Commit 2b5408a0 authored Oct 13, 2016 by Tom St Denis Committed by Sasha Levin Nov 23, 2016

drm/radeon/si_dpm: Limit clocks on HD86xx part



[ Upstream commit fb9a5b0c1c9893db2e0d18544fd49e19d784a87d ]

Limit clocks on a specific HD86xx part to avoid
crashes (while awaiting an appropriate PP fix).

Signed-off-by: Tom St Denis <tom.stdenis@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>

parent 2c21744a

drivers/gpu/drm/radeon/si_dpm.c

+6 −0

Original line number	Diff line number	Diff line
		@@ -2967,6 +2967,12 @@ static void si_apply_state_adjust_rules(struct radeon_device *rdev,
		max_sclk = 75000;
		max_mclk = 80000;
		}
		/* limit clocks on HD8600 series */
		if (rdev->pdev->device == 0x6660 &&
		rdev->pdev->revision == 0x83) {
		max_sclk = 75000;
		max_mclk = 80000;
		}

		if ((rdev->pm.dpm.new_active_crtc_count > 1) \|\|
		ni_dpm_vblank_too_short(rdev))