4.18-stable review patch. If anyone has any objections, please let me know. ------------------ From: Rex Zhu <rex.zhu@xxxxxxx> commit 8a50bb47a863c3cb8950a2e810448c9a82a9d446 upstream. the voltage showed in debugfs and hwmon should be in mV Reviewed-by: Evan Quan <evan.quan@xxxxxxx> Acked-by: Alex Deucher <alexander.deucher@xxxxxxx> Signed-off-by: Rex Zhu <Rex.Zhu@xxxxxxx> Signed-off-by: Alex Deucher <alexander.deucher@xxxxxxx> Cc: stable@xxxxxxxxxxxxxxx Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> --- drivers/gpu/drm/amd/powerplay/hwmgr/smu8_hwmgr.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) --- 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( 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_hw 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: