From 60e2809a848bccd3a8090d3f2237964670f2780c Mon Sep 17 00:00:00 2001 From: Simon Glass Date: Tue, 17 Feb 2015 15:29:35 -0700 Subject: dm: spi: Avoid setting the speed with every transfer Only set the speed if it has changed from last time. Since the speed will be 0 when the device is probed it will always be changed on the first transfer after the device is probed. Signed-off-by: Simon Glass --- include/spi.h | 3 +++ 1 file changed, 3 insertions(+) (limited to 'include/spi.h') diff --git a/include/spi.h b/include/spi.h index 9495ca5..3f198f8 100644 --- a/include/spi.h +++ b/include/spi.h @@ -100,6 +100,8 @@ struct dm_spi_slave_platdata { * @dev: SPI slave device * @max_hz: Maximum speed for this slave * @mode: SPI mode to use for this slave (see SPI mode flags) + * @speed: Current bus speed. This is 0 until the bus is first + * claimed. * @bus: ID of the bus that the slave is attached to. For * driver model this is the sequence number of the SPI * bus (bus->seq) so does not need to be stored @@ -117,6 +119,7 @@ struct spi_slave { #ifdef CONFIG_DM_SPI struct udevice *dev; /* struct spi_slave is dev->parentdata */ uint max_hz; + uint speed; uint mode; #else unsigned int bus; -- cgit v1.1