Re: [PATCH v8 07/14] drm/amd: Indicate driver supports luminance

[Thomas Zimmermann <tzimmermann@suse.de>]

Hi

Am 08.09.26 um 06:40 schrieb Mario Limonciello:
> This will allow the connector to show luminance information for
> eDP panels.
>
> Signed-off-by: Mario Limonciello (AMD) <superm1@kernel.org>
> ---
>   drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c | 1 +
>   1 file changed, 1 insertion(+)
>
> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
> index 3ca98091ce487..7b54ca8beeb4c 100644
> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
> @@ -3124,6 +3124,7 @@ static const struct drm_driver amdgpu_kms_driver = {
>   	    DRIVER_ATOMIC |
>   	    DRIVER_GEM |
>   	    DRIVER_RENDER | DRIVER_MODESET | DRIVER_SYNCOBJ |
> +	    DRIVER_CONNECTOR_LUMINANCE |

Can't user space just try to read the connector property. If it get's 
-EINVAL, luminance is not supported.

Best regards
Thomas

>   	    DRIVER_SYNCOBJ_TIMELINE,
>   	.open = amdgpu_driver_open_kms,
>   	.postclose = amdgpu_driver_postclose_kms,

-- 
--
Thomas Zimmermann
Graphics Driver Developer
SUSE Software Solutions Germany GmbH
Frankenstr. 146, 90461 Nürnberg, Germany, www.suse.com
GF: Jochen Jaser, Andrew McDonald, (HRB 36809, AG Nürnberg)