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| Filename | Latest commit message | Latest commit date |
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597b046f0d
In case of SSI0 playback, SSI1 capture, SSI0 might be shared for clock output if clock master mode. Current rsnd driver had been assumed that SSI clock contiguous output which is needed for SSI parent needs SSICR::EN (SSI module enable) bit. But, this bit controls data input/output, not for clock. Clock contiguous output needs SSICR : FORCE, SCKD, SWSD, and SSIWSR : CONT. Not SSICR : EN. Because of this wrong assumption, and insufficient control, on current code, for example, if it starts SSI0(playback) -> SSI1(capture) order, SSI0 SSICR::EN bit will temporarily be 0. It causes playback side underrun error. This is bug. We can reproduce this issue with SSI+SRC (without DVC), and capture during playback operation. This patch fixup current (wrong) assumption, and control SSICR::EN bit correctly. Reported-by: Hiroyuki Yokoyama <hiroyuki.yokoyama.vx@renesas.com> Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Tested-by: Hiroyuki Yokoyama <hiroyuki.yokoyama.vx@renesas.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.