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