zircon/system/dev/thermal/aml-thermal-s905d2g/aml-voltage.h

// Copyright 2018 The Fuchsia Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#pragma once

#include "aml-pwm.h"
#include <fbl/unique_ptr.h>
#include <soc/aml-common/aml-thermal.h>

namespace thermal {
// This class represents a voltage regulator
// on the Amlogic board which provides interface
// to set and get current voltage for the CPU.
class AmlVoltageRegulator {
 public:
  DISALLOW_COPY_AND_ASSIGN_ALLOW_MOVE(AmlVoltageRegulator);
  AmlVoltageRegulator() {}
  zx_status_t Init(zx_device_t* parent, aml_opp_info_t* opp_info);
  uint32_t GetVoltage();
  zx_status_t SetVoltage(uint32_t microvolt);

 private:
  fbl::unique_ptr<thermal::AmlPwm> pwm_;
  aml_opp_info_t opp_info_;
  int current_voltage_index_;
};
}  // namespace thermal