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A mirror of the official Linux kernel repository just in case
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DSP modes and left/right justified modes can be supported on bcm2835 by configuring the frame sync polarity and frame sync length registers and by adjusting the channel data position registers. Clock and frame sync polarity handling in hw_params has been refactored to make the interaction between logical rising/falling edge frame start and physical configuration (changed by normal/inverted polarity modes) clearer. Modes where the first active data bit is transmitted immediately after frame start (eg DSP mode B with slot 0 active) only work reliable if bcm2835 is configured as frame master. In frame slave mode channel swap (or shift, this isn't quite clear yet) can occur. Currently the driver only warns if an unstable configuration is detected but doensn't prevent using them. Signed-off-by: Matthias Reichl <hias@horus.com> Signed-off-by: Mark Brown <broonie@kernel.org> |
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Linux kernel ============ This file was moved to Documentation/admin-guide/README.rst Please notice that there are several guides for kernel developers and users. These guides can be rendered in a number of formats, like HTML and PDF. In order to build the documentation, use ``make htmldocs`` or ``make pdfdocs``. 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.