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authorSascha Hauer <s.hauer@pengutronix.de>2015-07-08 14:44:21 +0200
committerSascha Hauer <s.hauer@pengutronix.de>2015-07-08 14:44:21 +0200
commit87360e3dd42bb627a9f2611f961728c0789e1c21 (patch)
treeafefc88c862d9feafb0cdb075badeb8d32d8efd2 /dts/Bindings/mfd/cros-ec.txt
parent80936d6aaeea1b10ce4eb81c54eece2f55f8e209 (diff)
downloadbarebox-87360e3dd42bb627a9f2611f961728c0789e1c21.tar.gz
barebox-87360e3dd42bb627a9f2611f961728c0789e1c21.tar.xz
dts: update to v4.2-rc1
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Diffstat (limited to 'dts/Bindings/mfd/cros-ec.txt')
-rw-r--r--dts/Bindings/mfd/cros-ec.txt4
1 files changed, 4 insertions, 0 deletions
diff --git a/dts/Bindings/mfd/cros-ec.txt b/dts/Bindings/mfd/cros-ec.txt
index 8009c3d87..1777916e9 100644
--- a/dts/Bindings/mfd/cros-ec.txt
+++ b/dts/Bindings/mfd/cros-ec.txt
@@ -18,6 +18,10 @@ Required properties (SPI):
- reg: SPI chip select
Optional properties (SPI):
+- google,cros-ec-spi-pre-delay: Some implementations of the EC need a little
+ time to wake up from sleep before they can receive SPI transfers at a high
+ clock rate. This property specifies the delay, in usecs, between the
+ assertion of the CS to the start of the first clock pulse.
- google,cros-ec-spi-msg-delay: Some implementations of the EC require some
additional processing time in order to accept new transactions. If the delay
between transactions is not long enough the EC may not be able to respond