From c98f6fed93ca49a956d628200b2dfa1454ce6fbb Mon Sep 17 00:00:00 2001 From: Paul Barker Date: Wed, 5 Oct 2022 13:18:34 +0100 Subject: 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 Reviewed-by: Heinrich Schuchardt --- include/spi.h | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) (limited to 'include') diff --git a/include/spi.h b/include/spi.h index 9a8c1fb260e..1bc18e65525 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. -- cgit v1.2.3