[U-Boot] [PATCH V2 3/6] spi: define SPI_XFER_ONCE

Nikita Kiryanov
2013-10-16T14:23:26Z

The flag combination "SPI_XFER_BEGIN | SPI_XFER_END" is a common use
case of spi_xfer, and it can easily cause an already long line (spi_xfer
takes 5 parameters) to go over the 80 character limit.

define SPI_XFER_ONCE to be a shorter version of the above flag combination.

Cc: Tom Rini <trini@ti.com>
Cc: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com>
Cc: Igor Grinberg <grinberg@compulab.co.il>
Signed-off-by: Nikita Kiryanov <nikita@compulab.co.il>
---
NOTE: This is a new patch. Its contents were originally part of "lcd: add
DataImage SCF0403x LCD panel support". Split because it is unrelated to
the patch it was originally in. (Igor Grinberg)

include/spi.h | 1 +
1 file changed, 1 insertion(+)

diff --git a/include/spi.h b/include/spi.h
index 67da75c..e2563c9 100644
--- a/include/spi.h
+++ b/include/spi.h
@@ -29,6 +29,7 @@
#define SPI_XFER_END 0x02 /* Deassert CS after transfer */
#define SPI_XFER_MMAP 0x08 /* Memory Mapped start */
#define SPI_XFER_MMAP_END 0x10 /* Memory Mapped End */
+#define SPI_XFER_ONCE (SPI_XFER_BEGIN | SPI_XFER_END)

/* Header byte that marks the start of the message */
#define SPI_PREAMBLE_END_BYTE 0xec
--
1.8.1.2