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dts: st: g4: add sai node for stm32g4xx #93480

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dts: st: g4: add sai node for stm32g4xx #93480

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cb0eb7a
dts: st: g4: add sai node for stm32g4xx
mariopaja Jul 22, 2025
bdb1002
samples: i2s: output: add nucleo_g431kb
mariopaja Jul 24, 2025
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23 changes: 23 additions & 0 deletions dts/arm/st/g4/stm32g4.dtsi
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Original file line number Diff line number Diff line change
Expand Up @@ -2,6 +2,7 @@
* Copyright (c) 2021 The Chromium OS Authors
* Copyright (c) 2019 Richard Osterloh <richard.osterloh@gmail.com>
* Copyright (c) 2024 STMicroelectronics
* Copyright (c) 2025 Mario Paja <mariopaja@hotmail.com>
*
* SPDX-License-Identifier: Apache-2.0
*/
Expand Down Expand Up @@ -663,6 +664,28 @@
interrupts = <63 0>;
status = "disabled";
};

sai1_a: sai1@40015404 {
compatible = "st,stm32-sai";
#address-cells = <1>;
#size-cells = <0>;
reg = <0x40015404 0x20>;
clocks = <&rcc STM32_CLOCK(APB2, 21)>;
dmas = <&dma1 1 108 (STM32_DMA_MODE_NORMAL | STM32_DMA_PRIORITY_HIGH |
STM32_DMA_16BITS)>;
status = "disabled";
};

sai1_b: sai1@40015424 {
compatible = "st,stm32-sai";
#address-cells = <1>;
#size-cells = <0>;
reg = <0x40015424 0x20>;
clocks = <&rcc STM32_CLOCK(APB2, 21)>;
dmas = <&dma1 0 109 (STM32_DMA_MODE_NORMAL | STM32_DMA_PRIORITY_HIGH |
STM32_DMA_16BITS)>;
status = "disabled";
};
};

die_temp: dietemp {
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1 change: 1 addition & 0 deletions samples/drivers/i2s/output/boards/nucleo_g431kb.conf
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@@ -0,0 +1 @@
CONFIG_HEAP_MEM_POOL_SIZE=4192
32 changes: 32 additions & 0 deletions samples/drivers/i2s/output/boards/nucleo_g431kb.overlay
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@@ -0,0 +1,32 @@
/*
* Copyright (c) 2025 Mario Paja <mariopaja@hotmail.com>
*
* SPDX-License-Identifier: Apache-2.0
*/

/ {
aliases {
i2s-tx = &sai1_a;
};
};

&pll {
/* 44.1KHz (-0.03% Error) */
div-q = <8>;
};

&sai1_a {
pinctrl-0 = <&sai1_sd_a_pa10 &sai1_fs_a_pa9
&sai1_sck_a_pa8>;
pinctrl-names = "default";
status = "okay";
dma-names = "tx";
};

&dma1{
status = "okay";
};

&dmamux1{
status = "okay";
};
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