diff mbox series

[v7,10/14] media: mtk-jpegdec: Remove the setting for dma_mask

Message ID 20230411093144.2690-11-yong.wu@mediatek.com (mailing list archive)
State Superseded
Delegated to: Hans Verkuil
Headers
Series Adjust the dma-ranges for MTK IOMMU |

Commit Message

Yong Wu (吴勇) April 11, 2023, 9:31 a.m. UTC 
  In order to simplify the masters to set their respective dma masks, MTK
IOMMU helps to centralize the processing. Because all the dma ranges is
set in IOMMU, IOMMU knows well the dma mask requirements of masters. After
this patch, the masters code does not need care
dma-ranges/dma_mask related information.

Cc: Bin Liu <bin.liu@mediatek.com>
Cc: Mauro Carvalho Chehab <mchehab@kernel.org>
Cc: kyrie wu <kyrie.wu@mediatek.com>
Signed-off-by: Yong Wu <yong.wu@mediatek.com>
---
 drivers/media/platform/mediatek/jpeg/mtk_jpeg_core.c | 3 ---
 1 file changed, 3 deletions(-)

Comments

AngeloGioacchino Del Regno April 11, 2023, 10:12 a.m. UTC | #1 
Il 11/04/23 11:31, Yong Wu ha scritto:
> In order to simplify the masters to set their respective dma masks, MTK
> IOMMU helps to centralize the processing. Because all the dma ranges is
> set in IOMMU, IOMMU knows well the dma mask requirements of masters. After
> this patch, the masters code does not need care
> dma-ranges/dma_mask related information.
> 
> Cc: Bin Liu <bin.liu@mediatek.com>
> Cc: Mauro Carvalho Chehab <mchehab@kernel.org>
> Cc: kyrie wu <kyrie.wu@mediatek.com>
> Signed-off-by: Yong Wu <yong.wu@mediatek.com>

Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Hans Verkuil April 12, 2023, 2:34 p.m. UTC | #2 
On 11/04/2023 11:31, Yong Wu wrote:
> In order to simplify the masters to set their respective dma masks, MTK
> IOMMU helps to centralize the processing. Because all the dma ranges is
> set in IOMMU, IOMMU knows well the dma mask requirements of masters. After
> this patch, the masters code does not need care
> dma-ranges/dma_mask related information.
> 
> Cc: Bin Liu <bin.liu@mediatek.com>
> Cc: Mauro Carvalho Chehab <mchehab@kernel.org>
> Cc: kyrie wu <kyrie.wu@mediatek.com>
> Signed-off-by: Yong Wu <yong.wu@mediatek.com>

Acked-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>

Regards,

	Hans

> ---
>  drivers/media/platform/mediatek/jpeg/mtk_jpeg_core.c | 3 ---
>  1 file changed, 3 deletions(-)
> 
> diff --git a/drivers/media/platform/mediatek/jpeg/mtk_jpeg_core.c b/drivers/media/platform/mediatek/jpeg/mtk_jpeg_core.c
> index 969516a940ba..9b96d2436311 100644
> --- a/drivers/media/platform/mediatek/jpeg/mtk_jpeg_core.c
> +++ b/drivers/media/platform/mediatek/jpeg/mtk_jpeg_core.c
> @@ -1757,9 +1757,6 @@ static int mtk_jpeg_probe(struct platform_device *pdev)
>  	jpeg->vdev->device_caps = V4L2_CAP_STREAMING |
>  				  V4L2_CAP_VIDEO_M2M_MPLANE;
>  
> -	if (of_get_property(pdev->dev.of_node, "dma-ranges", NULL))
> -		dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(34));
> -
>  	ret = video_register_device(jpeg->vdev, VFL_TYPE_VIDEO, -1);
>  	if (ret) {
>  		v4l2_err(&jpeg->v4l2_dev, "Failed to register video device\n");
diff mbox series

Patch

diff --git a/drivers/media/platform/mediatek/jpeg/mtk_jpeg_core.c b/drivers/media/platform/mediatek/jpeg/mtk_jpeg_core.c
index 969516a940ba..9b96d2436311 100644
--- a/drivers/media/platform/mediatek/jpeg/mtk_jpeg_core.c
+++ b/drivers/media/platform/mediatek/jpeg/mtk_jpeg_core.c
@@ -1757,9 +1757,6 @@  static int mtk_jpeg_probe(struct platform_device *pdev)
 	jpeg->vdev->device_caps = V4L2_CAP_STREAMING |
 				  V4L2_CAP_VIDEO_M2M_MPLANE;
 
-	if (of_get_property(pdev->dev.of_node, "dma-ranges", NULL))
-		dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(34));
-
 	ret = video_register_device(jpeg->vdev, VFL_TYPE_VIDEO, -1);
 	if (ret) {
 		v4l2_err(&jpeg->v4l2_dev, "Failed to register video device\n");