drivers: thermal: step_wise: add support for hysteresis
Step wise governor increases the mitigation level when the temperature goes above a threshold and will decrease the mitigation when the temperature falls below the threshold. If it were a case, where the temperature hovers around a threshold, the mitigation will be applied and removed at every iteration. This reaction to the temperature is inefficient for performance. The use of hysteresis temperature could avoid this ping-pong of mitigation by relaxing the mitigation to happen only when the temperature goes below this lower hysteresis value. Signed-off-by:Ram Chandrasekar <rkumbako@codeaurora.org> Signed-off-by:
Lina Iyer <ilina@codeaurora.org>
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