From: Rex Zhu Date: Wed, 25 Jul 2018 03:45:03 +0000 (+0800) Subject: drm/amd/pp: Convert voltage unit in mV*4 to mV on CZ/ST X-Git-Tag: v4.18.8~39 X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=8ec9ca91819ff879323a00e2c0dba886c26926e3;p=thirdparty%2Fkernel%2Fstable.git drm/amd/pp: Convert voltage unit in mV*4 to mV on CZ/ST commit 8a50bb47a863c3cb8950a2e810448c9a82a9d446 upstream. the voltage showed in debugfs and hwmon should be in mV Reviewed-by: Evan Quan Acked-by: Alex Deucher Signed-off-by: Rex Zhu Signed-off-by: Alex Deucher Cc: stable@vger.kernel.org Signed-off-by: Greg Kroah-Hartman --- diff --git a/drivers/gpu/drm/amd/powerplay/hwmgr/smu8_hwmgr.c b/drivers/gpu/drm/amd/powerplay/hwmgr/smu8_hwmgr.c index 50690c72b2ea1..617557bd8c24e 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: