From: bugzilla-daemon@kernel.org
To: linux-usb@vger.kernel.org
Subject: [Bug 215799] New: apple-mfi-fastcharge causes automatic pm hibernation entry, when iPhone gets attached
Date: Mon, 04 Apr 2022 22:22:15 +0000 [thread overview]
Message-ID: <bug-215799-208809@https.bugzilla.kernel.org/> (raw)
https://bugzilla.kernel.org/show_bug.cgi?id=215799
Bug ID: 215799
Summary: apple-mfi-fastcharge causes automatic pm hibernation
entry, when iPhone gets attached
Product: Drivers
Version: 2.5
Kernel Version: 5.17.1
Hardware: All
OS: Linux
Tree: Mainline
Status: NEW
Severity: normal
Priority: P1
Component: USB
Assignee: drivers_usb@kernel-bugs.kernel.org
Reporter: labre@posteo.de
Regression: No
Created attachment 300695
--> https://bugzilla.kernel.org/attachment.cgi?id=300695&action=edit
dmesg log during a boot with an iPhone attached
=======================
Summary
=======================
If I attach an iPhone SE while the apple-mfi-fastcharge module is not
blacklisted, the kernel will immediately hibernate. Loading the module without
an attached iPhone does not have this effect. dmesg is not very helpful in this
case, probably I need a higher debug level. I’ll attach it anyway with some
context.
=======================
Steps to reproduce
=======================
1. Attach an iPhone SE (don’t have any others) via USB-A to Lightning cable
while apple-mfi-fastcharge is either builtin, loaded, or can be loaded
automatically, i.e. is not blacklisted.
=======================
Actual behaviour
=======================
The kernel automatically hibernates without user interaction.
=======================
Expected behaviour
=======================
The kernel continues normal operation.
=======================
Additional information
=======================
The cable has μUSB→Lightning and μUSB→USB C adapters attached. It works fine
with an Android phone and with the iPhone SE without the apple-mfi-fastcharge
module loaded, so it is not faulty.
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next reply other threads:[~2022-04-04 23:02 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-04-04 22:22 bugzilla-daemon [this message]
2022-04-04 22:23 ` [Bug 215799] apple-mfi-fastcharge causes automatic pm hibernation entry, when iPhone gets attached bugzilla-daemon
2022-04-05 8:26 ` bugzilla-daemon
2022-04-05 9:42 ` bugzilla-daemon
2022-04-06 1:56 ` bugzilla-daemon
2022-04-06 8:47 ` bugzilla-daemon
2022-04-06 20:17 ` bugzilla-daemon
2022-04-07 11:13 ` bugzilla-daemon
2022-04-07 18:09 ` bugzilla-daemon
2022-04-07 21:03 ` bugzilla-daemon
2022-04-07 22:10 ` bugzilla-daemon
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