2021-02-03 08:41:33

by Irui Wang (王瑞)

[permalink] [raw]
Subject: [PATCH 2/5] media: mtk-vcodec: Support 4GB~8GB range iova space for venc

Uses the dma_set_mask_and_coherent helper to set venc
DMA bit mask to support 4GB~8GB range iova space.

Signed-off-by: Irui Wang <[email protected]>
---
drivers/media/platform/mtk-vcodec/mtk_vcodec_enc_drv.c | 3 +++
1 file changed, 3 insertions(+)

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 4bee42454253..e8552673bbc7 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");
--
2.25.1