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regulator: pwm-regulator: Add validity checks in continuous .get_voltage
[ Upstream commit c92688c ] Continuous regulators can be configured to operate only in a certain duty cycle range (for example from 0..91%). Add a check to error out if the duty cycle translates to an unsupported (or out of range) voltage. Suggested-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com> Link: https://msgid.link/r/20240113224628.377993-2-martin.blumenstingl@googlemail.com Signed-off-by: Mark Brown <broonie@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.org>
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