[PATCH 2/2] drm/fsl-dcu: enable IRQ before drm_atomic_helper_resume()

[Noralf Trønnes]

Den 10.11.2017 17.25, skrev Stefan Agner:
> The resume helpers wait for a vblank to occurre hence IRQ need
> to be enabled. This avoids a warning as follows during resume:
>    WARNING: CPU: 0 PID: 314 at drivers/gpu/drm/drm_atomic_helper.c:1249 drm_atomic_helper_wait_for_vblanks.part.1+0x284/0x288
>    [CRTC:28:crtc-0] vblank wait timed out
>
> Signed-off-by: Stefan Agner <stefan at agner.ch>
> ---
>   drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_drv.c | 3 +--
>   1 file changed, 1 insertion(+), 2 deletions(-)
>
> diff --git a/drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_drv.c b/drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_drv.c
> index 24f234902646..aeeaf0bcf646 100644
> --- a/drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_drv.c
> +++ b/drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_drv.c
> @@ -225,9 +225,8 @@ static int fsl_dcu_drm_pm_resume(struct device *dev)
>   		fsl_tcon_bypass_enable(fsl_dev->tcon);
>   	fsl_dcu_drm_init_planes(fsl_dev->drm);
>   
> -	drm_mode_config_helper_resume(fsl_dev->drm);
> -
>   	enable_irq(fsl_dev->irq);
> +	drm_mode_config_helper_resume(fsl_dev->drm);
>   
>   	return 0;
>   }

Acked-by: Noralf Trønnes <noralf at tronnes.org>