On Mon, Jul 04, 2016 at 12:04:12PM +0200, Matej Groma wrote:
> For the sake of internal consistency, unset maximum brightness of eco
> led and make it activatable only on values >= LED_FULL.
>
> Signed-off-by: Matej Groma <matejgroma@xxxxxxxxx>
Acked-by: Jonathan Woithe <jwoithe@xxxxxxxxxx>
> ---
> Here is a small statistics covering max brightness of platform-x86 leds:
> 1 other unset
> 8 6 7
> 3/7 leds that have unset max_brightness are activated on nonzero value.
> The other 4 are fujitsu-laptop leds. Maybe someone from led subsystem
> would be willing to look at this and standardise guidelines on how and
> when to use different brightness levels. Hopefully, this could then be
> reverted.
>
> drivers/platform/x86/fujitsu-laptop.c | 5 ++---
> 1 file changed, 2 insertions(+), 3 deletions(-)
>
> diff --git a/drivers/platform/x86/fujitsu-laptop.c b/drivers/platform/x86/fujitsu-laptop.c
> index 6ce8e78..61f39ab 100644
> --- a/drivers/platform/x86/fujitsu-laptop.c
> +++ b/drivers/platform/x86/fujitsu-laptop.c
> @@ -212,7 +212,6 @@ static void eco_led_set(struct led_classdev *cdev,
>
> static struct led_classdev eco_led = {
> .name = "fujitsu::eco_led",
> - .max_brightness = 1,
> .brightness_get = eco_led_get,
> .brightness_set = eco_led_set
> };
> @@ -306,7 +305,7 @@ static void eco_led_set(struct led_classdev *cdev,
> int curr;
>
> curr = call_fext_func(FUNC_LEDS, 0x2, ECO_LED, 0x0);
> - if (brightness)
> + if (brightness >= LED_FULL)
> call_fext_func(FUNC_LEDS, 0x1, ECO_LED, curr | ECO_LED_ON);
> else
> call_fext_func(FUNC_LEDS, 0x1, ECO_LED, curr & ~ECO_LED_ON);
> @@ -352,7 +351,7 @@ static enum led_brightness eco_led_get(struct led_classdev *cdev)
> enum led_brightness brightness = LED_OFF;
>
> if (call_fext_func(FUNC_LEDS, 0x2, ECO_LED, 0x0) & ECO_LED_ON)
> - brightness = cdev->max_brightness;
> + brightness = LED_FULL;
>
> return brightness;
> }
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