diff options
| author | William Zhang <william.zhang@broadcom.com> | 2023-02-09 12:02:39 -0800 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2023-02-10 21:36:39 +0000 |
| commit | 6e80133abeb09721ec4601de5b1e68be67135309 (patch) | |
| tree | b64dd9f28d3b04f3c263466f0004fd76340f0690 /include/linux/spi/spi.h | |
| parent | 2ea9b08a661274b9b7b182327bf6ffe29605d671 (diff) | |
spi: export spi_transfer_cs_change_delay_exec function
For SPI controller that implements transfer_one_message, it needs to
insert the delay that required by cs change event between the transfers.
Add a wrapper for the local function _spi_transfer_cs_change_delay_exec
and export it for SPI controller driver to use.
Signed-off-by: William Zhang <william.zhang@broadcom.com>
Link: https://lore.kernel.org/r/20230209200246.141520-9-william.zhang@broadcom.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'include/linux/spi/spi.h')
| -rw-r--r-- | include/linux/spi/spi.h | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/include/linux/spi/spi.h b/include/linux/spi/spi.h index 9b23a1d0dd0d..88cb2a1390ce 100644 --- a/include/linux/spi/spi.h +++ b/include/linux/spi/spi.h @@ -26,6 +26,7 @@ struct spi_controller; struct spi_transfer; struct spi_controller_mem_ops; struct spi_controller_mem_caps; +struct spi_message; /* * INTERFACES between SPI master-side drivers and SPI slave protocol handlers, @@ -119,6 +120,8 @@ struct spi_delay { extern int spi_delay_to_ns(struct spi_delay *_delay, struct spi_transfer *xfer); extern int spi_delay_exec(struct spi_delay *_delay, struct spi_transfer *xfer); +extern void spi_transfer_cs_change_delay_exec(struct spi_message *msg, + struct spi_transfer *xfer); /** * struct spi_device - Controller side proxy for an SPI slave device @@ -283,8 +286,6 @@ static inline void spi_set_csgpiod(struct spi_device *spi, u8 idx, struct gpio_d spi->cs_gpiod = csgpiod; } -struct spi_message; - /** * struct spi_driver - Host side "protocol" driver * @id_table: List of SPI devices supported by this driver |