From: Daniel Vetter <daniel.vetter@ffwll.ch>
Date: Tue, 10 Feb 2015 17:16:06 +0000 (+0000)
Subject: drm/i915: Add fb format modifier support
X-Git-Tag: omap-for-v4.2/o2_dc~72^2~35^2~48
X-Git-Url: https://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=2a80eada326fe83d2a1eaaa4c36831d95628770f;p=pandora-kernel.git

drm/i915: Add fb format modifier support

Currently we don't support anything but X tiled. And for an easier
transition it makes a lot of sense to just keep requiring that X tiled
is properly fenced.

Which means we need to do absolutely nothing in old code to support fb
modifiers, yay!

v2: Fix the Y tiling check, noticed by Tvrtko.

v3: Catch Y-tiled fb for legacy addfb again (Tvrtko) and explain why
we want X tiling to match in the comment.

Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
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