From: Ricardo Ribalda <ribalda@chromium.org>
Date: Wed, 19 Jul 2023 13:01:04 +0000 (+0000)
Subject: usb: xhci-mtk: set the dma max_seg_size
X-Git-Tag: v6.5-rc4~3^2~15
X-Git-Url: https://git.kernel.dk/?a=commitdiff_plain;h=9fd10829a9eb482e192a845675ecc5480e0bfa10;p=linux-block.git

usb: xhci-mtk: set the dma max_seg_size

Allow devices to have dma operations beyond 64K, and avoid warnings such
as:

DMA-API: xhci-mtk 11200000.usb: mapping sg segment longer than device claims to support [len=98304] [max=65536]

Fixes: 0cbd4b34cda9 ("xhci: mediatek: support MTK xHCI host controller")
Cc: stable <stable@kernel.org>
Tested-by: Zubin Mithra <zsm@chromium.org>
Reported-by: Zubin Mithra <zsm@chromium.org>
Signed-off-by: Ricardo Ribalda <ribalda@chromium.org>
Link: https://lore.kernel.org/r/20230628-mtk-usb-v2-1-c8c34eb9f229@chromium.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---

diff --git a/drivers/usb/host/xhci-mtk.c b/drivers/usb/host/xhci-mtk.c
index 51d9d4d4f6a5..bbdf1b0b7be1 100644
--- a/drivers/usb/host/xhci-mtk.c
+++ b/drivers/usb/host/xhci-mtk.c
@@ -586,6 +586,7 @@ static int xhci_mtk_probe(struct platform_device *pdev)
 	}
 
 	device_init_wakeup(dev, true);
+	dma_set_max_seg_size(dev, UINT_MAX);
 
 	xhci = hcd_to_xhci(hcd);
 	xhci->main_hcd = hcd;