mmc: core: Fix select power class after resume
authorFredrik Soderstedt <fredrik.soderstedt@stericsson.com>
Tue, 23 Apr 2013 14:27:07 +0000 (16:27 +0200)
committerChris Ball <cjb@laptop.org>
Sun, 26 May 2013 18:23:18 +0000 (14:23 -0400)
commit60443712195bbcbbff9af189bdd9d2c1ef0a5cae
tree8556da51a7cc4f852f49cca47dff38bec7bee1a6
parent07a682160866e302d696f5c76d74024d575fb79d
mmc: core: Fix select power class after resume

Use the saved values in card->ext_csd when selecting power class.
By doing this the power class will be selected even if mmc_init_card
is called with oldcard != NULL, which is the case after a suspend/resume.

Today ext_csd is NULL if mmc_init_card is called with oldcard != NULL
and power class will not be selected.

According to the eMMC specification the POWER_CLASS value is reset after
power failure, H/W reset assertion and any CMD0 reset.

Signed-off-by: Fredrik Soderstedt <fredrik.soderstedt@stericsson.com>
Reviewed-by: Johan Rudholm <jrudholm@gmail.com>
Acked By: Girish K S <girish.shivananjappa@linaro.org>
Signed-off-by: Chris Ball <cjb@laptop.org>
drivers/mmc/core/mmc.c
include/linux/mmc/card.h