msm: mdss: detach the SMMU when display goes off
Detach SMMU when display goes off, and attach it when display
goes on. This prevents clocks left on while display goes off.
Change-Id: I50d96424bb030af55fa502241009ffc2dc1b1575
Signed-off-by:
Xiaoming Zhou <zhoux@codeaurora.org>
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