drm/ast: Call open_key before enable_mmio in POST code
authorY.C. Chen <yc_chen@aspeedtech.com>
Wed, 22 Feb 2017 04:14:19 +0000 (15:14 +1100)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Wed, 15 Mar 2017 02:20:15 +0000 (10:20 +0800)
commitcd8183923984ed106978f498492c529165fa15f2
treeaf936a7aed7f8a31dd41596243444899824f54cf
parentf38a3c87d6eeee5b3bed7d71887bdbbfe39f79b3
drm/ast: Call open_key before enable_mmio in POST code

commit 9bb92f51558f2ef5f56c257bdcea0588f31d857e upstream.

open_key enables access the registers used by enable_mmio

Signed-off-by: Y.C. Chen <yc_chen@aspeedtech.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Acked-by: Joel Stanley <joel@jms.id.au>
Tested-by: Y.C. Chen <yc_chen@aspeedtech.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
drivers/gpu/drm/ast/ast_post.c