linux-kernel - Re: [PATCH 15/15] drm/exynos/fimc: fix source buffer registers

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Date:	Tue, 26 Aug 2014 14:57:51 +0900
From:	Joonyoung Shim <jy0922.shim@...sung.com>
To:	Andrzej Hajda <a.hajda@...sung.com>,
	Inki Dae <inki.dae@...sung.com>
Cc:	Marek Szyprowski <m.szyprowski@...sung.com>,
	Seung-Woo Kim <sw0312.kim@...sung.com>,
	Kyungmin Park <kyungmin.park@...sung.com>,
	dri-devel@...ts.freedesktop.org,
	open list <linux-kernel@...r.kernel.org>,
	"moderated list:ARM/S5P EXYNOS AR..." 
	<linux-samsung-soc@...r.kernel.org>,
	Joonyoung Shim <jy0922.shim@...sung.com>
Subject: Re: [PATCH 15/15] drm/exynos/fimc: fix source buffer registers

Hi Andrzej,

On 08/22/2014 04:52 PM, Andrzej Hajda wrote:
> FIMC in default mode of operation uses only one input buffer,
> but the driver used also second buffer, as a result only the
> first frame was processed correctly. The patch fixes it.

I can't understand well, then we don't need to distinguish buf_id in
fimc_src_set_addr()?

> 
> Signed-off-by: Andrzej Hajda <a.hajda@...sung.com>
> ---
>  drivers/gpu/drm/exynos/exynos_drm_fimc.c | 16 ++++++++--------
>  1 file changed, 8 insertions(+), 8 deletions(-)
> 
> diff --git a/drivers/gpu/drm/exynos/exynos_drm_fimc.c b/drivers/gpu/drm/exynos/exynos_drm_fimc.c
> index b20078e..e985253 100644
> --- a/drivers/gpu/drm/exynos/exynos_drm_fimc.c
> +++ b/drivers/gpu/drm/exynos/exynos_drm_fimc.c
> @@ -720,24 +720,24 @@ static int fimc_src_set_addr(struct device *dev,
>  	case IPP_BUF_ENQUEUE:
>  		config = &property->config[EXYNOS_DRM_OPS_SRC];
>  		fimc_write(ctx, buf_info->base[EXYNOS_DRM_PLANAR_Y],
> -			EXYNOS_CIIYSA(buf_id));
> +			EXYNOS_CIIYSA0);
>  
>  		if (config->fmt == DRM_FORMAT_YVU420) {
>  			fimc_write(ctx, buf_info->base[EXYNOS_DRM_PLANAR_CR],
> -				EXYNOS_CIICBSA(buf_id));
> +				EXYNOS_CIICBSA0);
>  			fimc_write(ctx, buf_info->base[EXYNOS_DRM_PLANAR_CB],
> -				EXYNOS_CIICRSA(buf_id));
> +				EXYNOS_CIICRSA0);
>  		} else {
>  			fimc_write(ctx, buf_info->base[EXYNOS_DRM_PLANAR_CB],
> -				EXYNOS_CIICBSA(buf_id));
> +				EXYNOS_CIICBSA0);
>  			fimc_write(ctx, buf_info->base[EXYNOS_DRM_PLANAR_CR],
> -				EXYNOS_CIICRSA(buf_id));
> +				EXYNOS_CIICRSA0);
>  		}
>  		break;
>  	case IPP_BUF_DEQUEUE:
> -		fimc_write(ctx, 0x0, EXYNOS_CIIYSA(buf_id));
> -		fimc_write(ctx, 0x0, EXYNOS_CIICBSA(buf_id));
> -		fimc_write(ctx, 0x0, EXYNOS_CIICRSA(buf_id));
> +		fimc_write(ctx, 0x0, EXYNOS_CIIYSA0);
> +		fimc_write(ctx, 0x0, EXYNOS_CIICBSA0);
> +		fimc_write(ctx, 0x0, EXYNOS_CIICRSA0);
>  		break;
>  	default:
>  		/* bypass */
> 

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