Tool/software:
Hi TI,
When I use the "aplay" command for audio driver testing, the following error will be reported:
root@tiny:~# aplay sample-3s.wav Playing WAVE 'sample-3s.wav' : [ 25.317396] tas2505-codec 2-0018: tas2505_hw_params: bit width = 16 Signed 16 bit Little Endian, Rate 44100 Hz, Stereo [ 25.347392] davinci-mcasp 2b10000.audio-controller: Sample-rate is off by 400 PPM [ 25.357478] tas2505-codec 2-0018: tas2505_set_bias_level:power on aplay: pcm_write:2146: write error: Input/output error [ 45.737567] tas2505-codec 2-0018: tas2505_set_bias_level:SND_SOC_BIAS_STANDBY [ 45.747864] tas2505-codec 2-0018: tas2505_set_bias_level:power off root@tiny:~#
The driver for tas2505 is from this link: https://git.ti.com/cgit/lpaa-android-drivers/tas2505-linux-driver/ ,and the device tree configuration is also configured based on this link.But the "clk_mcasp" node in the device tree has an "enable-gpios" node that I don't know which pin on our own board it corresponds to, so it's not configured.
/{
clk_mcasp1_fixed: clk_mcasp1_fixed {
#clock-cells = <0>;
compatible = "fixed-clock";
clock-frequency = <24576000>;
};
clk_mcasp1: clk_mcasp1 {
#clock-cells = <0>;
compatible = "gpio-gate-clock";
clocks = <&clk_mcasp1_fixed>;
//enable-gpios = <&gpio1 27 0>; /* BeagleBone Black Clk enable on GPIO1_27 */
};
codec_audio: sound {
compatible = "simple-audio-card";
simple-audio-card,name = "AM62x-SKEVM";
simple-audio-card,dai-link@0 {
format = "i2s";
bitclock-master = <&sound0_master>;
frame-master = <&sound0_master>;
sound0_master: cpu {
sound-dai = <&mcasp1>;
clocks = <&clk_mcasp1>;
};
codec {
sound-dai = <&tas2505>;
};
};
};
};
Due to the ''enable-gopios'' node not being configured, the boot log will have the following error:
[ 0.813168] clk_mcasp1: gpio_clk_driver_probe: Can't get 'enable' named GPIO property [ 0.821220] gpio-clk: probe of clk_mcasp1 failed with error -2
I would like to ask, what is the reason for the error message "aplay: pcm_write: 2146: write error: Input/output error"? Is it related to the fact that the node ''enable-gpios'' is not configured? If it's relevant, can you tell me how to configure the ''enable-gopios’' node?
The sound card information and device node information are as follows:
root@tiny:~# aplay -l
**** List of PLAYBACK Hardware Devices ****
card 0: AM62xSKEVM [AM62x-SKEVM], device 0: davinci-mcasp.0-tas2505-hifi tas2505-hifi-0 [davinci-mcasp.0-tas2505-hifi tas2505-hifi-0]
Subdevices: 1/1
Subdevice #0: subdevice #0
root@tiny:~# cat /proc/asound/
AM62xSKEVM/ card0/ cards devices pcm timers version
root@tiny:~# cat /proc/asound/cards
0 [AM62xSKEVM ]: simple-card - AM62x-SKEVM
AM62x-SKEVM
root@tiny:~# ls /dev/snd/
controlC0 pcmC0D0p timer
root@tiny:~#
