From: Tomi Valkeinen Date: Wed, 15 Jan 2025 09:03:39 +0000 (+0200) Subject: drm: xlnx: zynqmp: Fix max dma segment size X-Git-Tag: v6.1.134~175 X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=f3ce74cdeed0cbf6c6125961b8c30a454171259d;p=thirdparty%2Fkernel%2Fstable.git drm: xlnx: zynqmp: Fix max dma segment size [ 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 Tested-by: Sean Anderson Signed-off-by: Tomi Valkeinen Link: https://patchwork.freedesktop.org/patch/msgid/20250115-xilinx-formats-v2-10-160327ca652a@ideasonboard.com Signed-off-by: Sasha Levin --- diff --git a/drivers/gpu/drm/xlnx/zynqmp_dpsub.c b/drivers/gpu/drm/xlnx/zynqmp_dpsub.c index fcaa958d841c9..f34d4ec1d92f3 100644 --- a/drivers/gpu/drm/xlnx/zynqmp_dpsub.c +++ b/drivers/gpu/drm/xlnx/zynqmp_dpsub.c @@ -205,6 +205,8 @@ 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);