dc1c02e666
Currently performance numbers are captured for each SDCC transfers unconditionally which may add the overhead and could reduce the SDCC read/write throughput numbers. This change adds additional control for enabling/disabling the capturing of performance numbers at runtime. We already have sysfs entry named "perf" for msm sdcc devices. Currently setting this entry to 0 clears the performance statistics. But now we are changing the definition of this entry as mentioned below: Disable performance capturing and clear the performance statistics: "echo 0 > /sys/devices/platform/msm_sdcc.<n>/perf" Enable performance capturing: "echo 1 > /sys/devices/platform/msm_sdcc.<n>/perf" CRs-fixed: 345170 Change-Id: I3ab9288fd87cc8a8ada6c0c3d066cac4f68d79b7 Signed-off-by: Subhash Jadavani <subhashj@codeaurora.org>