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Subject[PATCH 1/2] spi: dw: remove unused dw_spi_chip handling
Date
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>
---
drivers/spi/spi-dw.c | 16 ----------------
drivers/spi/spi-dw.h | 12 ------------
2 files changed, 28 deletions(-)

diff --git a/drivers/spi/spi-dw.c b/drivers/spi/spi-dw.c
index 31e3f866d11a..fda8d433a769 100644
--- a/drivers/spi/spi-dw.c
+++ b/drivers/spi/spi-dw.c
@@ -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;
diff --git a/drivers/spi/spi-dw.h b/drivers/spi/spi-dw.h
index 1bf5713e047d..44ef18187c15 100644
--- a/drivers/spi/spi-dw.h
+++ b/drivers/spi/spi-dw.h
@@ -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);
--
2.17.1
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