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Explore the intricacies of Power Management Integrated Circuits (PMICs) in modern SOC systems through this informative conference talk. Gain a comprehensive overview of PMICs and their associated drivers, delving into the complexities of powering up contemporary SOCs with multiple stable power sources. Discover the importance of run-time voltage control for optimizing power usage, achieving power savings, and mitigating heating issues. Examine the integration of advanced features such as RTC, Watchdog, and battery chargers with power input. Dive deep into the implementation of functional-safety related notifiers via the Linux regulator framework, learning how to communicate abnormal conditions like over-/under voltage, current, and temperature. Engage with the speaker's insights on informing these conditions through notifiers while considering audience experiences and perspectives on their usage.