This is a note to let you know that I've just added the patch titled
usb: host: xhci-plat: Add support for XHCI_SG_TRB_CACHE_SIZE_QUIRK
to the 5.15-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
usb-host-xhci-plat-add-support-for-xhci_sg_trb_cache_size_quirk.patch
and it can be found in the queue-5.15 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 520b391e3e813c1dd142d1eebb3ccfa6d08c3995 Mon Sep 17 00:00:00 2001
From: Prashanth K <quic_prashk@xxxxxxxxxxx>
Date: Tue, 16 Jan 2024 11:28:16 +0530
Subject: usb: host: xhci-plat: Add support for XHCI_SG_TRB_CACHE_SIZE_QUIRK
From: Prashanth K <quic_prashk@xxxxxxxxxxx>
commit 520b391e3e813c1dd142d1eebb3ccfa6d08c3995 upstream.
Upstream commit bac1ec551434 ("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@xxxxxxxxxxxxxxx # 5.11
Fixes: bac1ec551434 ("usb: xhci: Set quirk for XHCI_SG_TRB_CACHE_SIZE_QUIRK")
Signed-off-by: Prashanth K <quic_prashk@xxxxxxxxxxx>
Link: https://lore.kernel.org/r/20240116055816.1169821-3-quic_prashk@xxxxxxxxxxx
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/usb/host/xhci-plat.c | 3 +++
1 file changed, 3 insertions(+)
--- a/drivers/usb/host/xhci-plat.c
+++ b/drivers/usb/host/xhci-plat.c
@@ -323,6 +323,9 @@ static int xhci_plat_probe(struct platfo
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);
}
Patches currently in stable-queue which might be from quic_prashk@xxxxxxxxxxx are
queue-5.15/usb-host-xhci-plat-add-support-for-xhci_sg_trb_cache_size_quirk.patch
queue-5.15/usb-dwc3-host-set-xhci_sg_trb_cache_size_quirk.patch
