linux-kernel - [V2,2/2] media: media: jpegenc: set bit mask for jpegenc

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Date:   Wed, 8 Jun 2022 14:07:55 +0800
From:   Irui Wang <irui.wang@...iatek.com>
To:     Hans Verkuil <hverkuil-cisco@...all.nl>,
        Mauro Carvalho Chehab <mchehab@...nel.org>,
        Rob Herring <robh+dt@...nel.org>,
        Matthias Brugger <matthias.bgg@...il.com>,
        Tzung-Bi Shih <tzungbi@...omium.org>
CC:     <Project_Global_Chrome_Upstream_Group@...iatek.com>,
        <linux-media@...r.kernel.org>, <devicetree@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>,
        <linux-arm-kernel@...ts.infradead.org>,
        <linux-mediatek@...ts.infradead.org>,
        Tomasz Figa <tfiga@...omium.org>, <xia.jiang@...iatek.com>,
        <maoguang.meng@...iatek.com>, kyrie wu <kyrie.wu@...iatek.com>,
        <srv_heupstream@...iatek.com>
Subject: [V2,2/2] media: media: jpegenc: set bit mask for jpegenc

From: kyrie wu <kyrie.wu@...iatek.com>

set jpeg encode DMA bit mask to support 34bits
iova space(16GB) that the mt8186 iommu HW support.
Whole the iova range separate to 0~4G/4G~8G/8G~12G/12G~16G,
regarding which iova range jpgenc actually locate, it
depends on the dma-ranges property of vdec dtsi node.

Signed-off-by: kyrie wu <kyrie.wu@...iatek.com>
---
 drivers/media/platform/mediatek/jpeg/mtk_jpeg_core.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/media/platform/mediatek/jpeg/mtk_jpeg_core.c b/drivers/media/platform/mediatek/jpeg/mtk_jpeg_core.c
index bc5b0a0168ec..87685a62a5c2 100644
--- a/drivers/media/platform/mediatek/jpeg/mtk_jpeg_core.c
+++ b/drivers/media/platform/mediatek/jpeg/mtk_jpeg_core.c
@@ -1369,6 +1369,9 @@ static int mtk_jpeg_probe(struct platform_device *pdev)
 	jpeg->vdev->device_caps = V4L2_CAP_STREAMING |
 				  V4L2_CAP_VIDEO_M2M_MPLANE;
 
+	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(jpeg->vdev, VFL_TYPE_VIDEO, -1);
 	if (ret) {
 		v4l2_err(&jpeg->v4l2_dev, "Failed to register video device\n");
-- 
2.18.0