mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-08-23 01:10:04 +00:00
![Andy Shevchenko](/assets/img/avatar_default.png)
There is no user of the enable_loopback member in the struct pxa2xx_spi_chip. Remote this legacy member completely. The mentioned in the documentation the testing phase can be performed with spidev_test tool. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Link: https://lore.kernel.org/r/20211123192723.44537-3-andriy.shevchenko@linux.intel.com Signed-off-by: Mark Brown <broonie@kernel.org>
56 lines
1.1 KiB
C
56 lines
1.1 KiB
C
/* 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;
|
|
int gpio_cs;
|
|
};
|
|
|
|
#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 */
|