drm/amd/pm: Use devm_i2c_add_adapter() in the i2c init

Instead of using i2c_add_adapter() and i2c_del_adapter(), replace them
with devm_i2c_add_adapter() to simplify the i2c logic.

Signed-off-by: Rodrigo Siqueira <siqueira@igalia.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

Author: rodrigosiqueira

drivers/gpu/drm/amd/pm/swsmu/smu13/aldebaran_ppt.c

@@ -1641,33 +1641,22 @@ static int aldebaran_i2c_control_init(struct smu_context *smu)
 	control->quirks = &aldebaran_i2c_control_quirks;
 	i2c_set_adapdata(control, smu_i2c);
 
-	res = i2c_add_adapter(control);
+	res = devm_i2c_add_adapter(adev->dev, control);
 	if (res) {
 		DRM_ERROR("Failed to register hw i2c, err: %d\n", res);
-		goto Out_err;
+		return res;
 	}
 
 	adev->pm.ras_eeprom_i2c_bus = &adev->pm.smu_i2c[0].adapter;
 	adev->pm.fru_eeprom_i2c_bus = &adev->pm.smu_i2c[0].adapter;
 
 	return 0;
-Out_err:
-	i2c_del_adapter(control);
-
-	return res;
 }
 
 static void aldebaran_i2c_control_fini(struct smu_context *smu)
 {
 	struct amdgpu_device *adev = smu->adev;
-	int i;
-
-	for (i = 0; i < MAX_SMU_I2C_BUSES; i++) {
-		struct amdgpu_smu_i2c_bus *smu_i2c = &adev->pm.smu_i2c[i];
-		struct i2c_adapter *control = &smu_i2c->adapter;
 
-		i2c_del_adapter(control);
-	}
 	adev->pm.ras_eeprom_i2c_bus = NULL;
 	adev->pm.fru_eeprom_i2c_bus = NULL;
 }