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Anson Huang authored
1. BUS freq's set low bus setpoint using delat work, which didn't have mutex lock, so in some scenarios, set high bus freq function can be called at the same time, we need to move mutex lock into these two routine; 2. Using pm notify to make sure bus freq set to high setpoint before supend and restore after resume. 3. Clear build warning. Signed-off-by: Anson Huang <b20788@freescale.com>
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