diff options
Diffstat (limited to 'drivers/pwm')
| -rw-r--r-- | drivers/pwm/pwm-tegra.c | 30 |
1 files changed, 27 insertions, 3 deletions
diff --git a/drivers/pwm/pwm-tegra.c b/drivers/pwm/pwm-tegra.c index 7fc03a9ec154..dad9978c9186 100644 --- a/drivers/pwm/pwm-tegra.c +++ b/drivers/pwm/pwm-tegra.c @@ -230,10 +230,34 @@ static void tegra_pwm_disable(struct pwm_chip *chip, struct pwm_device *pwm) pm_runtime_put_sync(pc->dev); } +static int tegra_pwm_apply(struct pwm_chip *chip, struct pwm_device *pwm, + const struct pwm_state *state) +{ + int err; + bool enabled = pwm->state.enabled; + + if (state->polarity != PWM_POLARITY_NORMAL) + return -EINVAL; + + if (!state->enabled) { + if (enabled) + tegra_pwm_disable(chip, pwm); + + return 0; + } + + err = tegra_pwm_config(pwm->chip, pwm, state->duty_cycle, state->period); + if (err) + return err; + + if (!enabled) + err = tegra_pwm_enable(chip, pwm); + + return err; +} + static const struct pwm_ops tegra_pwm_ops = { - .config = tegra_pwm_config, - .enable = tegra_pwm_enable, - .disable = tegra_pwm_disable, + .apply = tegra_pwm_apply, .owner = THIS_MODULE, }; |