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usb: dwc3: set the dma max_seg_size
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commit 8bbae288a85abed6a1cf7d185d8b9dc2f5dcb12c upstream.

Allow devices to have dma operations beyond 4K, and avoid warnings such
as:

DMA-API: dwc3 a600000.usb: mapping sg segment longer than device claims to support [len=86016] [max=65536]

Cc: stable@vger.kernel.org
Fixes: 72246da ("usb: Introduce DesignWare USB3 DRD Driver")
Reported-by: Zubin Mithra <zsm@chromium.org>
Signed-off-by: Ricardo Ribalda <ribalda@chromium.org>
Acked-by: Thinh Nguyen <Thinh.Nguyen@synopsys.com>
Link: https://lore.kernel.org/r/20231026-dwc3-v2-1-1d4fd5c3e067@chromium.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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ribalda authored and mylove90 committed Feb 12, 2024
1 parent f630219 commit eca1440
Showing 1 changed file with 1 addition and 0 deletions.
1 change: 1 addition & 0 deletions drivers/usb/dwc3/core.c
Original file line number Diff line number Diff line change
Expand Up @@ -1482,6 +1482,7 @@ static int dwc3_probe(struct platform_device *pdev)

pm_runtime_allow(dev);
dwc3_debugfs_init(dwc);
dma_set_max_seg_size(dev, UINT_MAX);
return 0;

err3:
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