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Explore the intricacies of sharing reset GPIOs in the Linux kernel through this informative conference talk by Krzysztof Kozlowski from Linaro. Delve into the challenges posed by the current GPIO framework, which allows sharing but lacks abstractions for conflicting states. Examine common scenarios where devices on the same bus share reset or shutdown GPIOs, and the dilemma of asserting reset lines when devices have different sleep states. Discover existing solutions, including regulators and reset framework, and learn about ongoing efforts to address this issue through GPIO handling. Gain valuable insights into kernel development and hardware management in just 16 minutes.
