drm/amd/display: add new IRQ enum for underflows

[WHY & HOW]
needed in certain scenarios for debugging and logging

Reviewed-by: Joshua Aberback <joshua.aberback@amd.com>
Reviewed-by: Martin Leung <martin.leung@amd.com>
Signed-off-by: Leo Zeng <Leo.Zeng@amd.com>
Signed-off-by: Aurabindo Pillai <aurabindo.pillai@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

diff --git a/drivers/gpu/drm/amd/display/dc/irq_types.h b/drivers/gpu/drm/amd/display/dc/irq_types.h
index e962c426beda3c00f6fd31588fd954d9e7992608..110f656d43aee00ce041b4fd3aa39613f989fa66 100644 (file)
--- a/drivers/gpu/drm/amd/display/dc/irq_types.h
+++ b/drivers/gpu/drm/amd/display/dc/irq_types.h
@@ -170,6 +170,7 @@ enum irq_type
        IRQ_TYPE_VUPDATE = DC_IRQ_SOURCE_VUPDATE1,
        IRQ_TYPE_VBLANK = DC_IRQ_SOURCE_VBLANK1,
        IRQ_TYPE_VLINE0 = DC_IRQ_SOURCE_DC1_VLINE0,
+       IRQ_TYPE_DCUNDERFLOW = DC_IRQ_SOURCE_DC1UNDERFLOW,
 };
 
 #define DAL_VALID_IRQ_SRC_NUM(src) \