Some SPI controllers (e.g. Intel ICH) have a limit on the number of SPI bytes that can be written at a time. Add this as a parameter so that clients of the SPI interface can respect this value.
Signed-off-by: Simon Glass sjg@chromium.org --- include/spi.h | 3 +++ 1 files changed, 3 insertions(+), 0 deletions(-)
diff --git a/include/spi.h b/include/spi.h index ebc9652..3fe2e1e 100644 --- a/include/spi.h +++ b/include/spi.h @@ -49,10 +49,13 @@ * * bus: ID of the bus that the slave is attached to. * cs: ID of the chip select connected to the slave. + * max_write_size: If non-zero, the maximum number of bytes which can + * be written at once, excluding command bytes. */ struct spi_slave { unsigned int bus; unsigned int cs; + unsigned int max_write_size; };
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