30.09.2020 03:30, Nicolin Chen пишет: ... > int tegra_mc_write_emem_configuration(struct tegra_mc *mc, unsigned long rate); > unsigned int tegra_mc_get_emem_device_count(struct tegra_mc *mc); > +struct tegra_mc *tegra_get_memory_controller(void); > > #endif /* __SOC_TEGRA_MC_H__ */ > This will conflict with the tegra20-devfreq driver, you should change it as well.