mirror of https://gitee.com/openkylin/linux.git
52 lines
1.4 KiB
C
52 lines
1.4 KiB
C
/*
|
|
* This file is part of STM32 DAC driver
|
|
*
|
|
* Copyright (C) 2017, STMicroelectronics - All Rights Reserved
|
|
* Author: Fabrice Gasnier <fabrice.gasnier@st.com>.
|
|
*
|
|
* 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
|
|
* or FITNESS FOR A PARTICULAR PURPOSE.
|
|
* 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 <http://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
#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;
|
|
};
|
|
|
|
#endif
|