drm/msm/dpu: Use OPP API to set clk/perf state
On some qualcomm platforms DPU needs to express a performance state requirement on a power domain depending on the clock rates. Use OPP table from DT to register with OPP framework and use dev_pm_opp_set_rate() to set the clk/perf state. Signed-off-by: NRajendra Nayak <rnayak@codeaurora.org> Reviewed-by: NRob Clark <robdclark@chromium.org> Reviewed-by: NMatthias Kaehlcke <mka@chromium.org> Signed-off-by: NRob Clark <robdclark@chromium.org>
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