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* Spreadtrum Audio Devices
* MUST define a /sprd-audio-devices node
and, all sprd audio devices child node should be contain in it.
Required /sprd-audio-devices Specific Properties:
- compatible : "sprd,sound"
* SPRD-CODEC
Required SoC Specific Properties:
- compatible : "sprd,sprd-codec-v1"
or,
- compatible : "sprd,sprd-codec-v3"
Required Board Specific Properties:
- sprd,audio_power_ver : Which audio power version supported.
* <1> : Tiger serial project;
* <3> : Shark serial project;
- sprd,hp_pa_ver : Which internal headphone pa supported. (only sprd-codec-v3 option)
* <0> or null: default version of headphone pa;
* <1> : version 2 of headphone pa. (Dolphin serial project);
- sprd,ap_irq : Which IRQ number of codec ap part.
- sprd,dp_irq : Which IRQ number of codec dp part.
Optional Board Specific Properties:
- reg: physical base address of the controller and length of memory mapped
region.(not check now)
- sprd,def_da_fs : set default playback sample rate.
* VBC
Required SoC Specific Properties:
- compatible : "sprd,vbc-r1p0"
or,
- compatible : "sprd,vbc-r2p0"
Required Board Specific Properties:
Optional Board Specific Properties:
- reg: physical base address of the controller and length of memory mapped
region.(not check now)
* I2S
Required SoC Specific Properties:
- compatible : "sprd,i2s"
Required Board Specific Properties:
- sprd,hw_port : Which i2s hardware port.
- sprd,base : <physical base address, virtual base address>.
- sprd,dma_rx_no : Which i2s RX DMA number.
- sprd,dma_tx_no : Which i2s TX DMA number.
Optional Board Specific Properties:
- reg: physical base address of the controller and length of memory mapped
region.(not check now)
- sprd,config : phandle of i2s configure.
(* if this option is null, will use i2s configure default)
+ child node
*- sprd,def_pcm_config : empty property; define use default pcm configure;
(* if this option is null, will use i2s configure default)
*- sprd,slave_timeout : set the slave timeout value;
*- sprd,byte_per_chan : set the bytes per channel;
*- sprd,slave_mode : set is slave mode;
*- sprd,lsb : set is LSB mode;
*- sprd,lrck : set is LRCK mode;
*- sprd,low_for_left : set is Low for Left mode;
*- sprd,clk_inv : set is CLK invert;
*- sprd,i2s_compatible : set is compatible standard I2S mode;
*- sprd,pcm_short_frame : set is PCM short frame mode;
*- sprd,pcm_slot : set support PCM slot;
*- sprd,tx_watermark : set the TX watermark;
*- sprd,rx_watermark : set the RX watermark;
(** i2s default configure **)
/* default i2s config */
const static struct i2s_config def_i2s_config = {
.hw_port = 0,
.fs = 32000,
.slave_timeout = 0xF11,
.bus_type = I2S_BUS,
.byte_per_chan = I2S_BPCH_16,
.mode = I2S_SLAVE,
.lsb = I2S_MSB,
.rtx_mode = I2S_RX_MODE,
.sync_mode = I2S_LRCK,
.lrck_inv = I2S_L_LEFT,
.clk_inv = I2S_CLK_N,
.i2s_bus_mode = I2S_MSBJUSTFIED,
.tx_watermark = 12,
.rx_watermark = 20,
};
(** pcm default configure **)
/* default pcm config */
const static struct i2s_config def_pcm_config = {
.hw_port = 0,
.fs = 8000,
.slave_timeout = 0xF11,
.bus_type = PCM_BUS,
.byte_per_chan = I2S_BPCH_16,
.mode = I2S_MASTER,
.lsb = I2S_LSB,
.rtx_mode = I2S_RTX_MODE,
.sync_mode = I2S_LRCK,
.lrck_inv = I2S_L_LEFT,
.clk_inv = I2S_CLK_N,
.pcm_bus_mode = I2S_SHORT_FRAME,
.pcm_slot = 0x1,
.pcm_cycle = 1,
.tx_watermark = 12,
.rx_watermark = 20,
};
* VBC Sound Card
Required SoC Specific Properties:
- compatible : "sprd,vbc-r1p0-sprd-codec-v1"
or,
- compatible : "sprd,vbc-r2p0-sprd-codec-v3"
- sprd,model : what's name of this sound card;
- sprd,pcm : phandle of the platform;
- sprd,codec : phandle of the codec;
Required Board Specific Properties:
Optional Board Specific Properties:
* I2S Sound Card
Required SoC Specific Properties:
- compatible : "sprd,i2s-null-codec"
- sprd,model : what's name of this sound card;
- sprd,i2s : phandle list of the cpu dai(i2s);
- sprd,pcm : phandle of the platform;
- sprd,codec : phandle of the codec;
Required Board Specific Properties:
Optional Board Specific Properties:
Example:
- SoC Specific Portion:
/ {
sprd-audio-devices {
compatible = "sprd,sound";
#address-cells = <1>;
#size-cells = <1>;
/* 1. codecs */
sprd_codec_v3: sprd-codec-v3 {
compatible = "sprd,sprd-codec-v3";
status = "disable";
sprd,def_da_fs = <44100>;
sprd,ap_irq = <164>;
sprd,dp_irq = <52>;
};
sprd_codec_v1: sprd-codec-v1 {
compatible = "sprd,sprd-codec-v1";
status = "disable";
sprd,def_da_fs = <44100>;
sprd,ap_irq = <103>;
sprd,dp_irq = <63>;
};
null_codec: null-codec {
compatible = "sprd,null-codec";
};
/* 2. cpu-dais */
vbc_r2p0: vbc-r2p0 {
compatible = "sprd,vbc-r2p0";
status = "disable";
};
vbc_r1p0: vbc-r1p0 {
compatible = "sprd,vbc-r1p0";
status = "disable";
};
vaudio: vaudio {
compatible = "sprd,vaudio";
};
pcm_def_config: bt-i2s-config {
sprd,def_pcm_config;
};
i2s_def_config: fm-i2s-config {
};
i2s0: i2s@0 {
compatible = "sprd,i2s";
status = "disable";
sprd,hw_port = <0>;
sprd,base = <0x70D00000 0xF537C000>;
sprd,dma_rx_no = <3>;
sprd,dma_tx_no = <4>;
};
i2s1: i2s@1 {
compatible = "sprd,i2s";
status = "disable";
sprd,hw_port = <1>;
sprd,base = <0x70E00000 0xF5380000>;
sprd,dma_rx_no = <5>;
sprd,dma_tx_no = <6>;
};
i2s2: i2s@2 {
compatible = "sprd,i2s";
status = "disable";
sprd,hw_port = <2>;
sprd,base = <0x70F00000 0xF5382000>;
sprd,dma_rx_no = <7>;
sprd,dma_tx_no = <8>;
};
i2s3: i2s@3 {
compatible = "sprd,i2s";
status = "disable";
sprd,hw_port = <3>;
sprd,base = <0x71000000 0xF5384000>;
sprd,dma_rx_no = <9>;
sprd,dma_tx_no = <10>;
};
/* 3. platform */
sprd_pcm: sprd-pcm-audio {
compatible = "sprd,sprd-pcm";
};
/* 4. machine */
vbc_sound: sound@0 {
compatible = "sprd,vbc-r2p0-sprd-codec-v3";
sprd,model = "sprdphone";
sprd,vaudio = <&vaudio>;
sprd,vbc = <&vbc_r2p0>;
sprd,codec = <&sprd_codec_v3>;
sprd,pcm = <&sprd_pcm>;
};
i2s_sound: sound@1 {
compatible = "sprd,i2s-null-codec";
sprd,model = "all-i2s";
sprd,i2s = <&i2s0>, <&i2s1>, <&i2s2>, <&i2s3>;
sprd,codec = <&null_codec>;
sprd,pcm = <&sprd_pcm>;
};
};
};
Board Specific:
&vbc_r2p0 {
status = "okay";
};
&sprd_codec_v3 {
status = "okay";
sprd,audio_power_ver = <3>;
sprd,hp_pa_ver = <1>;
sprd,ap_irq = <166>;
};
&i2s0 {
status = "okay";
};
&i2s1 {
status = "okay";
};
&i2s_sound {
sprd,i2s = <&i2s0>, <&i2s1>;
};
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