drm/tegra: hdmi: Fix audio to work with any pixel clock rate

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The audio setting implementation was limited to a few specific pixel
clocks. This prevented HDMI audio from working on several test devices
as they need a pixel clock that is not supported by this implementation.

Fix this by implementing the algorithm provided in the TRM using fixed
point arithmetic. This allows the driver to cope with any sane pixel
clock rate.

Signed-off-by: Alban Bedel <alban.bedel@avionic-design.de>
[treding@nvidia.com: fix uninitialized variable warning]
Signed-off-by: Thierry Reding <treding@nvidia.com>

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Alban Bedel 2016-12-14 18:20:39 +01:00 • committed by Thierry Reding

parent e3c702dcc7

commit db5adf4d6d

1 changed files with 58 additions and 109 deletions

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drivers/gpu/drm/tegra/hdmi.c

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