drm/radeon/dpm: disable sclk ss on rv6xx

Enabling spread spectrum on the engine clock
leads to hangs on some asics.

Fixes:
https://bugs.freedesktop.org/show_bug.cgi?id=66963



Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

parent 2858c00d

drivers/gpu/drm/radeon/rv6xx_dpm.c

+3 −0

Original line number	Diff line number	Diff line
		@@ -1992,6 +1992,9 @@ int rv6xx_dpm_init(struct radeon_device *rdev)
		pi->mclk_ss = radeon_atombios_get_asic_ss_info(rdev, &ss,
		ASIC_INTERNAL_MEMORY_SS, 0);

		/* Disable sclk ss, causes hangs on a lot of systems */
		pi->sclk_ss = false;

		if (pi->sclk_ss \|\| pi->mclk_ss)
		pi->dynamic_ss = true;
		else