tree 23c3b19e0caeb3b6ed96db532eafbfdd7c300aca
parent c9b5061e7728da1f7192ecaf3ffab4a7300920dc
author Chaotian Jing <chaotian.jing@mediatek.com> 1445927068 +0800
committer Ulf Hansson <ulf.hansson@linaro.org> 1445938721 +0100

mmc: mmc: extend the mmc_send_tuning()

The mmc_execute_tuning() has already prepared the opcode,
there is no need to prepare it again at mmc_send_tuning(),
and, there is a BUG of mmc_send_tuning() to determine the opcode
by bus width, assume eMMC was running at HS200, 4bit mode,
then the mmc_send_tuning() will overwrite the opcode from CMD21
to CMD19, then got error.

in addition, extend an argument of "cmd_error" to allow getting
if there was cmd error when tune response.

Signed-off-by: Chaotian Jing <chaotian.jing@mediatek.com>
[Ulf: Rebased patch]
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>