Commit 6491c05b authored by Yunfei Dong's avatar Yunfei Dong Committed by Mauro Carvalho Chehab
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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: default avatarYunfei Dong <yunfei.dong@mediatek.com>
Reviewed-by: default avatarAngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Signed-off-by: default avatarHans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: default avatarMauro Carvalho Chehab <mchehab@kernel.org>
parent 365e4ba0

drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_drv.c

+8 −0
Original line number Diff line number Diff line
@@ -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);