From 758de66f4bd2cac2b1d71db917c65c3d611d4e74 Mon Sep 17 00:00:00 2001 From: =?utf8?q?Uwe=20Kleine-K=C3=B6nig?= Date: Sat, 7 May 2022 10:43:37 +0200 Subject: [PATCH] pwm: mediatek: Implement .apply() callback MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit 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 Reviewed-by: AngeloGioacchino Del Regno Signed-off-by: Thierry Reding --- drivers/pwm/pwm-mediatek.c | 29 ++++++++++++++++++++++++++--- 1 file changed, 26 insertions(+), 3 deletions(-) diff --git a/drivers/pwm/pwm-mediatek.c b/drivers/pwm/pwm-mediatek.c index 28c2d0e..d28c087 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, }; -- 2.7.4