APPLIED: [Disco][PATCH] drm/i915/dp: revert back to max link rate and lane count on eDP

Seth Forshee seth.forshee at
Sun Apr 14 18:12:26 UTC 2019

On Sun, Apr 14, 2019 at 06:07:55PM +0300, Timo Aaltonen wrote:
> From: Jani Nikula <jani.nikula at>
> BugLink:
> Commit 7769db588384 ("drm/i915/dp: optimize eDP 1.4+ link config fast
> and narrow") started to optize the eDP 1.4+ link config, both per spec
> and as preparation for display stream compression support.
> Sadly, we again face panels that flat out fail with parameters they
> claim to support. Revert, and go back to the drawing board.
> v2: Actually revert to max params instead of just wide-and-slow.
> Bugzilla:
> Fixes: 7769db588384 ("drm/i915/dp: optimize eDP 1.4+ link config fast and narrow")
> Cc: Ville Syrjälä <ville.syrjala at>
> Cc: Manasi Navare <manasi.d.navare at>
> Cc: Rodrigo Vivi <rodrigo.vivi at>
> Cc: Matt Atwood <matthew.s.atwood at>
> Cc: "Lee, Shawn C" <shawn.c.lee at>
> Cc: Dave Airlie <airlied at>
> Cc: intel-gfx at
> Cc: <stable at> # v5.0+
> Reviewed-by: Rodrigo Vivi <rodrigo.vivi at>
> Reviewed-by: Manasi Navare <manasi.d.navare at>
> Tested-by: Albert Astals Cid <aacid at> # v5.0 backport
> Tested-by: Emanuele Panigati <ilpanich at> # v5.0 backport
> Tested-by: Matteo Iervasi <matteoiervasi at> # v5.0 backport
> Signed-off-by: Jani Nikula <jani.nikula at>
> Link:
> (backported from drm-intel-next commit f11cb1c19ad0563b3c1ea5eb16a6bac0e401f428)
> Signed-off-by: Timo Aaltonen <timo.aaltonen at>

Applied to disco/master-next, thanks!

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