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| Filename | Latest commit message | Latest commit date |
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5a23897f7a
[ Upstream commit 9f9113925018d500a95df539014d9ff11ac2c02d ]
With CONFIG_DEBUG_ATOMIC_SLEEP enabled we can see the following with
wakeirqs and serial console idled:
BUG: sleeping function called from invalid context at drivers/bus/ti-sysc.c:242
...
(sysc_wait_softreset) from [<c0606894>] (sysc_enable_module+0x48/0x274)
(sysc_enable_module) from [<c0606c5c>] (sysc_runtime_resume+0x19c/0x1d8)
(sysc_runtime_resume) from [<c0606cf0>] (sysc_child_runtime_resume+0x58/0x84)
(sysc_child_runtime_resume) from [<c06eb7bc>] (__rpm_callback+0x30/0x12c)
(__rpm_callback) from [<c06eb8d8>] (rpm_callback+0x20/0x80)
(rpm_callback) from [<c06eb434>] (rpm_resume+0x638/0x7fc)
(rpm_resume) from [<c06eb658>] (__pm_runtime_resume+0x60/0x9c)
(__pm_runtime_resume) from [<c06edc08>] (handle_threaded_wake_irq+0x24/0x60)
(handle_threaded_wake_irq) from [<c01befec>] (irq_thread_fn+0x1c/0x78)
(irq_thread_fn) from [<c01bf30c>] (irq_thread+0x140/0x26c)
We have __pm_runtime_resume() call the sysc_runtime_resume() with spinlock
held and interrupts disabled.
Fixes: d46f9fbec719 ("bus: ti-sysc: Use optional clocks on for enable and wait for softreset bit")
Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.