linux-kernel - Re: [PATCH 01/22] power: reset: Fix dependencies for !HAS

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Date:	Wed, 27 Jan 2016 09:02:51 +0100
From:	Richard Weinberger <richard@....at>
To:	Florian Fainelli <f.fainelli@...il.com>,
	linux-kernel@...r.kernel.org
Cc:	user-mode-linux-devel@...ts.sourceforge.net,
	Sebastian Reichel <sre@...nel.org>,
	Dmitry Eremin-Solenikov <dbaryshkov@...il.com>,
	David Woodhouse <dwmw2@...radead.org>,
	Alexandre Belloni <alexandre.belloni@...e-electrons.com>,
	Moritz Fischer <moritz.fischer@...us.com>,
	Jun Nie <jun.nie@...aro.org>, linux-pm@...r.kernel.org
Subject: Re: [PATCH 01/22] power: reset: Fix dependencies for !HAS_IOMEM archs

Am 27.01.2016 um 00:34 schrieb Florian Fainelli:
> On 25/01/16 14:24, Richard Weinberger wrote:
>> Not every arch has io memory.
>> So, unbreak the build by fixing the dependencies.
>>
>> Signed-off-by: Richard Weinberger <richard@....at>
>> ---
>>  drivers/power/reset/Kconfig | 2 ++
>>  1 file changed, 2 insertions(+)
>>
>> diff --git a/drivers/power/reset/Kconfig b/drivers/power/reset/Kconfig
>> index 1131cf7..0a6408a 100644
>> --- a/drivers/power/reset/Kconfig
>> +++ b/drivers/power/reset/Kconfig
>> @@ -148,6 +148,7 @@ config POWER_RESET_KEYSTONE
>>  config POWER_RESET_SYSCON
>>  	bool "Generic SYSCON regmap reset driver"
>>  	depends on OF
>> +	depends on HAS_IOMEM
>>  	select MFD_SYSCON
> 
> Should this dependency go into REGMAP_MMIO instead? MFD_SYSCON in itself
> does not issue I/O accesses per-se, but does use helpers from regmap,
> which in turn do it.

Hmmm, AFAICT this would not work as REGMAP_MMIO is not user visible and directly enabled
via "select" instead of "depends on". Hence, dependencies are ignored.

Thanks,
//richard