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authorAlex Deucher <alexander.deucher@amd.com>2015-12-20 02:26:55 +0300
committerAlex Deucher <alexander.deucher@amd.com>2015-12-22 00:42:58 +0300
commit45b0cf54bc5da284afc86fad97e1c8b1bbe26d73 (patch)
tree8870af3dce5887ea738255805234c470c246135f /drivers/gpu/drm/amd
parent605ed21929fee2b39e8cb25301184c4ad9b468e5 (diff)
downloadlinux-45b0cf54bc5da284afc86fad97e1c8b1bbe26d73.tar.xz
amd/powerplay: don't enable ucode fan control if vbios has no fan table
Some systems have a single fan controlled by ACPI or some other method. Reviewed-by: Tom St Denis <tom.stdenis@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd')
-rw-r--r--drivers/gpu/drm/amd/powerplay/hwmgr/tonga_thermal.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/powerplay/hwmgr/tonga_thermal.c b/drivers/gpu/drm/amd/powerplay/hwmgr/tonga_thermal.c
index 5da758674a48..2e159b003e71 100644
--- a/drivers/gpu/drm/amd/powerplay/hwmgr/tonga_thermal.c
+++ b/drivers/gpu/drm/amd/powerplay/hwmgr/tonga_thermal.c
@@ -371,6 +371,9 @@ int tf_tonga_thermal_setup_fan_table(struct pp_hwmgr *hwmgr, void *input, void *
int res;
uint64_t tmp64;
+ if (!phm_cap_enabled(hwmgr->platform_descriptor.platformCaps, PHM_PlatformCaps_MicrocodeFanControl))
+ return 0;
+
if (0 == data->fan_table_start) {
phm_cap_unset(hwmgr->platform_descriptor.platformCaps, PHM_PlatformCaps_MicrocodeFanControl);
return 0;