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Subject: Re: [PATCH 0/3] Add hardware dependency to TS-4800 board drivers
To: Damien Riegel <damien.riegel@savoirfairelinux.com>,
        Jean Delvare <jdelvare@suse.de>
References: <20160209111549.7e9b4fbb@endymion>
 <20160209150810.GA7014@localhost>
Cc: linux-kernel@vger.kernel.org, Dmitry Torokhov <dmitry.torokhov@gmail.com>,
        Thomas Gleixner <tglx@linutronix.de>,
        Jason Cooper <jason@lakedaemon.net>,
        Marc Zyngier <marc.zyngier@arm.com>, Wim Van Sebroeck <wim@iguana.be>
From: Guenter Roeck <linux@roeck-us.net>
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Date: Tue, 9 Feb 2016 07:16:26 -0800
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On 02/09/2016 07:08 AM, Damien Riegel wrote:
> Hi Jean,
>
> On Tue, Feb 09, 2016 at 11:15:49AM +0100, Jean Delvare wrote:
>> Hi all,
>>
>> This adds hardware dependency to 3 drivers for the Technologic Systems
>> TS-4800 board. Thanks to these dependencies, users of other systems
>> will not accidentally enable these drivers.
>
> These drivers are for IPs implemented in an FPGA. For now it is true
> that they are used only on one board with an iMX.51 but this is not a
> strong dependency and it might change in the future if Technologic
> Systems decide to reuse these IPs on boards based on different SoCs.
>
> As the FPGA and the SoC are two separate chips, I don't know how such
> dependency should be expressed in kconfig.
>

You could add a Kconfig option for the FPGA, which currently depends
on the SoC.

Guenter