From: Rex Zhu <Rex.Zhu@amd.com>
Date: Thu, 21 Sep 2017 10:34:48 +0800
Subject: drm/amd/powerplay: refine phm_register_thermal_interrupt interface
Git-commit: 6042e8560ef448aa1a9ca16473f0a5a264462f41
Patch-mainline: v4.15-rc1
References: FATE#326289 FATE#326079 FATE#326049 FATE#322398 FATE#326166

currently, not all asics implement this callback function
so not return error to avoid powerplay initialize failed
in those asices

Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Rex Zhu <Rex.Zhu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Acked-by: Petr Tesarik <ptesarik@suse.com>
---
 drivers/gpu/drm/amd/powerplay/hwmgr/hardwaremanager.c |    6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

--- a/drivers/gpu/drm/amd/powerplay/hwmgr/hardwaremanager.c
+++ b/drivers/gpu/drm/amd/powerplay/hwmgr/hardwaremanager.c
@@ -210,10 +210,10 @@ int phm_register_thermal_interrupt(struc
 {
 	PHM_FUNC_CHECK(hwmgr);
 
-	if (hwmgr->hwmgr_func->register_internal_thermal_interrupt == NULL)
-		return -EINVAL;
+	if (hwmgr->hwmgr_func->register_internal_thermal_interrupt != NULL)
+		return hwmgr->hwmgr_func->register_internal_thermal_interrupt(hwmgr, info);
 
-	return hwmgr->hwmgr_func->register_internal_thermal_interrupt(hwmgr, info);
+	return 0;
 }
 
 /**