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spi: Get rid of the spi_flash_read() API

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This API has been replaced by the spi_mem_xx() one, its only user
(spi-nor) has been converted to spi_mem_xx() and all SPI controller
drivers that were implementing the ->spi_flash_xxx() hooks are also
implementing the spi_mem ones. So we can safely get rid of this API.

Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com>
Reviewed-by: Frieder Schrempf <frieder.schrempf@exceet.de>
Tested-by: Frieder Schrempf <frieder.schrempf@exceet.de>
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Boris Brezillon
2018-04-26 18:18:20 +02:00
committed by Mark Brown
parent 4120f8d158
commit c1f5ba70de
3 changed files with 0 additions and 151 deletions
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53
include/linux/spi/spi.h
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@@ -26,7 +26,6 @@ struct dma_chan;
struct property_entry;
struct spi_controller;
struct spi_transfer;
struct spi_flash_read_message;
struct spi_controller_mem_ops;
/*
@@ -382,11 +381,6 @@ static inline void spi_unregister_driver(struct spi_driver *sdrv)
* controller has native support for memory like operations.
* @unprepare_message: undo any work done by prepare_message().
* @slave_abort: abort the ongoing transfer request on an SPI slave controller
* @spi_flash_read: to support spi-controller hardwares that provide
* accelerated interface to read from flash devices.
* @spi_flash_can_dma: analogous to can_dma() interface, but for
* controllers implementing spi_flash_read.
* @flash_read_supported: spi device supports flash read
* @cs_gpios: Array of GPIOs to use as chip select lines; one per CS
* number. Any individual value may be -ENOENT for CS lines that
* are not GPIOs (driven by the SPI controller itself).
@@ -552,11 +546,6 @@ struct spi_controller {
int (*unprepare_message)(struct spi_controller *ctlr,
struct spi_message *message);
int (*slave_abort)(struct spi_controller *ctlr);
int (*spi_flash_read)(struct spi_device *spi,
struct spi_flash_read_message *msg);
bool (*spi_flash_can_dma)(struct spi_device *spi,
struct spi_flash_read_message *msg);
bool (*flash_read_supported)(struct spi_device *spi);
/*
* These hooks are for drivers that use a generic implementation
@@ -1190,48 +1179,6 @@ static inline ssize_t spi_w8r16be(struct spi_device *spi, u8 cmd)
return be16_to_cpu(result);
}
/**
* struct spi_flash_read_message - flash specific information for
* spi-masters that provide accelerated flash read interfaces
* @buf: buffer to read data
* @from: offset within the flash from where data is to be read
* @len: length of data to be read
* @retlen: actual length of data read
* @read_opcode: read_opcode to be used to communicate with flash
* @addr_width: number of address bytes
* @dummy_bytes: number of dummy bytes
* @opcode_nbits: number of lines to send opcode
* @addr_nbits: number of lines to send address
* @data_nbits: number of lines for data
* @rx_sg: Scatterlist for receive data read from flash
* @cur_msg_mapped: message has been mapped for DMA
*/
struct spi_flash_read_message {
void *buf;
loff_t from;
size_t len;
size_t retlen;
u8 read_opcode;
u8 addr_width;
u8 dummy_bytes;
u8 opcode_nbits;
u8 addr_nbits;
u8 data_nbits;
struct sg_table rx_sg;
bool cur_msg_mapped;
};
/* SPI core interface for flash read support */
static inline bool spi_flash_read_supported(struct spi_device *spi)
{
return spi->controller->spi_flash_read &&
(!spi->controller->flash_read_supported ||
spi->controller->flash_read_supported(spi));
}
int spi_flash_read(struct spi_device *spi,
struct spi_flash_read_message *msg);
/*---------------------------------------------------------------------------*/
/*