linux-kernel - Re: [PATCH] mmc: mxs-mmc: Add broken-cd devicetree property

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Date:	Sat, 6 Apr 2013 17:06:54 +0200
From:	Marek Vasut <marex@...x.de>
To:	Alexandre Pereira da Silva <aletes.xgr@...il.com>
Cc:	"Marc Kleine-Budde" <mkl@...gutronix.de>,
	Chris Ball <cjb@...top.org>, Shawn Guo <shawn.guo@...aro.org>,
	fabio.estevam@...escale.com,
	Otavio Salvador <otavio@...ystems.com.br>,
	Mark Brown <broonie@...nsource.wolfsonmicro.com>,
	linux-mmc@...r.kernel.org, LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] mmc: mxs-mmc: Add broken-cd devicetree property

Dear Alexandre Pereira da Silva,

> On Sat, Apr 6, 2013 at 10:58 AM, Marc Kleine-Budde <mkl@...gutronix.de> wrote:
> > According to the documentation broken card detect is something different
> > 
> > than non-removable:
> > >   - broken-cd: There is no card detection available; polling must be
> > >   used. - non-removable: non-removable slot (like eMMC); assume always
> > >   present.
> > 
> > But mxs-mmc set MMC_CAP_NEEDS_POLL unconditionally.
> 
> I will work on a better way to fix this.

NEEDS_POLL looks nice and seems to fit this case.

Best regards,
Marek Vasut
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