From: Tomi Valkeinen <tomi.valkeinen@ti.com>
Date: Wed, 1 Jun 2011 12:54:06 +0000 (+0300)
Subject: OMAP: DSS2: DISPC: Fix context save/restore
X-Git-Tag: v3.1-rc1~98^2~3
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=49ea86f3fae21dd0334668b621e9c88f43a73c86;p=pandora-kernel.git

OMAP: DSS2: DISPC: Fix context save/restore

The current method of saving and restoring the context could cause a
restore before saving, effectively "restoring" zero values to registers.

Add ctx_valid field to indicate if the saved context is valid and can be
restored.

Also restructure the code to save the ctx_loss_count in save_context(),
which makes more sense than the previous method of storing new
ctx_loss_count in dispc_need_ctx_restore.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
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