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| author | Andrew Duggan <aduggan@synaptics.com> | 2016-03-11 02:59:52 +0300 |
|---|---|---|
| committer | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2016-03-11 03:04:25 +0300 |
| commit | 48147b9768b83265bf2e1211bcadeca035011380 (patch) | |
| tree | 5af450151993e3e454ef1f5d2c2111a0f94d4110 /Documentation/devicetree/bindings/spi/spi-bus.txt | |
| parent | 8d99758dee31ff4a72bfc35d3a7a51fe66b7bb91 (diff) | |
| download | linux-48147b9768b83265bf2e1211bcadeca035011380.tar.xz | |
Input: synaptics-rmi4 - add device tree support to the SPI transport driver
Add devicetree binding for SPI devices.
Signed-off-by: Andrew Duggan <aduggan@synaptics.com>
Acked-by: Rob Herring <robh@kernel.org>
Tested-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Tested-by: Linus Walleij <linus.walleij@linaro.org>
Tested-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Diffstat (limited to 'Documentation/devicetree/bindings/spi/spi-bus.txt')
| -rw-r--r-- | Documentation/devicetree/bindings/spi/spi-bus.txt | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/spi/spi-bus.txt b/Documentation/devicetree/bindings/spi/spi-bus.txt index bbaa857dd68f..42d595425dfb 100644 --- a/Documentation/devicetree/bindings/spi/spi-bus.txt +++ b/Documentation/devicetree/bindings/spi/spi-bus.txt @@ -61,6 +61,8 @@ 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-rx-delay-us - (optional) Microsecond delay after a read transfer. +- spi-tx-delay-us - (optional) Microsecond delay after a write transfer. Some SPI controllers and devices support Dual and Quad SPI transfer mode. It allows data in the SPI system to be transferred in 2 wires(DUAL) or 4 wires(QUAD). |