Re: [PATCH v3 2/3] leds: Add driver for Qualcomm LPG

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On Mon 2017-11-20 13:10:33, Bjorn Andersson wrote:
> On Sun 19 Nov 13:36 PST 2017, Jacek Anaszewski wrote:
> 
> > Hi Bjorn,
> > 
> > Thanks for the patch. Please refer to my comments in the code.
> > 
> > On 11/15/2017 08:13 AM, Bjorn Andersson wrote:
> [..]
> > > diff --git a/drivers/leds/Kconfig b/drivers/leds/Kconfig
> > > index 52ea34e337cd..ccc3aa4b2474 100644
> > > --- a/drivers/leds/Kconfig
> > > +++ b/drivers/leds/Kconfig
> > > @@ -651,6 +651,13 @@ config LEDS_POWERNV
> > >  	  To compile this driver as a module, choose 'm' here: the module
> > >  	  will be called leds-powernv.
> > >  
> > > +config LEDS_QCOM_LPG
> > > +	tristate "LED support for Qualcomm LPG"
> > > +	depends on LEDS_CLASS
> > 
> > You were mentioning that this driver is for a MFD child block,
> > so we should probably depend on the parent MFD driver?
> > 
> 
> There's no build time dependency between the two, so it's not strictly
> necessary.
> 
> Adding a dependency on MFD_SPMI_PMIC would indirectly add a dependency
> on ARCH_QCOM, which limit build testing and stop some static code
> checkers to check the driver.
> 
> So, unless you strongly object I would prefer not to mention the
> MFD.

OTOH, this way even users that can't have qualcom LPG are asked the
question.

So right way is depends on LEdS_CLASS && (BUILD_TEST || MFD_SPMI_PMIC).

								Pavel
-- 
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html

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