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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>
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@ -32,6 +32,10 @@ Optional properties:
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to "clock" property. Frequency must be a multiple of the rcc
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clock frequency. If not, SPI CLKOUT frequency will not be
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accurate.
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- pinctrl-names: Set to "default".
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- pinctrl-0: List of phandles pointing to pin configuration
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nodes to set pins in mode of operation for dfsdm
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on external pin.
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Contents of a STM32 DFSDM child nodes:
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--------------------------------------
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@ -68,8 +72,8 @@ Optional properties:
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- st,adc-channel-types: Single-ended channel input type.
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- "SPI_R": SPI with data on rising edge (default)
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- "SPI_F": SPI with data on falling edge
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- "MANCH_R": manchester codec, rising edge = logic 0
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- "MANCH_F": manchester codec, falling edge = logic 1
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- "MANCH_R": manchester codec, rising edge = logic 0, falling edge = logic 1
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- "MANCH_F": manchester codec, rising edge = logic 1, falling edge = logic 0
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- st,adc-channel-clk-src: Conversion clock source.
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- "CLKIN": external SPI clock (CLKIN x)
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- "CLKOUT": internal SPI clock (CLKOUT) (default)
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