diff options
| author | Uwe Kleine-König <u.kleine-koenig@pengutronix.de> | 2022-05-07 11:43:37 +0300 |
|---|---|---|
| committer | Thierry Reding <thierry.reding@gmail.com> | 2022-05-20 17:29:16 +0300 |
| commit | 758de66f4bd2cac2b1d71db917c65c3d611d4e74 (patch) | |
| tree | 00a941c4eb0668b553a906d9ed1926cc330cab80 /drivers/pwm/pwm-mediatek.c | |
| parent | 5fa3b87fe8fb1ce941c6418539f7b8062c0dea9c (diff) | |
| download | linux-758de66f4bd2cac2b1d71db917c65c3d611d4e74.tar.xz | |
pwm: mediatek: 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>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
Diffstat (limited to 'drivers/pwm/pwm-mediatek.c')
| -rw-r--r-- | drivers/pwm/pwm-mediatek.c | 29 |
1 files changed, 26 insertions, 3 deletions
diff --git a/drivers/pwm/pwm-mediatek.c b/drivers/pwm/pwm-mediatek.c index 28c2d0e5a8ac..d28c0874c7f2 100644 --- a/drivers/pwm/pwm-mediatek.c +++ b/drivers/pwm/pwm-mediatek.c @@ -198,10 +198,33 @@ static void pwm_mediatek_disable(struct pwm_chip *chip, struct pwm_device *pwm) pwm_mediatek_clk_disable(chip, pwm); } +static int pwm_mediatek_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) + pwm_mediatek_disable(chip, pwm); + + return 0; + } + + err = pwm_mediatek_config(pwm->chip, pwm, state->duty_cycle, state->period); + if (err) + return err; + + if (!pwm->state.enabled) + err = pwm_mediatek_enable(chip, pwm); + + return err; +} + static const struct pwm_ops pwm_mediatek_ops = { - .config = pwm_mediatek_config, - .enable = pwm_mediatek_enable, - .disable = pwm_mediatek_disable, + .apply = pwm_mediatek_apply, .owner = THIS_MODULE, }; |