linux-kernel - Re: [patch 2.6.29-rc5] MMC: omap_hsmmc: only MMC1 allows HCTL.SDVS != 1.8V

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Date:	Wed, 18 Feb 2009 21:22:37 +0100
From:	Pierre Ossman <drzeus-mmc@...eus.cx>
To:	David Brownell <david-b@...bell.net>
Cc:	lkml <linux-kernel@...r.kernel.org>,
	Tony Lindgren <tony@...mide.com>
Subject: Re: [patch 2.6.29-rc5] MMC: omap_hsmmc: only MMC1 allows HCTL.SDVS
 != 1.8V

On Tue, 17 Feb 2009 14:49:01 -0800
David Brownell <david-b@...bell.net> wrote:

> From: David Brownell <dbrownell@...rs.sourceforge.net>
> 
> Based on a patch from Tony Lindgren ... after initialization,
> never change HCTL.SDVS except for MMC1.  The other controller
> instances only support 1.8V in that field, although they can
> suport other card/SDIO/eMMC/... voltages with level shifting
> solutions such as external transceivers.
> 
> MMC2 behavior sanity tested on Overo/WLAN, OMAP3430 SDP, and
> custom hardware.  MMC1 also sanity tested on those platforms
> plus Beagle.  This also fixes a bug preventing MMC2 (and also
> presumably MMC3) from powering down when requested.
> 
> Signed-off-by: David Brownell <dbrownell@...rs.sourceforge.net>
> ---

This suffers from the same problem as all other omap_hsmmc patches. Who
claims ownership of that driver?

-- 
     -- Pierre Ossman

  Linux kernel, MMC maintainer        http://www.kernel.org
  rdesktop, core developer          http://www.rdesktop.org

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