Commit 0f523bdb authored by Ken Zhang's avatar Ken Zhang Committed by Gerrit - the friendly Code Review server
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msm: display: pp: histogram collection for mdss 



MSMFB_HISTOGRAM_START, MSMFB_HISTOGRAM_STOP and MSMFB_HISTOGRAM support
Only read the histogram data when there is a new display commit
Only generate the next histogram collection when there is a display commit
Cache the histogram data in order to respond quickly

Change-Id: I4532eca3bb8daa9e03ef78770c9e47d968c7c140
Signed-off-by: default avatarKen Zhang <kenz@codeaurora.org>
parent bf5fb4c1
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