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ef070b4e4aa25bb5f8632ad196644026c11903bf
When the commitb6ced294fb("spi: pxa2xx: Switch to SPI core DMA mapping functionality") switches to SPI core provided DMA helpers, it missed to setup maximum supported DMA transfer length for the controller and thus users mistakenly try to send more data than supported with the following warning: ili9341 spi-PRP0001:01: DMA disabled for transfer length 153600 greater than 65536 Setup maximum supported DMA transfer length in order to make users know the limit. Fixes:b6ced294fb("spi: pxa2xx: Switch to SPI core DMA mapping functionality") Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Mark Brown <broonie@kernel.org> Cc: stable@vger.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.
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