drm/i915/icl: DSI vswing programming sequence

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This patch setup voltage swing before enabling
combo PHY DDI (shared with DSI).
Note that DSI voltage swing programming is for
high speed data buffers. HW automatically handles
the voltage swing for the low power data buffers.

v2: Rebase
v3: Address various review comments related to VSWING
    programming (Jani N)

Signed-off-by: Madhav Chauhan <madhav.chauhan@intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/1537095223-5184-3-git-send-email-madhav.chauhan@intel.com

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Madhav Chauhan 2018-09-16 16:23:25 +05:30 • committed by Jani Nikula

parent fc41001d97

commit 3f4b9d9d02

1 changed files with 120 additions and 0 deletions

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drivers/gpu/drm/i915/icl_dsi.c

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