[PATCH 3.13 059/163] drm/ast: open key before detect chips

From: Kamal Mostafa
Date: Thu Oct 09 2014 - 17:11:24 EST -stable review patch. If anyone has any objections, please let me know.


From: "Y.C. Chen" <yc_chen@xxxxxxxxxxxxxx>

commit 8f372e250ae5f4a5faf87ca1a629d0ae59db65b6 upstream.

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@xxxxxxxxxxxxxx>
Reviewed-by: Egbert Eich <eich@xxxxxxx>
Signed-off-by: Dave Airlie <airlied@xxxxxxxxxx>
Signed-off-by: Kamal Mostafa <kamal@xxxxxxxxxxxxx>
drivers/gpu/drm/ast/ast_main.c | 1 +
1 file changed, 1 insertion(+)

diff --git a/drivers/gpu/drm/ast/ast_main.c b/drivers/gpu/drm/ast/ast_main.c
index af0b868..df1266d 100644
--- a/drivers/gpu/drm/ast/ast_main.c
+++ b/drivers/gpu/drm/ast/ast_main.c
@@ -66,6 +66,7 @@ uint8_t ast_get_index_reg_mask(struct ast_private *ast,
static int ast_detect_chip(struct drm_device *dev)
struct ast_private *ast = dev->dev_private;
+ ast_open_key(ast);

if (dev->pdev->device == PCI_CHIP_AST1180) {
ast->chip = AST1100;

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