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From:   Irui Wang <irui.wang@mediatek.com>
To:     Alexandre Courbot <acourbot@chromium.org>,
        Hans Verkuil <hverkuil-cisco@xs4all.nl>,
        Andrew-CT Chen <andrew-ct.chen@mediatek.com>,
        Mauro Carvalho Chehab <mchehab@kernel.org>,
        Rob Herring <robh+dt@kernel.org>,
        Matthias Brugger <matthias.bgg@gmail.com>
CC:     Tiffany Lin <tiffany.lin@mediatek.com>,
        Fritz Koenig <frkoenig@chromium.org>,
        Tzung-Bi Shih <tzungbi@chromium.org>,
        Maoguang Meng <maoguang.meng@mediatek.com>,
        Longfei Wang <longfei.wang@mediatek.com>,
        Yunfei Dong <yunfei.dong@mediatek.com>,
        Irui Wang <irui.wang@mediatek.com>, <yong.wu@mediatek.com>,
        <linux-media@vger.kernel.org>, <devicetree@vger.kernel.org>,
        <linux-kernel@vger.kernel.org>,
        <linux-arm-kernel@lists.infradead.org>,
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Subject: [PATCH v3,3/6] media: mtk-vcodec: Support 4GB~8GB range iova space for venc
Date:   Mon, 12 Apr 2021 20:45:52 +0800
Message-ID: <20210412124555.26897-4-irui.wang@mediatek.com>
In-Reply-To: <20210412124555.26897-1-irui.wang@mediatek.com>
References: <20210412124555.26897-1-irui.wang@mediatek.com>
MIME-Version: 1.0
Content-Type: text/plain
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Use 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 <irui.wang@mediatek.com>
---
 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 7d7b8cfc2cc5..26b089e81213 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