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[Why] When HPD IRQ occurs, it triggers a PSR disable and reenable directly through dc layer. Since it does not pass through the power layer, the layer that tracks whether PSR is enabled or disabled and which masks are set, this layer is now out of sync with the real PSR state in FW. Theoretically PSR can be enabled during hw programming sequences or any other situation where we must disable PSR. [How] Check if PSR is enabled before doing PSR disable/reenable. Reviewed-by: Anthony Koo <Anthony.Koo@amd.com> Acked-by: Pavle Kotarac <Pavle.Kotarac@amd.com> Signed-off-by: Wyatt Wood <wyatt.wood@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> |
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