From: Uwe Kleine-König <u.kleine-koenig@xxxxxxxxxxxxxx>
To eventually get rid of all legacy drivers convert this driver to the
modern world implementing .apply().
This just pushed a variant of pwm_apply_legacy() into the driver that was
slightly simplified because the driver doesn't provide a .set_polarity()
callback.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@xxxxxxxxxxxxxx>
---
drivers/pwm/pwm-tegra.c | 30 +++++++++++++++++++++++++++---
1 file changed, 27 insertions(+), 3 deletions(-)
diff --git a/drivers/pwm/pwm-tegra.c b/drivers/pwm/pwm-tegra.c
index e5a9ffef4a71..30d331bbe718 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,
};
base-commit: 2bf8ee0faa988b5cec3503ebf2f970a0e84d24ee
--
2.35.1
