drm/exynos: mixer: document YCbCr magic numbers

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The output stage of the mixer uses YCbCr for the internal
computations, which is the reason that some registers take
YCbCr related data as input. In particular this applies
to MXR_BG_COLOR{0,1,2} and MXR_CM_COEFF_{Y,CB,CR}.

Document the formatting of the data which we write to
these registers.

While at it, unify wording of comments in the register header.

Reviewed-by: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: Tobias Jakobi <tjakobi@math.uni-bielefeld.de>
Signed-off-by: Inki Dae <inki.dae@samsung.com>

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Tobias Jakobi 2017-03-10 15:21:54 +01:00 • committed by Inki Dae

parent 2a39db0136

commit 2a6e4cd53c

2 changed files with 30 additions and 10 deletions

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33

drivers/gpu/drm/exynos/exynos_mixer.c

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7

drivers/gpu/drm/exynos/regs-mixer.h

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