[PATCH 4/4] drm/exynos/decon5433: signal frame done interrupt at VSYNC

[Inki Dae]

2017년 02월 23일 01:05에 Andrzej Hajda 이(가) 쓴 글:
> DECON in case of video mode generates interrupt by default at start
> of vertical back porch. As this interrupt is used to generate VBLANK
> events more optimal point is start of vertical front porch.
> 
> Signed-off-by: Andrzej Hajda <a.hajda at samsung.com>
> ---
>  drivers/gpu/drm/exynos/exynos5433_drm_decon.c | 2 +-
>  include/video/exynos5433_decon.h              | 4 ++++
>  2 files changed, 5 insertions(+), 1 deletion(-)
> 
> diff --git a/drivers/gpu/drm/exynos/exynos5433_drm_decon.c b/drivers/gpu/drm/exynos/exynos5433_drm_decon.c
> index bfa9396..2694b32 100644
> --- a/drivers/gpu/drm/exynos/exynos5433_drm_decon.c
> +++ b/drivers/gpu/drm/exynos/exynos5433_drm_decon.c
> @@ -105,7 +105,7 @@ static int decon_enable_vblank(struct exynos_drm_crtc *crtc)
>  		if (ctx->out_type & IFTYPE_I80)
>  			val |= VIDINTCON0_FRAMEDONE;
>  		else
> -			val |= VIDINTCON0_INTFRMEN;
> +			val |= VIDINTCON0_INTFRMEN | VIDINTCON0_FRAMESEL_FP;
>  
>  		writel(val, ctx->addr + DECON_VIDINTCON0);
>  	}
> diff --git a/include/video/exynos5433_decon.h b/include/video/exynos5433_decon.h
> index beefc62..2391b03 100644
> --- a/include/video/exynos5433_decon.h
> +++ b/include/video/exynos5433_decon.h
> @@ -128,6 +128,10 @@
>  
>  /* VIDINTCON0 */
>  #define VIDINTCON0_FRAMEDONE		(1 << 17)
> +#define VIDINTCON0_FRAMESEL_BP		(0 << 15)
> +#define VIDINTCON0_FRAMESEL_VS		(1 << 15)
> +#define VIDINTCON0_FRAMESEL_AC		(2 << 15)

Above definitions are not used.

Thanks.

> +#define VIDINTCON0_FRAMESEL_FP		(3 << 15)
>  #define VIDINTCON0_INTFRMEN		(1 << 12)
>  #define VIDINTCON0_INTEN		(1 << 0)
>  
>