diff options
| author |   Uwe Kleine-König <u.kleine-koenig@pengutronix.de> | 2022-05-06 16:15:35 +0200 |
|---|---|---|
| committer |   Thierry Reding <thierry.reding@gmail.com> | 2022-05-20 16:28:35 +0200 |
| commit | 57c95faabf094192049bffa5599ae6ab5ff88edf (patch) | |
| tree | d09c059f8a1557bcc358b0e90132bdc715223971 /drivers/pwm | |
| parent | pwm: sti: Implement .apply() callback (diff) | |
| download | linux-dev-57c95faabf094192049bffa5599ae6ab5ff88edf.tar.xz linux-dev-57c95faabf094192049bffa5599ae6ab5ff88edf.zip | |
pwm: stmpe: 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-stmpe.c | 29 |
1 files changed, 26 insertions, 3 deletions
diff --git a/drivers/pwm/pwm-stmpe.c b/drivers/pwm/pwm-stmpe.c index c4336d3bace3..5d4a4762ce0c 100644 --- a/drivers/pwm/pwm-stmpe.c +++ b/drivers/pwm/pwm-stmpe.c @@ -259,10 +259,33 @@ static int stmpe_24xx_pwm_config(struct pwm_chip *chip, struct pwm_device *pwm, return 0; } +static int stmpe_24xx_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) + stmpe_24xx_pwm_disable(chip, pwm); + + return 0; + } + + err = stmpe_24xx_pwm_config(pwm->chip, pwm, state->duty_cycle, state->period); + if (err) + return err; + + if (!pwm->state.enabled) + err = stmpe_24xx_pwm_enable(chip, pwm); + + return err; +} + static const struct pwm_ops stmpe_24xx_pwm_ops = { - .config = stmpe_24xx_pwm_config, - .enable = stmpe_24xx_pwm_enable, - .disable = stmpe_24xx_pwm_disable, + .apply = stmpe_24xx_pwm_apply, .owner = THIS_MODULE, }; |