diff options
| author | Irui Wang <irui.wang@mediatek.com> | 2021-06-05 05:29:15 +0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab+huawei@kernel.org> | 2021-06-17 11:11:28 +0300 |
| commit | c2c3bde0e1aed4250e7eafb1bc739760c61d10b8 (patch) | |
| tree | fb996d1c0edc6a22d2e4b2fa13061cbc1c903ad0 /drivers/media | |
| parent | 5cd57605771216755bd6f98748d4f11d1e65b780 (diff) | |
| download | linux-c2c3bde0e1aed4250e7eafb1bc739760c61d10b8.tar.xz | |
media: mtk-vcodec: Support 34bits dma address for venc
Use the dma_set_mask_and_coherent helper to set venc
DMA bit mask to support 34bits iova space(16GB) that
the mt8192 iommu HW support.
Whole the iova range separate to 0~4G/4G~8G/8G~12G/12G~16G,
regarding which iova range VENC actually locate, it
depends on the dma-ranges property of venc dtsi node.
Signed-off-by: Irui Wang <irui.wang@mediatek.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Diffstat (limited to 'drivers/media')
| -rw-r--r-- | drivers/media/platform/mtk-vcodec/mtk_vcodec_enc_drv.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/media/platform/mtk-vcodec/mtk_vcodec_enc_drv.c b/drivers/media/platform/mtk-vcodec/mtk_vcodec_enc_drv.c index 7d7b8cfc2cc5..26b089e81213 100644 --- a/drivers/media/platform/mtk-vcodec/mtk_vcodec_enc_drv.c +++ b/drivers/media/platform/mtk-vcodec/mtk_vcodec_enc_drv.c @@ -361,6 +361,9 @@ 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"); |