diff options
| author | Yunfei Dong <yunfei.dong@mediatek.com> | 2022-01-13 05:10:51 +0100 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@kernel.org> | 2022-01-23 21:18:45 +0100 |
| commit | 6491c05bda74e1c8651664f0f17ad9a5d1715357 (patch) | |
| tree | 0b189e26713eaa824be23ba454ff791737b23c50 | |
| parent | 365e4ba01df4b297cb92f30f078ddaf2e62bf15c (diff) | |
media: mtk-vcodec: Support 34bits dma address for vdec
Use the dma_set_mask_and_coherent helper to set vdec
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 VDEC actually locate, it
depends on the dma-ranges property of vdec dtsi node.
Signed-off-by: Yunfei Dong <yunfei.dong@mediatek.com>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
| -rw-r--r-- | drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_drv.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_drv.c b/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_drv.c index 1b67ed8f7f52..08d8e02559c6 100644 --- a/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_drv.c +++ b/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_drv.c @@ -323,6 +323,14 @@ 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); |