| Message ID | 1497621452-615-2-git-send-email-olivier.moysan@st.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
On Fri, Jun 16, 2017 at 03:57:31PM +0200, olivier moysan wrote: > This adds documentation of device tree bindings for the > STM32 SPDIFRX interface. > > Signed-off-by: olivier moysan <olivier.moysan@st.com> > --- > .../devicetree/bindings/sound/st,stm32-spdifrx.txt | 56 ++++++++++++++++++++++ > 1 file changed, 56 insertions(+) > create mode 100644 Documentation/devicetree/bindings/sound/st,stm32-spdifrx.txt > > diff --git a/Documentation/devicetree/bindings/sound/st,stm32-spdifrx.txt b/Documentation/devicetree/bindings/sound/st,stm32-spdifrx.txt > new file mode 100644 > index 0000000..33826f2 > --- /dev/null > +++ b/Documentation/devicetree/bindings/sound/st,stm32-spdifrx.txt > @@ -0,0 +1,56 @@ > +STMicroelectronics STM32 S/PDIF receiver (SPDIFRX). > + > +The SPDIFRX peripheral, is designed to receive an S/PDIF flow compliant with > +IEC-60958 and IEC-61937. > + > +Required properties: > + - compatible: should be "st,stm32h7-spdifrx" > + - reg: cpu DAI IP base address and size > + - clocks: must contain an entry for kclk (used as S/PDIF signal reference) > + - clock-names: must contain "kclk" > + - interrupts: cpu DAI interrupt line > + - dmas: DMA specifiers for audio data DMA and iec control flow DMA > + See STM32 DMA bindings, Documentation/devicetree/bindings/dma/stm32-dma.txt > + - dma-names: two dmas have to be defined, "rx" and "rx-ctrl" > + > +Optional properties: > + - resets: Reference to a reset controller asserting the SPDIFRX > + > +The device node should contain one 'port' child node with one child 'endpoint' > +node, according to the bindings defined in Documentation/devicetree/bindings/ > +graph.txt. > + > +Example: > +spdifrx: spdifrx@40004000 { > + compatible = "st,stm32h7-spdifrx"; > + reg = <0x40004000 0x400>; > + clocks = <&rcc SPDIFRX_CK>; > + clock-names = "kclk"; > + interrupts = <97>; > + dmas = <&dmamux1 2 93 0x400 0x0>, > + <&dmamux1 3 94 0x400 0x0>; > + dma-names = "rx", "rx-ctrl"; > + pinctrl-0 = <&spdifrx_pins>; > + pinctrl-names = "default"; > + > + spdifrx_port: port { > + cpu_endpoint: endpoint { > + remote-endpoint = <&codec_endpoint>; > + }; > + }; > +}; > + > +spdif_in: spdif-in { > + compatible = "linux,spdif-dir"; What is this? It should go. Rob
Hello Rob, On 06/23/2017 08:55 PM, Rob Herring wrote: > On Fri, Jun 16, 2017 at 03:57:31PM +0200, olivier moysan wrote: >> This adds documentation of device tree bindings for the >> STM32 SPDIFRX interface. >> >> Signed-off-by: olivier moysan <olivier.moysan@st.com> >> --- >> .../devicetree/bindings/sound/st,stm32-spdifrx.txt | 56 ++++++++++++++++++++++ >> 1 file changed, 56 insertions(+) >> create mode 100644 Documentation/devicetree/bindings/sound/st,stm32-spdifrx.txt >> >> diff --git a/Documentation/devicetree/bindings/sound/st,stm32-spdifrx.txt b/Documentation/devicetree/bindings/sound/st,stm32-spdifrx.txt >> new file mode 100644 >> index 0000000..33826f2 >> --- /dev/null >> +++ b/Documentation/devicetree/bindings/sound/st,stm32-spdifrx.txt >> @@ -0,0 +1,56 @@ >> +STMicroelectronics STM32 S/PDIF receiver (SPDIFRX). >> + >> +The SPDIFRX peripheral, is designed to receive an S/PDIF flow compliant with >> +IEC-60958 and IEC-61937. >> + >> +Required properties: >> + - compatible: should be "st,stm32h7-spdifrx" >> + - reg: cpu DAI IP base address and size >> + - clocks: must contain an entry for kclk (used as S/PDIF signal reference) >> + - clock-names: must contain "kclk" >> + - interrupts: cpu DAI interrupt line >> + - dmas: DMA specifiers for audio data DMA and iec control flow DMA >> + See STM32 DMA bindings, Documentation/devicetree/bindings/dma/stm32-dma.txt >> + - dma-names: two dmas have to be defined, "rx" and "rx-ctrl" >> + >> +Optional properties: >> + - resets: Reference to a reset controller asserting the SPDIFRX >> + >> +The device node should contain one 'port' child node with one child 'endpoint' >> +node, according to the bindings defined in Documentation/devicetree/bindings/ >> +graph.txt. >> + >> +Example: >> +spdifrx: spdifrx@40004000 { >> + compatible = "st,stm32h7-spdifrx"; >> + reg = <0x40004000 0x400>; >> + clocks = <&rcc SPDIFRX_CK>; >> + clock-names = "kclk"; >> + interrupts = <97>; >> + dmas = <&dmamux1 2 93 0x400 0x0>, >> + <&dmamux1 3 94 0x400 0x0>; >> + dma-names = "rx", "rx-ctrl"; >> + pinctrl-0 = <&spdifrx_pins>; >> + pinctrl-names = "default"; >> + >> + spdifrx_port: port { >> + cpu_endpoint: endpoint { >> + remote-endpoint = <&codec_endpoint>; >> + }; >> + }; >> +}; >> + >> +spdif_in: spdif-in { >> + compatible = "linux,spdif-dir"; > > What is this? It should go. > > Rob > This is the ASoC spdif stub codec. This is relevant in DT when spdif interface is wired to a connector. I will remove it from bindings. BRs olivier
diff --git a/Documentation/devicetree/bindings/sound/st,stm32-spdifrx.txt b/Documentation/devicetree/bindings/sound/st,stm32-spdifrx.txt new file mode 100644 index 0000000..33826f2 --- /dev/null +++ b/Documentation/devicetree/bindings/sound/st,stm32-spdifrx.txt @@ -0,0 +1,56 @@ +STMicroelectronics STM32 S/PDIF receiver (SPDIFRX). + +The SPDIFRX peripheral, is designed to receive an S/PDIF flow compliant with +IEC-60958 and IEC-61937. + +Required properties: + - compatible: should be "st,stm32h7-spdifrx" + - reg: cpu DAI IP base address and size + - clocks: must contain an entry for kclk (used as S/PDIF signal reference) + - clock-names: must contain "kclk" + - interrupts: cpu DAI interrupt line + - dmas: DMA specifiers for audio data DMA and iec control flow DMA + See STM32 DMA bindings, Documentation/devicetree/bindings/dma/stm32-dma.txt + - dma-names: two dmas have to be defined, "rx" and "rx-ctrl" + +Optional properties: + - resets: Reference to a reset controller asserting the SPDIFRX + +The device node should contain one 'port' child node with one child 'endpoint' +node, according to the bindings defined in Documentation/devicetree/bindings/ +graph.txt. + +Example: +spdifrx: spdifrx@40004000 { + compatible = "st,stm32h7-spdifrx"; + reg = <0x40004000 0x400>; + clocks = <&rcc SPDIFRX_CK>; + clock-names = "kclk"; + interrupts = <97>; + dmas = <&dmamux1 2 93 0x400 0x0>, + <&dmamux1 3 94 0x400 0x0>; + dma-names = "rx", "rx-ctrl"; + pinctrl-0 = <&spdifrx_pins>; + pinctrl-names = "default"; + + spdifrx_port: port { + cpu_endpoint: endpoint { + remote-endpoint = <&codec_endpoint>; + }; + }; +}; + +spdif_in: spdif-in { + compatible = "linux,spdif-dir"; + + codec_port: port { + codec_endpoint: endpoint { + remote-endpoint = <&cpu_endpoint>; + }; + }; +}; + +soundcard { + compatible = "audio-graph-card"; + dais = <&spdifrx_port>; +};
This adds documentation of device tree bindings for the STM32 SPDIFRX interface. Signed-off-by: olivier moysan <olivier.moysan@st.com> --- .../devicetree/bindings/sound/st,stm32-spdifrx.txt | 56 ++++++++++++++++++++++ 1 file changed, 56 insertions(+) create mode 100644 Documentation/devicetree/bindings/sound/st,stm32-spdifrx.txt