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path: root/drivers/video/pwm_backlight.c
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Diffstat (limited to 'drivers/video/pwm_backlight.c')
-rw-r--r--drivers/video/pwm_backlight.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/video/pwm_backlight.c b/drivers/video/pwm_backlight.c
index d7c0969..46c16a8 100644
--- a/drivers/video/pwm_backlight.c
+++ b/drivers/video/pwm_backlight.c
@@ -63,7 +63,7 @@ static int set_pwm(struct pwm_backlight_priv *priv)
int ret;
if (priv->period_ns) {
- duty_cycle = priv->period_ns * (priv->cur_level - priv->min_level) /
+ duty_cycle = (u64)priv->period_ns * (priv->cur_level - priv->min_level) /
(priv->max_level - priv->min_level);
ret = pwm_set_config(priv->pwm, priv->channel, priv->period_ns,
duty_cycle);