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drm/amd/powerplay: fix fan speed percent setting error on Tonga

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Signed-off-by: Eric Huang <JinHuiEric.Huang@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Eric Huang 2016-04-11 14:27:51 -04:00 committed by Alex Deucher
parent 85621630f1
commit d9624f8c68
1 changed files with 2 additions and 2 deletions
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4
drivers/gpu/drm/amd/powerplay/hwmgr/tonga_thermal.c
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@ -195,8 +195,8 @@ int tonga_fan_ctrl_set_fan_speed_percent(struct pp_hwmgr *hwmgr, uint32_t speed)
if (0 == duty100)
return -EINVAL;
tmp64 = (uint64_t)speed * 100;
do_div(tmp64, duty100);
tmp64 = (uint64_t)speed * duty100;
do_div(tmp64, 100);
duty = (uint32_t)tmp64;
PHM_WRITE_VFPF_INDIRECT_FIELD(hwmgr->device, CGS_IND_REG__SMC, CG_FDO_CTRL0, FDO_STATIC_DUTY, duty);