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authorEvan Quan <evan.quan@amd.com>2022-12-16 17:12:53 +0800
committerAlex Deucher <alexander.deucher@amd.com>2023-01-05 11:43:24 -0500
commitc595637f8a7c6bdef2ec16f6ee0f6cd727603223 (patch)
tree55cd3cf08b18c603a768407b0f437b2b2f13a67b
parentdrm/amd/display: Remove redundant logs from DSC code (diff)
downloadwireguard-linux-c595637f8a7c6bdef2ec16f6ee0f6cd727603223.tar.xz
wireguard-linux-c595637f8a7c6bdef2ec16f6ee0f6cd727603223.zip
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>
-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 0ac9cac805f9..8bc70ed7ed00 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),