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25bdae0f1c
Mark the SCLK clock for Exynos5433 I2S1 device with IGNORE_UNUSED flag to
match its behaviour with SCLK clock for AUD_I2S (I2S0) device until
a proper fix for Exynos I2S driver is ready.
This fixes the following synchronous abort issue revealed by the probe
order change caused by the commit 93d2e4322a ("of: platform: Batch
fwnode parsing when adding all top level devices")
Internal error: synchronous external abort: 96000210 [#1] PREEMPT SMP
Modules linked in:
CPU: 0 PID: 50 Comm: kworker/0:1 Not tainted 5.7.0-rc5+ #701
Hardware name: Samsung TM2E board (DT)
Workqueue: events deferred_probe_work_func
pstate: 60000005 (nZCv daif -PAN -UAO)
pc : samsung_i2s_probe+0x768/0x8f0
lr : samsung_i2s_probe+0x688/0x8f0
...
Call trace:
samsung_i2s_probe+0x768/0x8f0
platform_drv_probe+0x50/0xa8
really_probe+0x108/0x370
driver_probe_device+0x54/0xb8
__device_attach_driver+0x90/0xc0
bus_for_each_drv+0x70/0xc8
__device_attach+0xdc/0x140
device_initial_probe+0x10/0x18
bus_probe_device+0x94/0xa0
deferred_probe_work_func+0x70/0xa8
process_one_work+0x2a8/0x718
worker_thread+0x48/0x470
kthread+0x134/0x160
ret_from_fork+0x10/0x1c
Code: 17ffffaf d503201f f94086c0 91003000 (88dffc00)
---[ end trace ccf721c9400ddbd6 ]---
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
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.