4.17-stable review patch. If anyone has any objections, please let me know.
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From: Mikita Lipski mikita.lipski@amd.com
[ 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 --- drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_irq.c | 3 +++ 1 file changed, 3 insertions(+)
--- 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 am return 0; }
+ if (acrtc->otg_inst == -1) + return 0; + irq_source = dal_irq_type + acrtc->otg_inst;
st = (state == AMDGPU_IRQ_STATE_ENABLE);