diff options
| author |   Fabrice Gasnier <fabrice.gasnier@st.com> | 2018-02-23 12:11:00 +0100 |
|---|---|---|
| committer |   Jonathan Cameron <Jonathan.Cameron@huawei.com> | 2018-03-03 15:07:14 +0000 |
| commit | c0879ed6188789c6252e91cedabf46236cfa1d42 (patch) | |
| tree | f1ed8dcb3cdbfaa1e205f3d527d368a72b2435b0 /Documentation/devicetree/bindings/iio | |
| parent | iio: cros_ec: Relax sampling frequency before suspending (diff) | |
| download | linux-dev-c0879ed6188789c6252e91cedabf46236cfa1d42.tar.xz linux-dev-c0879ed6188789c6252e91cedabf46236cfa1d42.zip | |
dt-bindings: iio: adc: stm32-dfsdm: fix types, add missing pinctrl
- Add missing pinctrl description. Support is made optional as dfsdm
may use internal sources (e.g. via registers)
- Fix typo in IIO STM32 DFSDM filter "MANCH_F" description.
Basically, this should be "falling edge = logic 0", not "1" that applies
to "MANCH_R".
BTW, make the description complete by describing both rising/falling
edges as described in reference manuals.
Fixes: 6c82f947fc97 ("IIO: add DT bindings for stm32 DFSDM filter")
Signed-off-by: Fabrice Gasnier <fabrice.gasnier@st.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Diffstat (limited to 'Documentation/devicetree/bindings/iio')
| -rw-r--r-- | Documentation/devicetree/bindings/iio/adc/st,stm32-dfsdm-adc.txt | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/Documentation/devicetree/bindings/iio/adc/st,stm32-dfsdm-adc.txt b/Documentation/devicetree/bindings/iio/adc/st,stm32-dfsdm-adc.txt index 911492da48f3..ed7520d1d051 100644 --- a/Documentation/devicetree/bindings/iio/adc/st,stm32-dfsdm-adc.txt +++ b/Documentation/devicetree/bindings/iio/adc/st,stm32-dfsdm-adc.txt @@ -32,6 +32,10 @@ Optional properties: to "clock" property. Frequency must be a multiple of the rcc clock frequency. If not, SPI CLKOUT frequency will not be accurate. +- pinctrl-names: Set to "default". +- pinctrl-0: List of phandles pointing to pin configuration + nodes to set pins in mode of operation for dfsdm + on external pin. Contents of a STM32 DFSDM child nodes: -------------------------------------- @@ -68,8 +72,8 @@ Optional properties: - st,adc-channel-types: Single-ended channel input type. - "SPI_R": SPI with data on rising edge (default) - "SPI_F": SPI with data on falling edge - - "MANCH_R": manchester codec, rising edge = logic 0 - - "MANCH_F": manchester codec, falling edge = logic 1 + - "MANCH_R": manchester codec, rising edge = logic 0, falling edge = logic 1 + - "MANCH_F": manchester codec, rising edge = logic 1, falling edge = logic 0 - st,adc-channel-clk-src: Conversion clock source. - "CLKIN": external SPI clock (CLKIN x) - "CLKOUT": internal SPI clock (CLKOUT) (default) |