MSM8953 audio dts 代码跟踪

最新推荐文章于 2025-05-26 11:48:58 发布
转载 最新推荐文章于 2025-05-26 11:48:58 发布 · 1.3k 阅读 · 9 ·
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原文链接：http://www.cnblogs.com/helloworldtoyou/p/10478427.html

本文详细解析了MSM8953平台的音频配置文件msm8953-audio-mtp.dtsi，介绍了内部MICBIAS的使用、不同设备的音频路由设置、时钟频率配置及GPIO引脚的多种功能状态。同时，深入探讨了msm8953-pinctrl.dtsi中GPIO引脚的配置细节。

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跟一下msm8953音频的dts。

msm8953-audio-mtp.dtsi

&int_codec {
    status = "okay";
    qcom,model = "msm8953-snd-card-mtp";
    qcom,msm-hs-micbias-type = "internal";  // 具有内部MICBIAS
    qcom,msm-spk-ext-pa = <&tlmm 96 0>;
    action,enable-aw8738;
    qcom,audio-routing =
        "RX_BIAS", "MCLK",
        "SPK_RX_BIAS", "MCLK",                  
        "INT_LDO_H", "MCLK",
        "MIC BIAS Internal1", "Handset Mic",    // 听筒采用内部MICBIAS
        "MIC BIAS Internal2", "Headset Mic",    // 耳机采用内部MICBIAS
        "MIC BIAS Internal3", "Secondary Mic",
        "AMIC1", "MIC BIAS Internal1",
        "AMIC2", "MIC BIAS Internal2",
        "AMIC3", "MIC BIAS Internal3";
};

msm-audio.dtsi

    int_codec: sound {
        status = "disabled";
        compatible = "qcom,msm8952-audio-codec";
        qcom,model = "msm8952-snd-card-mtp";
        reg = <0xc051000 0x4>,
              <0xc051004 0x4>,
              <0xc055000 0x4>,
              <0xc052000 0x4>;
        reg-names = "csr_gp_io_mux_mic_ctl",
                "csr_gp_io_mux_spkr_ctl",
                "csr_gp_io_lpaif_pri_pcm_pri_mode_muxsel",
                "csr_gp_io_mux_quin_ctl";

        qcom,msm-ext-pa = "primary";
        qcom,msm-mclk-freq = <9600000>;     // 驱动编解码器的所需的时钟
        qcom,msm-mbhc-hphl-swh = <0>;
        qcom,msm-mbhc-gnd-swh = <0>;
        qcom,msm-hs-micbias-type = "external";
        qcom,msm-micbias1-ext-cap;      // 听筒具有外部电容
        qcom,audio-routing =
            "RX_BIAS", "MCLK",
            "SPK_RX_BIAS", "MCLK",
            "INT_LDO_H", "MCLK",
            "MIC BIAS External", "Handset Mic",
            "MIC BIAS External2", "Headset Mic",
            "MIC BIAS External", "Secondary Mic",
            "AMIC1", "MIC BIAS External",
            "AMIC2", "MIC BIAS External2",
            "AMIC3", "MIC BIAS External",
            "WSA_SPK OUT", "VDD_WSA_SWITCH",
            "SpkrMono WSA_IN", "WSA_SPK OUT";   // 扬声器

        qcom,hdmi-dba-codec-rx;

        qcom,msm-gpios =
            "pri_i2s",
            "us_eu_gpio",
            "quin_i2s";
        qcom,pinctrl-names =
            "all_off",
            "pri_i2s_act",
            "us_eu_gpio_act",
            "pri_i2s_us_eu_gpio_act",
            "quin_act",
            "quin_pri_i2s_act",
            "quin_us_eu_gpio_act",
            "quin_us_eu_gpio_pri_i2s_act";
        // 8种功能，不同的功能使用的引脚见pinctrl-x
        pinctrl-names =
            "all_off",
            "pri_i2s_act",
            "us_eu_gpio_act",
            "pri_i2s_us_eu_gpio_act",
            "quin_act",
            "quin_pri_i2s_act",
            "quin_us_eu_gpio_act",
            "quin_us_eu_gpio_pri_i2s_act";
        // 对应all_off功能, 使用3组pin,总共7个引脚
        pinctrl-0 = <&cdc_pdm_lines_sus
                &cdc_pdm_lines_2_sus &cross_conn_det_sus>;
        // pri_i2s_act, 7个引脚
        pinctrl-1 = <&cdc_pdm_lines_act
                &cdc_pdm_lines_2_act &cross_conn_det_sus>;
        // "us_eu_gpio_act",
        pinctrl-2 = <&cdc_pdm_lines_sus
                &cdc_pdm_lines_2_sus &cross_conn_det_act>;
        // "pri_i2s_us_eu_gpio_act",
        pinctrl-3 = <&cdc_pdm_lines_act
                &cdc_pdm_lines_2_act &cross_conn_det_act>;
        // "quin_act",
        pinctrl-4 = <&cdc_pdm_lines_sus
                &cdc_pdm_lines_2_sus &cross_conn_det_sus>;
        // "quin_pri_i2s_act",
        pinctrl-5 = <&cdc_pdm_lines_act
                &cdc_pdm_lines_2_act &cross_conn_det_sus>;
        // "quin_us_eu_gpio_act",
        pinctrl-6 = <&cdc_pdm_lines_sus
                &cdc_pdm_lines_2_sus &cross_conn_det_act>;
        // "quin_us_eu_gpio_pri_i2s_act";
        pinctrl-7 = <&cdc_pdm_lines_act
                &cdc_pdm_lines_2_act &cross_conn_det_act>;

        asoc-platform = <&pcm0>, <&pcm1>, <&pcm2>, <&voip>, <&voice>,
                <&loopback>, <&compress>, <&hostless>,
                <&afe>, <&lsm>, <&routing>, <&lpa>;
        asoc-platform-names = "msm-pcm-dsp.0", "msm-pcm-dsp.1",
                "msm-pcm-dsp.2", "msm-voip-dsp",
                "msm-pcm-voice", "msm-pcm-loopback",
                "msm-compress-dsp", "msm-pcm-hostless",
                "msm-pcm-afe", "msm-lsm-client",
                "msm-pcm-routing", "msm-pcm-lpa";
        asoc-cpu = <&dai_pri_auxpcm>,
                <&dai_mi2s0>, <&dai_mi2s1>,
                <&dai_mi2s2>, <&dai_mi2s3>,
                <&dai_mi2s5>, <&dai_mi2s6>,
                <&sb_0_rx>, <&sb_0_tx>, <&sb_1_rx>, <&sb_1_tx>,
                <&sb_3_rx>, <&sb_3_tx>, <&sb_4_rx>, <&sb_4_tx>,
                <&bt_sco_rx>, <&bt_sco_tx>,
                <&int_fm_rx>, <&int_fm_tx>,
                <&afe_pcm_rx>, <&afe_pcm_tx>,
                <&afe_proxy_rx>, <&afe_proxy_tx>,
                <&incall_record_rx>, <&incall_record_tx>,
                <&incall_music_rx>, <&incall_music_2_rx>;
        asoc-cpu-names = "msm-dai-q6-auxpcm.1",
                "msm-dai-q6-mi2s.0", "msm-dai-q6-mi2s.1",
                "msm-dai-q6-mi2s.2", "msm-dai-q6-mi2s.3",
                "msm-dai-q6-mi2s.5", "msm-dai-q6-mi2s.6",
                "msm-dai-q6-dev.16384", "msm-dai-q6-dev.16385",
                "msm-dai-q6-dev.16386", "msm-dai-q6-dev.16387",
                "msm-dai-q6-dev.16390", "msm-dai-q6-dev.16391",
                "msm-dai-q6-dev.16392", "msm-dai-q6-dev.16393",
                "msm-dai-q6-dev.12288", "msm-dai-q6-dev.12289",
                "msm-dai-q6-dev.12292", "msm-dai-q6-dev.12293",
                "msm-dai-q6-dev.224", "msm-dai-q6-dev.225",
                "msm-dai-q6-dev.241", "msm-dai-q6-dev.240",
                "msm-dai-q6-dev.32771", "msm-dai-q6-dev.32772",
                "msm-dai-q6-dev.32773", "msm-dai-q6-dev.32770";
    };

msm8953-pinctrl.dtsi

        cdc_reset_ctrl {
            cdc_reset_sleep: cdc_reset_sleep {
                mux {
                    pins = "gpio67";
                    function = "gpio";
                };
                config {
                    pins = "gpio67";
                    drive-strength = <16>;
                    bias-disable;
                    output-low;
                };
            };
            cdc_reset_active:cdc_reset_active {
                mux {
                    pins = "gpio67";
                    function = "gpio";
                };
                config {
                    pins = "gpio67";
                    drive-strength = <16>;
                    bias-pull-down;
                    output-high;
                };
            };
        };

        cdc_mclk2_pin {
            cdc_mclk2_sleep: cdc_mclk2_sleep {
                mux {
                    pins = "gpio66";
                    function = "pri_mi2s";
                };
                config {
                    pins = "gpio66";
                    drive-strength = <2>; /* 2 mA */
                    bias-pull-down;       /* PULL DOWN */
                };
            };
            cdc_mclk2_active: cdc_mclk2_active {
                mux {
                    pins = "gpio66";
                    function = "pri_mi2s";
                };
                config {
                    pins = "gpio66";
                    drive-strength = <8>; /* 8 mA */
                    bias-disable;         /* NO PULL */
                };
            };
        };
        cdc-pdm-2-lines {
            cdc_pdm_lines_2_act: pdm_lines_2_on {
                mux {
                    pins = "gpio70", "gpio71", "gpio72";
                    function = "cdc_pdm0";
                };

                config {
                    pins = "gpio70", "gpio71", "gpio72";
                    drive-strength = <8>;
                };
            };

            cdc_pdm_lines_2_sus: pdm_lines_2_off {
                mux {
                    pins = "gpio70", "gpio71", "gpio72";
                    function = "cdc_pdm0";
                };

                config {
                    pins = "gpio70", "gpio71", "gpio72";
                    drive-strength = <2>;
                    bias-disable;
                };
            };
        };

        cdc-pdm-lines {
            cdc_pdm_lines_act: pdm_lines_on {
                mux {
                    pins = "gpio69", "gpio73", "gpio74";
                    function = "cdc_pdm0";
                };

                config {
                    pins = "gpio69", "gpio73", "gpio74";
                    drive-strength = <8>;
                };
            };
            cdc_pdm_lines_sus: pdm_lines_off {
                mux {
                    pins = "gpio69", "gpio73", "gpio74";
                    function = "cdc_pdm0";
                };

                config {
                    pins = "gpio69", "gpio73", "gpio74";
                    drive-strength = <2>;
                    bias-disable;
                };
            };
        };

        cdc-pdm-comp-lines {
            cdc_pdm_comp_lines_act: pdm_comp_lines_on {
                mux {
                    pins = "gpio67", "gpio68";
                    function = "cdc_pdm0";
                };

                config {
                    pins = "gpio67", "gpio68";
                    drive-strength = <8>;
                };
            };

            cdc_pdm_comp_lines_sus: pdm_comp_lines_off {
                mux {
                    pins = "gpio67", "gpio68";
                    function = "cdc_pdm0";
                };

                config {
                    pins = "gpio67", "gpio68";
                    drive-strength = <2>;
                    bias-disable;
                };
            };
        };

        cross-conn-det {
            cross_conn_det_act: lines_on {
                mux {
                    pins = "gpio63";
                    function = "gpio";
                };

                config {
                    pins = "gpio63";
                    drive-strength = <8>;
                    output-low;
                    bias-pull-down;
                };
            };

            cross_conn_det_sus: lines_off {
                mux {
                    pins = "gpio63";
                    function = "gpio";
                };

                config {
                    pins = "gpio63";
                    drive-strength = <2>;
                    bias-pull-down;
                };
            };
        };

msm-pm8953.dtsi

&spmi_bus {

    qcom,pm8953@0 {
        spmi-slave-container;
        reg = <0x0>;
        #address-cells = <1>;
        #size-cells = <1>;

        pm8953_revid: qcom,revid@100 {
            compatible = "qcom,qpnp-revid";
            reg = <0x100 0x100>;
        };

        qcom,power-on@800 {
            compatible = "qcom,qpnp-power-on";
            reg = <0x800 0x100>;
            interrupts = <0x0 0x8 0x0>,
                <0x0 0x8 0x1>,
                <0x0 0x8 0x4>,
                <0x0 0x8 0x5>;
            interrupt-names = "kpdpwr", "resin",
                "resin-bark", "kpdpwr-resin-bark";
            qcom,pon-dbc-delay = <15625>;
            qcom,system-reset;

            qcom,pon_1 {
                qcom,pon-type = <0>;
                                qcom,support-reset = <1>;
                                qcom,s1-timer = <6720>;//<10256>;
                                qcom,s2-timer = <2000>;
                                qcom,s2-type = <7>;
                                //default 1 warm reset,4 is shutdown,7 is hard reset
                qcom,pull-up = <1>;
                linux,code = <116>;
            };

            qcom,pon_2 {
                qcom,pon-type = <1>;
                qcom,pull-up = <1>;
                linux,code = <114>;
            };
        };

        pm8953_temp_alarm: qcom,temp-alarm@2400 {
            compatible = "qcom,qpnp-temp-alarm";
            reg = <0x2400 0x100>;
            interrupts = <0x0 0x24 0x0>;
            label = "pm8953_tz";
            qcom,channel-num = <8>;
            qcom,threshold-set = <0>;
            qcom,temp_alarm-vadc = <&pm8953_vadc>;
        };

        pm8953_coincell: qcom,coincell@2800 {
            compatible = "qcom,qpnp-coincell";
            reg = <0x2800 0x100>;
        };

        pm8953_mpps: mpps {
            compatible = "qcom,qpnp-pin";
            spmi-dev-container;
            gpio-controller;
            #gpio-cells = <2>;
            #address-cells = <1>;
            #size-cells = <1>;
            label = "pm8953-mpp";

            mpp@a000 {
                reg = <0xa000 0x100>;
                qcom,pin-num = <1>;
                status = "disabled";
            };

            mpp@a100 {
                reg = <0xa100 0x100>;
                qcom,pin-num = <2>;
            };

            mpp@a200 {
                reg = <0xa200 0x100>;
                qcom,pin-num = <3>;
                status = "disabled";
            };

            mpp@a300 {
                reg = <0xa300 0x100>;
                qcom,pin-num = <4>;
            };
        };

        pm8953_gpios: gpios {
            spmi-dev-container;
            compatible = "qcom,qpnp-pin";
            gpio-controller;
            #gpio-cells = <2>;
            #address-cells = <1>;
            #size-cells = <1>;
            label = "pm8953-gpio";

            gpio@c000 {
                reg = <0xc000 0x100>;
                qcom,pin-num = <1>;
                status = "disabled";
            };

            gpio@c100 {
                reg = <0xc100 0x100>;
                qcom,pin-num = <2>;
                status = "disabled";
            };

            gpio@c200 {
                reg = <0xc200 0x100>;
                qcom,pin-num = <3>;
                status = "disabled";
            };

            gpio@c300 {
                reg = <0xc300 0x100>;
                qcom,pin-num = <4>;
                status = "disabled";
            };

            gpio@c400 {
                reg = <0xc400 0x100>;
                qcom,pin-num = <5>;
                status = "disabled";
            };

            gpio@c500 {
                reg = <0xc500 0x100>;
                qcom,pin-num = <6>;
                status = "disabled";
            };

            gpio@c600 {
                reg = <0xc600 0x100>;
                qcom,pin-num = <7>;
                status = "disabled";
            };

            gpio@c700 {
                reg = <0xc700 0x100>;
                qcom,pin-num = <8>;
                status = "disabled";
            };
        };

        pm8953_vadc: vadc@3100 {
            compatible = "qcom,qpnp-vadc";
            reg = <0x3100 0x100>;
            #address-cells = <1>;
            #size-cells = <0>;
            interrupts = <0x0 0x31 0x0>;
            interrupt-names = "eoc-int-en-set";
            qcom,adc-bit-resolution = <15>;
            qcom,adc-vdd-reference = <1800>;
            qcom,vadc-poll-eoc;

            chan@8 {
                label = "die_temp";
                reg = <8>;
                qcom,decimation = <0>;
                qcom,pre-div-channel-scaling = <0>;
                qcom,calibration-type = "absolute";
                qcom,scale-function = <3>;
                qcom,hw-settle-time = <0>;
                qcom,fast-avg-setup = <0>;
            };

            chan@9 {
                label = "ref_625mv";
                reg = <9>;
                qcom,decimation = <0>;
                qcom,pre-div-channel-scaling = <0>;
                qcom,calibration-type = "absolute";
                qcom,scale-function = <0>;
                qcom,hw-settle-time = <0>;
                qcom,fast-avg-setup = <0>;
            };

            chan@a {
                label = "ref_1250v";
                reg = <0xa>;
                qcom,decimation = <0>;
                qcom,pre-div-channel-scaling = <0>;
                qcom,calibration-type = "absolute";
                qcom,scale-function = <0>;
                qcom,hw-settle-time = <0>;
                qcom,fast-avg-setup = <0>;
            };

            chan@c {
                label = "ref_buf_625mv";
                reg = <0xc>;
                qcom,decimation = <0>;
                qcom,pre-div-channel-scaling = <0>;
                qcom,calibration-type = "absolute";
                qcom,scale-function = <0>;
                qcom,hw-settle-time = <0>;
                qcom,fast-avg-setup = <0>;
            };
        };

        pm8953_adc_tm: vadc@3400 {
            compatible = "qcom,qpnp-adc-tm";
            reg = <0x3400 0x100>;
            #address-cells = <1>;
            #size-cells = <0>;
            interrupts =    <0x0 0x34 0x0>,
                    <0x0 0x34 0x3>,
                    <0x0 0x34 0x4>;
            interrupt-names =   "eoc-int-en-set",
                        "high-thr-en-set",
                        "low-thr-en-set";
            qcom,adc-bit-resolution = <15>;
            qcom,adc-vdd-reference = <1800>;
            qcom,adc_tm-vadc = <&pm8953_vadc>;

        };

        pm8953_rtc: qcom,pm8953_rtc {
            spmi-dev-container;
            compatible = "qcom,qpnp-rtc";
            #address-cells = <1>;
            #size-cells = <1>;
            qcom,qpnp-rtc-write = <0>;
            qcom,qpnp-rtc-alarm-pwrup = <0>;

            qcom,pm8953_rtc_rw@6000 {
                reg = <0x6000 0x100>;
            };

            qcom,pm8953_rtc_alarm@6100 {
                reg = <0x6100 0x100>;
                interrupts = <0x0 0x61 0x1>;
            };
        };

        pm8953_typec: qcom,pm8953_typec@bf00 {
            status = "disable";
            compatible = "qcom,qpnp-typec";
            reg = <0xbf00 0x100>;
            interrupts =    <0x0 0xbf 0x0>,
                    <0x0 0xbf 0x1>,
                    <0x0 0xbf 0x2>,
                    <0x0 0xbf 0x3>,
                    <0x0 0xbf 0x4>,
                    <0x0 0xbf 0x6>,
                    <0x0 0xbf 0x7>;

            interrupt-names =       "vrd-change",
                        "ufp-detect",
                        "ufp-detach",
                        "dfp-detect",
                        "dfp-detach",
                        "vbus-err",
                        "vconn-oc";
        };
    };

    pm8953_1: qcom,pm8953@1 {
        spmi-slave-container;
        reg = <0x1>;
        #address-cells = <1>;
        #size-cells = <1>;

        pm8953_pwm: pwm@bc00 {
            status = "disabled";
            compatible = "qcom,qpnp-pwm";
            reg = <0xbc00 0x100>;
            reg-names = "qpnp-lpg-channel-base";
            qcom,channel-id = <0>;
            qcom,supported-sizes = <6>, <9>;
            #pwm-cells = <2>;
        };
    };
};

Liu Tao

2019-3-5

转载于:https://www.cnblogs.com/helloworldtoyou/p/10478427.html

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msm8953+android8.1接听电话时声音由默认听筒输出改为外放输出
LoongEmbedded的专栏
05-16 1887
1. 方法一，修改frameworks/av//services/audiopolicy/enginedefault/src/Engine.cpp Engine::getDeviceForStrategyInt()函数的case STRATEGY_PHONE下 switch (mForceUse[AUDIO_POLICY_FORCE_FOR_COMMUNICATION]) { ...
[Linux Audio Driver] MSM8953音频部分设备树调用关系
编程菜汝狗
09-09 1122
这个是以前实习的时候画的图，调用关系是后面的覆盖前面的，右边的覆盖左边的。 （此图为例-第二个加载的会覆盖第一个加载的） 如上图，一般我习惯使用msm8953-audio.dtsi
解决msm8953 mic 录音底噪问题
houyizi337825770的专栏
04-09 1627
--- a/kernel/msm-3.18/arch/arm/boot/dts/qcom/msm-audio.dtsi +++ b/kernel/msm-3.18/arch/arm/boot/dts/qcom/msm-audio.dtsi @@ -323,12 +323,12 @@ "RX_BIAS", "MCLK", ...
Linux DTS(Device Tree Source)设备树详解之三(高通MSM8953实例分析篇)
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Radia的专栏
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本系列导航： Linux DTS(Device Tree Source)设备树详解之一 Linux DTS(Device Tree Source)设备树详解之二 在前两篇中我们了解了DTS的背景基础知识以及发挥作用的流程，这篇文章我们以高通的MSM8953平台为例来添加一个基础的i2c设备（包含一个gpio中断）。 1，首先我们在该i2c设备的驱动中找到了匹配设备与
高通8xxx平台双MIC设置
晒太阳
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dts文件修改：   qcom,audio-routing =    "RX_BIAS", "MCLK",    "LDO_H", "MCLK",    "SPK_OUT", "MCLK",    "SPK_OUT", "EXT_VDD_SPKR",    "Lineout_1 amp", "LINEOUT1",    "Lineout_2 amp", "LINEOUT2",
Android Qcom Audio入门学习
Android驱动开发
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在devictree中可以发现有其实在PIL驱动并没有发生image加载过程,真正的加载有对应的子模块处理中，adsp就是在adsp-loader.c中通过init.qcom.rc启动时 write /sys/kernel/boot_adsp/boot 1 ,之后就会subsystem_get(“adsp”)获取并加载;其他例如slpi, 要看高通不同的平台子模块的组成，有些PIL是没有load slpi模块，sensor也是adsp中，
高通平台的耳机检测(msm8909)
Android开发
04-08 1万+
          记录高通msm8909耳机检测的机制，相关代码 kernel/arch/arm/boot/dts/qcom/msm8909-qrd-skuc.dtsi sound { compatible = "qcom,msm8x16-audio-codec"; qcom,model = "msm8909-skuc-snd-card"; qcom,msm-snd-card...
qcom,msm-cpudai-tdm-sync-src = <1>
最新发布
06-17
建议在以下路径查找：-设备树文件：`arch/arm/boot/dts/qcom/`（对于ARM平台）或`arch/arm64/boot/dts/qcom/`（对于ARM64平台）-驱动代码：`sound/soc/qcom/msm-dai-tdm.c`或类似文件###注意事项1.不同平台（如msm...
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