diff options
| author | Martin Blumenstingl <martin.blumenstingl@googlemail.com> | 2024-01-14 01:46:27 +0300 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2024-01-22 18:31:22 +0300 |
| commit | 6a7d11efd6915d80a025f2a0be4ae09d797b91ec (patch) | |
| tree | cdce0f27460b862f76dec269aa8e5cc71746d905 | |
| parent | c92688cac239794e4a1d976afa5203a4d3a2ac0e (diff) | |
| download | linux-6a7d11efd6915d80a025f2a0be4ae09d797b91ec.tar.xz | |
regulator: pwm-regulator: Calculate the output voltage for disabled PWMs
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>
Link: https://msgid.link/r/20240113224628.377993-3-martin.blumenstingl@googlemail.com
Signed-off-by: Mark Brown <broonie@kernel.org>
| -rw-r--r-- | drivers/regulator/pwm-regulator.c | 7 |
1 files changed, 7 insertions, 0 deletions
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)) |