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authorBoris Brezillon <boris.brezillon@free-electrons.com>2016-04-14 21:17:26 +0200
committerThierry Reding <thierry.reding@gmail.com>2016-05-17 14:45:02 +0200
commit1b50673dfa6486a69895bd45bb5eeaaede0a2b93 (patch)
treec8f7abecbf19506a97d956000f873b61669092cc
parentad4e9fec143c453cae145d7d5ccac902c37fb912 (diff)
leds: pwm: Use pwm_get_args() where appropriate
The PWM framework has clarified the concept of reference PWM config (the platform dependent config retrieved from the DT or the PWM lookup table) and real PWM state. Use pwm_get_args() when the PWM user wants to retrieve this reference config and not the current state. This is part of the rework allowing the PWM framework to support hardware readout and expose real PWM state even when the PWM has just been requested (before the user calls pwm_config/enable/disable()). Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com> Acked-by: Jacek Anaszewski <j.anaszewski@samsung.com> Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
-rw-r--r--drivers/leds/leds-pwm.c11
1 files changed, 10 insertions, 1 deletions
diff --git a/drivers/leds/leds-pwm.c b/drivers/leds/leds-pwm.c
index 4783bac..a9145aa 100644
--- a/drivers/leds/leds-pwm.c
+++ b/drivers/leds/leds-pwm.c
@@ -91,6 +91,7 @@ static int led_pwm_add(struct device *dev, struct led_pwm_priv *priv,
struct led_pwm *led, struct device_node *child)
{
struct led_pwm_data *led_data = &priv->leds[priv->num_leds];
+ struct pwm_args pargs;
int ret;
led_data->active_low = led->active_low;
@@ -117,7 +118,15 @@ static int led_pwm_add(struct device *dev, struct led_pwm_priv *priv,
else
led_data->cdev.brightness_set_blocking = led_pwm_set_blocking;
- led_data->period = pwm_get_period(led_data->pwm);
+ /*
+ * FIXME: pwm_apply_args() should be removed when switching to the
+ * atomic PWM API.
+ */
+ pwm_apply_args(led_data->pwm);
+
+ pwm_get_args(led_data->pwm, &pargs);
+
+ led_data->period = pargs.period;
if (!led_data->period && (led->pwm_period_ns > 0))
led_data->period = led->pwm_period_ns;