/* SPDX-License-Identifier: GPL-2.0-or-later */
/*
 * Copyright (C) 2005 Stephen Street / StreetFire Sound Labs
 */
#ifndef __LINUX_SPI_PXA2XX_SPI_H
#define __LINUX_SPI_PXA2XX_SPI_H

#include <linux/types.h>

#include <linux/pxa2xx_ssp.h>

struct dma_chan;

/*
 * The platform data for SSP controller devices
 * (resides in device.platform_data).
 */
struct pxa2xx_spi_controller {
    u16 num_chipselect;
    u8 enable_dma;
    u8 dma_burst_size;
    bool is_slave;

    /* DMA engine specific config */
    bool (*dma_filter)(struct dma_chan *chan, void *param);
    void *tx_param;
    void *rx_param;

    /* For non-PXA arches */
    struct ssp_device ssp;
};

/*
 * The controller specific data for SPI slave devices
 * (resides in spi_board_info.controller_data),
 * copied to spi_device.platform_data ... mostly for
 * DMA tuning.
 */
struct pxa2xx_spi_chip {
    u8 tx_threshold;
    u8 tx_hi_threshold;
    u8 rx_threshold;
    u8 dma_burst_size;
    u32 timeout;
};

#if defined(CONFIG_ARCH_PXA) || defined(CONFIG_ARCH_MMP)

#include <linux/clk.h>

extern void pxa2xx_set_spi_info(unsigned id, struct pxa2xx_spi_controller *info);

#endif

#endif    /* __LINUX_SPI_PXA2XX_SPI_H */