[PATCH 10/10] drm: xlnx: zynqmp: Fix max dma segment size

From: Tomi Valkeinen
Date: Wed Dec 04 2024 - 04:36:18 EST


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

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@xxxxxxxxxxxxxxxx>
---
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 f5781939de9c..a25b22238e3d 100644
--- a/drivers/gpu/drm/xlnx/zynqmp_dpsub.c
+++ b/drivers/gpu/drm/xlnx/zynqmp_dpsub.c
@@ -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);


--
2.43.0