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 <s...@chromium.org>
---
Changes in v2: None
include/spi.h | 3 +++
1 file changed, 3 insertions(+)
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;
};
/*-----------------------------------------------------------------------
--
1.8.1.3
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