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* PM / devfreq: Introduce driver for NVIDIA Tegra20Dmitry Osipenko2019-08-241-0/+212
Add devfreq driver for NVIDIA Tegra20 SoC's. The driver periodically reads out Memory Controller counters and adjusts memory frequency based on the memory clients activity. Reviewed-by: Chanwoo Choi <cw00.choi@samsung.com> Signed-off-by: Dmitry Osipenko <digetx@gmail.com> [Removed MAINTAINERS updates by MyungJoo so that it can be sent elsewhere.] Signed-off-by: MyungJoo Ham <myungjoo.ham@samsung.com>