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ASoC: dt-bindings: add mclk provider support to stm32 sai

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add mclk provider support to stm32 sai

Signed-off-by: Olivier Moysan <olivier.moysan@st.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
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Olivier Moysan 2018-10-15 16:03:33 +02:00 committed by Mark Brown
parent 2c7b696a75
commit af16112457
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1 changed files with 7 additions and 0 deletions
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7
Documentation/devicetree/bindings/sound/st,stm32-sai.txt
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@ -31,7 +31,11 @@ SAI subnodes required properties:
- reg: Base address and size of SAI sub-block register set.
- clocks: Must contain one phandle and clock specifier pair
for sai_ck which feeds the internal clock generator.
If the SAI shares a master clock, with another SAI set as MCLK
clock provider, SAI provider phandle must be specified here.
- clock-names: Must contain "sai_ck".
Must also contain "MCLK", if SAI shares a master clock,
with a SAI set as MCLK clock provider.
- dmas: see Documentation/devicetree/bindings/dma/stm32-dma.txt
- dma-names: identifier string for each DMA request line
"tx": if sai sub-block is configured as playback DAI
@ -51,6 +55,9 @@ SAI subnodes Optional properties:
configured according to protocol defined in related DAI link node,
such as i2s, left justified, right justified, dsp and pdm protocols.
Note: ac97 protocol is not supported by SAI driver
- #clock-cells: should be 0. This property must be present if the SAI device
is a master clock provider, according to clocks bindings, described in
Documentation/devicetree/bindings/clock/clock-bindings.txt.
The device node should contain one 'port' child node with one child 'endpoint'
node, according to the bindings defined in Documentation/devicetree/bindings/