Subject: Re: [PATCH 1/3] at91_mci: Enable MMC_CAP_SDIO_IRQ only when it
	actually works
From: ian <spyro@f2s.com>
To: Pierre Ossman <drzeus@drzeus.cx>
Cc: Nicolas Ferre <nicolas.ferre@atmel.com>,
       Linux Kernel list <linux-kernel@vger.kernel.org>,
       ARM Linux Mailing List 
	<linux-arm-kernel@lists.arm.linux.org.uk>,
       Andrew Victor <linux@maxim.org.za>
In-Reply-To: <20080719010143.142d59a0@mjolnir.drzeus.cx>
References: <487F120F.2050305@atmel.com>
	 <20080717125544.36f41947@mjolnir.drzeus.cx> <48809B00.1070405@atmel.com>
	 <20080719010143.142d59a0@mjolnir.drzeus.cx>
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Date: Sun, 20 Jul 2008 10:55:39 +0100
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On Sat, 2008-07-19 at 01:01 +0200, Pierre Ossman wrote:
> > In your opinion, a printed warning that says to be sure to use only 
> > 4-bit mode SDIO cards on slot B... is not acceptable ?
> 
> It's not really up to the user. The SDIO spec does not mandate 4-bit
> support, so some cards will not have it.

That seems overly rigid.

its not linux violating the spec, its the SDIO controller in this case.

I see no harm in supporting what the hardware is actually capable of.

It wouldnt be the first bit of broken hardware supported by linux.

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