xref: /openbmc/linux/drivers/spi/spi-fsl-cpm.h (revision 2874c5fd)
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
21 extern void fsl_spi_cpm_reinit_txrx(struct mpc8xxx_spi *mspi);
22 extern int fsl_spi_cpm_bufs(struct mpc8xxx_spi *mspi,
23 			    struct spi_transfer *t, bool is_dma_mapped);
24 extern void fsl_spi_cpm_bufs_complete(struct mpc8xxx_spi *mspi);
25 extern void fsl_spi_cpm_irq(struct mpc8xxx_spi *mspi, u32 events);
26 extern int fsl_spi_cpm_init(struct mpc8xxx_spi *mspi);
27 extern void fsl_spi_cpm_free(struct mpc8xxx_spi *mspi);
28 #else
fsl_spi_cpm_reinit_txrx(struct mpc8xxx_spi * mspi)29 static inline void fsl_spi_cpm_reinit_txrx(struct mpc8xxx_spi *mspi) { }
fsl_spi_cpm_bufs(struct mpc8xxx_spi * mspi,struct spi_transfer * t,bool is_dma_mapped)30 static inline int fsl_spi_cpm_bufs(struct mpc8xxx_spi *mspi,
31 				   struct spi_transfer *t,
32 				   bool is_dma_mapped) { return 0; }
fsl_spi_cpm_bufs_complete(struct mpc8xxx_spi * mspi)33 static inline void fsl_spi_cpm_bufs_complete(struct mpc8xxx_spi *mspi) { }
fsl_spi_cpm_irq(struct mpc8xxx_spi * mspi,u32 events)34 static inline void fsl_spi_cpm_irq(struct mpc8xxx_spi *mspi, u32 events) { }
fsl_spi_cpm_init(struct mpc8xxx_spi * mspi)35 static inline int fsl_spi_cpm_init(struct mpc8xxx_spi *mspi) { return 0; }
fsl_spi_cpm_free(struct mpc8xxx_spi * mspi)36 static inline void fsl_spi_cpm_free(struct mpc8xxx_spi *mspi) { }
37 #endif
38 
39 #endif /* __SPI_FSL_CPM_H__ */
40