summaryrefslogtreecommitdiffstats
path: root/Documentation/devicetree/bindings/sound/st,stm32-sai.txt
diff options
context:
space:
mode:
Diffstat (limited to 'Documentation/devicetree/bindings/sound/st,stm32-sai.txt')
-rw-r--r--Documentation/devicetree/bindings/sound/st,stm32-sai.txt41
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";
};
};
};