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usb: xhci-mtk: set the dma max_seg_size

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commit 9fd10829a9eb482e192a845675ecc5480e0bfa10 upstream.

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: 0cbd4b34cd ("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>
This commit is contained in:
Ricardo Ribalda 2023-07-19 13:01:04 +00:00 committed by Greg Kroah-Hartman
parent 3f39d58a0c
commit e0c92c3291
1 changed files with 1 additions and 0 deletions
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drivers/usb/host/xhci-mtk.c
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@ -540,6 +540,7 @@ static int xhci_mtk_probe(struct platform_device *pdev)
} }
device_init_wakeup(dev, true); device_init_wakeup(dev, true);
dma_set_max_seg_size(dev, UINT_MAX);
xhci = hcd_to_xhci(hcd); xhci = hcd_to_xhci(hcd);
xhci->main_hcd = hcd; xhci->main_hcd = hcd;