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drm: xlnx: zynqmp: Fix max dma segment size

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[ Upstream commit 28b529a985 ]

Fix "mapping sg segment longer than device claims to support" warning by
setting the max segment size.

Fixes: d76271d226 ("drm: xlnx: DRM/KMS driver for Xilinx ZynqMP DisplayPort Subsystem")
Reviewed-by: Sean Anderson <sean.anderson@linux.dev>
Tested-by: Sean Anderson <sean.anderson@linux.dev>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20250115-xilinx-formats-v2-10-160327ca652a@ideasonboard.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Tomi Valkeinen
2025-01-15 11:03:39 +02:00
committed by Greg Kroah-Hartman
parent d360c02cde
commit e2b3107173
1 changed files with 2 additions and 0 deletions
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drivers/gpu/drm/xlnx/zynqmp_dpsub.c
+2
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@@ -231,6 +231,8 @@ static int zynqmp_dpsub_probe(struct platform_device *pdev)
if (ret)
return ret;
dma_set_max_seg_size(&pdev->dev, DMA_BIT_MASK(32));
/* Try the reserved memory. Proceed if there's none. */
of_reserved_mem_device_init(&pdev->dev);