LXR linux/drivers/spi/spi-fsl-cpm.h

   1/* SPDX-License-Identifier: GPL-2.0-or-later */
   2/*
   3 * Freescale SPI controller driver cpm functions.
   4 *
   5 * Maintainer: Kumar Gala
   6 *
   7 * Copyright (C) 2006 Polycom, Inc.
   8 * Copyright 2010 Freescale Semiconductor, Inc.
   9 *
  10 * CPM SPI and QE buffer descriptors mode support:
  11 * Copyright (c) 2009  MontaVista Software, Inc.
  12 * Author: Anton Vorontsov <avorontsov@ru.mvista.com>
  13 */
  14
  15#ifndef __SPI_FSL_CPM_H__
  16#define __SPI_FSL_CPM_H__
  17
  18#include "spi-fsl-lib.h"
  19
  20#ifdef CONFIG_FSL_SOC
  21extern void fsl_spi_cpm_reinit_txrx(struct mpc8xxx_spi *mspi);
  22extern int fsl_spi_cpm_bufs(struct mpc8xxx_spi *mspi,
  23                            struct spi_transfer *t, bool is_dma_mapped);
  24extern void fsl_spi_cpm_bufs_complete(struct mpc8xxx_spi *mspi);
  25extern void fsl_spi_cpm_irq(struct mpc8xxx_spi *mspi, u32 events);
  26extern int fsl_spi_cpm_init(struct mpc8xxx_spi *mspi);
  27extern void fsl_spi_cpm_free(struct mpc8xxx_spi *mspi);
  28#else
  29static inline void fsl_spi_cpm_reinit_txrx(struct mpc8xxx_spi *mspi) { }
  30static inline int fsl_spi_cpm_bufs(struct mpc8xxx_spi *mspi,
  31                                   struct spi_transfer *t,
  32                                   bool is_dma_mapped) { return 0; }
  33static inline void fsl_spi_cpm_bufs_complete(struct mpc8xxx_spi *mspi) { }
  34static inline void fsl_spi_cpm_irq(struct mpc8xxx_spi *mspi, u32 events) { }
  35static inline int fsl_spi_cpm_init(struct mpc8xxx_spi *mspi) { return 0; }
  36static inline void fsl_spi_cpm_free(struct mpc8xxx_spi *mspi) { }
  37#endif
  38
  39#endif /* __SPI_FSL_CPM_H__ */
  40