drm/amdgpu: add I2C_CLASS_HWMON to SMU i2c buses

Not sure that this really matters that much, but these could
have various other hwmon chips on them.
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Luben Tuikov <luben.tuikov@amd.com>

drivers/gpu/drm/amd/amdgpu/smu_v11_0_i2c.c

@@ -665,7 +665,7 @@ int smu_v11_0_i2c_control_init(struct i2c_adapter *control)
 
 	mutex_init(&adev->pm.smu_i2c_mutex);
 	control->owner = THIS_MODULE;
-	control->class = I2C_CLASS_SPD;
+	control->class = I2C_CLASS_SPD | I2C_CLASS_HWMON;
 	control->dev.parent = &adev->pdev->dev;
 	control->algo = &smu_v11_0_i2c_algo;
 	snprintf(control->name, sizeof(control->name), "AMDGPU SMU");

drivers/gpu/drm/amd/pm/swsmu/smu11/arcturus_ppt.c

@@ -2033,7 +2033,7 @@ static int arcturus_i2c_control_init(struct smu_context *smu, struct i2c_adapter
 	int res;
 
 	control->owner = THIS_MODULE;
-	control->class = I2C_CLASS_SPD;
+	control->class = I2C_CLASS_SPD | I2C_CLASS_HWMON;
 	control->dev.parent = &adev->pdev->dev;
 	control->algo = &arcturus_i2c_algo;
 	snprintf(control->name, sizeof(control->name), "AMDGPU SMU");

drivers/gpu/drm/amd/pm/swsmu/smu11/navi10_ppt.c

@@ -2832,7 +2832,7 @@ static int navi10_i2c_control_init(struct smu_context *smu, struct i2c_adapter *
 	int res;
 
 	control->owner = THIS_MODULE;
-	control->class = I2C_CLASS_SPD;
+	control->class = I2C_CLASS_SPD | I2C_CLASS_HWMON;
 	control->dev.parent = &adev->pdev->dev;
 	control->algo = &navi10_i2c_algo;
 	snprintf(control->name, sizeof(control->name), "AMDGPU SMU");

drivers/gpu/drm/amd/pm/swsmu/smu11/sienna_cichlid_ppt.c

@@ -3539,7 +3539,7 @@ static int sienna_cichlid_i2c_control_init(struct smu_context *smu, struct i2c_a
 	int res;
 
 	control->owner = THIS_MODULE;
-	control->class = I2C_CLASS_SPD;
+	control->class = I2C_CLASS_SPD | I2C_CLASS_HWMON;
 	control->dev.parent = &adev->pdev->dev;
 	control->algo = &sienna_cichlid_i2c_algo;
 	snprintf(control->name, sizeof(control->name), "AMDGPU SMU");