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spi: dw: remove unused dw_spi_chip handling

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The path of code using this struct is unused since there is no more user
of this. Remove code and struct definition.

Signed-off-by: Clement Leger <cleger@kalray.eu>
Link: https://lore.kernel.org/r/20200416110916.22633-1-cleger@kalray.eu
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Clement Leger 2020-04-16 13:09:15 +02:00 committed by Mark Brown
parent 896fa73508
commit ae9e6ac4d8
No known key found for this signature in database
GPG Key ID: 24D68B725D5487D0
2 changed files with 0 additions and 28 deletions
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16
drivers/spi/spi-dw.c
View File

@ -399,7 +399,6 @@ static void dw_spi_handle_err(struct spi_controller *master,
/* This may be called twice for each spi dev */
static int dw_spi_setup(struct spi_device *spi)
{
struct dw_spi_chip *chip_info = NULL;
struct chip_data *chip;
/* Only alloc on first setup */
@ -411,21 +410,6 @@ static int dw_spi_setup(struct spi_device *spi)
spi_set_ctldata(spi, chip);
}
/*
* Protocol drivers may change the chip settings, so...
* if chip_info exists, use it
*/
chip_info = spi->controller_data;
/* chip_info doesn't always exist */
if (chip_info) {
if (chip_info->cs_control)
chip->cs_control = chip_info->cs_control;
chip->poll_mode = chip_info->poll_mode;
chip->type = chip_info->type;
}
chip->tmode = SPI_TMOD_TR;
return 0;

12
drivers/spi/spi-dw.h
View File

@ -235,18 +235,6 @@ static inline void spi_shutdown_chip(struct dw_spi *dws)
spi_set_clk(dws, 0);
}
/*
* Each SPI slave device to work with dw_api controller should
* has such a structure claiming its working mode (poll or PIO/DMA),
* which can be save in the "controller_data" member of the
* struct spi_device.
*/
struct dw_spi_chip {
u8 poll_mode; /* 1 for controller polling mode */
u8 type; /* SPI/SSP/MicroWire */
void (*cs_control)(u32 command);
};
extern void dw_spi_set_cs(struct spi_device *spi, bool enable);
extern int dw_spi_add_host(struct device *dev, struct dw_spi *dws);
extern void dw_spi_remove_host(struct dw_spi *dws);