rockchip: pinctrl: rk322x: Move the iomux definitions into pinctrl-driver

[oweals/u-boot.git] / doc / device-tree-bindings / spi / spi-bus.txt

diff --git a/doc/device-tree-bindings/spi/spi-bus.txt b/doc/device-tree-bindings/spi/spi-bus.txt
index 800dafe5b01b1b6cc0e6c8f4fcd6d9432c9d699f..420ec9529fb4414c646d640ec264e3c710a097e2 100644 (file)
--- a/doc/device-tree-bindings/spi/spi-bus.txt
+++ b/doc/device-tree-bindings/spi/spi-bus.txt
@@ -59,9 +59,11 @@ contain the following properties.
                       used for MOSI. Defaults to 1 if not present.
 - spi-rx-bus-width - (optional) The bus width(number of data wires) that
                       used for MISO. Defaults to 1 if not present.
+- spi-half-duplex  - (optional) Indicates that the SPI bus should wait for
+                     a header byte before reading data from the slave.
 
 Some SPI controllers and devices support Dual and Quad SPI transfer mode.
-It allows data in SPI system transfered in 2 wires(DUAL) or 4 wires(QUAD).
+It allows data in SPI system transferred in 2 wires(DUAL) or 4 wires(QUAD).
 Now the value that spi-tx-bus-width and spi-rx-bus-width can receive is
 only 1(SINGLE), 2(DUAL) and 4(QUAD).
 Dual/Quad mode is not allowed when 3-wire mode is used.