From ebd14afe8fa7d3f00f2ab1c8c4befee2fa6c0504 Mon Sep 17 00:00:00 2001
From: Thierry Reding <treding@nvidia.com>
Date: Mon, 8 Dec 2014 16:22:28 +0100
Subject: [PATCH] drm/tegra: dsi: Implement ->atomic_check()

The implementation of the ->atomic_check() callback precomputes all
parameters to check if the given configuration can be applied. If so the
precomputed values are stored in the atomic state object for the encoder
and applied during modeset. In that way the modeset no longer needs to
perform any checking but simply program values into registers.

Signed-off-by: Thierry Reding <treding@nvidia.com>
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