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d83e13761d
Integrate the regulator framework to the PSE framework for enhanced access to features such as voltage, power measurement, and limits, which are akin to regulators. Additionally, PSE features like port priorities could potentially enhance the regulator framework. Note that this integration introduces some implementation complexity, including wrapper callbacks, but the potential benefits make it worthwhile. Regulator are using enable counter with specific behavior. Two calls to regulator_disable will trigger kernel warnings. If the counter exceeds one, regulator_disable call won't disable the PSE PI. These behavior isn't suitable for PSE control. Added a boolean 'enabled' state to prevent multiple calls to regulator_enable/disable. These calls will only be called from PSE framework as it won't have any regulator children, therefore no mutex are needed to safeguards this boolean. regulator_get needs the consumer device pointer. Use PSE as regulator provider and consumer device until we have RJ45 ports represented in the Kernel. Signed-off-by: Kory Maincent <kory.maincent@bootlin.com> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Link: https://lore.kernel.org/r/20240417-feature_poe-v9-10-242293fd1900@bootlin.com Signed-off-by: Jakub Kicinski <kuba@kernel.org> |
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