Commit acab02c1 authored by Arunpravin's avatar Arunpravin Committed by Alex Deucher
Browse files

drm/amdgpu/pm/smu11: Fix fan set speed bug 



Fix fan set speed calculation.

Suggested-by: default avatarKenneth Feng <kenneth.feng@amd.com>
Signed-off-by: default avatarArunpravin <Arunpravin.PaneerSelvam@amd.com>
Acked-by: default avatarAlex Deucher <alexander.deucher@amd.com>
Reviewed-by: default avatarKenneth Feng <kenneth.feng@amd.com>
Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
parent b6505459

drivers/gpu/drm/amd/pm/swsmu/smu11/smu_v11_0.c

+6 −1
Original line number Diff line number Diff line
@@ -1164,7 +1164,12 @@ int smu_v11_0_set_fan_speed_rpm(struct smu_context *smu, 
	if (ret)

		return ret;



	crystal_clock_freq = amdgpu_asic_get_xclk(adev);

	/*

	 * crystal_clock_freq div by 4 is required since the fan control

	 * module refers to 25MHz

	 */



	crystal_clock_freq = amdgpu_asic_get_xclk(adev) / 4;

	tach_period = 60 * crystal_clock_freq * 10000 / (8 * speed);

	WREG32_SOC15(THM, 0, mmCG_TACH_CTRL,

		     REG_SET_FIELD(RREG32_SOC15(THM, 0, mmCG_TACH_CTRL),