From: Francois Buergisser <fbuergisser@chromium.org>
Date: Thu, 25 Jul 2019 14:17:50 +0000 (-0400)
Subject: media: hantro: Set DMA max segment size
X-Git-Tag: v5.15~5520^2~204
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=c3c3509b86810293df5c524ef61421d8affc8bf0;p=platform%2Fkernel%2Flinux-starfive.git

media: hantro: Set DMA max segment size

The Hantro codec is typically used in platforms with an IOMMU,
so we need to set a proper DMA segment size. Devices without an
IOMMU will still fallback to default 64KiB segments.

Cc: stable@vger.kernel.org
Fixes: 775fec69008d3 ("media: add Rockchip VPU JPEG encoder driver")
Signed-off-by: Francois Buergisser <fbuergisser@chromium.org>
Signed-off-by: Ezequiel Garcia <ezequiel@collabora.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
---

diff --git a/drivers/staging/media/hantro/hantro_drv.c b/drivers/staging/media/hantro/hantro_drv.c
index b71a06e..4eae1db 100644
--- a/drivers/staging/media/hantro/hantro_drv.c
+++ b/drivers/staging/media/hantro/hantro_drv.c
@@ -731,6 +731,7 @@ static int hantro_probe(struct platform_device *pdev)
 		dev_err(vpu->dev, "Could not set DMA coherent mask.\n");
 		return ret;
 	}
+	vb2_dma_contig_set_max_seg_size(&pdev->dev, DMA_BIT_MASK(32));
 
 	for (i = 0; i < vpu->variant->num_irqs; i++) {
 		const char *irq_name = vpu->variant->irqs[i].name;