linux-kernel - Re: [PATCH v4 06/11] i2c: designware: Add Baytrail sem config DW I2C platform dependency

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Message-ID: <20200527154632.GG1634618@smile.fi.intel.com>
Date:   Wed, 27 May 2020 18:46:32 +0300
From:   Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
To:     Serge Semin <Sergey.Semin@...kalelectronics.ru>
Cc:     Serge Semin <fancer.lancer@...il.com>,
        Jarkko Nikula <jarkko.nikula@...ux.intel.com>,
        Wolfram Sang <wsa@...-dreams.de>,
        Alexey Malahov <Alexey.Malahov@...kalelectronics.ru>,
        Thomas Bogendoerfer <tsbogend@...ha.franken.de>,
        Mika Westerberg <mika.westerberg@...ux.intel.com>,
        Rob Herring <robh+dt@...nel.org>, linux-mips@...r.kernel.org,
        devicetree@...r.kernel.org, linux-i2c@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH v4 06/11] i2c: designware: Add Baytrail sem config DW I2C
 platform dependency

On Wed, May 27, 2020 at 05:24:06PM +0300, Serge Semin wrote:
> On Wed, May 27, 2020 at 04:42:20PM +0300, Andy Shevchenko wrote:
> > On Wed, May 27, 2020 at 03:01:06PM +0300, Serge Semin wrote:
> > > Currently Intel Baytrail I2C semaphore is a feature of the DW APB I2C
> > > platform driver. It's a bit confusing to see it's config in the menu at
> > > some separated place with no reference to the platform code. Let's move the
> > > config definition to be below the I2C_DESIGNWARE_PLATFORM config and mark
> > > it with "depends on I2C_DESIGNWARE_PLATFORM" statement. By doing so the
> > > config menu will display the feature right below the DW I2C platform
> > > driver item and will indent it to the right so signifying its belonging.

...

> > >  config I2C_DESIGNWARE_BAYTRAIL
> > >  	bool "Intel Baytrail I2C semaphore support"
> > >  	depends on ACPI
> > > +	depends on I2C_DESIGNWARE_PLATFORM
> > >  	depends on (I2C_DESIGNWARE_PLATFORM=m && IOSF_MBI) || \
> > >  		   (I2C_DESIGNWARE_PLATFORM=y && IOSF_MBI=y)
> > 
> > I didn't get this. What is broken now with existing dependencies?
> 
> With no explicit "depends on I2C_DESIGNWARE_PLATFORM" the entry isn't right
> shifted with respect to the I2C_DESIGNWARE_PLATFORM config entry in the kernel
> menuconfig. So it looks like a normal no-yes driver without it. 

I didn't get. Is there problems with current case? (I don't see it).
If there is a problem, it should have a separate patch and commit message.

As for now above excerpt seems redundant and unneeded churn.

-- 
With Best Regards,
Andy Shevchenko