From mboxrd@z Thu Jan  1 00:00:00 1970
From: tony@atomide.com (Tony Lindgren)
Date: Tue, 29 May 2012 05:47:32 -0700
Subject: Regression for non-eMMC cards with commit fa550189?
In-Reply-To: <20120529074047.GE16340@arwen.pp.htv.fi>
References: <20120528132147.GC12766@atomide.com>
 <CAPDyKFrcviT3_Fz13LpFJ+1oKxQ5LKswN7EmzVcWTJkiiDWusA@mail.gmail.com>
 <20120529074047.GE16340@arwen.pp.htv.fi>
Message-ID: <20120529124732.GD12766@atomide.com>
To: linux-arm-kernel@lists.infradead.org
List-Id: linux-arm-kernel.lists.infradead.org

* Felipe Balbi <balbi@ti.com> [120529 00:46]:
> 
> Can you enable debugging on menelaus so we see what the driver is doing ?
> 
> I believe that to change the VMMC's supply voltage you need to turn off
> the regulator, meaning LDO_CTRL7[1:0] = 0b00.

Looks like it's some kind of race between the slots that now gets triggered
in the omap driver.

Commenting out the second slot in the board file fixes things. I tried adding
a mutex to protect the sequence between POWER_UP and POWER_ON, but no luck yet.

Also adding printk statements here and there makes it work again.

Regards,

Tony