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

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Date:	Thu,  9 Oct 2014 14:01:24 -0700
From:	Kamal Mostafa <kamal@...onical.com>
To:	linux-kernel@...r.kernel.org, stable@...r.kernel.org,
	kernel-team@...ts.ubuntu.com
Cc:	"Y.C. Chen" <yc_chen@...eedtech.com>,
	Dave Airlie <airlied@...hat.com>,
	Kamal Mostafa <kamal@...onical.com>
Subject: [PATCH 3.13 059/163] drm/ast: open key before detect chips

3.13.11.9 -stable review patch.  If anyone has any objections, please let me know.

------------------

From: "Y.C. Chen" <yc_chen@...eedtech.com>

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@...eedtech.com>
Reviewed-by: Egbert Eich <eich@...e.de>
Signed-off-by: Dave Airlie <airlied@...hat.com>
Signed-off-by: Kamal Mostafa <kamal@...onical.com>
---
 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;
-- 
1.9.1

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