[PATCH 2/5] media: mtk-vcodec: Support 4GB~8GB range iova space for venc
From: Irui Wang <hidden>
Date: 2021-02-03 08:39:17
Also in:
linux-arm-kernel, linux-media, linux-mediatek, lkml
Subsystem:
media input infrastructure (v4l/dvb), the rest · Maintainers:
Mauro Carvalho Chehab, Linus Torvalds
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 <redacted> --- 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