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| author | Rex Zhu <rex.zhu@amd.com> | 2018-07-25 11:45:03 +0800 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2018-07-31 16:58:06 -0500 |
| commit | 8a50bb47a863c3cb8950a2e810448c9a82a9d446 (patch) | |
| tree | 31e4b45947ef62f688f8abf78b0f57c272be8151 | |
| parent | 90983631a6486f68c1e95bf30713a179ac0a083f (diff) | |
| download | linux-8a50bb47a863c3cb8950a2e810448c9a82a9d446.tar.bz2 | |
drm/amd/pp: Convert voltage unit in mV*4 to mV on CZ/ST
the voltage showed in debugfs and hwmon should be in mV
Reviewed-by: Evan Quan <evan.quan@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Rex Zhu <Rex.Zhu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
| -rw-r--r-- | drivers/gpu/drm/amd/powerplay/hwmgr/smu8_hwmgr.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/drivers/gpu/drm/amd/powerplay/hwmgr/smu8_hwmgr.c b/drivers/gpu/drm/amd/powerplay/hwmgr/smu8_hwmgr.c index 288802f209dd..0adfc5392cd3 100644 --- a/drivers/gpu/drm/amd/powerplay/hwmgr/smu8_hwmgr.c +++ b/drivers/gpu/drm/amd/powerplay/hwmgr/smu8_hwmgr.c @@ -244,6 +244,7 @@ static int smu8_initialize_dpm_defaults(struct pp_hwmgr *hwmgr) return 0; } +/* convert form 8bit vid to real voltage in mV*4 */ static uint32_t smu8_convert_8Bit_index_to_voltage( struct pp_hwmgr *hwmgr, uint16_t voltage) { @@ -1702,13 +1703,13 @@ static int smu8_read_sensor(struct pp_hwmgr *hwmgr, int idx, case AMDGPU_PP_SENSOR_VDDNB: tmp = (cgs_read_ind_register(hwmgr->device, CGS_IND_REG__SMC, ixSMUSVI_NB_CURRENTVID) & CURRENT_NB_VID_MASK) >> CURRENT_NB_VID__SHIFT; - vddnb = smu8_convert_8Bit_index_to_voltage(hwmgr, tmp); + vddnb = smu8_convert_8Bit_index_to_voltage(hwmgr, tmp) / 4; *((uint32_t *)value) = vddnb; return 0; case AMDGPU_PP_SENSOR_VDDGFX: tmp = (cgs_read_ind_register(hwmgr->device, CGS_IND_REG__SMC, ixSMUSVI_GFX_CURRENTVID) & CURRENT_GFX_VID_MASK) >> CURRENT_GFX_VID__SHIFT; - vddgfx = smu8_convert_8Bit_index_to_voltage(hwmgr, (u16)tmp); + vddgfx = smu8_convert_8Bit_index_to_voltage(hwmgr, (u16)tmp) / 4; *((uint32_t *)value) = vddgfx; return 0; case AMDGPU_PP_SENSOR_UVD_VCLK: |