diff options
| author | Adam Ford <aford173@gmail.com> | 2023-10-08 17:02:38 +0300 |
|---|---|---|
| committer | Shawn Guo <shawnguo@kernel.org> | 2023-10-10 06:06:02 +0300 |
| commit | b4383609a00984513fe5673c80905c7fae139537 (patch) | |
| tree | 6ecc246a6fe4973d668bea380fd53e6a5cc40657 /arch/arm64/boot/dts/freescale | |
| parent | 2b49b88927d4f97d9abe3958a5dd52c2f47a3014 (diff) | |
| download | linux-b4383609a00984513fe5673c80905c7fae139537.tar.xz | |
arm64: dts: imx8mp-beacon: Add DMIC support
The baseboard has a connector for a pulse density microphone.
This is connected via the micfil interface and uses the DMIC
audio codec with the simple-audio-card.
Signed-off-by: Adam Ford <aford173@gmail.com>
Reviewed-by: Fabio Estevam <festevam@gmail.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
Diffstat (limited to 'arch/arm64/boot/dts/freescale')
| -rw-r--r-- | arch/arm64/boot/dts/freescale/imx8mp-beacon-kit.dts | 43 |
1 files changed, 43 insertions, 0 deletions
diff --git a/arch/arm64/boot/dts/freescale/imx8mp-beacon-kit.dts b/arch/arm64/boot/dts/freescale/imx8mp-beacon-kit.dts index 5c90788ab6a1..0bea0798d2db 100644 --- a/arch/arm64/boot/dts/freescale/imx8mp-beacon-kit.dts +++ b/arch/arm64/boot/dts/freescale/imx8mp-beacon-kit.dts @@ -55,6 +55,12 @@ }; }; + dmic_codec: dmic-codec { + compatible = "dmic-codec"; + num-channels = <1>; + #sound-dai-cells = <0>; + }; + gpio-keys { compatible = "gpio-keys"; autorepeat; @@ -147,6 +153,22 @@ enable-active-high; }; + sound-dmic { + compatible = "simple-audio-card"; + simple-audio-card,name = "sound-pdm"; + simple-audio-card,format = "i2s"; + simple-audio-card,bitclock-master = <&dailink_master>; + simple-audio-card,frame-master = <&dailink_master>; + + dailink_master: simple-audio-card,cpu { + sound-dai = <&micfil>; + }; + + simple-audio-card,codec { + sound-dai = <&dmic_codec>; + }; + }; + sound-wm8962 { compatible = "simple-audio-card"; simple-audio-card,name = "wm8962"; @@ -174,6 +196,11 @@ }; }; +&audio_blk_ctrl { + assigned-clocks = <&clk IMX8MP_AUDIO_PLL1>, <&clk IMX8MP_AUDIO_PLL2>; + assigned-clock-rates = <393216000>, <135475200>; +}; + &ecspi2 { pinctrl-names = "default"; pinctrl-0 = <&pinctrl_ecspi2>; @@ -371,6 +398,15 @@ }; }; +&micfil { + pinctrl-names = "default"; + pinctrl-0 = <&pinctrl_pdm>; + assigned-clocks = <&clk IMX8MP_CLK_PDM>; + assigned-clock-parents = <&clk IMX8MP_AUDIO_PLL1_OUT>; + assigned-clock-rates = <49152000>; + status = "okay"; +}; + &pcie { pinctrl-names = "default"; pinctrl-0 = <&pinctrl_pcie>; @@ -553,6 +589,13 @@ >; }; + pinctrl_pdm: pdmgrp { + fsl,pins = < + MX8MP_IOMUXC_SAI5_RXC__AUDIOMIX_PDM_CLK 0xd6 + MX8MP_IOMUXC_SAI5_RXD0__AUDIOMIX_PDM_BIT_STREAM00 0xd6 + >; + }; + pinctrl_reg_usdhc2_vmmc: regusdhc2vmmcgrp { fsl,pins = < MX8MP_IOMUXC_SD2_RESET_B__GPIO2_IO19 0x40 |