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FROMGIT: usb: host: xhci-plat: Add support for XHCI_SG_TRB_CACHE_SIZE_QUIRK

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Upstream commit bac1ec5514 ("usb: xhci: Set quirk for
XHCI_SG_TRB_CACHE_SIZE_QUIRK") introduced a new quirk in XHCI
which fixes XHC timeout, which was seen on synopsys XHCs while
using SG buffers. Currently this quirk can only be set using
xhci private data. But there are some drivers like dwc3/host.c
which adds adds quirks using software node for xhci device.
Hence set this xhci quirk by iterating over device properties.

Cc: stable@vger.kernel.org # 5.11
Fixes: bac1ec5514 ("usb: xhci: Set quirk for XHCI_SG_TRB_CACHE_SIZE_QUIRK")
Signed-off-by: Prashanth K <quic_prashk@quicinc.com>
Link: https://lore.kernel.org/r/20240116055816.1169821-3-quic_prashk@quicinc.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Bug: 322910830
(cherry picked from commit 520b391e3e813c1dd142d1eebb3ccfa6d08c3995
https: //git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git/ usb-linus)
Signed-off-by: Prashanth K <quic_prashk@quicinc.com>
Change-Id: I7cc21f5975cd82997f8eca38472f9c467df21dd6
This commit is contained in:
Prashanth K 2024-01-16 11:28:16 +05:30
parent ef39f76e4d
commit 89e4f7a7a3
1 changed files with 3 additions and 0 deletions
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3
drivers/usb/host/xhci-plat.c
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@ -336,6 +336,9 @@ static int xhci_plat_probe(struct platform_device *pdev)
if (device_property_read_bool(tmpdev, "quirk-broken-port-ped"))
xhci->quirks |= XHCI_BROKEN_PORT_PED;
if (device_property_read_bool(tmpdev, "xhci-sg-trb-cache-size-quirk"))
xhci->quirks |= XHCI_SG_TRB_CACHE_SIZE_QUIRK;
device_property_read_u32(tmpdev, "imod-interval-ns",
&xhci->imod_interval);
}