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/* SPDX-License-Identifier: GPL-2.0-only */
/*
* Copyright (C) 2018, STMicroelectronics - All Rights Reserved
* Author: Fabrice Gasnier <fabrice.gasnier@st.com>.
*
* Originally based on the Linux kernel v4.18 drivers/iio/adc/stm32-adc-core.h.
*/
#ifndef __STM32_ADC_H
#define __STM32_ADC_H
/*
* STM32 - ADC global register map
* ________________________________________________________
* | Offset | Register |
* --------------------------------------------------------
* | 0x000 | Master ADC1 |
* --------------------------------------------------------
* | 0x100 | Slave ADC2 |
* --------------------------------------------------------
* | 0x200 | Slave ADC3 |
* --------------------------------------------------------
* | 0x300 | Master & Slave common regs |
* --------------------------------------------------------
*/
#define STM32_ADC_MAX_ADCS 3
#define STM32_ADCX_COMN_OFFSET 0x300
#include <linux/types.h>
struct regulator;
struct clk;
/**
* struct stm32_adc_common - stm32 ADC driver common data (for all instances)
* @base: control registers base cpu addr
* @rate: clock rate used for analog circuitry
* @aclk: clock for the analog circuitry
* @bclk: bus clock common for all ADCs
* @vref: regulator reference
* @vref_uv: reference supply voltage (uV)
*/
struct stm32_adc_common {
void __iomem *base;
unsigned long rate;
struct clk *aclk;
struct clk *bclk;
struct regulator *vref;
int vref_uv;
};
#endif
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