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(parent: 1704bf1) | patch
ARM: OMAP4: MMC: increase delay for pbias
authorBalaji T K <balajitk@ti.com>
Wed, 1 Jun 2011 11:15:22 +0000 (16:45 +0530)
committerTony Lindgren <tony@atomide.com>
Wed, 1 Jun 2011 11:48:15 +0000 (04:48 -0700)
commit1fcecf281b99f9ca262ae7fbc3703c421be5c857
tree2da4fdfd6c8c04cf476898a555777314e5c1012ctree | snapshot (tar.gz zip)
parent1704bf15deb6de20f8f4272c8d8232b36bbc7484commit | diff
ARM: OMAP4: MMC: increase delay for pbias

4 micro seconds is not enough for PBIAS if MMC regulator is
enabled from MMC regulator OFF.
Increase the delay for PBIAS to stabilize.
Wait for PBIAS and timeout if not.

Resolves MMC/SD failure on OMAP4
"Pbias Voltage is not same as LDO"

Signed-off-by: Balaji T K <balajitk@ti.com>
Acked-by: Kishore Kadiyala <kishore.kadiyala@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
arch/arm/mach-omap2/hsmmc.c diff | blob | blame | history