5.15-stable review patch. If anyone has any objections, please let me know.
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From: Tomi Valkeinen tomi.valkeinen@ideasonboard.com
[ Upstream commit 28b529a98525123acd37372a04d21e87ec2edcf7 ]
Fix "mapping sg segment longer than device claims to support" warning by setting the max segment size.
Fixes: d76271d22694 ("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-... Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/gpu/drm/xlnx/zynqmp_dpsub.c | 2 ++ 1 file changed, 2 insertions(+)
diff --git a/drivers/gpu/drm/xlnx/zynqmp_dpsub.c b/drivers/gpu/drm/xlnx/zynqmp_dpsub.c index 5bb42d0a2de98..78b7dd210d89c 100644 --- a/drivers/gpu/drm/xlnx/zynqmp_dpsub.c +++ b/drivers/gpu/drm/xlnx/zynqmp_dpsub.c @@ -204,6 +204,8 @@ 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);