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spi: dw: export dw_spi_set_cs

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Export dw_spi_set_cs so it can be used from the various IP integration
modules.

Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Alexandre Belloni
2018-07-27 21:53:54 +02:00
committed by Mark Brown
parent 516ddd7906
commit c79bdbb490
2 changed files with 3 additions and 1 deletions
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drivers/spi/spi-dw.c
+2 -1
View File
@@ -133,7 +133,7 @@ static inline void dw_spi_debugfs_remove(struct dw_spi *dws)
} }
#endif /* CONFIG_DEBUG_FS */ #endif /* CONFIG_DEBUG_FS */
static void dw_spi_set_cs(struct spi_device *spi, bool enable) void dw_spi_set_cs(struct spi_device *spi, bool enable)
{ {
struct dw_spi *dws = spi_controller_get_devdata(spi->controller); struct dw_spi *dws = spi_controller_get_devdata(spi->controller);
struct chip_data *chip = spi_get_ctldata(spi); struct chip_data *chip = spi_get_ctldata(spi);
@@ -145,6 +145,7 @@ static void dw_spi_set_cs(struct spi_device *spi, bool enable)
if (!enable) if (!enable)
dw_writel(dws, DW_SPI_SER, BIT(spi->chip_select)); dw_writel(dws, DW_SPI_SER, BIT(spi->chip_select));
} }
EXPORT_SYMBOL_GPL(dw_spi_set_cs);
/* Return the max entries we can fill into tx fifo */ /* Return the max entries we can fill into tx fifo */
static inline u32 tx_max(struct dw_spi *dws) static inline u32 tx_max(struct dw_spi *dws)
drivers/spi/spi-dw.h
+1
View File
@@ -245,6 +245,7 @@ struct dw_spi_chip {
void (*cs_control)(u32 command); 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 int dw_spi_add_host(struct device *dev, struct dw_spi *dws);
extern void dw_spi_remove_host(struct dw_spi *dws); extern void dw_spi_remove_host(struct dw_spi *dws);
extern int dw_spi_suspend_host(struct dw_spi *dws); extern int dw_spi_suspend_host(struct dw_spi *dws);