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Subject[PATCH AUTOSEL 6.0 37/44] Revert "drm/amdgpu: Revert "drm/amdgpu: getting fan speed pwm for vega10 properly""
Date
From: Asher Song <Asher.Song@amd.com>

[ Upstream commit 30b8e7b8ee3be003e0df85c857c5cd0e0bd58b82 ]

This reverts commit 4545ae2ed3f2f7c3f615a53399c9c8460ee5bca7.

The origin patch "drm/amdgpu: getting fan speed pwm for vega10 properly" works fine.
Test failure is caused by test case self.

Signed-off-by: Asher Song <Asher.Song@amd.com>
Reviewed-by: Guchun Chen <guchun.chen@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
.../amd/pm/powerplay/hwmgr/vega10_thermal.c | 25 +++++++++----------
1 file changed, 12 insertions(+), 13 deletions(-)

diff --git a/drivers/gpu/drm/amd/pm/powerplay/hwmgr/vega10_thermal.c b/drivers/gpu/drm/amd/pm/powerplay/hwmgr/vega10_thermal.c
index dad3e3741a4e..190af79f3236 100644
--- a/drivers/gpu/drm/amd/pm/powerplay/hwmgr/vega10_thermal.c
+++ b/drivers/gpu/drm/amd/pm/powerplay/hwmgr/vega10_thermal.c
@@ -67,22 +67,21 @@ int vega10_fan_ctrl_get_fan_speed_info(struct pp_hwmgr *hwmgr,
int vega10_fan_ctrl_get_fan_speed_pwm(struct pp_hwmgr *hwmgr,
uint32_t *speed)
{
- uint32_t current_rpm;
- uint32_t percent = 0;
-
- if (hwmgr->thermal_controller.fanInfo.bNoFan)
- return 0;
+ struct amdgpu_device *adev = hwmgr->adev;
+ uint32_t duty100, duty;
+ uint64_t tmp64;

- if (vega10_get_current_rpm(hwmgr, &current_rpm))
- return -1;
+ duty100 = REG_GET_FIELD(RREG32_SOC15(THM, 0, mmCG_FDO_CTRL1),
+ CG_FDO_CTRL1, FMAX_DUTY100);
+ duty = REG_GET_FIELD(RREG32_SOC15(THM, 0, mmCG_THERMAL_STATUS),
+ CG_THERMAL_STATUS, FDO_PWM_DUTY);

- if (hwmgr->thermal_controller.
- advanceFanControlParameters.usMaxFanRPM != 0)
- percent = current_rpm * 255 /
- hwmgr->thermal_controller.
- advanceFanControlParameters.usMaxFanRPM;
+ if (!duty100)
+ return -EINVAL;

- *speed = MIN(percent, 255);
+ tmp64 = (uint64_t)duty * 255;
+ do_div(tmp64, duty100);
+ *speed = MIN((uint32_t)tmp64, 255);

return 0;
}
--
2.35.1
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