linux-kernel - [PATCH 3.12 161/170] drm/radeon/dpm: Reenabling SS on Cayman

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Message-Id: <998d7902cafec17e94f0ad6cd8126c5764342939.1405685481.git.jslaby@suse.cz>
Date:	Fri, 18 Jul 2014 14:12:46 +0200
From:	Jiri Slaby <jslaby@...e.cz>
To:	stable@...r.kernel.org
Cc:	linux-kernel@...r.kernel.org,
	Alexandre Demers <alexandre.f.demers@...il.com>,
	Alex Deucher <alexander.deucher@....com>,
	Jiri Slaby <jslaby@...e.cz>
Subject: [PATCH 3.12 161/170] drm/radeon/dpm: Reenabling SS on Cayman

From: Alexandre Demers <alexandre.f.demers@...il.com>

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

===============

commit 41959341ac7e33dd360c7a881d13566f9eca37b2 upstream.

It reverts commit c745fe611ca42295c9d91d8e305d27983e9132ef now that
Cayman is stable since VDDCI fix. Spread spectrum was not the culprit.

This depends on b0880e87c1fd038b84498944f52e52c3e86ebe59
(drm/radeon/dpm: fix vddci setup typo on cayman).

Signed-off-by: Alexandre Demers <alexandre.f.demers@...il.com>
Signed-off-by: Alex Deucher <alexander.deucher@....com>
Signed-off-by: Jiri Slaby <jslaby@...e.cz>
---
 drivers/gpu/drm/radeon/rv770_dpm.c | 6 ------
 1 file changed, 6 deletions(-)

diff --git a/drivers/gpu/drm/radeon/rv770_dpm.c b/drivers/gpu/drm/radeon/rv770_dpm.c
index a239b30aaf9d..890cf1710253 100644
--- a/drivers/gpu/drm/radeon/rv770_dpm.c
+++ b/drivers/gpu/drm/radeon/rv770_dpm.c
@@ -2328,12 +2328,6 @@ void rv770_get_engine_memory_ss(struct radeon_device *rdev)
 	pi->mclk_ss = radeon_atombios_get_asic_ss_info(rdev, &ss,
 						       ASIC_INTERNAL_MEMORY_SS, 0);
 
-	/* disable ss, causes hangs on some cayman boards */
-	if (rdev->family == CHIP_CAYMAN) {
-		pi->sclk_ss = false;
-		pi->mclk_ss = false;
-	}
-
 	if (pi->sclk_ss || pi->mclk_ss)
 		pi->dynamic_ss = true;
 	else
-- 
2.0.0

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