blob: daf09931857cd9a9a58b2a59fd84a23ce675424a [file] [log] [blame]
* This file is part of STM32 DAC driver
* Copyright (C) 2017, STMicroelectronics - All Rights Reserved
* Author: Fabrice Gasnier <>.
* License type: GPLv2
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 as published by
* the Free Software Foundation.
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
* See the GNU General Public License for more details.
* You should have received a copy of the GNU General Public License along with
* this program. If not, see <>.
#ifndef __STM32_DAC_CORE_H
#define __STM32_DAC_CORE_H
#include <linux/regmap.h>
/* STM32 DAC registers */
#define STM32_DAC_CR 0x00
#define STM32_DAC_DHR12R1 0x08
#define STM32_DAC_DHR12R2 0x14
#define STM32_DAC_DOR1 0x2C
#define STM32_DAC_DOR2 0x30
/* STM32_DAC_CR bit fields */
#define STM32_DAC_CR_EN1 BIT(0)
#define STM32H7_DAC_CR_HFSEL BIT(15)
#define STM32_DAC_CR_EN2 BIT(16)
* struct stm32_dac_common - stm32 DAC driver common data (for all instances)
* @regmap: DAC registers shared via regmap
* @vref_mv: reference voltage (mv)
* @hfsel: high speed bus clock selected
struct stm32_dac_common {
struct regmap *regmap;
int vref_mv;
bool hfsel;