From: Ricardo Ribalda <ribalda@chromium.org>
Date: Fri, 27 Oct 2023 11:28:20 +0000 (+0000)
Subject: usb: dwc3: set the dma max_seg_size
X-Git-Tag: v6.6.7~385
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=6506e0228d3712881b3c405245c29d43d94356f1;p=platform%2Fkernel%2Flinux-starfive.git

usb: dwc3: set the dma max_seg_size

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: 72246da40f37 ("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>
---

diff --git a/drivers/usb/dwc3/core.c b/drivers/usb/dwc3/core.c
index d2549096..8d5af9c 100644
--- a/drivers/usb/dwc3/core.c
+++ b/drivers/usb/dwc3/core.c
@@ -2006,6 +2006,8 @@ static int dwc3_probe(struct platform_device *pdev)
 
 	pm_runtime_put(dev);
 
+	dma_set_max_seg_size(dev, UINT_MAX);
+
 	return 0;
 
 err_exit_debugfs: