diff options
Diffstat (limited to 'Documentation/devicetree/bindings/spi/qcom,spi-qup.txt')
| -rw-r--r-- | Documentation/devicetree/bindings/spi/qcom,spi-qup.txt | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/spi/qcom,spi-qup.txt b/Documentation/devicetree/bindings/spi/qcom,spi-qup.txt index b82a268f1bd4..bee6ff204baf 100644 --- a/Documentation/devicetree/bindings/spi/qcom,spi-qup.txt +++ b/Documentation/devicetree/bindings/spi/qcom,spi-qup.txt | |||
| @@ -23,6 +23,12 @@ Optional properties: | |||
| 23 | - spi-max-frequency: Specifies maximum SPI clock frequency, | 23 | - spi-max-frequency: Specifies maximum SPI clock frequency, |
| 24 | Units - Hz. Definition as per | 24 | Units - Hz. Definition as per |
| 25 | Documentation/devicetree/bindings/spi/spi-bus.txt | 25 | Documentation/devicetree/bindings/spi/spi-bus.txt |
| 26 | - num-cs: total number of chipselects | ||
| 27 | - cs-gpios: should specify GPIOs used for chipselects. | ||
| 28 | The gpios will be referred to as reg = <index> in the SPI child | ||
| 29 | nodes. If unspecified, a single SPI device without a chip | ||
| 30 | select can be used. | ||
| 31 | |||
| 26 | 32 | ||
| 27 | SPI slave nodes must be children of the SPI master node and can contain | 33 | SPI slave nodes must be children of the SPI master node and can contain |
| 28 | properties described in Documentation/devicetree/bindings/spi/spi-bus.txt | 34 | properties described in Documentation/devicetree/bindings/spi/spi-bus.txt |