X-Git-Url: http://review.tizen.org/git/?a=blobdiff_plain;f=include%2Fspi.h;h=60e85db9a46e052c97b638c58bb93114a378e3b7;hb=10d1a160f5e28b05f891c050ca2f23855b226f5f;hp=7744c2e36b057c02e9d22be42be6a6dd6a1f330d;hpb=1730edf76c54381475e2da11f75b1ce563c4e62c;p=platform%2Fkernel%2Fu-boot.git

diff --git a/include/spi.h b/include/spi.h
index 7744c2e..60e85db 100644
--- a/include/spi.h
+++ b/include/spi.h
@@ -24,6 +24,8 @@
 #ifndef _SPI_H_
 #define _SPI_H_
 
+/* Controller-specific definitions: */
+
 /* SPI mode flags */
 #define	SPI_CPHA	0x01			/* clock phase */
 #define	SPI_CPOL	0x02			/* clock polarity */
@@ -167,6 +169,14 @@ void spi_cs_activate(struct spi_slave *slave);
 void spi_cs_deactivate(struct spi_slave *slave);
 
 /*-----------------------------------------------------------------------
+ * Set transfer speed.
+ * This sets a new speed to be applied for next spi_xfer().
+ *   slave:	The SPI slave
+ *   hz:	The transfer speed
+ */
+void spi_set_speed(struct spi_slave *slave, uint hz);
+
+/*-----------------------------------------------------------------------
  * Write 8 bits, then read 8 bits.
  *   slave:	The SPI slave we're communicating with
  *   byte:	Byte to be written