[PATCH] drm/amd/pm: Remove arcturus min power limit

[Zhang, Hawking]

[AMD Official Use Only - AMD Internal Distribution Only]

Reviewed-by: Hawking Zhang <Hawking.Zhang at amd.com>

Regards,
Hawking
-----Original Message-----
From: Lazar, Lijo <Lijo.Lazar at amd.com>
Sent: Wednesday, November 20, 2024 11:14
To: amd-gfx at lists.freedesktop.org
Cc: Zhang, Hawking <Hawking.Zhang at amd.com>; Deucher, Alexander <Alexander.Deucher at amd.com>; Feng, Kenneth <Kenneth.Feng at amd.com>
Subject: [PATCH] drm/amd/pm: Remove arcturus min power limit

As per power team, there is no need to impose a lower bound on arcturus power limit. Any unreasonable limit set will result in frequent throttling.

Signed-off-by: Lijo Lazar <lijo.lazar at amd.com>
---
 drivers/gpu/drm/amd/pm/swsmu/smu11/arcturus_ppt.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/amd/pm/swsmu/smu11/arcturus_ppt.c b/drivers/gpu/drm/amd/pm/swsmu/smu11/arcturus_ppt.c
index 4b36c230e43a..12125303bb79 100644
--- a/drivers/gpu/drm/amd/pm/swsmu/smu11/arcturus_ppt.c
+++ b/drivers/gpu/drm/amd/pm/swsmu/smu11/arcturus_ppt.c
@@ -1344,8 +1344,12 @@ static int arcturus_get_power_limit(struct smu_context *smu,
                *default_power_limit = power_limit;
        if (max_power_limit)
                *max_power_limit = power_limit;
+       /**
+        * No lower bound is imposed on the limit. Any unreasonable limit set
+        * will result in frequent throttling.
+        */
        if (min_power_limit)
-               *min_power_limit = power_limit;
+               *min_power_limit = 0;

        return 0;
 }
--
2.25.1