From: Yang Wang <kevinyang.wang@amd.com>
Date: Tue, 6 Jan 2026 06:42:40 +0000 (+0800)
Subject: drm/amd/pm: fix smu overdrive data type wrong issue on smu 14.0.2
X-Git-Tag: v6.19-rc6~20^2~1^2~5
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=90dbc0bc2aa60021615969841fed06790c992bde;p=thirdparty%2Flinux.git

drm/amd/pm: fix smu overdrive data type wrong issue on smu 14.0.2

resolving the issue of incorrect type definitions potentially causing calculation errors.

Fixes: 54f7f3ca982a ("drm/amdgpu/swm14: Update power limit logic")
Signed-off-by: Yang Wang <kevinyang.wang@amd.com>
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
(cherry picked from commit e3a03d0ae16d6b56e893cce8e52b44140e1ed985)
---

diff --git a/drivers/gpu/drm/amd/pm/swsmu/smu14/smu_v14_0_2_ppt.c b/drivers/gpu/drm/amd/pm/swsmu/smu14/smu_v14_0_2_ppt.c
index 33c3cd2e1e24..d7642d388bc3 100644
--- a/drivers/gpu/drm/amd/pm/swsmu/smu14/smu_v14_0_2_ppt.c
+++ b/drivers/gpu/drm/amd/pm/swsmu/smu14/smu_v14_0_2_ppt.c
@@ -1702,8 +1702,9 @@ static int smu_v14_0_2_get_power_limit(struct smu_context *smu,
 		table_context->power_play_table;
 	PPTable_t *pptable = table_context->driver_pptable;
 	CustomSkuTable_t *skutable = &pptable->CustomSkuTable;
-	uint32_t power_limit, od_percent_upper = 0, od_percent_lower = 0;
+	int16_t od_percent_upper = 0, od_percent_lower = 0;
 	uint32_t msg_limit = pptable->SkuTable.MsgLimits.Power[PPT_THROTTLER_PPT0][POWER_SOURCE_AC];
+	uint32_t power_limit;
 
 	if (smu_v14_0_get_current_power_limit(smu, &power_limit))
 		power_limit = smu->adev->pm.ac_power ?