This driver doesn't use sleeping operations in .brightness_set
method, and can be marked with LED_BRIGHTNESS_FAST flag.
That flag allows changing brightness at high rates (over 100Hz).

CC: Bryan Wu <[email protected]>
CC: Richard Purdie <[email protected]>
CC: Jacek Anaszewski <[email protected]>
CC: [email protected]
CC: [email protected]
CC: Dave Hansen <[email protected]>

Signed-off-by: Stas Sergeev <[email protected]>
---
 drivers/leds/leds-ss4200.c |    1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/leds/leds-ss4200.c b/drivers/leds/leds-ss4200.c
index 046cb70..99e8348 100644
--- a/drivers/leds/leds-ss4200.c
+++ b/drivers/leds/leds-ss4200.c
@@ -487,6 +487,7 @@ static int register_nasgpio_led(int led_nr)
                led->brightness = LED_FULL;
        led->brightness_set = nasgpio_led_set_brightness;
        led->blink_set = nasgpio_led_set_blink;
+       led->flags |= LED_BRIGHTNESS_FAST;
        led->groups = nasgpio_led_groups;
        ret = led_classdev_register(&nas_gpio_pci_dev->dev, led);
        if (ret)
-- 
1.7.9.5
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