, so still have to
> compare only "PNPC0B"
> 
> Thanks,
> Srinivas 
> > > +		name = acpi_device_bid(device);
> > > +	else
> > > +		name = "Fan";
> > > +
> > > +	cdev = thermal_cooling_device_register(name, device,
> > >  						&fan_cooling_ops);
> > >  	if (IS_ERR(cdev)) {
> > >  		result = PTR_ERR(cdev);
> > > 
> > 
> > And please CC ACPI patches to linux-acpi.
> > 
> 

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