Yangtao Li 8ceb29436c mmc: convert to DEFINE_SHOW_ATTRIBUTE
Use DEFINE_SHOW_ATTRIBUTE macro to simplify the code.

Signed-off-by: Yangtao Li <tiny.windzz@gmail.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2018-12-17 08:26:24 +01:00
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