Searched +full:stm32 +full:- +full:dfsdm +full:- +full:pdm (Results 1 – 3 of 3) sorted by relevance
1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)3 ---4 $id: http://devicetree.org/schemas/iio/adc/st,stm32-dfsdm-adc.yaml#5 $schema: http://devicetree.org/meta-schemas/core.yaml#7 title: STMicroelectronics STM32 DFSDM ADC device driver10 - Fabrice Gasnier <fabrice.gasnier@st.com>11 - Olivier Moysan <olivier.moysan@st.com>14 STM32 DFSDM ADC is a sigma delta analog-to-digital converter dedicated to15 interface external sigma delta modulators to STM32 micro controllers.17 - Sigma delta modulators (motor control, metering...)[all …]
1 STMicroelectronics Audio Digital Filter Sigma Delta modulators(DFSDM)3 The DFSDM allows PDM microphones capture through SPI interface. The Audio4 interface is seems as a sub block of the DFSDM device.5 For details on DFSDM bindings refer to ../iio/adc/st,stm32-dfsdm-adc.txt8 - compatible: "st,stm32h7-dfsdm-dai".10 - #sound-dai-cells : Must be equal to 012 - io-channels : phandle to iio dfsdm instance node.14 Example of a sound card using audio DFSDM node.17 compatible = "audio-graph-card";22 dfsdm: dfsdm@40017000 {[all …]
1 // SPDX-License-Identifier: GPL-2.03 * This file is the ADC part of the STM32 DFSDM driver5 * Copyright (C) 2017, STMicroelectronics - All Rights Reserved10 #include <linux/dma-mapping.h>11 #include <linux/iio/adc/stm32-dfsdm-adc.h>13 #include <linux/iio/hw-consumer.h>15 #include <linux/iio/timer/stm32-lptim-trigger.h>16 #include <linux/iio/timer/stm32-timer-trigger.h>27 #include "stm32-dfsdm.h"42 /* Limit filter output resolution to 31 bits. (i.e. sample range is +/-2^30) */[all …]
