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authorYong Wu <yong.wu@mediatek.com>2023-04-11 11:31:40 +0200
committerJoerg Roedel <jroedel@suse.de>2023-04-13 11:59:27 +0200
commit7d35584d9c6d2a78d8ab95450fafec40620ddf19 (patch)
tree5c27dff7f7a187f7df0e80cea6df94a569a8d2ba /drivers/media
parentiommu/mediatek: Set dma_mask for the master devices (diff)
downloadlinux-7d35584d9c6d2a78d8ab95450fafec40620ddf19.tar.xz
linux-7d35584d9c6d2a78d8ab95450fafec40620ddf19.zip
media: mtk-jpegdec: 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 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> Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com> Link: https://lore.kernel.org/r/20230411093144.2690-11-yong.wu@mediatek.com Signed-off-by: Joerg Roedel <jroedel@suse.de>
Diffstat (limited to 'drivers/media')
-rw-r--r--drivers/media/platform/mediatek/jpeg/mtk_jpeg_core.c3
1 files changed, 0 insertions, 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");