From: Wu Jian Gang <wujiangang@espressif.com>
Date: Fri, 2 Dec 2016 10:44:43 +0000 (+0800)
Subject: Merge branch 'bugfix/tw6904_mode_switch_cause_exception' into 'master'
X-Git-Tag: v1.0
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=refs%2Ftags%2Fv1.0;p=esp-idf

Merge branch 'bugfix/tw6904_mode_switch_cause_exception' into 'master'

esp32: fix tw6901

1. tw6904 - esp32 mode switch cause exception
2. tw8881 - set mac cause exception
3. Make pm_open/pm_shutdown thread-safe

See merge request !271
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