On Sat, Oct 29, 2022 at 03:48:50PM -0300, antoniospg wrote:
> Test plan:
>
> * Turn off:
> echo 1 > /sys/class/backlight/nv_backlight/bl_power
>
> * Turn on:
> echo 0 > /sys/class/backlight/nv_backlight/bl_power
>
> Signed-off-by: antoniospg <antoniospg100@xxxxxxxxx>
> ---
> drivers/gpu/drm/nouveau/nouveau_backlight.c | 11 ++++++++++-
> 1 file changed, 10 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/gpu/drm/nouveau/nouveau_backlight.c b/drivers/gpu/drm/nouveau/nouveau_backlight.c
> index a2141d3d9b1d..855d0ce9f7fa 100644
> --- a/drivers/gpu/drm/nouveau/nouveau_backlight.c
> +++ b/drivers/gpu/drm/nouveau/nouveau_backlight.c
> @@ -263,7 +263,16 @@ nva3_set_intensity(struct backlight_device *bd)
> u32 div, val;
>
> div = nvif_rd32(device, NV50_PDISP_SOR_PWM_DIV(or));
> - val = (bd->props.brightness * div) / 100;
> +
> + switch (bd->props.power) {
> + case FB_BLANK_UNBLANK:
> + val = (bd->props.brightness * div) / 100;
> + break;
> + default:
> + val = 0;
> + break;
> + }
> +
Consider the following change:
val = backlight_get_brightness(bd);
if (val)
val = (val * dev) / 100;
Then you avoid hard coding the use of FB_BLANK_UNBLANK.
Sam
