This is a note to let you know that I've just added the patch titled
usb: dwc3: Fix default mode initialization
to the 5.10-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-dwc3-fix-default-mode-initialization.patch
and it can be found in the queue-5.10 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 10d510abd096d620b9fda2dd3e0047c5efc4ad2b Mon Sep 17 00:00:00 2001
From: Alexander Stein <alexander.stein@xxxxxxxxxxxxxxx>
Date: Wed, 25 Oct 2023 11:51:10 +0200
Subject: usb: dwc3: Fix default mode initialization
From: Alexander Stein <alexander.stein@xxxxxxxxxxxxxxx>
commit 10d510abd096d620b9fda2dd3e0047c5efc4ad2b upstream.
The default mode, configurable by DT, shall be set before usb role switch
driver is registered. Otherwise there is a race between default mode
and mode set by usb role switch driver.
Fixes: 98ed256a4dbad ("usb: dwc3: Add support for role-switch-default-mode binding")
Cc: stable <stable@xxxxxxxxxx>
Signed-off-by: Alexander Stein <alexander.stein@xxxxxxxxxxxxxxx>
Acked-by: Thinh Nguyen <Thinh.Nguyen@xxxxxxxxxxxx>
Link: https://lore.kernel.org/r/20231025095110.2405281-1-alexander.stein@xxxxxxxxxxxxxxx
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/usb/dwc3/drd.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/usb/dwc3/drd.c
+++ b/drivers/usb/dwc3/drd.c
@@ -547,6 +547,7 @@ static int dwc3_setup_role_switch(struct
dwc->role_switch_default_mode = USB_DR_MODE_PERIPHERAL;
mode = DWC3_GCTL_PRTCAP_DEVICE;
}
+ dwc3_set_mode(dwc, mode);
dwc3_role_switch.fwnode = dev_fwnode(dwc->dev);
dwc3_role_switch.set = dwc3_usb_role_switch_set;
@@ -556,7 +557,6 @@ static int dwc3_setup_role_switch(struct
if (IS_ERR(dwc->role_sw))
return PTR_ERR(dwc->role_sw);
- dwc3_set_mode(dwc, mode);
return 0;
}
#else
Patches currently in stable-queue which might be from alexander.stein@xxxxxxxxxxxxxxx are
queue-5.10/usb-dwc3-fix-default-mode-initialization.patch
