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;
};
};
};Liu Tao
2019-3-5