diff options
Diffstat (limited to 'Documentation/devicetree/bindings/sound/st,stm32-sai.txt')
| -rw-r--r-- | Documentation/devicetree/bindings/sound/st,stm32-sai.txt | 41 |
1 files changed, 18 insertions, 23 deletions
diff --git a/Documentation/devicetree/bindings/sound/st,stm32-sai.txt b/Documentation/devicetree/bindings/sound/st,stm32-sai.txt index c59a3d779e06..f1c5ae59e7c9 100644 --- a/Documentation/devicetree/bindings/sound/st,stm32-sai.txt +++ b/Documentation/devicetree/bindings/sound/st,stm32-sai.txt @@ -6,7 +6,7 @@ The SAI contains two independent audio sub-blocks. Each sub-block has its own clock generator and I/O lines controller. Required properties: - - compatible: Should be "st,stm32f4-sai" + - compatible: Should be "st,stm32f4-sai" or "st,stm32h7-sai" - reg: Base address and size of SAI common register set. - clocks: Must contain phandle and clock specifier pairs for each entry in clock-names. @@ -36,6 +36,10 @@ SAI subnodes required properties: - pinctrl-names: should contain only value "default" - pinctrl-0: see Documentation/devicetree/bindings/pinctrl/pinctrl-stm32.txt +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: sound_card { compatible = "audio-graph-card"; @@ -43,38 +47,29 @@ sound_card { }; sai1: sai1@40015800 { - compatible = "st,stm32f4-sai"; + compatible = "st,stm32h7-sai"; #address-cells = <1>; #size-cells = <1>; - ranges; + ranges = <0 0x40015800 0x400>; reg = <0x40015800 0x4>; - clocks = <&rcc 1 CLK_SAIQ_PDIV>, <&rcc 1 CLK_I2SQ_PDIV>; + clocks = <&rcc PLL1_Q>, <&rcc PLL2_P>; clock-names = "x8k", "x11k"; interrupts = <87>; - sai1b: audio-controller@40015824 { - #sound-dai-cells = <0>; - compatible = "st,stm32-sai-sub-b"; - reg = <0x40015824 0x1C>; - clocks = <&rcc 1 CLK_SAI2>; + sai1a: audio-controller@40015804 { + compatible = "st,stm32-sai-sub-a"; + reg = <0x4 0x1C>; + clocks = <&rcc SAI1_CK>; clock-names = "sai_ck"; - dmas = <&dma2 5 0 0x400 0x0>; + dmas = <&dmamux1 1 87 0x400 0x0>; dma-names = "tx"; pinctrl-names = "default"; - pinctrl-0 = <&pinctrl_sai1b>; - - ports { - #address-cells = <1>; - #size-cells = <0>; + pinctrl-0 = <&pinctrl_sai1a>; - sai1b_port: port@0 { - reg = <0>; - cpu_endpoint: endpoint { - remote-endpoint = <&codec_endpoint>; - audio-graph-card,format = "i2s"; - audio-graph-card,bitclock-master = <&codec_endpoint>; - audio-graph-card,frame-master = <&codec_endpoint>; - }; + sai1b_port: port { + cpu_endpoint: endpoint { + remote-endpoint = <&codec_endpoint>; + format = "i2s"; }; }; }; |