drm/amd/display: Fix hotplug after s3 resume.

On S3 resume the HPD6 irq source was not reenabled
due to loop boundary bug.

Signed-off-by: Roman Li <Roman.Li@amd.com>
Reviewed-by: Mikita Lipski <Mikita.Lipski@amd.com>
Acked-by: Harry Wentland <Harry.Wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

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 52b6e4a..8de19ba 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
@@ -462,7 +462,7 @@ int amdgpu_dm_irq_resume_early(struct amdgpu_device *adev)
        DRM_DEBUG_KMS("DM_IRQ: early resume\n");
 
        /* re-enable short pulse interrupts HW interrupt */
-       for (src = DC_IRQ_SOURCE_HPD1RX; src < DC_IRQ_SOURCE_HPD6RX + 1; src++) {
+       for (src = DC_IRQ_SOURCE_HPD1RX; src <= DC_IRQ_SOURCE_HPD6RX + 1; src++) {
                hnd_list_l = &adev->dm.irq_handler_list_low_tab[src].head;
                hnd_list_h = &adev->dm.irq_handler_list_high_tab[src];
                if (!list_empty(hnd_list_l) || !list_empty(hnd_list_h))
@@ -488,7 +488,7 @@ int amdgpu_dm_irq_resume_late(struct amdgpu_device *adev)
         * Renable HW interrupt  for HPD and only since FLIP and VBLANK
         * will be enabled from manage_dm_interrupts on enable CRTC.
         */
-       for (src = DC_IRQ_SOURCE_HPD1; src < DC_IRQ_SOURCE_HPD6; src++) {
+       for (src = DC_IRQ_SOURCE_HPD1; src <= DC_IRQ_SOURCE_HPD6; src++) {
                hnd_list_l = &adev->dm.irq_handler_list_low_tab[src].head;
                hnd_list_h = &adev->dm.irq_handler_list_high_tab[src];
                if (!list_empty(hnd_list_l) || !list_empty(hnd_list_h))