linux-kernel - Re: [PATCH, RFC 01/22] can: move CONFIG_HAVE_CAN_FLEXCAN out of CAN

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Message-ID: <5188C6FD.9010903@pengutronix.de>
Date:	Tue, 07 May 2013 11:18:53 +0200
From:	Marc Kleine-Budde <mkl@...gutronix.de>
To:	Arnd Bergmann <arnd@...db.de>
CC:	linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
	Oliver Hartkopp <socketcan@...tkopp.net>,
	linux-can@...r.kernel.org
Subject: Re: [PATCH, RFC 01/22] can: move CONFIG_HAVE_CAN_FLEXCAN out of CAN_DEV

On 05/03/2013 05:24 PM, Arnd Bergmann wrote:
> On Friday 03 May 2013, Marc Kleine-Budde wrote:
>> On 05/02/2013 05:16 PM, Arnd Bergmann wrote:
>>> CONFIG_HAVE_CAN_FLEXCAN is a silect symbol that is meant to be selected
>>> by platforms that support this driver, but that is not possible without
>>> also selecting CAN_DEV, unless we move it out of the "if CAN_DEV"
>>> section of the Kconfig file.
>>>
>>> warning: (SOC_IMX28 && SOC_IMX25 && SOC_IMX35 &&
>>>  IMX_HAVE_PLATFORM_FLEXCAN && SOC_IMX53 && SOC_IMX6Q) selects HAVE_CAN_FLEXCAN
>>>  which has unmet direct dependencies (NET && CAN && CAN_DEV)
>>
>> With the advent of multi platform kernels I like to get rid of
>> HAVE_CAN_FLEXCAN completely.
> 
> Yes, good idea. Are there any other dependencies we need to add then?
> I assume FLEXCAN needs to depend on HAS_IOMEM and OF at least, but
> there might be more.

The driver compiles (tested on SH and blacksfin) and works without
CONFIG_OF (on non DT arm platforms).

Marc
-- 
Pengutronix e.K.                  | Marc Kleine-Budde           |
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