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2025-07-07pwm: argon-fan-hat: Add Argon40 Fan HAT supportMarek Vasut
Add trivial PWM driver for Argon40 Fan HAT, which is a RaspberryPi blower fan hat which can be controlled over I2C. Model this device as a PWM, so the pwm-fan can be attached to it and handle thermal zones and RPM management in a generic manner. Signed-off-by: Marek Vasut <marek.vasut+renesas@mailbox.org> Link: https://lore.kernel.org/r/20250629220757.936212-3-marek.vasut+renesas@mailbox.org Signed-off-by: Uwe Kleine-König <ukleinek@kernel.org>