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boards: Update Xiao_BLE Sense DTS for pdm microphone

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Create regulator on GPIO for microphone supply
Set pdm data and clk pins in pinctrl
Add xiao_ble_sense overlay for dmic sample support

Signed-off-by: Zak Portnoy <zakportnoy@gmail.com>
This commit is contained in:
Zak Portnoy 2024-03-17 10:22:57 +02:00 committed by David Leach
parent 6f01329e9d
commit 5cbc16ac2c
3 changed files with 40 additions and 0 deletions
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15
boards/seeed/xiao_ble/xiao_ble-pinctrl.dtsi
View file

@ -52,6 +52,21 @@
};
};
pdm0_default: pdm0_default {
group1 {
psels = <NRF_PSEL(PDM_CLK, 1, 00)>,
<NRF_PSEL(PDM_DIN, 0, 16)>;
};
};
pdm0_sleep: pdm0_sleep {
group1 {
psels = <NRF_PSEL(PDM_CLK, 1, 00)>,
<NRF_PSEL(PDM_DIN, 0, 16)>;
low-power-enable;
};
};
pwm0_default: pwm0_default {
group1 {
psels = <NRF_PSEL(PWM_OUT0, 0, 17)>;

13
boards/seeed/xiao_ble/xiao_ble_nrf52840_sense.dts
View file

@ -13,6 +13,12 @@
model = "Seeed XIAO BLE Sense";
compatible = "seeed,xiao-ble", "seeed,xiao-ble-sense";
msm261d3526hicpm-c-en {
compatible = "regulator-fixed";
enable-gpios = <&gpio1 10 (NRF_GPIO_DRIVE_S0H1 | GPIO_ACTIVE_HIGH)>;
regulator-name = "MSM261D3526HICPM-C-EN";
};
lsm6ds3tr-c-en {
compatible = "regulator-fixed-sync", "regulator-fixed";
enable-gpios = <&gpio1 8 (NRF_GPIO_DRIVE_S0H1 | GPIO_ACTIVE_HIGH)>;
@ -38,3 +44,10 @@
status = "okay";
};
};
&pdm0 {
pinctrl-0 = <&pdm0_default>;
pinctrl-1 = <&pdm0_sleep>;
pinctrl-names = "default", "sleep";
clock-source = "PCLK32M";
};

12
samples/drivers/audio/dmic/boards/xiao_ble_nrf52840_sense.overlay Normal file
View file

@ -0,0 +1,12 @@
/*
* SPDX-License-Identifier: Apache-2.0
*/
/ {
msm261d3526hicpm-c-en {
regulator-boot-on;
};
};
dmic_dev: &pdm0 {
status = "okay";
};