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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>
This commit is contained in:
Yunfei Dong 2022-01-13 05:10:51 +01:00 committed by Mauro Carvalho Chehab
parent 365e4ba01d
commit 6491c05bda
1 changed files with 8 additions and 0 deletions
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8
drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_drv.c
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@ -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);