diff options
| author |  Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
| 2022-05-06 16:09:52 +0200 |
|---|---|---|
| committer |  Thierry Reding <thierry.reding@gmail.com>
| 2022-05-20 16:28:18 +0200 |
| commit | b2e60b32b4fe5da4cf7fedd976416b5f47f62332 (patch) | |
| tree | 74683c392881ec22625c6b11d1462c979b4dbf7b /drivers/pwm | |
| parent | pwm: pwm-mediatek: Add support for MediaTek Helio X10 MT6795 (diff) | |
| download | linux-b2e60b32b4fe5da4cf7fedd976416b5f47f62332.tar.gz linux-b2e60b32b4fe5da4cf7fedd976416b5f47f62332.tar.bz2 linux-b2e60b32b4fe5da4cf7fedd976416b5f47f62332.zip | |
pwm: sti: Implement .apply() callback
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@pengutronix.de>
Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
Diffstat (limited to 'drivers/pwm')
| -rw-r--r-- | drivers/pwm/pwm-sti.c | 29 |
1 files changed, 26 insertions, 3 deletions
diff --git a/drivers/pwm/pwm-sti.c b/drivers/pwm/pwm-sti.c index f491d56254d7..44b1f93256b3 100644 --- a/drivers/pwm/pwm-sti.c +++ b/drivers/pwm/pwm-sti.c @@ -391,11 +391,34 @@ out: return ret; } +static int sti_pwm_apply(struct pwm_chip *chip, struct pwm_device *pwm, + const struct pwm_state *state) +{ + int err; + + if (state->polarity != PWM_POLARITY_NORMAL) + return -EINVAL; + + if (!state->enabled) { + if (pwm->state.enabled) + sti_pwm_disable(chip, pwm); + + return 0; + } + + err = sti_pwm_config(pwm->chip, pwm, state->duty_cycle, state->period); + if (err) + return err; + + if (!pwm->state.enabled) + err = sti_pwm_enable(chip, pwm); + + return err; +} + static const struct pwm_ops sti_pwm_ops = { .capture = sti_pwm_capture, - .config = sti_pwm_config, - .enable = sti_pwm_enable, - .disable = sti_pwm_disable, + .apply = sti_pwm_apply, .free = sti_pwm_free, .owner = THIS_MODULE, }; |