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64b6426a6e
I was testing the polling mode txgbe_i2c_dw_xfer_quirk() on a HW where the i2c-designware has interrupt connected and shared with other device. I noticed there is a bogus interrupt for each transfer. Reason for this that both polling mode functions call the i2c_dw_xfer_init() which enable interrupts then followed by immediate disable by the same polling mode functions. This is enough to trigger TX_EMPTY interrupt. Fix this by introducing a __i2c_dw_write_intr_mask() helper that unmasks interrupts conditionally and use it in i2c_dw_xfer_init(). Signed-off-by: Jarkko Nikula <jarkko.nikula@linux.intel.com> Tested-by: Jiawen Wu <jiawenwu@trustnetic.com> Signed-off-by: Andi Shyti <andi.shyti@kernel.org>
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.