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In some case，log like this: [ 12.393926] rk3x-i2c ff150000.i2c: irq in STATE_IDLE, ipd = 0x51 [ 12.416592] rk3x-i2c ff150000.i2c: irq in STATE_IDLE, ipd = 0x51 The i2c clock is disabled, so the pending irq clean is not worked. Disable the interrupt after the i2c jobs were done, the error log would not happen. Change-Id: If04a2e2214d675410c67db0f131ee7ef635ddcb4 Signed-off-by: David Wu <david.wu@rock-chips.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.
See Documentation/00-INDEX for a list of what is contained in each file.
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.