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The BCM590xx PMUs have two I2C registers for reading the PMU ID and revision. The revision is useful for subdevice drivers, since different revisions may have slight differences in behavior (for example - BCM59054 has different regulator configurations for revision A0 and A1). Check the PMU ID register and make sure it matches the DT compatible. Fetch the digital and analog revision from the PMUREV register so that it can be used in subdevice drivers. Also add some known revision values to bcm590xx.h, for convenience when writing subdevice drivers. Signed-off-by: Artur Weber <aweber.kernel@gmail.com> Reviewed-by: Stanislav Jakubek <stano.jakubek@gmail.com> Link: https://lore.kernel.org/r/20250515-bcm59054-v9-4-14ba0ea2ea5b@gmail.com Signed-off-by: Lee Jones <lee@kernel.org> |
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