linux/drivers/i2c/busses/i2c-stm32.c

// SPDX-License-Identifier: GPL-2.0-only
/*
 * i2c-stm32.c
 *
 * Copyright (C) M'boumba Cedric Madianga 2017
 * Author: M'boumba Cedric Madianga <[email protected]>
 */

#include "i2c-stm32.h"

/* Functions for DMA support */
struct stm32_i2c_dma *stm32_i2c_dma_request(struct device *dev,
					    dma_addr_t phy_addr,
					    u32 txdr_offset,
					    u32 rxdr_offset)
{ … }

void stm32_i2c_dma_free(struct stm32_i2c_dma *dma)
{ … }

int stm32_i2c_prep_dma_xfer(struct device *dev, struct stm32_i2c_dma *dma,
			    bool rd_wr, u32 len, u8 *buf,
			    dma_async_tx_callback callback,
			    void *dma_async_param)
{ … }