drm/amd/display: Do not program interrupt status on disabled crtc

[ Upstream commit 4ea7fc09539bd2399c1fa7acea14529406120d9e ]

Prevent interrupt programming of a crtc on which the stream is disabled and
it doesn't have an OTG to reference.

Signed-off-by: Mikita Lipski <mikita.lipski@amd.com>
Reviewed-by: Harry Wentland <Harry.Wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_irq.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_irq.c
index 4be21bf5474981a8b954f4b1fb6b5c6a283cc82b..a910f01838ab0dd1a7d395f82b9d542d5abfbbf0 100644 (file)
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_irq.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_irq.c
@@ -555,6 +555,9 @@ static inline int dm_irq_state(struct amdgpu_device *adev,
                return 0;
        }
 
+       if (acrtc->otg_inst == -1)
+               return 0;
+
        irq_source = dal_irq_type + acrtc->otg_inst;
 
        st = (state == AMDGPU_IRQ_STATE_ENABLE);