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authorEvan Quan <evan.quan@amd.com>2022-12-16 12:12:53 +0300
committerAlex Deucher <alexander.deucher@amd.com>2023-01-05 20:02:24 +0300
commit6fea87637bf36bd285227f490132e83582ab7513 (patch)
tree1fa9b0b3b82ef69115d1edade8bc26f3f47c612a /drivers/gpu
parent93235bfd5a9c3329df31d1a4d7a93d138b3138c2 (diff)
downloadlinux-6fea87637bf36bd285227f490132e83582ab7513.tar.xz
drm/amd/pm: correct the reference clock for fan speed(rpm) calculation
Correct the reference clock as 25Mhz for SMU13 fan speed calculation. Signed-off-by: Evan Quan <evan.quan@amd.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Cc: stable@vger.kernel.org # 6.0.x, 6.1.x
Diffstat (limited to 'drivers/gpu')
-rw-r--r--drivers/gpu/drm/amd/pm/swsmu/smu13/smu_v13_0.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/gpu/drm/amd/pm/swsmu/smu13/smu_v13_0.c b/drivers/gpu/drm/amd/pm/swsmu/smu13/smu_v13_0.c
index e54b760b875b..d1f50d42288d 100644
--- a/drivers/gpu/drm/amd/pm/swsmu/smu13/smu_v13_0.c
+++ b/drivers/gpu/drm/amd/pm/swsmu/smu13/smu_v13_0.c
@@ -1261,7 +1261,8 @@ int smu_v13_0_set_fan_speed_rpm(struct smu_context *smu,
uint32_t speed)
{
struct amdgpu_device *adev = smu->adev;
- uint32_t tach_period, crystal_clock_freq;
+ uint32_t crystal_clock_freq = 2500;
+ uint32_t tach_period;
int ret;
if (!speed)
@@ -1271,7 +1272,6 @@ int smu_v13_0_set_fan_speed_rpm(struct smu_context *smu,
if (ret)
return ret;
- crystal_clock_freq = amdgpu_asic_get_xclk(adev);
tach_period = 60 * crystal_clock_freq * 10000 / (8 * speed);
WREG32_SOC15(THM, 0, regCG_TACH_CTRL,
REG_SET_FIELD(RREG32_SOC15(THM, 0, regCG_TACH_CTRL),