165 lines
4.5 KiB
Plaintext
165 lines
4.5 KiB
Plaintext
STMicroelectronics sti ASoC cards
|
|
|
|
The sti ASoC Sound Card can be used, for all sti SoCs using internal sti-sas
|
|
codec or external codecs.
|
|
|
|
sti sound drivers allows to expose sti SoC audio interface through the
|
|
generic ASoC simple card. For details about sound card declaration please refer to
|
|
Documentation/devicetree/bindings/sound/simple-card.txt.
|
|
|
|
1) sti-uniperiph-dai: audio dai device.
|
|
---------------------------------------
|
|
|
|
Required properties:
|
|
- compatible: "st,stih407-uni-player-hdmi", "st,stih407-uni-player-pcm-out",
|
|
"st,stih407-uni-player-dac", "st,stih407-uni-player-spdif",
|
|
"st,stih407-uni-reader-pcm_in", "st,stih407-uni-reader-hdmi",
|
|
|
|
- st,syscfg: phandle to boot-device system configuration registers
|
|
|
|
- clock-names: name of the clocks listed in clocks property in the same order
|
|
|
|
- reg: CPU DAI IP Base address and size entries, listed in same
|
|
order than the CPU_DAI properties.
|
|
|
|
- reg-names: names of the mapped memory regions listed in regs property in
|
|
the same order.
|
|
|
|
- interrupts: CPU_DAI interrupt line, listed in the same order than the
|
|
CPU_DAI properties.
|
|
|
|
- dma: CPU_DAI DMA controller phandle and DMA request line, listed in the same
|
|
order than the CPU_DAI properties.
|
|
|
|
- dma-names: identifier string for each DMA request line in the dmas property.
|
|
"tx" for "st,sti-uni-player" compatibility
|
|
"rx" for "st,sti-uni-reader" compatibility
|
|
|
|
Required properties ("st,sti-uni-player" compatibility only):
|
|
- clocks: CPU_DAI IP clock source, listed in the same order than the
|
|
CPU_DAI properties.
|
|
|
|
Optional properties:
|
|
- pinctrl-0: defined for CPU_DAI@1 and CPU_DAI@4 to describe I2S PIOs for
|
|
external codecs connection.
|
|
|
|
- pinctrl-names: should contain only one value - "default".
|
|
|
|
- st,tdm-mode: to declare to set TDM mode for unireader and uniplayer IPs.
|
|
Only compartible with IPs in charge of the external I2S/TDM bus.
|
|
Should be declared depending on associated codec.
|
|
|
|
Example:
|
|
|
|
sti_uni_player1: sti-uni-player@8D81000 {
|
|
compatible = "st,stih407-uni-player-hdmi";
|
|
#sound-dai-cells = <0>;
|
|
st,syscfg = <&syscfg_core>;
|
|
clocks = <&clk_s_d0_flexgen CLK_PCM_1>;
|
|
reg = <0x8D81000 0x158>;
|
|
interrupts = <GIC_SPI 85 IRQ_TYPE_NONE>;
|
|
dmas = <&fdma0 3 0 1>;
|
|
dma-names = "tx";
|
|
st,tdm-mode = <1>;
|
|
};
|
|
|
|
sti_uni_player2: sti-uni-player@8D82000 {
|
|
compatible = "st,stih407-uni-player-pcm-out";
|
|
#sound-dai-cells = <0>;
|
|
st,syscfg = <&syscfg_core>;
|
|
clocks = <&clk_s_d0_flexgen CLK_PCM_2>;
|
|
reg = <0x8D82000 0x158>;
|
|
interrupts = <GIC_SPI 86 IRQ_TYPE_NONE>;
|
|
dmas = <&fdma0 4 0 1>;
|
|
dma-names = "tx";
|
|
};
|
|
|
|
sti_uni_player3: sti-uni-player@8D85000 {
|
|
compatible = "st,stih407-uni-player-spdif";
|
|
#sound-dai-cells = <0>;
|
|
st,syscfg = <&syscfg_core>;
|
|
clocks = <&clk_s_d0_flexgen CLK_SPDIFF>;
|
|
reg = <0x8D85000 0x158>;
|
|
interrupts = <GIC_SPI 89 IRQ_TYPE_NONE>;
|
|
dmas = <&fdma0 7 0 1>;
|
|
dma-names = "tx";
|
|
};
|
|
|
|
sti_uni_reader1: sti-uni-reader@8D84000 {
|
|
compatible = "st,stih407-uni-reader-hdmi";
|
|
#sound-dai-cells = <0>;
|
|
st,syscfg = <&syscfg_core>;
|
|
reg = <0x8D84000 0x158>;
|
|
interrupts = <GIC_SPI 88 IRQ_TYPE_NONE>;
|
|
dmas = <&fdma0 6 0 1>;
|
|
dma-names = "rx";
|
|
};
|
|
|
|
2) sti-sas-codec: internal audio codec IPs driver
|
|
-------------------------------------------------
|
|
|
|
Required properties:
|
|
- compatible: "st,sti<chip>-sas-codec" .
|
|
Should be chip "st,stih416-sas-codec" or "st,stih407-sas-codec"
|
|
|
|
- st,syscfg: phandle to boot-device system configuration registers.
|
|
|
|
- pinctrl-0: SPDIF PIO description.
|
|
|
|
- pinctrl-names: should contain only one value - "default".
|
|
|
|
Example:
|
|
sti_sas_codec: sti-sas-codec {
|
|
compatible = "st,stih407-sas-codec";
|
|
#sound-dai-cells = <1>;
|
|
st,reg_audio = <&syscfg_core>;
|
|
pinctrl-names = "default";
|
|
pinctrl-0 = <&pinctrl_spdif_out >;
|
|
};
|
|
|
|
Example of audio card declaration:
|
|
sound {
|
|
compatible = "simple-audio-card";
|
|
simple-audio-card,name = "sti audio card";
|
|
|
|
simple-audio-card,dai-link@0 {
|
|
/* DAC */
|
|
format = "i2s";
|
|
dai-tdm-slot-width = <32>;
|
|
cpu {
|
|
sound-dai = <&sti_uni_player2>;
|
|
};
|
|
|
|
codec {
|
|
sound-dai = <&sti_sasg_codec 1>;
|
|
};
|
|
};
|
|
simple-audio-card,dai-link@1 {
|
|
/* SPDIF */
|
|
format = "left_j";
|
|
cpu {
|
|
sound-dai = <&sti_uni_player3>;
|
|
};
|
|
|
|
codec {
|
|
sound-dai = <&sti_sasg_codec 0>;
|
|
};
|
|
};
|
|
simple-audio-card,dai-link@2 {
|
|
/* TDM playback */
|
|
format = "left_j";
|
|
frame-inversion = <1>;
|
|
cpu {
|
|
sound-dai = <&sti_uni_player1>;
|
|
dai-tdm-slot-num = <16>;
|
|
dai-tdm-slot-width = <16>;
|
|
dai-tdm-slot-tx-mask =
|
|
<1 1 1 1 0 0 0 0 0 0 1 1 0 0 1 1>;
|
|
};
|
|
|
|
codec {
|
|
sound-dai = <&sti_sasg_codec 3>;
|
|
};
|
|
};
|
|
};
|