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标题: rk3399使用i2s0发现I2S_CLK（MCLK）波形不正常，导致无法播放声音 [打印本页]

作者: diyin 时间: 2023-2-14 20:57
标题: rk3399使用i2s0发现I2S_CLK（MCLK）波形不正常，导致无法播放声音
需求：使用I2S0播放声音。
在设备树中增加dummy-codec和simple-audio-card节点，内核配置增加CONFIG_SND_SOC_DUMMY_CODEC=y，
重新编译SDK后，I2S0的几个引脚都有输出，但是播放无声，使用示波器观察I2S_CLK发现波形很不标准，应该是I2S_CLK波形不标准导致无正常播放声音。
载板使用是官方载板。

请问这个问题应该如何解决，以下是示波器拍照图片和设备树文件。

/dts-v1/;

#include "rk3399-firefly-port.dtsi"
#include <dt-bindings/sensor-dev.h>
#include <dt-bindings/display/media-bus-format.h>

/ {
test-power {
      status = "okay";
};

rt5640-sound {
      status = "disabled";
      simple-audio-card,cpu {
            sound-dai = <&i2s1>;
      };
      simple-audio-card,codec {
            sound-dai = <&rt5640>;
      };
};

adc-keys {
      compatible = "adc-keys";
      io-channels = <&saradc 1>;
      io-channel-names = "buttons";
      poll-interval = <300>;
      keyup-threshold-microvolt = <1800000>;

      esc-key {
         linux,code = <KEY_ESC>;
         label = "esc";
         press-threshold-microvolt = <0>;
      };
};

fan_ctl: fan-ctl-regulator {
      compatible = "regulator-fixed";
      enable-active-high;
      regulator-always-on;
      regulator-boot-on;
      gpio = <&gpio3 10 GPIO_ACTIVE_HIGH>;
      pinctrl-names = "default";
      regulator-name = "fan_ctl";
      pinctrl-0 = <&fan_drv>;
};

NPU5801_PWR_EN: HUB20-PWR-EN {
      compatible = "regulator-fixed";
      enable-active-high;
      regulator-always-on;
      regulator-boot-on;
      gpio = <&gpio0 2 GPIO_ACTIVE_HIGH>;
      pinctrl-names = "default";
      pinctrl-0 = <&npu5801_pwr_en>;
      regulator-name = "vcc5v0_5801_en";
      status = "okay";
};

dummy_codec: dummy-codec {
      compatible = "rockchip,dummy-codec";
      #sound-dai-cells = <0>;
      clocks = <&cru SCLK_I2S_8CH_OUT>;
      clock-names = "mclk";
      pinctrl-names = "default";
      pinctrl-0 = <&i2s_8ch_mclk>;
      status = "okay";
};

dummy-sound {
      status = "okay";
      compatible = "simple-audio-card";
      simple-audio-card,format = "i2s";
      simple-audio-card,name = "rockchip,dummy-codec";
      simple-audio-card,mclk-fs = <256>;

      simple-audio-card,cpu {
         sound-dai = <&i2s0>;
      };
      simple-audio-card,codec {
         sound-dai = <&dummy_codec>;
      };
};

};

&gmac {
/delete-property/ snps,force_thresh_dma_mode;
tx_delay = <0x2F>;
rx_delay = <0x1E>;
};

&vcc_sd_h {
rockchip,pins = <1 22 RK_FUNC_GPIO &pcfg_pull_up>;
};

&vcc_sd {
gpio = <&gpio1 22 GPIO_ACTIVE_HIGH>;
};

&hdmi_dp_sound {
status = "okay";
};

&i2c2 {
status = "disabled";
i2c-scl-rising-time-ns = <300>;
i2c-scl-falling-time-ns = <15>;

sensor@4c {
      status = "disabled";
      compatible = "gs_mc3230";
      reg = <0x4c>;
      type = <SENSOR_TYPE_ACCEL>;
      irq_enable = <0>;
      poll_delay_ms = <30>;
      layout = <1>;
};
};

&rt5640 {
hp-det-adc-value = <900>;
aux-det-adc-value = <900>;
hp-con-gpio = <&gpio3 16 GPIO_ACTIVE_HIGH>;
io-channels = <&saradc 3>,<&saradc 2>;
io-channel-names = "hp-det","aux-det";
status = "disabled";
};

&rt5640_hpcon{
rockchip,pins = <3 16 RK_FUNC_GPIO &pcfg_pull_none>;
};

&vcca1v8_codec {
regulator-min-microvolt = <900000>;
regulator-max-microvolt = <900000>;
};

&spi1 {
dev-port = <0>;
status = "okay";
};

&spi_wk2xxx {
status = "okay";
reset-gpio = <&gpio1 2 GPIO_ACTIVE_HIGH>;
irq-gpio = <&gpio2 8 IRQ_TYPE_EDGE_FALLING>;
cs-gpio = <&gpio1 10 GPIO_ACTIVE_HIGH>;
};

&vcc3v3_3g {
gpio = <&gpio2 28 GPIO_ACTIVE_HIGH>;
};

&vcc3v3_pcie {
/delete-property/ gpio;
};

&pcie0 {
ep-gpios = <&gpio4 30 GPIO_ACTIVE_HIGH>;
};

&uart4 {
status = "disabled";
};

&dp_in_vopb {
status = "disabled";
};

&hdmi_in_vopl {
status = "disabled";
};

&wdt {
status = "disabled";
};

&io_domains {
bt656-supply = <&vcc_3v0>;
};

&vcc2v8_dvp {
regulator-min-microvolt = <1800000>;
regulator-max-microvolt = <1800000>;
};

&vcca1v8_codec {
regulator-min-microvolt = <900000>;
regulator-max-microvolt = <900000>;
};

&fusb0 {
status = "disabled";
};

&cdn_dp {
status = "disabled";
};

&tcphy0 {
/delete-property/ extcon;
status = "okay";
};

&u2phy0 {
status = "okay";
/delete-property/ extcon;

u2phy0_otg: otg-port {
      rockchip,vbus-always-on;
      vbus-5v-gpios = <&gpio1 3 GPIO_ACTIVE_HIGH>;
      status = "okay";
};
};

&usbdrd3_0 {
status = "okay";
/delete-property/ extcon;
};

&usbdrd_dwc3_0 {
dr_mode = "host";
};

&route_hdmi {
status = "okay";
};

&rk808 {
   /delete-property/ pmic,stby-gpio;
   /delete-property/ pmic,hold-gpio;
};

&vcc_mipi {
status = "okay";
};

&dvdd_1v2 {
status = "okay";
};

&ov13850 {
pwdn-gpios = <&gpio2 1 GPIO_ACTIVE_HIGH>;
status = "okay";
};

&ov13850_1 {
pwdn-gpios = <&gpio2 0 GPIO_ACTIVE_HIGH>;
status = "okay";
};

&rkisp1_0 {
status = "okay";
};

&mipi_dphy_rx0 {
status = "okay";
};

&isp0_mmu {
status = "okay";
};

&rkisp1_1 {
status = "okay";
};

&mipi_dphy_tx1rx1 {
status = "okay";
};

&isp1_mmu {
status = "okay";
};

&pinctrl {
pinctrl-names = "default";
pinctrl-0 = <&host_hub_vcc>;

npu_pwr_en {
      // control VCC5V0_HOST3
      npu5801_pwr_en: npu5801-pwr-en {
         rockchip,pins =
            <0 2 RK_FUNC_GPIO &pcfg_pull_up>;
      };
};

host-hub-vcc {
      host_hub_vcc: host-hub-vcc {
         rockchip,pins =
            <2 4 RK_FUNC_GPIO &pcfg_output_high>,
            <4 29 RK_FUNC_GPIO &pcfg_output_high>;
      };
};

pcie {
      pcie_3g_drv: pcie-3g-drv {
         rockchip,pins =
            <2 6 RK_FUNC_GPIO &pcfg_pull_up>;
      };
};

vcc_sd {
      vcc_sd_h: vcc-sd-h {
         rockchip,pins =
            <1 22 RK_FUNC_GPIO &pcfg_pull_up>;
      };
};

fan-ctl {
      fan_drv: fan-drv {
         rockchip,pins = <3 10 RK_FUNC_GPIO &pcfg_pull_none>;
      };
};
};

tchip_askquestions

qqq1.jpg (1.14 MB, 下载次数: 877)

qqq2.jpg (1.33 MB, 下载次数: 846)

rk3399-firefly-aiojd4.zip

1.75 KB, 下载次数: 1, 下载积分: 灯泡 -1 , 经验 -1

i2s的开机日志.zip

20.83 KB, 下载次数: 1, 下载积分: 灯泡 -1 , 经验 -1

作者: diyin 时间: 2023-3-6 10:50
换了几个核心板刷官方的系统也是这样不会是硬件有问题这个功能不能用吧{:4_172:}

作者: neutionwei 时间: 2023-3-6 18:03
如果是时钟问题，参考一下rk3399-firefly-core.dtsi的i2s1配置。

作者: diyin 时间: 2023-3-7 15:34

neutionwei 发表于 2023-3-6 18:03
如果是时钟问题，参考一下rk3399-firefly-core.dtsi的i2s1配置。

i2s0应该怎么改些什么？

rk3399-firefly-core.dtsi里是这样的

&i2s0 {
rockchip,i2s-broken-burst-len;
rockchip,capture-channels = <8>;
rockchip,playback-channels = <8>;
#sound-dai-cells = <0>;
status = "okay";
};
&i2s1 {
rockchip,i2s-broken-burst-len;
rockchip,playback-channels = <2>;
rockchip,capture-channels = <2>;
assigned-clocks = <&cru SCLK_I2S1_DIV>, <&cru SCLK_I2S_8CH>;
assigned-clock-parents = <&cru PLL_GPLL>, <&cru SCLK_I2S1_8CH>;
#sound-dai-cells = <0>;
status = "okay";
};
&i2s2 {
#sound-dai-cells = <0>;
dmas = <&dmac_bus 4>;
dma-names = "tx";
status = "okay";
};

复制代码

作者: neutionwei 时间: 2023-3-7 16:39
assigned-clocks = <&cru SCLK_I2S1_DIV>, <&cru SCLK_I2S_8CH>;
assigned-clock-parents = <&cru PLL_GPLL>, <&cru SCLK_I2S1_8CH>;
这两个是时钟配置，可以参考一下。

作者: diyin 时间: 2023-3-10 15:28

neutionwei 发表于 2023-3-7 16:39
assigned-clocks = , ;
assigned-clock-parents = , ;
这两个是时钟配置，可以参考一下 ...

设备树增加了这两行，没效果，示波器上还是那样

&i2s0 {
rockchip,i2s-broken-burst-len;
rockchip,capture-channels = <8>;
rockchip,playback-channels = <8>;
assigned-clocks = <&cru SCLK_I2S0_DIV>, <&cru SCLK_I2S_8CH>;
assigned-clock-parents = <&cru PLL_GPLL>, <&cru SCLK_I2S0_8CH>;
#sound-dai-cells = <0>;
status = "okay";
};

复制代码

IMG_0999.JPG (1.12 MB, 下载次数: 881)

作者: neutionwei 时间: 2023-3-13 10:13
可能是硬件问题，寄给售后处理吧

作者: diyin 时间: 2023-3-14 09:16

neutionwei 发表于 2023-3-13 10:13
可能是硬件问题，寄给售后处理吧

好的那先返厂一块核心板售后看一下

作者: xueyuking 时间: 2023-3-30 15:09
最终结果是什么？解决了吗？硬件有问题吗？

作者: diyin 时间: 2023-3-31 12:28

xueyuking 发表于 2023-3-30 15:09
最终结果是什么？解决了吗？硬件有问题吗？

硬件没问题；
一开始自己编译的固件I2S1和I2S0的I2S_CLK信号都不能用，在自己编译的固件上导入了官方固件的rt5640的alas配置后，I2S1的I2S_CLK恢复了；在先刷官方固件再刷自己编译的固件后，I2S0的I2S_CLK也能正常用了（不知道是什么原理）。
另外发现，在开发板上I2S1和I2S0可能不能同时用。

作者: xueyuking 时间: 2023-4-4 09:36

diyin 发表于 2023-3-31 12:28
硬件没问题；
一开始自己编译的固件I2S1和I2S0的I2S_CLK信号都不能用，在自己编译的固件上导入了官方固 ...

这样看起来好像是对应的GPIO配置或是被占用了？

作者: diyin 时间: 2023-4-4 16:05

xueyuking 发表于 2023-4-4 09:36
这样看起来好像是对应的GPIO配置或是被占用了？

检查过dts 应该没有被占用吧日志没报错

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