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authorRicardo Ribalda <ribalda@chromium.org>2023-07-19 13:01:04 +0000
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2023-08-11 11:53:51 +0200
commite0c92c32913182fa550a6e5d628c8ff0080598e6 (patch)
treee43ffd274e55cd1e2a7a9ae0b7b5274dbc3df265
parent3f39d58a0c1a957585a53caff4520cebf7122e0d (diff)
usb: xhci-mtk: set the dma max_seg_size
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: 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>
-rw-r--r--drivers/usb/host/xhci-mtk.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/usb/host/xhci-mtk.c b/drivers/usb/host/xhci-mtk.c
index 5c0eb35cd007..c56c6a0d6222 100644
--- a/drivers/usb/host/xhci-mtk.c
+++ b/drivers/usb/host/xhci-mtk.c
@@ -540,6 +540,7 @@ 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;