diff options
| author | Maíra Canal <mairacanal@riseup.net> | 2022-07-14 23:53:34 +0200 |
|---|---|---|
| committer | Lee Jones <lee@kernel.org> | 2022-07-19 11:49:27 +0200 |
| commit | f2ac0a8f8a0366fdb77a46d07f32be406aa9fcb4 (patch) | |
| tree | 5680ec0856005eb36c06a9ec2d016513216ea2ae /drivers/video/backlight | |
| parent | dt-bindings: backlight: Update Lee Jones' email address (diff) | |
| download | linux-f2ac0a8f8a0366fdb77a46d07f32be406aa9fcb4.tar.xz linux-f2ac0a8f8a0366fdb77a46d07f32be406aa9fcb4.zip | |
backlight: lp855x: Switch to atomic PWM API
Remove legacy PWM interface (pwm_config, pwm_enable, pwm_disable) and
replace it for the atomic PWM API.
Signed-off-by: Maíra Canal <mairacanal@riseup.net>
Reviewed-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Reviewed-by: Daniel Thompson <daniel.thompson@linaro.org>
Signed-off-by: Lee Jones <lee@kernel.org>
Link: https://lore.kernel.org/r/20220714215334.78226-1-mairacanal@riseup.net
Diffstat (limited to 'drivers/video/backlight')
| -rw-r--r-- | drivers/video/backlight/lp855x_bl.c | 21 |
1 files changed, 9 insertions, 12 deletions
diff --git a/drivers/video/backlight/lp855x_bl.c b/drivers/video/backlight/lp855x_bl.c index 2b9e2bbbb03e..fc02c5c16055 100644 --- a/drivers/video/backlight/lp855x_bl.c +++ b/drivers/video/backlight/lp855x_bl.c @@ -218,9 +218,8 @@ err: static void lp855x_pwm_ctrl(struct lp855x *lp, int br, int max_br) { - unsigned int period = lp->pdata->period_ns; - unsigned int duty = br * period / max_br; struct pwm_device *pwm; + struct pwm_state state; /* request pwm device with the consumer name */ if (!lp->pwm) { @@ -230,18 +229,16 @@ static void lp855x_pwm_ctrl(struct lp855x *lp, int br, int max_br) lp->pwm = pwm; - /* - * FIXME: pwm_apply_args() should be removed when switching to - * the atomic PWM API. - */ - pwm_apply_args(pwm); + pwm_init_state(lp->pwm, &state); + } else { + pwm_get_state(lp->pwm, &state); } - pwm_config(lp->pwm, duty, period); - if (duty) - pwm_enable(lp->pwm); - else - pwm_disable(lp->pwm); + state.period = lp->pdata->period_ns; + state.duty_cycle = div_u64(br * state.period, max_br); + state.enabled = state.duty_cycle; + + pwm_apply_state(lp->pwm, &state); } static int lp855x_bl_update_status(struct backlight_device *bl) |