From: Roman Li <Roman.Li@amd.com>
Date: Thu, 28 Sep 2017 12:57:21 -0400
Subject: drm/amd/display: Fix irq enable/disable on resume.
Git-commit: c018b04b7c17e0814bc75b09d782204d73c64b1b
Patch-mainline: v4.15-rc1
References: FATE#326289 FATE#326079 FATE#326049 FATE#322398 FATE#326166

Fixing loop boundaries in irq enable/disable on resume.

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>
Acked-by: Petr Tesarik <ptesarik@suse.com>
---
 drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_irq.c |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_irq.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_irq.c
@@ -435,7 +435,7 @@ int amdgpu_dm_irq_suspend(struct amdgpu_
 	 * Disable HW interrupt  for HPD and HPDRX only since FLIP and VBLANK
 	 * will be disabled from manage_dm_interrupts on disable CRTC.
 	 */
-	for (src = DC_IRQ_SOURCE_HPD1; src < DC_IRQ_SOURCE_HPD6RX; src++) {
+	for (src = DC_IRQ_SOURCE_HPD1; src <= DC_IRQ_SOURCE_HPD6RX; 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))
@@ -462,7 +462,7 @@ int amdgpu_dm_irq_resume_early(struct am
 	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; 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))