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【Android】
rk3566jd4,最新sdk，android11，请问如何设置i2s2的M1能正常使能。请大佬指点下
发表于 2023-1-11 09:47:25
浏览：5581
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本帖最后由 zhu944567126 于 2023-1-11 09:59 编辑
我当前的默认dts i2s2的一些引脚情况如下
pin 133 (gpio4-5): vcc5v0-usb30-regulator gpio4:133 function usb group vcc5v0-usb30-drv
pin 138 (gpio4-10): (MUX UNCLAIMED) (GPIO UNCLAIMED)
pin 145 (gpio4-17): (MUX UNCLAIMED) (GPIO UNCLAIMED)
pin 82 (gpio2-18): fe420000.i2s (GPIO UNCLAIMED) function i2s2 group i2s2m0-sclktx
pin 83 (gpio2-19): fe420000.i2s gpio2:83 function i2s2 group i2s2m0-lrcktx
pin 84 (gpio2-20): fe420000.i2s (GPIO UNCLAIMED) function i2s2 group i2s2m0-sdo
pin 85 (gpio2-21): fe420000.i2s (GPIO UNCLAIMED) function i2s2 group i2s2m0-sdi
我的需求是音频输入到i2s2中， 我用示波器已测量I2S2_SCLK_RX_M1,I2S2_LRCK_RX_M1,I2S2_SDI_M1(前二个脚有信号时钟，当有声音输入第三个脚测量是信号时钟)。 说明我的i2s2的输入都正常设置号了。
现在要解决的问题是dts 如何配置相关i2s2的输入的脚。
我尝试过把上面i2s2m0-sclktx，i2s2m0-lrcktx，i2s2m0-sdo，i2s2m0-sdi在dts中关闭换成如下dts，结果也是不行。
i2s2_2ch: i2s@fe420000 {
compatible = "rockchip,rk3568-i2s-tdm";
reg = <0x0 0xfe420000 0x0 0x1000>;
interrupts = <GIC_SPI 54 IRQ_TYPE_LEVEL_HIGH>;
clocks = <&cru MCLK_I2S2_2CH>, <&cru MCLK_I2S2_2CH>, <&cru HCLK_I2S2_2CH>;
clock-names = "mclk_tx", "mclk_rx", "hclk";
dmas = <&dmac1 4>, <&dmac1 5>;
dma-names = "tx", "rx";
rockchip,cru = <&cru>;
rockchip,grf = <&grf>;
rockchip,clk-trcm = <1>;
#sound-dai-cells = <0>;
pinctrl-names = "default";
// pinctrl-0 = <&i2s2m0_sclktx
// &i2s2m0_lrcktx
// &i2s2m0_sdi
// &i2s2m0_sdo>;
pinctrl-0 = <&i2s2m1_sclkrx
&i2s2m1_lrckrx
&i2s2m1_sdi
&i2s2m1_sdo>;
status = "disabled";
};
cat /proc/asound/cards <
0 [rockchiphdmi ]: rockchip_hdmi - rockchip,hdmi
rockchip,hdmi
1 [rockchiprk809co]: rockchip_rk809- - rockchip,rk809-codec
rockchip,rk809-codec
rk3566_firefly_aiojd4:/data/mig $ ls /dev/snd/
controlC0 controlC1 pcmC0D0p pcmC1D0c pcmC1D0p timer
rk3566_firefly_aiojd4:/data/mig $ cat /pro
proc/ product/
cat /proc/asound/devices <
2: [ 0- 0]: digital audio playback
3: [ 0] : control
4: [ 1- 0]: digital audio playback
5: [ 1- 0]: digital audio capture
6: [ 1] : control
33: : timer
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