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| author | Paul Barker <paul.barker@sancloud.com> | 2022-10-05 13:18:34 +0100 |
|---|---|---|
| committer | Heinrich Schuchardt <heinrich.schuchardt@canonical.com> | 2022-10-16 12:23:22 +0200 |
| commit | c98f6fed93ca49a956d628200b2dfa1454ce6fbb (patch) | |
| tree | da69733fed050f319e35332aa052cfee314b1efc /include | |
| parent | 0e49f5c26caf9972137a474065afd4bdfe5ec062 (diff) | |
| download | u-boot-c98f6fed93ca49a956d628200b2dfa1454ce6fbb.zip u-boot-c98f6fed93ca49a956d628200b2dfa1454ce6fbb.tar.gz u-boot-c98f6fed93ca49a956d628200b2dfa1454ce6fbb.tar.bz2 | |
spi: Implement spi_set_speed
This function is already defined in spi.h but no implementation of it
currently exists in the tree. The implementation is based on the static
function spi_set_speed_mode(). The function prototype is modified so
that an success or error condition can be returned to the caller.
Signed-off-by: Paul Barker <paul.barker@sancloud.com>
Reviewed-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Diffstat (limited to 'include')
| -rw-r--r-- | include/spi.h | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/include/spi.h b/include/spi.h index 9a8c1fb..1bc18e6 100644 --- a/include/spi.h +++ b/include/spi.h @@ -352,8 +352,10 @@ void spi_cs_deactivate(struct spi_slave *slave); * This sets a new speed to be applied for next spi_xfer(). * @slave: The SPI slave * @hz: The transfer speed + * + * Returns: 0 on success, or a negative value on error. */ -void spi_set_speed(struct spi_slave *slave, uint hz); +int spi_set_speed(struct spi_slave *slave, uint hz); /** * Write 8 bits, then read 8 bits. |