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Subject[PATCH 16/20] leds: mark pwm driver with LED_BRIGHTNESS_FAST flag

This driver doesn't use sleeping operations in .brightness_set
method if can_sleep variable is not set. In that case it can be
marked with LED_BRIGHTNESS_FAST flag.
That flag allows changing brightness at high rates (over 100Hz).

CC: Bryan Wu <cooloney@gmail.com>
CC: Richard Purdie <rpurdie@rpsys.net>
CC: Jacek Anaszewski <j.anaszewski@samsung.com>
CC: linux-leds@vger.kernel.org
CC: linux-kernel@vger.kernel.org
CC: Luotao Fu <l.fu@pengutronix.de>

Signed-off-by: Stas Sergeev <stsp@users.sourceforge.net>
---
drivers/leds/leds-pwm.c | 2 ++
1 file changed, 2 insertions(+)

diff --git a/drivers/leds/leds-pwm.c b/drivers/leds/leds-pwm.c
index 1d07e3e..82d01e5 100644
--- a/drivers/leds/leds-pwm.c
+++ b/drivers/leds/leds-pwm.c
@@ -124,6 +124,8 @@ static int led_pwm_add(struct device *dev, struct led_pwm_priv *priv,
led_data->can_sleep = pwm_can_sleep(led_data->pwm);
if (led_data->can_sleep)
INIT_WORK(&led_data->work, led_pwm_work);
+ else
+ led_data->cdev.flags |= LED_BRIGHTNESS_FAST;

led_data->period = pwm_get_period(led_data->pwm);
if (!led_data->period && (led->pwm_period_ns > 0))
--
1.7.9.5

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