[PATCH v5 42/46] backlight: lp8788: switch to the atomic PWM API

Boris Brezillon
2016-03-30T20:06:12Z

pwm_config/enable/disable() have been deprecated and should be replaced
by pwm_apply_state().

Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
---
drivers/video/backlight/lp8788_bl.c | 17 +++++++++--------
1 file changed, 9 insertions(+), 8 deletions(-)

diff --git a/drivers/video/backlight/lp8788_bl.c b/drivers/video/backlight/lp8788_bl.c
index 5d583d7..521c730 100644
--- a/drivers/video/backlight/lp8788_bl.c
+++ b/drivers/video/backlight/lp8788_bl.c
@@ -124,16 +124,13 @@ static int lp8788_backlight_configure(struct lp8788_bl *bl)

static void lp8788_pwm_ctrl(struct lp8788_bl *bl, int br, int max_br)
{
- unsigned int period;
- unsigned int duty;
struct device *dev;
+ struct pwm_state pstate;
struct pwm_device *pwm;

if (!bl->pdata)
return;

- period = bl->pdata->period_ns;
- duty = br * period / max_br;
dev = bl->lp->dev;

/* request PWM device with the consumer name */
@@ -147,11 +144,15 @@ static void lp8788_pwm_ctrl(struct lp8788_bl *bl, int br, int max_br)
bl->pwm = pwm;
}

- pwm_config(bl->pwm, duty, period);
- if (duty)
- pwm_enable(bl->pwm);
+ pwm_get_state(bl->pwm, &pstate);
+ pstate.period = bl->pdata->period_ns;
+ pstate.duty_cycle = br * pstate.period / max_br;
+ if (pstate.duty_cycle)
+ pstate.enabled = true;
else
- pwm_disable(bl->pwm);
+ pstate.enabled = false;
+
+ pwm_apply_state(bl->pwm, &pstate);
}

static int lp8788_bl_update_status(struct backlight_device *bl_dev)
--
2.5.0