From: Codrin Ciubotariu <codrin.ciubotariu@microchip.com>
To: <alsa-devel@alsa-project.org>, <linux-kernel@vger.kernel.org>,
<devicetree@vger.kernel.org>,
<linux-arm-kernel@lists.infradead.org>
Cc: <lars@metafoo.de>, <broonie@kernel.org>, <perex@perex.cz>,
<tiwai@suse.com>, <robh+dt@kernel.org>,
<nicolas.ferre@microchip.com>,
"Codrin Ciubotariu" <codrin.ciubotariu@microchip.com>
Subject: [PATCH v3 0/6] Add driver for SAMA7G5's PDMC
Date: Mon, 7 Mar 2022 14:21:56 +0200 [thread overview]
Message-ID: <20220307122202.2251639-1-codrin.ciubotariu@microchip.com> (raw)
This patch series adds support for Pulse Density Microphone Controller
(PDMC), present on Microchip's SAMA7G5.
The PDMC interfaces up to 4 digital microphones having Pulse Density
Modulated (PDM) outputs. It generates a single clock line and samples 1 or
2 data lines. The signal path includes an audio grade programmable
decimation filter and outputs 24-bit audio words.
The source of each channel can be independently defined as PDMC_DS0 or
PDMC_DS1, sampled at the rising or falling edge of PDMC_CLK.
The patch series starts with a fix on the ASoC DMA engine support. Then
continues with the bindings and the driver of PDMC. It is followed by the
DT nodes for SAMA7G5 and SAMA7G5-EK. In the end, the drivers for PDMC
and PDM microphones are enabled in sama7_defconfig.
Changes in v3:
- addressed new DT bindings comments from Krzysztof Kozlowski
Changes in v2:
- addressed DT bindings comments from Krzysztof Kozlowski
Codrin Ciubotariu (6):
ASoC: dmaengine: do not use a NULL prepare_slave_config() callback
ASoC: dt-bindings: Document Microchip's PDMC
ASoC: atmel: mchp-pdmc: add PDMC driver
ARM: dts: at91: sama7g5: add nodes for PDMC
ARM: dts: at91: sama7g5ek: add node for PDMC0
ARM: configs: at91: sama7_defconfig: add MCHP PDMC and DMIC drivers
.../bindings/sound/microchip,pdmc.yaml | 100 ++
arch/arm/boot/dts/at91-sama7g5ek.dts | 21 +-
arch/arm/boot/dts/sama7g5.dtsi | 24 +
arch/arm/configs/sama7_defconfig | 2 +
include/dt-bindings/sound/microchip,pdmc.h | 13 +
sound/soc/atmel/Kconfig | 16 +
sound/soc/atmel/Makefile | 2 +
sound/soc/atmel/mchp-pdmc.c | 1084 +++++++++++++++++
sound/soc/soc-generic-dmaengine-pcm.c | 6 +-
9 files changed, 1264 insertions(+), 4 deletions(-)
create mode 100644 Documentation/devicetree/bindings/sound/microchip,pdmc.yaml
create mode 100644 include/dt-bindings/sound/microchip,pdmc.h
create mode 100644 sound/soc/atmel/mchp-pdmc.c
--
2.32.0
next reply other threads:[~2022-03-07 12:23 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-03-07 12:21 Codrin Ciubotariu [this message]
2022-03-07 12:21 ` [PATCH v3 1/6] ASoC: dmaengine: do not use a NULL prepare_slave_config() callback Codrin Ciubotariu
2022-04-20 9:15 ` Sascha Hauer
2022-04-20 9:58 ` Codrin.Ciubotariu
2022-04-20 10:06 ` Sascha Hauer
2022-04-20 10:17 ` Codrin.Ciubotariu
2022-03-07 12:21 ` [PATCH v3 2/6] ASoC: dt-bindings: Document Microchip's PDMC Codrin Ciubotariu
2022-03-07 19:05 ` Krzysztof Kozlowski
2022-03-07 12:21 ` [PATCH v3 3/6] ASoC: atmel: mchp-pdmc: add PDMC driver Codrin Ciubotariu
2022-03-07 12:22 ` [PATCH v3 4/6] ARM: dts: at91: sama7g5: add nodes for PDMC Codrin Ciubotariu
2022-03-07 12:22 ` [PATCH v3 5/6] ARM: dts: at91: sama7g5ek: add node for PDMC0 Codrin Ciubotariu
2022-03-07 12:22 ` [PATCH v3 6/6] ARM: configs: at91: sama7_defconfig: add MCHP PDMC and DMIC drivers Codrin Ciubotariu
2022-05-05 13:58 ` Nicolas Ferre
2022-05-05 14:47 ` Codrin.Ciubotariu
2022-05-05 15:01 ` Mark Brown
2022-05-05 15:07 ` Nicolas Ferre
2022-03-08 17:21 ` (subset) [PATCH v3 0/6] Add driver for SAMA7G5's PDMC Mark Brown
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