From 45b0cf54bc5da284afc86fad97e1c8b1bbe26d73 Mon Sep 17 00:00:00 2001 From: Alex Deucher Date: Sat, 19 Dec 2015 18:26:55 -0500 Subject: [PATCH] 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 Signed-off-by: Alex Deucher --- drivers/gpu/drm/amd/powerplay/hwmgr/tonga_thermal.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/gpu/drm/amd/powerplay/hwmgr/tonga_thermal.c b/drivers/gpu/drm/amd/powerplay/hwmgr/tonga_thermal.c index 5da7586..2e159b0 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; -- 2.7.4