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drm/ast: open key before detect chips
author
Y.C. Chen
<yc_chen@aspeedtech.com>
Wed, 10 Sep 2014 04:07:53 +0000
(12:07 +0800)
committer
Dave Airlie
<airlied@redhat.com>
Fri, 12 Sep 2014 03:41:27 +0000
(13:41 +1000)
Some config settings like 3rd TX chips will not get correctly
if the extended reg is protected
Signed-off-by: Y.C. Chen <yc_chen@aspeedtech.com>
Reviewed-by: Egbert Eich <eich@suse.de>
Cc: stable@vger.kernel.org
Signed-off-by: Dave Airlie <airlied@redhat.com>
drivers/gpu/drm/ast/ast_main.c
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diff --git
a/drivers/gpu/drm/ast/ast_main.c
b/drivers/gpu/drm/ast/ast_main.c
index a2cc6be97983fe327cd4f67a4c3204cd4985691c..b027e332caa5ed5cc62c4c0d7439897f7b8e9273 100644
(file)
--- a/
drivers/gpu/drm/ast/ast_main.c
+++ b/
drivers/gpu/drm/ast/ast_main.c
@@
-67,6
+67,7
@@
static int ast_detect_chip(struct drm_device *dev)
{
struct ast_private *ast = dev->dev_private;
uint32_t data, jreg;
+ ast_open_key(ast);
if (dev->pdev->device == PCI_CHIP_AST1180) {
ast->chip = AST1100;