I want to use the SIM5320 PCM interface with my twr-vf65gs10 Vybrid board (SAI2/I2S). I want to control the module SIM5320 via UART2 in my application.
I want to mark that I set ALSA library in Linux kernel on the twr-vf65gs10 device.
Is there a way to tell the device tree that the codec control via I2C is absent and there is only SAI2/I2S driver or maybe there are other solutions of this question, for example the library of drivers for GSM modules?
Fragment from the devices tree which I have at the moment:
sound {
compatible = "simple-audio-card";
simple-audio-card,format = "i2s";
simple-audio-card,widgets =
"Microphone", "Microphone Jack",
"Headphone", "Headphone Jack",
"Speaker", "Speaker Ext",
"Line", "Line In Jack";
simple-audio-card,routing =
"MIC_IN", "Microphone Jack",
"Microphone Jack", "Mic Bias",
"LINE_IN", "Line In Jack",
"Headphone Jack", "HP_OUT",
"Speaker Ext", "LINE_OUT";
simple-audio-card,cpu {
sound-dai = <&sai2>;
master-clkdir-out;
frame-master;
bitclock-master;
};
simple-audio-card,codec {
sound-dai = <&codec>;
frame-master;
bitclock-master;
};
};
&i2c0 {
clock-frequency = <100000>;
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_i2c0>;
status = "okay";
codec: sgtl5000@0a {
#sound-dai-cells = <0>;
compatible = "fsl,sgtl5000";
reg = <0x0a>;
VDDA-supply = <®_3p3v>;
VDDIO-supply = <®_3p3v>;
clocks = <&clks VF610_CLK_SAI2>;
};
touch: crtouch@49 {
compatible = "fsl,crtouch_ts";
reg = <0x49>;
};
};
sai2: sai@40031000 {
compatible = "fsl,vf610-sai";
reg = <0x40031000 0x1000>;
interrupts = <0 86 IRQ_TYPE_LEVEL_HIGH>;
clocks = <&clks VF610_CLK_SAI2>;
clock-names = "sai";
dma-names = "tx", "rx";
dmas = <&edma0 0 21>,
<&edma0 0 20>;
status = "disabled";
};