[PATCH 2/2] drm/amdgpu/display: restore the backlight on modeset (v2)

[Harry Wentland]

On 2021-05-11 11:44 a.m., Alex Deucher wrote:
> To stay consistent with the user's setting.
> 
> v2: rebase on multi-eDP support
> 

Series is
Reviewed-by: Harry Wentland <harry.wentland at amd.com>

Harry

> Bug: https://gitlab.freedesktop.org/drm/amd/-/issues/1337>> Signed-off-by: Alex Deucher <alexander.deucher at amd.com>
> ---
>  drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 6 ++++++
>  1 file changed, 6 insertions(+)
> 
> diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
> index 167c8759fbc9..979e4dafa735 100644
> --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
> +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
> @@ -9075,6 +9075,12 @@ static void amdgpu_dm_atomic_commit_tail(struct drm_atomic_state *state)
>  	/* Update audio instances for each connector. */
>  	amdgpu_dm_commit_audio(dev, state);
>  
> +#if defined(CONFIG_BACKLIGHT_CLASS_DEVICE) ||		\
> +	defined(CONFIG_BACKLIGHT_CLASS_DEVICE_MODULE)
> +	/* restore the backlight level */
> +	if (dm->backlight_dev)
> +		amdgpu_dm_backlight_set_level(dm, dm->brightness[0]);
> +#endif
>  	/*
>  	 * send vblank event on all events not handled in flip and
>  	 * mark consumed event for drm_atomic_helper_commit_hw_done
>