From: Alex Deucher Date: Mon, 26 Sep 2016 19:32:50 +0000 (-0400) Subject: drm/radeon/si/dpm: add workaround for for Jet parts X-Git-Tag: v3.12.65~42 X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=88aef089920e0c1ab7c49aeb1539d4119b5219dc;p=thirdparty%2Fkernel%2Fstable.git drm/radeon/si/dpm: add workaround for for Jet parts commit 670bb4fd21c966d0d2a59ad4a99bb4889f9a2987 upstream. Add clock quirks for Jet parts. Reviewed-by: Sonny Jiang Tested-by: Sonny Jiang Signed-off-by: Alex Deucher Signed-off-by: Alex Deucher Signed-off-by: Jiri Slaby --- diff --git a/drivers/gpu/drm/radeon/si_dpm.c b/drivers/gpu/drm/radeon/si_dpm.c index 393217886d98e..db9c7d26ed168 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 */