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| author | Leonard Göhrs <l.goehrs@pengutronix.de> | 2023-03-10 10:20:52 +0100 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2023-03-16 13:10:55 +0000 |
| commit | 027781f3920ad16f40133890fc87247b8baa2d8d (patch) | |
| tree | 460ff59f032b4c47ed062ad3bd6ae7f2fec253ec /include/linux/spi | |
| parent | 93d205457dcda137e73dbfdcaa6a3c4c3b6d505f (diff) | |
| download | linux-027781f3920ad16f40133890fc87247b8baa2d8d.tar.gz linux-027781f3920ad16f40133890fc87247b8baa2d8d.tar.bz2 linux-027781f3920ad16f40133890fc87247b8baa2d8d.zip | |
spi: core: add spi_split_transfers_maxwords
Add spi_split_transfers_maxwords() function that splits
spi_transfers transparently into multiple transfers
that are below a given number of SPI words.
This function reuses most of its code from
spi_split_transfers_maxsize() and for transfers with
eight or less bits per word actually behaves the same.
Signed-off-by: Leonard Göhrs <l.goehrs@pengutronix.de>
Link: https://lore.kernel.org/r/20230310092053.1006459-1-l.goehrs@pengutronix.de
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'include/linux/spi')
| -rw-r--r-- | include/linux/spi/spi.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/include/linux/spi/spi.h b/include/linux/spi/spi.h index 74bff5a2f53d..873ced6ae4ca 100644 --- a/include/linux/spi/spi.h +++ b/include/linux/spi/spi.h @@ -1295,6 +1295,10 @@ extern int spi_split_transfers_maxsize(struct spi_controller *ctlr, struct spi_message *msg, size_t maxsize, gfp_t gfp); +extern int spi_split_transfers_maxwords(struct spi_controller *ctlr, + struct spi_message *msg, + size_t maxwords, + gfp_t gfp); /*---------------------------------------------------------------------------*/ |