[PATCH] ARM: dts: omap3-echo: Add speaker sound card support
From: André Hentschel <hidden>
Date: 2020-12-27 17:22:26
Also in:
linux-omap, lkml
Subsystem:
the rest · Maintainer:
Linus Torvalds
This adds audio playback to the first generation Amazon Echo Signed-off-by: André Hentschel <redacted> --- It took me by far too long to get this working as the codec sets one important bit based on the combination of provided supplies. That was just too hidden for me. The first generation Amazon Echo was codenamed Misto, so I used that for the sound card name. arch/arm/boot/dts/omap3-echo.dts | 67 ++++++++++++++++++++++++++++++++ 1 file changed, 67 insertions(+)
diff --git a/arch/arm/boot/dts/omap3-echo.dts b/arch/arm/boot/dts/omap3-echo.dts
index 93ffeddada1e..b9fd113979f2 100644
--- a/arch/arm/boot/dts/omap3-echo.dts
+++ b/arch/arm/boot/dts/omap3-echo.dts@@ -86,6 +86,38 @@ &gpio3 12 GPIO_ACTIVE_HIGH /* GPIO_76 */ linux,axis = <REL_X>; rotary-encoder,relative-axis; }; + + speaker_amp: speaker-amplifier { + compatible = "simple-audio-amplifier"; + enable-gpios = <&gpio5 1 GPIO_ACTIVE_HIGH>; /* gpio_129 */ + sound-name-prefix = "Speaker Amp"; + VCC-supply = <&vcc1v8>; + }; + + sound { + compatible = "simple-audio-card"; + simple-audio-card,name = "Misto Speaker"; + simple-audio-card,widgets = + "Speaker", "Speaker"; + simple-audio-card,routing = + "Speaker Amp INL", "HPL", + "Speaker Amp INR", "HPR", + "Speaker", "Speaker Amp OUTL", + "Speaker", "Speaker Amp OUTR"; + simple-audio-card,format = "i2s"; + simple-audio-card,bitclock-master = <&sound_master>; + simple-audio-card,frame-master = <&sound_master>; + simple-audio-card,aux-devs = <&speaker_amp>; + + simple-audio-card,cpu { + sound-dai = <&mcbsp2>; + }; + + sound_master: simple-audio-card,codec { + sound-dai = <&codec0>; + system-clock-frequency = <19200000>; + }; + }; }; &i2c1 {
@@ -96,6 +128,13 @@ tps: tps@2d { }; }; +&mcbsp2 { + status = "okay"; + #sound-dai-cells = <0>; + pinctrl-names = "default"; + pinctrl-0 = <&mcbsp2_pins>; +}; + &i2c2 { clock-frequency = <400000>;
@@ -277,6 +316,22 @@ chan8 { }; }; +&i2c3 { + clock-frequency = <400000>; + + codec0: codec@18 { + #sound-dai-cells = <0>; + compatible = "ti,tlv320aic32x4"; + reg = <0x18>; + clocks = <&sys_clkout1>; + clock-names = "mclk"; + ldoin-supply = <&vcc1v8>; + iov-supply = <&vcc1v8>; + reset-gpios = <&gpio3 10 GPIO_ACTIVE_LOW>; /* gpio_74 */ + }; +}; + + #include "tps65910.dtsi" &omap3_pmx_core {
@@ -290,6 +345,9 @@ button_pins: pinmux_button_pins { pinctrl-single,pins = < OMAP3_CORE1_IOPAD(0x20dc, PIN_INPUT | MUX_MODE4) /* dss_data0.gpio_70 */ OMAP3_CORE1_IOPAD(0x20e0, PIN_INPUT | MUX_MODE4) /* dss_data2.gpio_72 */ + OMAP3_CORE1_IOPAD(0x20e4, PIN_OUTPUT | MUX_MODE4) /* dss_data4.gpio_74 */ + OMAP3_CORE1_IOPAD(0x20fa, PIN_OUTPUT_PULLDOWN | MUX_MODE4) /* dss_data15.gpio_85 */ + OMAP3_CORE1_IOPAD(0x2a1a, PIN_OUTPUT | MUX_MODE0) /* sys_clkout1.sys_clkout1 */ >; };
@@ -318,6 +376,15 @@ OMAP3_CORE1_IOPAD(0x2168, PIN_INPUT_PULLUP | MUX_MODE0) /* sdmmc2_dat6.sdmmc2_d OMAP3_CORE1_IOPAD(0x216a, PIN_INPUT_PULLUP | MUX_MODE0) /* sdmmc2_dat7.sdmmc2_dat7 */ >; }; + + mcbsp2_pins: pinmux_mcbsp2_pins { + pinctrl-single,pins = < + OMAP3_CORE1_IOPAD(0x213c, PIN_INPUT | MUX_MODE0) /* mcbsp2_fsx.mcbsp2_fsx */ + OMAP3_CORE1_IOPAD(0x213e, PIN_INPUT | MUX_MODE0) /* mcbsp2_clkx.mcbsp2_clkx */ + OMAP3_CORE1_IOPAD(0x2140, PIN_INPUT | MUX_MODE0) /* mcbsp2_dr.mcbsp2.dr */ + OMAP3_CORE1_IOPAD(0x2142, PIN_OUTPUT | MUX_MODE0) /* mcbsp2_dx.mcbsp2_dx */ + >; + }; }; &omap3_pmx_core2 {
--
2.25.1