media: mediatek: vcodec: Remove the setting for dma_mask

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(codec here) code does not need care
dma-ranges/dma_mask related information.

Cc: Tiffany Lin <tiffany.lin@mediatek.com>
Cc: Andrew-CT Chen <andrew-ct.chen@mediatek.com>
Cc: Yunfei Dong <yunfei.dong@mediatek.com>
Cc: Mauro Carvalho Chehab <mchehab@kernel.org>
Cc: irui wang <irui.wang@mediatek.com>
Signed-off-by: Yong Wu <yong.wu@mediatek.com>
Acked-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Link: https://lore.kernel.org/r/20230411093144.2690-12-yong.wu@mediatek.com
Signed-off-by: Joerg Roedel <jroedel@suse.de>

drivers/media/platform/mediatek/vcodec/mtk_vcodec_dec_drv.c

@@ -321,14 +321,6 @@ static int mtk_vcodec_probe(struct platform_device *pdev)
 		}
 	}
 
-	if (of_get_property(pdev->dev.of_node, "dma-ranges", NULL)) {
-		ret = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(34));
-		if (ret) {
-			mtk_v4l2_err("Failed to set mask");
-			goto err_core_workq;
-		}
-	}
-
 	for (i = 0; i < MTK_VDEC_HW_MAX; i++)
 		mutex_init(&dev->dec_mutex[i]);
 	mutex_init(&dev->dev_mutex);

drivers/media/platform/mediatek/vcodec/mtk_vcodec_enc_drv.c

@@ -344,9 +344,6 @@ static int mtk_vcodec_probe(struct platform_device *pdev)
 		goto err_event_workq;
 	}
 
-	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(vfd_enc, VFL_TYPE_VIDEO, -1);
 	if (ret) {
 		mtk_v4l2_err("Failed to register video device");