Re: [PATCH 2/5] drm/stm: ltdc: add YCbCr 422 output support

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On 12/15/21 10:47 PM, Yannick Fertre wrote:
LTDC 40100 hw version supports the YCbCr 422 output,
reducing the output pins from 24 to 16. This feature
is useful for some external devices like HDMI bridges.

Both ITU-R BT.601 & ITU-R BT.709 are supported.

It is also possible to choose the chrominance order between
* Cb is output first (Y0Cb, then Y1Cr, Y2Cb and so on).
* Cr is output first (Y0Cr, then Y1Cb, Y2Cr and so on).

Signed-off-by: Yannick Fertre <yannick.fertre@xxxxxxxxxxx>
---
  drivers/gpu/drm/stm/ltdc.c | 44 +++++++++++++++++++++++++++++++++++++-
  drivers/gpu/drm/stm/ltdc.h |  1 +
  2 files changed, 44 insertions(+), 1 deletion(-)


Hi Yannick,
many thanks for your patch.
Acked-by: Philippe Cornu <philippe.cornu@xxxxxxxxxxx>
Reviewed-by: Philippe Cornu <philippe.cornu@xxxxxxxxxxx>
Philippe :-)



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