| Message ID | 20240113224628.377993-3-martin.blumenstingl@googlemail.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | regulator: pwm-regulator: Fixes for disabled PWMs at boot | expand |
diff --git a/drivers/regulator/pwm-regulator.c b/drivers/regulator/pwm-regulator.c index 226ca4c62673..d27b9a7a30c9 100644 --- a/drivers/regulator/pwm-regulator.c +++ b/drivers/regulator/pwm-regulator.c @@ -157,6 +157,13 @@ static int pwm_regulator_get_voltage(struct regulator_dev *rdev) pwm_get_state(drvdata->pwm, &pstate); + if (!pstate.enabled) { + if (pstate.polarity == PWM_POLARITY_INVERSED) + pstate.duty_cycle = pstate.period; + else + pstate.duty_cycle = 0; + } + voltage = pwm_get_relative_duty_cycle(&pstate, duty_unit); if (voltage < min(max_uV_duty, min_uV_duty) || voltage > max(max_uV_duty, min_uV_duty))
If a PWM output is disabled then it's voltage has to be calculated based on a zero duty cycle (for normal polarity) or duty cycle being equal to the PWM period (for inverted polarity). Add support for this to pwm_regulator_get_voltage(). Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com> --- Changes from v1 -> v2: - update pstate.duty_cycle to catch out-of-range values with the new check from the first patch in this series drivers/regulator/pwm-regulator.c | 7 +++++++ 1 file changed, 7 insertions(+)