omap4 hsmmc: Update ocr mask for MMC2 for regulator to use
authorkishore kadiyala <kishore.kadiyala@ti.com>
Fri, 1 Oct 2010 23:35:28 +0000 (16:35 -0700)
committerTony Lindgren <tony@atomide.com>
Fri, 1 Oct 2010 23:35:28 +0000 (16:35 -0700)
commit64be97822b781e921c7eda2d4089fd1fdf3aabba
tree418919f2ab1d1796364fdcc9a39cb904b75450db
parent91a0b089f8358aec866bc9c69da8b84c77beaaf3
omap4 hsmmc: Update ocr mask for MMC2 for regulator to use

On OMAP4, MMC2 controller has eMMC which draws power from VAUX regulator
on TWL. Though the eMMC supports dual voltage[1.8v/3v] as per ocr register,
its VCC is fixed at 3V for operation. With this once the mmc core selects
the minimum voltage[1.8] supported based on the ocr value read from OCR register,
eMMC will not get detected. Thus the platform data for MMC2 is updated with ocr
mask and same will be communicated to core which will set the regulator to
always operate at 3V when ever turned ON.

Cc: Tony Lindgren <tony@atomide.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Madhusudhan Chikkature <madhu.cr@ti.com>
Cc: Adrian Hunter <adrian.hunter@nokia.com>
Signed-off-by: Kishore Kadiyala <kishore.kadiyala@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
arch/arm/mach-omap2/board-4430sdp.c
drivers/mmc/host/omap_hsmmc.c