drivers/iio/dac/stm32-dac-core.h

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 /*
   3  * This file is part of STM32 DAC driver
   4  *
   5  * Copyright (C) 2017, STMicroelectronics - All Rights Reserved
   6  * Author: Fabrice Gasnier <fabrice.gasnier@st.com>.
   7  */
   8
   9 #ifndef __STM32_DAC_CORE_H
  10 #define __STM32_DAC_CORE_H
  11
  12 #include <linux/regmap.h>
  13
  14 /* STM32 DAC registers */
  15 #define STM32_DAC_CR            0x00
  16 #define STM32_DAC_DHR12R1       0x08
  17 #define STM32_DAC_DHR12R2       0x14
  18 #define STM32_DAC_DOR1          0x2C
  19 #define STM32_DAC_DOR2          0x30
  20
  21 /* STM32_DAC_CR bit fields */
  22 #define STM32_DAC_CR_EN1                BIT(0)
  23 #define STM32H7_DAC_CR_HFSEL            BIT(15)
  24 #define STM32_DAC_CR_EN2                BIT(16)
  25
  26 /**
  27  * struct stm32_dac_common - stm32 DAC driver common data (for all instances)
  28  * @regmap: DAC registers shared via regmap
  29  * @vref_mv: reference voltage (mv)
  30  * @hfsel: high speed bus clock selected
  31  */
  32 struct stm32_dac_common {
  33         struct regmap                   *regmap;
  34         int                             vref_mv;
  35         bool                            hfsel;
  36 };
  37
  38 #endif