linux-kernel - [PATCH 1/2] media: mediatek: vcodec: Remove decoder 'dma-ranges' conditon when set dma mask

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Message-ID: <20230323083810.21912-1-yunfei.dong@mediatek.com>
Date:   Thu, 23 Mar 2023 16:38:09 +0800
From:   Yunfei Dong <yunfei.dong@...iatek.com>
To:     Yunfei Dong <yunfei.dong@...iatek.com>,
        Chen-Yu Tsai <wenst@...omium.org>,
        Yong Wu <yong.wu@...iatek.org>,
        Nicolas Dufresne <nicolas@...fresne.ca>,
        Hans Verkuil <hverkuil-cisco@...all.nl>,
        AngeloGioacchino Del Regno 
        <angelogioacchino.delregno@...labora.com>,
        Benjamin Gaignard <benjamin.gaignard@...labora.com>,
        Nícolas F . R . A . Prado 
        <nfraprado@...labora.com>
CC:     Matthias Brugger <matthias.bgg@...il.com>,
        Hsin-Yi Wang <hsinyi@...omium.org>,
        Fritz Koenig <frkoenig@...omium.org>,
        Daniel Vetter <daniel@...ll.ch>,
        Steve Cho <stevecho@...omium.org>,
        <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>,
        <Project_Global_Chrome_Upstream_Group@...iatek.com>
Subject: [PATCH 1/2] media: mediatek: vcodec: Remove decoder 'dma-ranges' conditon when set dma mask

After commit f1ad5338a4d5("of: Fix "dma-ranges" handling for bus controllers"),
the dma-ranges is not allowed in decoder dts node. But the driver still need
to set dma mask, remove "dma-ranges" condition in prob function.

Signed-off-by: Yunfei Dong <yunfei.dong@...iatek.com>
---
Reference series:
[1]: v5 of this series is present by Yong Wu.
     20230307023507.13306-1-yong.wu@...iatek.com
---
 .../mediatek/vcodec/mtk_vcodec_dec_drv.c      | 24 +++++++++++++------
 1 file changed, 17 insertions(+), 7 deletions(-)

diff --git a/drivers/media/platform/mediatek/vcodec/mtk_vcodec_dec_drv.c b/drivers/media/platform/mediatek/vcodec/mtk_vcodec_dec_drv.c
index bba7b932f4fa..2c3a4c2cdaee 100644
--- a/drivers/media/platform/mediatek/vcodec/mtk_vcodec_dec_drv.c
+++ b/drivers/media/platform/mediatek/vcodec/mtk_vcodec_dec_drv.c
@@ -137,6 +137,20 @@ static int mtk_vcodec_init_dec_resources(struct mtk_vcodec_dev *dev)
 	return 0;
 }
 
+static int mtk_vcodec_dec_set_dma_mask(struct device *dev)
+{
+	int ret = 0;
+
+	return !(of_device_is_compatible(dev->of_node, "mediatek,mt8173-vcodec-dec") ||
+	       of_device_is_compatible(dev->of_node, "mediatek,mt8183-vcodec-dec"));
+
+	ret = dma_set_mask_and_coherent(dev, DMA_BIT_MASK(34));
+	if (ret)
+		mtk_v4l2_err("Failed to set dec mask");
+
+	return ret;
+}
+
 static int fops_vcodec_open(struct file *file)
 {
 	struct mtk_vcodec_dev *dev = video_drvdata(file);
@@ -323,13 +337,9 @@ 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;
-		}
-	}
+	ret = mtk_vcodec_dec_set_dma_mask(&pdev->dev);
+	if (ret)
+		goto err_core_workq;
 
 	for (i = 0; i < MTK_VDEC_HW_MAX; i++)
 		mutex_init(&dev->dec_mutex[i]);
-- 
2.18.0