diff options
Diffstat (limited to 'Documentation/devicetree/bindings/spi/qcom,spi-qup.txt')
| -rw-r--r-- | Documentation/devicetree/bindings/spi/qcom,spi-qup.txt | 19 |
1 files changed, 18 insertions, 1 deletions
diff --git a/Documentation/devicetree/bindings/spi/qcom,spi-qup.txt b/Documentation/devicetree/bindings/spi/qcom,spi-qup.txt index e2c88df2cc15..3befe88b7579 100644 --- a/Documentation/devicetree/bindings/spi/qcom,spi-qup.txt +++ b/Documentation/devicetree/bindings/spi/qcom,spi-qup.txt @@ -35,7 +35,24 @@ Optional properties: SPI slave nodes must be children of the SPI master node and can contain -properties described in Documentation/devicetree/bindings/spi/spi-bus.txt +the following properties. + +Required properties: +- compatible: Should contain: + "qcom,spi-msm-codec-slave" for external codec control + +- reg: Chip select address of device. + +- spi-max-frequency: Maximum SPI clocking speed of device in Hz. + +Optional properties: +- spi-cpol: Empty property indicating device requires + inverse clock polarity (CPOL) mode. +- spi-cpha: Empty property indicating device requires + shifted clock phase (CPHA) mode. + +Other optional properties described in +Documentation/devicetree/bindings/spi/spi-bus.txt Example: |