linux/drivers/mmc
Anand Gadiyar 4a3dc6ef34 mmc: omap_hsmmc: fix ocr mask usage
The OMAP HSMMC driver uses an ocr_mask to determine the list of voltages
supported by the card. It populates this mask based on the list of
voltages supported by the regulator that supplies the voltage.

Commit 64be97822b (omap4 hsmmc: Update ocr mask for MMC2 for regulator
to use) passed a fixed ocr_mask from the OMAP4 SDP board file to limit
the voltage to 2.9-3.0 Volts, and updated the driver to use this mask
if provided, instead of using the regulator's supported voltages.

However the commit is buggy - the ocr_mask is overridden by the
regulator's capabilities anyway. Fix this.

(The bug shows up when a system-wide suspend is attempted on the OMAP4
SDP/Blaze platforms. The eMMC card comes up at 3V, but drops to 1.65V
after the system resumes).

Signed-off-by: Anand Gadiyar <gadiyar@ti.com>
Acked-by: Balaji T K <balajitk@ti.com>
Acked-by: Venkatraman S <svenkatr@ti.com>
Tested-by: Kishore Kadiyala <kishore.kadiyala@ti.com>
Signed-off-by: Sourav Poddar <sourav.poddar@ti.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
2011-06-25 18:50:17 -04:00
..
card mmc: core: Block CMD23 support for UHS104/SDXC cards. 2011-05-25 16:49:03 -04:00
core mmc: sdio: fix runtime PM path during driver removal 2011-06-25 18:49:55 -04:00
host mmc: omap_hsmmc: fix ocr mask usage 2011-06-25 18:50:17 -04:00
Kconfig mmc: explicitly mention SDIO support in Kconfig 2008-10-12 11:04:36 +02:00
Makefile mmc: Makefile: Fix EXTRA_CFLAGS assignment 2010-10-23 21:11:15 +08:00