drm/amd/powerplay/smu7: disable mclk switching for high refresh rates
Even if the vblank period would allow it, it still seems to be problematic on some cards. bug: https://bugs.freedesktop.org/show_bug.cgi?id=96868 Cc: stable@vger.kernel.org Acked-by: Christian König <christian.koenig@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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@ -2793,7 +2793,8 @@ static int smu7_apply_state_adjust_rules(struct pp_hwmgr *hwmgr,
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disable_mclk_switching = ((1 < info.display_count) ||
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disable_mclk_switching = ((1 < info.display_count) ||
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disable_mclk_switching_for_frame_lock ||
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disable_mclk_switching_for_frame_lock ||
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smu7_vblank_too_short(hwmgr, mode_info.vblank_time_us));
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smu7_vblank_too_short(hwmgr, mode_info.vblank_time_us) ||
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(mode_info.refresh_rate > 120));
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sclk = smu7_ps->performance_levels[0].engine_clock;
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sclk = smu7_ps->performance_levels[0].engine_clock;
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mclk = smu7_ps->performance_levels[0].memory_clock;
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mclk = smu7_ps->performance_levels[0].memory_clock;
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