drm/amd/powerplay: fix fan speed show error (for hwmon pwm)

the navi asic can't get current rpm by MSG_GetCurrentRpm,
it will cause show fan rpm error, use Metrics_t to replace it.

Signed-off-by: Kevin Wang <kevin1.wang@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

diff --git a/drivers/gpu/drm/amd/powerplay/navi10_ppt.c b/drivers/gpu/drm/amd/powerplay/navi10_ppt.c
index 2d43e3d..953209b 100644 (file)
--- a/drivers/gpu/drm/amd/powerplay/navi10_ppt.c
+++ b/drivers/gpu/drm/amd/powerplay/navi10_ppt.c
@@ -885,15 +885,33 @@ static bool navi10_is_dpm_running(struct smu_context *smu)
        return !!(feature_enabled & SMC_DPM_FEATURE);
 }
 
+static int navi10_get_fan_speed(struct smu_context *smu, uint16_t *value)
+{
+       SmuMetrics_t metrics = {0};
+       int ret = 0;
+
+       if (!value)
+               return -EINVAL;
+
+       ret = smu_update_table(smu, SMU_TABLE_SMU_METRICS,
+                              (void *)&metrics, false);
+       if (ret)
+               return ret;
+
+       *value = metrics.CurrFanSpeed;
+
+       return ret;
+}
+
 static int navi10_get_fan_speed_percent(struct smu_context *smu,
                                        uint32_t *speed)
 {
        int ret = 0;
        uint32_t percent = 0;
-       uint32_t current_rpm;
+       uint16_t current_rpm;
        PPTable_t *pptable = smu->smu_table.driver_pptable;
 
-       ret = smu_get_current_rpm(smu, &current_rpm);
+       ret = navi10_get_fan_speed(smu, &current_rpm);
        if (ret)
                return ret;