mirror_ubuntu-kernels/drivers/gpu
Neil Armstrong 836f90f9e2 drm/bridge: dw-hdmi: disable SCDC configuration for invalid setups
This patch is an attempt to limit HDMI 2.0 SCDC setup when :
- the SoC embeds an HDMI 1.4 only controller
- the EDID supports SCDC but not scrambling
- the EDID supports SCDC scrambling but not for low TMDS bit rates,
  while only supporting low TMDS bit rates

This to avoid communicating with the SCDC DDC slave uncessary, and
setting the DW-HDMI TMDS Scrambler setup when not supported by the
underlying hardware.

Reported-by: Rob Herring <robh@kernel.org>
Fixes: 264fce6cc2 ("drm/bridge: dw-hdmi: Add SCDC and TMDS Scrambling support")
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Tested-by: Rob Herring <robh@kernel.org>
Reviewed-by: Andrzej Hajda <a.hajda@samsung.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190315095414.28520-1-narmstrong@baylibre.com
2019-03-25 13:15:00 +01:00
..
drm drm/bridge: dw-hdmi: disable SCDC configuration for invalid setups 2019-03-25 13:15:00 +01:00
host1x gpu: host1x: Continue CDMA execution starting with a next job 2019-02-07 18:34:25 +01:00
ipu-v3 media updates for v5.1-rc1 2019-03-09 14:45:54 -08:00
vga - qxl: Remove the conflicting framebuffers earlier 2019-03-14 11:37:46 +10:00
Makefile