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[PATCH 3.12 43/84] drm/radeon/si/dpm: add workaround for for Jet parts

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From: Alex Deucher <alexander.deucher@amd.com>

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

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

commit 670bb4fd21c966d0d2a59ad4a99bb4889f9a2987 upstream.

Add clock quirks for Jet parts.

Reviewed-by: Sonny Jiang <sonny.jiang@amd.com>
Tested-by: Sonny Jiang <sonny.jiang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Jiri Slaby <jslaby@suse.cz>
---
 drivers/gpu/drm/radeon/si_dpm.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/drivers/gpu/drm/radeon/si_dpm.c b/drivers/gpu/drm/radeon/si_dpm.c
index 393217886d98..db9c7d26ed16 100644
--- a/drivers/gpu/drm/radeon/si_dpm.c
+++ b/drivers/gpu/drm/radeon/si_dpm.c
@@ -3012,6 +3012,12 @@ static void si_apply_state_adjust_rules(struct radeon_device *rdev,
 	if (rdev->pdev->device == 0x6811 &&
 	    rdev->pdev->revision == 0x81)
 		max_mclk = 120000;
+	/* limit sclk/mclk on Jet parts for stability */
+	if (rdev->pdev->device == 0x6665 &&
+	    rdev->pdev->revision == 0xc3) {
+		max_sclk = 75000;
+		max_mclk = 80000;
+	}
 
 	/* XXX validate the min clocks required for display */
 
-- 
2.10.1

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[PATCH 3.12 00/84] 3.12.65-stable review Jiri Slaby <jslaby@suse.cz> - 2016-10-17 10:10 +0200
  [PATCH 3.12 01/84] gcov: disable tree-loop-im to reduce stack usage Jiri Slaby <jslaby@suse.cz> - 2016-10-17 10:20 +0200
    [PATCH 3.12 43/84] drm/radeon/si/dpm: add workaround for for Jet parts Jiri Slaby <jslaby@suse.cz> - 2016-10-17 10:20 +0200
    [PATCH 3.12 17/84] fix fault_in_multipages_...() on architectures with no-op access_ok() Jiri Slaby <jslaby@suse.cz> - 2016-10-17 10:30 +0200
    [PATCH 3.12 11/84] Disable "maybe-uninitialized" warning globally Jiri Slaby <jslaby@suse.cz> - 2016-10-17 10:30 +0200
    [PATCH 3.12 13/84] Makefile: Mute warning for __builtin_return_address(>0) for tracing only Jiri Slaby <jslaby@suse.cz> - 2016-10-17 10:30 +0200
    [PATCH 3.12 20/84] tracing: Move mutex to protect against resetting of seq data Jiri Slaby <jslaby@suse.cz> - 2016-10-17 10:30 +0200
    [PATCH 3.12 18/84] mtd: pmcmsp-flash: Allocating too much in init_msp_flash() Jiri Slaby <jslaby@suse.cz> - 2016-10-17 10:30 +0200
    [PATCH 3.12 12/84] Disable "frame-address" warning Jiri Slaby <jslaby@suse.cz> - 2016-10-17 10:30 +0200
    [PATCH 3.12 15/84] iwlegacy: avoid warning about missing braces Jiri Slaby <jslaby@suse.cz> - 2016-10-17 10:30 +0200
    [PATCH 3.12 14/84] net: caif: fix misleading indentation Jiri Slaby <jslaby@suse.cz> - 2016-10-17 10:30 +0200
  Re: [PATCH 3.12 00/84] 3.12.65-stable review Guenter Roeck <linux@roeck-us.net> - 2016-10-17 20:40 +0200
  Re: [PATCH 3.12 00/84] 3.12.65-stable review Shuah Khan <shuah.kh@samsung.com> - 2016-10-18 00:20 +0200

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