Part Number:AM5708
Tool/software: Linux
Hello,
I am trying to set up drivers of TLV320AIC32 to linux(core - 4.14.79-gbde58ab01e).
I've uderstood that I have to use a pack - Linux Driver for TLV320AIC32X4. But I found some strange things here.
Firstly, in the documentation about dts is written -
- supply-*: Required supply regulators are:
"iov" - digital IO power supply
"ldoin" - LDO power supply
"dv" - Digital core power supply
"av" - Analog core power supply
It looks as if I have to use "supply-iov", "supply-ldoin" and so on. But in code I see an ordinary form with *-supply. So, I use "iov-supply", "dv-supply" and "av-supply".
I have a fixed external voltage regulation, so my sound part in dts there/ {
model = "AM5708 p38 rev 1.0";
compatible = "ti,am5718", "ti,dra718-evm", "ti,dra718", "ti,dra722", "ti,dra72", "ti,dra7";
aliases {
sound0 = &sound0;
};
chosen {
stdout-path = &uart3;
};
memory@0 {
device_type = "memory";
reg = <0x0 0x80000000 0x0 0x40000000>; /* 1024 MB */
};
sound0: sound0 {
compatible = "simple-audio-card";
simple-audio-card,name = "DRA7xx-EVM";
simple-audio-card,widgets =
"Headphone", "Headphone Jack",
"Line", "Line Out",
"Microphone", "Mic Jack",
"Line", "Line In";
simple-audio-card,routing =
"Headphone Jack", "HPLOUT",
"Headphone Jack", "HPROUT",
"Line Out", "LLOUT",
"Line Out", "RLOUT",
"MIC3L", "Mic Jack",
"MIC3R", "Mic Jack",
"Mic Jack", "Mic Bias",
"LINE1L", "Line In",
"LINE1R", "Line In";
simple-audio-card,format = "dsp_b";
simple-audio-card,bitclock-master = <&sound0_master>;
simple-audio-card,frame-master = <&sound0_master>;
simple-audio-card,bitclock-inversion;
sound0_master: simple-audio-card,cpu {
sound-dai = <&mcasp1>;
system-clock-frequency = <5644800>;
};
simple-audio-card,codec {
sound-dai = <&tlv320aic32>;
clocks = <&atl_clkin2_ck>;
};
};
reserved-memory {
#address-cells = <2>;
#size-cells = <2>;
ranges;
ipu2_memory_region: ipu2-memory@95800000 {
compatible = "shared-dma-pool";
reg = <0x0 0x95800000 0x0 0x3800000>;
reusable;
status = "okay";
};
dsp1_memory_region: dsp1-memory@99000000 {
compatible = "shared-dma-pool";
reg = <0x0 0x99000000 0x0 0x4000000>;
reusable;
status = "okay";
};
ipu1_memory_region: ipu1-memory@9d000000 {
compatible = "shared-dma-pool";
reg = <0x0 0x9d000000 0x0 0x2000000>;
reusable;
status = "okay";
};
};
reg3: fixedregulator@0 {
status = "okay";
regulator-name = "3vs";
regulator-min-microvolt = <3000000>;
regulator-max-microvolt = <3000000>;
regulator-always-on;
regulator-boot-on;
};
reg18: fixedregulator@1 {
status = "okay";
regulator-name = "18vd";
regulator-min-microvolt = <1800000>;
regulator-max-microvolt = <1800000>;
regulator-always-on;
regulator-boot-on;
};
mclk: fpgaosc {
status = "okay";
compatible = "fixed-clock";
#clock-cells = <1>;
clock-frequency = <12000000>;
clock-output-names = "mclk";
};
};
&mcasp1 {
#sound-dai-cells = <0>;
status = "okay";
op-mode = <0>;
tdm-slots = <2>;
serial-dir = <
1 2 0 0 /* 0: INACTIVE, 1: TX, 2: RX */
0 0 0 0
0 0 0 0
0 0 0 0 >;
};
&i2c1 {
status = "okay";
clock-frequency = <400000>;
tlv320aic32: tlv320aic32@18 {
#sound-dai-cells = <0>;
compatible = "ti,tlv320aic32x4";
reg = <0x18>;
adc-settle-ms = <40>;
ai3x-micbias-vg = <1>; /* 2.0V */
status = "okay";
av-supply = <®3>;
dv-supply = <®18>;
iov-supply = <®18>;
clocks = <&mclk 0>;
clock-names = "mclk";
};
};
Secondly, a directory "Menuconfig location" has not, hmmm, location. There are three config flags(two of them repeated, I don't undestand why) without location.
I haven't found a decision better then change a "KConfig" file. So, I changed next -
config SND_SOC_TLV320AIC32X4
tristate
config SND_SOC_TLV320AIC32X4_I2C
tristate
depends on I2C
select SND_SOC_TLV320AIC32X4
to -
config SND_SOC_TLV320AIC32X4
tristate "Texas Instruments TLV320AIC32X4 audio CODEC"
config SND_SOC_TLV320AIC32X4_I2C
tristate "Texas Instruments TLV320AIC32X4 audio CODEC - I2C"
depends on I2C
select SND_SOC_TLV320AIC32X4
After that I got this flags in menuconfig.
I compiled my project and got next error during the kernel loading -
[ 59.682391] tlv320aic32x4 0-0018: Missing supply 'iov'
[ 59.688691] tlv320aic32x4 0-0018: Failed to setup regulators
I checked what the error number was returned. It is 517. I guess it was set in core.c on next lines -
if (!try_module_get(rdev->owner)) {
regulator = ERR_PTR(-EPROBE_DEFER);
put_device(&rdev->dev);
return regulator;
}But I am not sure. Anyway, there I've decided to stop and ask some help about that. Becouse I think if I made a mistake early, when was preparing the driver.
Thank for your help
