December 2017 - Alsa-devel - mailman.alsa-project.org

[alsa-devel] [PATCH V3 0/2] ARM: dts: bcm283x: Fix probing of bcm2835-i2s
by Stefan Wahren 17 Jan '18

17 Jan '18

This small series fixes the probing of bcm2835-i2s, which is broken since 517e7a1537a ("ASoC: bcm2835: move to use the clock framework"). Changes in V3: * split up patch into dt-binding and functional part Changes in V2: * add Fixes, Reviewed-by and Tested-by tags Stefan Wahren (2): dt-bindings: bcm283x: Fix register ranges of bcm2835-i2s ARM: dts: bcm283x: Fix probing of bcm2835-i2s Documentation/devicetree/bindings/dma/brcm,bcm2835-dma.txt | 4 ++-- Documentation/devicetree/bindings/sound/brcm,bcm2835-i2s.txt | 9 ++++----- arch/arm/boot/dts/bcm283x.dtsi | 4 ++-- 3 files changed, 8 insertions(+), 9 deletions(-) -- 2.7.4

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[alsa-devel] Silencing plops / click sounds on start / stop of playing audio when snd_hda_intel.power_save=1
by Hans de Goede 17 Jan '18

17 Jan '18

Hi All, For Fedora 28 we plan to ship the kernel with snd_hda_intel.power_save defaulting to 1: https://fedoraproject.org/wiki/Changes/ImprovedLaptopBatteryLife We've had an update for F27 in updates-testing for a while which made the same change for F27, but we've received several bug reports about plops / click sounds on start / stop of playing audio: https://bugzilla.redhat.com/show_bug.cgi?id=1525104 I know others have probably already tried fixing this, but I'm wondering if there are any ideas how to fix this / things to try? Ideas of my own: 1) Mute the speakers / headphone output in the mixer before activating power-saving. Question how hard would it be to make this happen? 2) Put a delay between various steps involved in turning things off / on. Regards, Hans

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[alsa-devel] [PATCH 1/4] ASoC: codecs: tas5720: add basic support for TAS5722 devices
by Andrew F. Davis 15 Jan '18

15 Jan '18

From: Andreas Dannenberg <dannenberg(a)ti.com> The TI TAS5722 digital amplifier is very similar to the TAS5720 from an overall and register map perspective. Therefore the existing driver can be extended easily to support this additional device. This commit allows TAS5722 devices to be used in a "subset" type of fashion, without exposing any of the additional features they offer. Signed-off-by: Andreas Dannenberg <dannenberg(a)ti.com> Signed-off-by: Andrew F. Davis <afd(a)ti.com> --- .../devicetree/bindings/sound/tas5720.txt | 4 ++- sound/soc/codecs/tas5720.c | 38 ++++++++++++++++++---- sound/soc/codecs/tas5720.h | 1 + 3 files changed, 35 insertions(+), 8 deletions(-) diff --git a/Documentation/devicetree/bindings/sound/tas5720.txt b/Documentation/devicetree/bindings/sound/tas5720.txt index 40d94f82beb3..7481653fe8e3 100644 --- a/Documentation/devicetree/bindings/sound/tas5720.txt +++ b/Documentation/devicetree/bindings/sound/tas5720.txt @@ -6,10 +6,12 @@ audio playback. For more product information please see the links below: http://www.ti.com/product/TAS5720L http://www.ti.com/product/TAS5720M +http://www.ti.com/product/TAS5722L Required properties: -- compatible : "ti,tas5720" +- compatible : "ti,tas5720", + "ti,tas5722" - reg : I2C slave address - dvdd-supply : phandle to a 3.3-V supply for the digital circuitry - pvdd-supply : phandle to a supply used for the Class-D amp and the analog diff --git a/sound/soc/codecs/tas5720.c b/sound/soc/codecs/tas5720.c index a736a2a6976c..5def54d1336d 100644 --- a/sound/soc/codecs/tas5720.c +++ b/sound/soc/codecs/tas5720.c @@ -36,6 +36,11 @@ /* Define how often to check (and clear) the fault status register (in ms) */ #define TAS5720_FAULT_CHECK_INTERVAL 200 +enum tas572x_type { + TAS5720, + TAS5722, +}; + static const char * const tas5720_supply_names[] = { "dvdd", /* Digital power supply. Connect to 3.3-V supply. */ "pvdd", /* Class-D amp and analog power supply (connected). */ @@ -47,6 +52,7 @@ struct tas5720_data { struct snd_soc_codec *codec; struct regmap *regmap; struct i2c_client *tas5720_client; + enum tas572x_type devtype; struct regulator_bulk_data supplies[TAS5720_NUM_SUPPLIES]; struct delayed_work fault_check_work; unsigned int last_fault; @@ -264,7 +270,7 @@ static void tas5720_fault_check_work(struct work_struct *work) static int tas5720_codec_probe(struct snd_soc_codec *codec) { struct tas5720_data *tas5720 = snd_soc_codec_get_drvdata(codec); - unsigned int device_id; + unsigned int device_id, expected_device_id; int ret; tas5720->codec = codec; @@ -276,6 +282,11 @@ static int tas5720_codec_probe(struct snd_soc_codec *codec) return ret; } + /* + * Take a liberal approach to checking the device ID to allow the + * driver to be used even if the device ID does not match, however + * issue a warning if there is a mismatch. + */ ret = regmap_read(tas5720->regmap, TAS5720_DEVICE_ID_REG, &device_id); if (ret < 0) { dev_err(codec->dev, "failed to read device ID register: %d\n", @@ -283,13 +294,22 @@ static int tas5720_codec_probe(struct snd_soc_codec *codec) goto probe_fail; } - if (device_id != TAS5720_DEVICE_ID) { - dev_err(codec->dev, "wrong device ID. expected: %u read: %u\n", - TAS5720_DEVICE_ID, device_id); - ret = -ENODEV; - goto probe_fail; + switch (tas5720->devtype) { + case TAS5720: + expected_device_id = TAS5720_DEVICE_ID; + break; + case TAS5722: + expected_device_id = TAS5722_DEVICE_ID; + break; + default: + dev_err(codec->dev, "unexpected private driver data\n"); + return -EINVAL; } + if (device_id != expected_device_id) + dev_warn(codec->dev, "wrong device ID. expected: %u read: %u\n", + expected_device_id, device_id); + /* Set device to mute */ ret = snd_soc_update_bits(codec, TAS5720_DIGITAL_CTRL2_REG, TAS5720_MUTE, TAS5720_MUTE); @@ -552,6 +572,8 @@ static int tas5720_probe(struct i2c_client *client, return -ENOMEM; data->tas5720_client = client; + data->devtype = id->driver_data; + data->regmap = devm_regmap_init_i2c(client, &tas5720_regmap_config); if (IS_ERR(data->regmap)) { ret = PTR_ERR(data->regmap); @@ -592,7 +614,8 @@ static int tas5720_remove(struct i2c_client *client) } static const struct i2c_device_id tas5720_id[] = { - { "tas5720", 0 }, + { "tas5720", TAS5720 }, + { "tas5722", TAS5722 }, { } }; MODULE_DEVICE_TABLE(i2c, tas5720_id); @@ -600,6 +623,7 @@ MODULE_DEVICE_TABLE(i2c, tas5720_id); #if IS_ENABLED(CONFIG_OF) static const struct of_device_id tas5720_of_match[] = { { .compatible = "ti,tas5720", }, + { .compatible = "ti,tas5722", }, { }, }; MODULE_DEVICE_TABLE(of, tas5720_of_match); diff --git a/sound/soc/codecs/tas5720.h b/sound/soc/codecs/tas5720.h index 3d077c779b12..bef802afcc69 100644 --- a/sound/soc/codecs/tas5720.h +++ b/sound/soc/codecs/tas5720.h @@ -32,6 +32,7 @@ /* TAS5720_DEVICE_ID_REG */ #define TAS5720_DEVICE_ID 0x01 +#define TAS5722_DEVICE_ID 0x12 /* TAS5720_POWER_CTRL_REG */ #define TAS5720_DIG_CLIP_MASK GENMASK(7, 2) -- 2.15.0

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[alsa-devel] [PATCH v3 00/27] kill devm_ioremap_nocache
by Yisheng Xie 12 Jan '18

12 Jan '18

Hi all, When I tried to use devm_ioremap function and review related code, I found devm_ioremap and devm_ioremap_nocache is almost the same with each other, except one use ioremap while the other use ioremap_nocache. While ioremap's default function is ioremap_nocache, so devm_ioremap_nocache also have the same function with devm_ioremap, which can just be killed to reduce the size of devres.o(from 20304 bytes to 18992 bytes in my compile environment). I have posted two versions, which use macro instead of function for devm_ioremap_nocache[1] or devm_ioremap[2]. And Greg suggest me to kill devm_ioremap_nocache for no need to keep a macro around for the duplicate thing. So here comes v3 and please help to review. Thanks so much! Yisheng Xie [1] https://lkml.org/lkml/2017/11/20/135 [2] https://lkml.org/lkml/2017/11/25/21 Yisheng Xie (27): ASOC: replace devm_ioremap_nocache with devm_ioremap spi: replace devm_ioremap_nocache with devm_ioremap staging: replace devm_ioremap_nocache with devm_ioremap ipack: replace devm_ioremap_nocache with devm_ioremap media: replace devm_ioremap_nocache with devm_ioremap gpio: replace devm_ioremap_nocache with devm_ioremap mmc: replace devm_ioremap_nocache with devm_ioremap PCI: replace devm_ioremap_nocache with devm_ioremap platform/x86: replace devm_ioremap_nocache with devm_ioremap tty: replace devm_ioremap_nocache with devm_ioremap video: replace devm_ioremap_nocache with devm_ioremap rtc: replace devm_ioremap_nocache with devm_ioremap char: replace devm_ioremap_nocache with devm_ioremap mtd: nand: replace devm_ioremap_nocache with devm_ioremap dmaengine: replace devm_ioremap_nocache with devm_ioremap ata: replace devm_ioremap_nocache with devm_ioremap irqchip: replace devm_ioremap_nocache with devm_ioremap pinctrl: replace devm_ioremap_nocache with devm_ioremap drm: replace devm_ioremap_nocache with devm_ioremap regulator: replace devm_ioremap_nocache with devm_ioremap watchdog: replace devm_ioremap_nocache with devm_ioremap tools/testing/nvdimm: replace devm_ioremap_nocache with devm_ioremap MIPS: pci: replace devm_ioremap_nocache with devm_ioremap can: replace devm_ioremap_nocache with devm_ioremap wireless: replace devm_ioremap_nocache with devm_ioremap ethernet: replace devm_ioremap_nocache with devm_ioremap devres: kill devm_ioremap_nocache Documentation/driver-model/devres.txt | 1 - arch/mips/pci/pci-ar2315.c | 3 +-- drivers/ata/pata_arasan_cf.c | 3 +-- drivers/ata/pata_octeon_cf.c | 9 ++++---- drivers/ata/pata_rb532_cf.c | 2 +- drivers/char/hw_random/bcm63xx-rng.c | 3 +-- drivers/char/hw_random/octeon-rng.c | 10 ++++----- drivers/dma/altera-msgdma.c | 3 +-- drivers/dma/sprd-dma.c | 4 ++-- drivers/gpio/gpio-ath79.c | 3 +-- drivers/gpio/gpio-em.c | 6 ++--- drivers/gpio/gpio-htc-egpio.c | 4 ++-- drivers/gpio/gpio-xgene.c | 3 +-- drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_drv.c | 2 +- drivers/gpu/drm/msm/msm_drv.c | 2 +- drivers/gpu/drm/sti/sti_dvo.c | 3 +-- drivers/gpu/drm/sti/sti_hda.c | 4 ++-- drivers/gpu/drm/sti/sti_hdmi.c | 2 +- drivers/gpu/drm/sti/sti_tvout.c | 2 +- drivers/gpu/drm/sti/sti_vtg.c | 2 +- drivers/ipack/devices/ipoctal.c | 13 +++++------ drivers/irqchip/irq-renesas-intc-irqpin.c | 4 ++-- drivers/media/platform/tegra-cec/tegra_cec.c | 4 ++-- drivers/mmc/host/sdhci-acpi.c | 3 +-- drivers/mtd/nand/fsl_upm.c | 4 ++-- drivers/net/can/sja1000/sja1000_platform.c | 4 ++-- drivers/net/ethernet/altera/altera_tse_main.c | 3 +-- drivers/net/ethernet/ethoc.c | 8 +++---- drivers/net/ethernet/lantiq_etop.c | 4 ++-- drivers/net/ethernet/ti/netcp_core.c | 2 +- drivers/net/wireless/ath/ath9k/ahb.c | 2 +- drivers/pci/dwc/pci-dra7xx.c | 2 +- drivers/pinctrl/bcm/pinctrl-ns2-mux.c | 2 +- drivers/pinctrl/bcm/pinctrl-nsp-mux.c | 4 ++-- drivers/pinctrl/freescale/pinctrl-imx1-core.c | 2 +- drivers/pinctrl/pinctrl-amd.c | 4 ++-- drivers/platform/x86/intel_pmc_core.c | 5 ++--- drivers/regulator/ti-abb-regulator.c | 6 ++--- drivers/rtc/rtc-sh.c | 4 ++-- drivers/spi/spi-jcore.c | 3 +-- drivers/staging/fsl-mc/bus/mc-io.c | 8 +++---- drivers/tty/mips_ejtag_fdc.c | 4 ++-- drivers/tty/serial/8250/8250_omap.c | 3 +-- drivers/tty/serial/lantiq.c | 3 +-- drivers/tty/serial/meson_uart.c | 3 +-- drivers/tty/serial/owl-uart.c | 2 +- drivers/tty/serial/pic32_uart.c | 4 ++-- drivers/video/fbdev/mbx/mbxfb.c | 9 ++++---- drivers/video/fbdev/mmp/hw/mmp_ctrl.c | 2 +- drivers/video/fbdev/pxa168fb.c | 4 ++-- drivers/watchdog/bcm63xx_wdt.c | 4 ++-- drivers/watchdog/rc32434_wdt.c | 4 ++-- include/linux/io.h | 2 -- lib/devres.c | 29 ------------------------- scripts/coccinelle/free/devm_free.cocci | 2 -- sound/soc/au1x/ac97c.c | 4 ++-- sound/soc/au1x/i2sc.c | 4 ++-- sound/soc/intel/atom/sst/sst_acpi.c | 20 ++++++++--------- sound/soc/intel/boards/mfld_machine.c | 4 ++-- sound/soc/sh/fsi.c | 4 ++-- tools/testing/nvdimm/Kbuild | 2 +- tools/testing/nvdimm/test/iomap.c | 2 +- 62 files changed, 109 insertions(+), 168 deletions(-) -- 1.8.3.1

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[alsa-devel] [-next PATCH 0/4] sysfs and DEVICE_ATTR_<foo>
by Joe Perches 10 Jan '18

10 Jan '18

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[alsa-devel] [PATCH v7 00/13] Add STM32 DFSDM support
by Arnaud Pouliquen 10 Jan '18

10 Jan '18

Hello, Here is a new version integrating last comments Main deltas V7 vs V6: - Replaces the custom license information text with the appropriate SPDX identifier. - Few fixes in sound/soc/stm/stm32_adfsdm.c and stm32-dfsdm-core.c. - Add missing #interrupt-cells in binding examples. - Integrate last Jonathan's comments. Main deltas V6 vs V5: - Fix warning reported by kbuild test in : include/linux/iio/consumer.h sound/soc/stm/stm32_adfsdm.c Main deltas V5 vs V4: - Integrate ASOC DAI as a subnode of the DFSDM. - Add in kernel consumer interface to allow to manipulate attribute. Regards, Arnaud Arnaud Pouliquen (12): docs: driver-api: add iio hw consumer section IIO: hw_consumer: add devm_iio_hw_consumer_alloc IIO: inkern: API for manipulating channel attributes IIO: Add DT bindings for sigma delta adc modulator IIO: ADC: add sigma delta modulator support IIO: add DT bindings for stm32 DFSDM filter IIO: ADC: add stm32 DFSDM core support IIO: ADC: add STM32 DFSDM sigma delta ADC support IIO: ADC: add stm32 DFSDM support for PDM microphone IIO: consumer: allow to set buffer sizes ASoC: add bindings for stm32 DFSDM filter ASoC: stm32: add DFSDM DAI support Lars-Peter Clausen (1): iio: Add hardware consumer buffer support .../ABI/testing/sysfs-bus-iio-dfsdm-adc-stm32 | 16 + .../bindings/iio/adc/sigma-delta-modulator.txt | 13 + .../bindings/iio/adc/st,stm32-dfsdm-adc.txt | 128 ++ .../devicetree/bindings/sound/st,stm32-adfsdm.txt | 63 + Documentation/driver-api/iio/hw-consumer.rst | 51 + Documentation/driver-api/iio/index.rst | 1 + drivers/iio/adc/Kconfig | 37 + drivers/iio/adc/Makefile | 3 + drivers/iio/adc/sd_adc_modulator.c | 68 ++ drivers/iio/adc/stm32-dfsdm-adc.c | 1220 ++++++++++++++++++++ drivers/iio/adc/stm32-dfsdm-core.c | 309 +++++ drivers/iio/adc/stm32-dfsdm.h | 310 +++++ drivers/iio/buffer/Kconfig | 10 + drivers/iio/buffer/Makefile | 1 + drivers/iio/buffer/industrialio-buffer-cb.c | 11 + drivers/iio/buffer/industrialio-hw-consumer.c | 247 ++++ drivers/iio/inkern.c | 18 +- include/linux/iio/adc/stm32-dfsdm-adc.h | 18 + include/linux/iio/consumer.h | 37 + include/linux/iio/hw-consumer.h | 21 + include/linux/iio/iio.h | 28 - include/linux/iio/types.h | 28 + sound/soc/stm/Kconfig | 11 + sound/soc/stm/Makefile | 3 + sound/soc/stm/stm32_adfsdm.c | 351 ++++++ 25 files changed, 2970 insertions(+), 33 deletions(-) create mode 100644 Documentation/ABI/testing/sysfs-bus-iio-dfsdm-adc-stm32 create mode 100644 Documentation/devicetree/bindings/iio/adc/sigma-delta-modulator.txt create mode 100644 Documentation/devicetree/bindings/iio/adc/st,stm32-dfsdm-adc.txt create mode 100644 Documentation/devicetree/bindings/sound/st,stm32-adfsdm.txt create mode 100644 Documentation/driver-api/iio/hw-consumer.rst create mode 100644 drivers/iio/adc/sd_adc_modulator.c create mode 100644 drivers/iio/adc/stm32-dfsdm-adc.c create mode 100644 drivers/iio/adc/stm32-dfsdm-core.c create mode 100644 drivers/iio/adc/stm32-dfsdm.h create mode 100644 drivers/iio/buffer/industrialio-hw-consumer.c create mode 100644 include/linux/iio/adc/stm32-dfsdm-adc.h create mode 100644 include/linux/iio/hw-consumer.h create mode 100644 sound/soc/stm/stm32_adfsdm.c -- 2.7.4

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[alsa-devel] [PATCH v5 00/13] Add STM32 DFSDM support
by Arnaud Pouliquen 10 Jan '18

10 Jan '18

Hello, Here is a new version integrating remarks from Rob and Jonathan. Main deltas vs V4: - Integrate ASOC DAI not as a subnode of the DFSDM. - Add in kernel consumer interface to allow to manipulate attribute. Context reminder: ----------------- DFSDM peripheral is a peripheral that allows to connect some sigma delta ADCs or PDM microphones via a SPI or Manchester bus. DFSDM integrates digital filters to offer up to 24 bits final resolution. In term of SW architecture. 2 use-cases have to be supported: 1) Sigma delta ADC conversion through IIO framework. Sigma delta ADC is handled by generic sigma delta modulator driver. DFSDM peripheral is binded to a SD modulator ADC using the IIO HW consumer interface. Please notice that IIO HW consumer interface has be proposed by Lars, but is part of this patchset with Lars's agreement. User interface is IIO one. Notice that this patch-set propose only a raw conversion, to simplify review. Buffer and trigger management will be added in next patch-sets. 2) PDM microphone record through ALSA framework. PDM microphone is handled by ASOC Generic DMIC codec driver. ADFSDM ASOC DAI driver is binded to IIO driver using the IIO consumer interface ADFSDM ASOC DAI driver is binded to a PDM microphone ASOC component using ASOC Of_graph. User interface is ALSA one. As IIO DMA management is not adapted to an audio realtime stream. A specific DMA management has been implemented in IIO driver for audio purposes. Regards, Arnaud Arnaud Pouliquen (12): docs: driver-api: add iio hw consumer section IIO: hw_consumer: add devm_iio_hw_consumer_alloc IIO: inkern: API for manipulating channel attributes IIO: Add DT bindings for sigma delta adc modulator IIO: ADC: add sigma delta modulator support IIO: add DT bindings for stm32 DFSDM filter IIO: ADC: add stm32 DFSDM core support IIO: ADC: add STM32 DFSDM sigma delta ADC support IIO: ADC: add stm32 DFSDM support for PDM microphone IIO: consumer: allow to set buffer sizes ASoC: add bindings for stm32 DFSDM filter ASoC: stm32: add DFSDM DAI support Lars-Peter Clausen (1): iio: Add hardware consumer buffer support .../ABI/testing/sysfs-bus-iio-dfsdm-adc-stm32 | 16 + .../bindings/iio/adc/sigma-delta-modulator.txt | 13 + .../bindings/iio/adc/st,stm32-dfsdm-adc.txt | 127 ++ .../devicetree/bindings/sound/st,stm32-adfsdm.txt | 62 + Documentation/driver-api/iio/hw-consumer.rst | 51 + Documentation/driver-api/iio/index.rst | 1 + drivers/iio/adc/Kconfig | 37 + drivers/iio/adc/Makefile | 3 + drivers/iio/adc/sd_adc_modulator.c | 81 ++ drivers/iio/adc/stm32-dfsdm-adc.c | 1232 ++++++++++++++++++++ drivers/iio/adc/stm32-dfsdm-core.c | 318 +++++ drivers/iio/adc/stm32-dfsdm.h | 319 +++++ drivers/iio/buffer/Kconfig | 10 + drivers/iio/buffer/Makefile | 1 + drivers/iio/buffer/industrialio-buffer-cb.c | 11 + drivers/iio/buffer/industrialio-hw-consumer.c | 248 ++++ drivers/iio/inkern.c | 18 +- include/linux/iio/adc/stm32-dfsdm-adc.h | 28 + include/linux/iio/consumer.h | 37 + include/linux/iio/hw-consumer.h | 22 + sound/soc/stm/Kconfig | 11 + sound/soc/stm/Makefile | 3 + sound/soc/stm/stm32_adfsdm.c | 386 ++++++ 23 files changed, 3030 insertions(+), 5 deletions(-) create mode 100644 Documentation/ABI/testing/sysfs-bus-iio-dfsdm-adc-stm32 create mode 100644 Documentation/devicetree/bindings/iio/adc/sigma-delta-modulator.txt create mode 100644 Documentation/devicetree/bindings/iio/adc/st,stm32-dfsdm-adc.txt create mode 100644 Documentation/devicetree/bindings/sound/st,stm32-adfsdm.txt create mode 100644 Documentation/driver-api/iio/hw-consumer.rst create mode 100644 drivers/iio/adc/sd_adc_modulator.c create mode 100644 drivers/iio/adc/stm32-dfsdm-adc.c create mode 100644 drivers/iio/adc/stm32-dfsdm-core.c create mode 100644 drivers/iio/adc/stm32-dfsdm.h create mode 100644 drivers/iio/buffer/industrialio-hw-consumer.c create mode 100644 include/linux/iio/adc/stm32-dfsdm-adc.h create mode 100644 include/linux/iio/hw-consumer.h create mode 100644 sound/soc/stm/stm32_adfsdm.c -- 2.7.4

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[alsa-devel] [PATCH v4 00/12] Add STM32 DFSDM support
by Arnaud Pouliquen 10 Jan '18

10 Jan '18

Hello, Here is a new version of the DFSDM proposed. Context reminder: ----------------- DFSDM peripheral is a peripheral that allows to connect some sigma delta ADCs or PDM microphones via a SPI or Manchester bus. DFSDM integrates digital filters to offer up to 24 bits final resolution. In term of SW architecture. 2 use-cases have to be supported: 1) Sigma delta ADC conversion through IIO framework. Sigma delta ADC is handled by generic sigma delta modulator driver. DFSDM peripheral is binded to a SD modulator ADC using the IIO HW consumer interface. Please notice that IIO HW consumer interface has be proposed by Lars, but is part of this patchset with Lars's agreement. User interface is IIO one. Notice that this patch-set propose only a raw conversion, to simplify review. Buffer and trigger management will be added in next patch-sets. 2) PDM microphone record through ALSA framework. PDM microphone is handled by ASOC Generic DMIC codec driver. ADFSDM ASOC DAI driver is binded to IIO driver using the IIO consumer interface ADFSDM ASOC DAI driver is binded to a PDM microphone ASOC component using ASOC Of_graph. User interface is ALSA one. As IIO DMA management is not adapted to an audio realtime stream. A specific DMA management has been implemented in IIO driver for audio purposes. History of the versions: ----------------------- V3: Implementation with DMA support in IIO instead of handling it in ASOC. - New patches to support ASoC DMA codec in DT - ASoC: Add Bindins for DMIC codec driver. - ASoC: codec: add DT support in dmic codec. - New patches to allow in-kernel set of IIO buffer size and watermark - IIO: consumer: allow to set buffer sizes. - IIO DFSDM drivers - Split audio and ADC support in 2 drivers. - Implement DMA cyclic mode. - Add SPI bus Trigger for buffer management. - IIO sigma delta adc drivers - Suppress "simple and rename driver. - ASoC driver - Suppress DMA engine. - Suppress copy ops. - Use IIO consmumer interface to enable/Disable DFSDM. V2: Patch-set associated to this RFC proposes an implementation of the DFSDM features shared between ASoC and IIO frameworks. Patch-set is only a Skeleton of the drivers, so a base to discuss and validate a design. It contains minimum code to allow probing (with DT) and to expose the ASoC and IIO ABI. Hope that is sufficent in a first step to allow to focus on APIs. In this patch-set there are two new APIs used: - IIO in-kern API: based on hw_customer API proposed by Lars - ASOC <-> IIO API inspired by API defined for hdmi-codec for ASoC/DRM interconnect. API is dedicated to DFSDM only. Notice also that this design is based on following assumption: - Audio stream ABI interface is ASoC, no access to data through IIO ABI for PDM. - ASoC DMA should be used for audio transfer as designed for real time stream. - Need some runtime parameters exchange between ASoC and IIO due to the correlation between the sample frequency, the DFSDM decimation factor and the associated scaling. - "ASoC: dmaengine_pcm: add copy support" patch: I added a patch in ASoC that allows to implement a copy function to process data after DMA transfer. Requested, as DFSDM samples captured contain channel ID on 8-LSB bits and need also a potential rescale to present DAT on 24-bits. - "IIO: ADC: add sigma delta modulator support" patch: Simple dummy driver created to support external Sigma delta modulator. It is binded to DFSDM driver through hw_customer API. Regards, Arnaud Arnaud Pouliquen (11): docs: driver-api: add iio hw consumer section IIO: hw_consumer: add devm_iio_hw_consumer_alloc IIO: Add DT bindings for sigma delta adc modulator IIO: ADC: add sigma delta modulator support IIO: add DT bindings for stm32 DFSDM filter IIO: ADC: add stm32 DFSDM core support IIO: ADC: add STM32 DFSDM sigma delta ADC support IIO: ADC: add stm32 DFSDM support for PDM microphone IIO: consumer: allow to set buffer sizes ASoC: add bindings for stm32 DFSDM filter ASoC: stm32: add DFSDM DAI support Lars-Peter Clausen (1): iio: Add hardware consumer buffer support .../ABI/testing/sysfs-bus-iio-dfsdm-adc-stm32 | 22 + .../bindings/iio/adc/sigma-delta-modulator.txt | 13 + .../bindings/iio/adc/st,stm32-dfsdm-adc.txt | 127 ++ .../devicetree/bindings/sound/st,stm32-adfsdm.txt | 63 + Documentation/driver-api/iio/hw-consumer.rst | 50 + Documentation/driver-api/iio/index.rst | 1 + drivers/iio/adc/Kconfig | 37 + drivers/iio/adc/Makefile | 3 + drivers/iio/adc/sd_adc_modulator.c | 82 ++ drivers/iio/adc/stm32-dfsdm-adc.c | 1250 ++++++++++++++++++++ drivers/iio/adc/stm32-dfsdm-core.c | 318 +++++ drivers/iio/adc/stm32-dfsdm.h | 319 +++++ drivers/iio/buffer/Kconfig | 10 + drivers/iio/buffer/Makefile | 1 + drivers/iio/buffer/industrialio-buffer-cb.c | 11 + drivers/iio/buffer/industrialio-hw-consumer.c | 248 ++++ include/linux/iio/adc/stm32-dfsdm-adc.h | 27 + include/linux/iio/consumer.h | 11 + include/linux/iio/hw-consumer.h | 22 + sound/soc/stm/Kconfig | 11 + sound/soc/stm/Makefile | 3 + sound/soc/stm/stm32_adfsdm.c | 388 ++++++ 22 files changed, 3017 insertions(+) create mode 100644 Documentation/ABI/testing/sysfs-bus-iio-dfsdm-adc-stm32 create mode 100644 Documentation/devicetree/bindings/iio/adc/sigma-delta-modulator.txt create mode 100644 Documentation/devicetree/bindings/iio/adc/st,stm32-dfsdm-adc.txt create mode 100644 Documentation/devicetree/bindings/sound/st,stm32-adfsdm.txt create mode 100644 Documentation/driver-api/iio/hw-consumer.rst create mode 100644 drivers/iio/adc/sd_adc_modulator.c create mode 100644 drivers/iio/adc/stm32-dfsdm-adc.c create mode 100644 drivers/iio/adc/stm32-dfsdm-core.c create mode 100644 drivers/iio/adc/stm32-dfsdm.h create mode 100644 drivers/iio/buffer/industrialio-hw-consumer.c create mode 100644 include/linux/iio/adc/stm32-dfsdm-adc.h create mode 100644 include/linux/iio/hw-consumer.h create mode 100644 sound/soc/stm/stm32_adfsdm.c -- 2.7.4

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[alsa-devel] [PATCH v8 00/13] Add STM32 DFSDM support
by Arnaud Pouliquen 10 Jan '18

10 Jan '18

Hello New version based on minor comments from Jonathan. Main deltas V8 vs V7: - Few typos fixes. - Function return optimizations in sound/soc/stm/stm32_adfsdm.c. Main deltas V7 vs V6: - Replaces the custom license information text with the appropriate SPDX identifier. - Few fixes in sound/soc/stm/stm32_adfsdm.c and stm32-dfsdm-core.c. - Add missing #interrupt-cells in binding examples. - Integrate last Jonathan's comments. Main deltas V6 vs V5: - Fix warning reported by kbuild test in : include/linux/iio/consumer.h sound/soc/stm/stm32_adfsdm.c Main deltas V5 vs V4: - Integrate ASOC DAI as a subnode of the DFSDM. - Add in kernel consumer interface to allow to manipulate attribute. Thanks, Arnaud Arnaud Pouliquen (12): docs: driver-api: add iio hw consumer section IIO: hw_consumer: add devm_iio_hw_consumer_alloc IIO: inkern: API for manipulating channel attributes IIO: Add DT bindings for sigma delta adc modulator IIO: ADC: add sigma delta modulator support IIO: add DT bindings for stm32 DFSDM filter IIO: ADC: add stm32 DFSDM core support IIO: ADC: add STM32 DFSDM sigma delta ADC support IIO: ADC: add stm32 DFSDM support for PDM microphone IIO: consumer: allow to set buffer sizes ASoC: add bindings for stm32 DFSDM filter ASoC: stm32: add DFSDM DAI support Lars-Peter Clausen (1): iio: Add hardware consumer buffer support .../ABI/testing/sysfs-bus-iio-dfsdm-adc-stm32 | 16 + .../bindings/iio/adc/sigma-delta-modulator.txt | 13 + .../bindings/iio/adc/st,stm32-dfsdm-adc.txt | 128 ++ .../devicetree/bindings/sound/st,stm32-adfsdm.txt | 63 + Documentation/driver-api/iio/hw-consumer.rst | 51 + Documentation/driver-api/iio/index.rst | 1 + drivers/iio/adc/Kconfig | 37 + drivers/iio/adc/Makefile | 3 + drivers/iio/adc/sd_adc_modulator.c | 68 ++ drivers/iio/adc/stm32-dfsdm-adc.c | 1220 ++++++++++++++++++++ drivers/iio/adc/stm32-dfsdm-core.c | 309 +++++ drivers/iio/adc/stm32-dfsdm.h | 310 +++++ drivers/iio/buffer/Kconfig | 10 + drivers/iio/buffer/Makefile | 1 + drivers/iio/buffer/industrialio-buffer-cb.c | 11 + drivers/iio/buffer/industrialio-hw-consumer.c | 247 ++++ drivers/iio/inkern.c | 17 +- include/linux/iio/adc/stm32-dfsdm-adc.h | 18 + include/linux/iio/consumer.h | 37 + include/linux/iio/hw-consumer.h | 21 + include/linux/iio/iio.h | 28 - include/linux/iio/types.h | 28 + sound/soc/stm/Kconfig | 11 + sound/soc/stm/Makefile | 3 + sound/soc/stm/stm32_adfsdm.c | 347 ++++++ 25 files changed, 2965 insertions(+), 33 deletions(-) create mode 100644 Documentation/ABI/testing/sysfs-bus-iio-dfsdm-adc-stm32 create mode 100644 Documentation/devicetree/bindings/iio/adc/sigma-delta-modulator.txt create mode 100644 Documentation/devicetree/bindings/iio/adc/st,stm32-dfsdm-adc.txt create mode 100644 Documentation/devicetree/bindings/sound/st,stm32-adfsdm.txt create mode 100644 Documentation/driver-api/iio/hw-consumer.rst create mode 100644 drivers/iio/adc/sd_adc_modulator.c create mode 100644 drivers/iio/adc/stm32-dfsdm-adc.c create mode 100644 drivers/iio/adc/stm32-dfsdm-core.c create mode 100644 drivers/iio/adc/stm32-dfsdm.h create mode 100644 drivers/iio/buffer/industrialio-hw-consumer.c create mode 100644 include/linux/iio/adc/stm32-dfsdm-adc.h create mode 100644 include/linux/iio/hw-consumer.h create mode 100644 sound/soc/stm/stm32_adfsdm.c -- 2.7.4

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[alsa-devel] [PATCH 15/27] ALSA: hda - Use timecounter_initialize interface
by Sagar Arun Kamble 09 Jan '18

09 Jan '18

With new interface timecounter_initialize we can initialize timecounter fields and underlying cyclecounter together. Update azx timecounter init with this new function. Signed-off-by: Sagar Arun Kamble <sagar.a.kamble(a)intel.com> Cc: Richard Cochran <richardcochran(a)gmail.com> Cc: Jaroslav Kysela <perex(a)perex.cz> Cc: Takashi Iwai <tiwai(a)suse.com> Cc: Thomas Gleixner <tglx(a)linutronix.de> Cc: Vinod Koul <vinod.koul(a)intel.com> Cc: alsa-devel(a)alsa-project.org Cc: linux-kernel(a)vger.kernel.org --- sound/hda/hdac_stream.c | 14 ++++++-------- 1 file changed, 6 insertions(+), 8 deletions(-) diff --git a/sound/hda/hdac_stream.c b/sound/hda/hdac_stream.c index 9426c1a..ad91dde 100644 --- a/sound/hda/hdac_stream.c +++ b/sound/hda/hdac_stream.c @@ -477,12 +477,8 @@ static void azx_timecounter_init(struct hdac_stream *azx_dev, bool force, u64 last) { struct timecounter *tc = &azx_dev->tc; - struct cyclecounter *cc = &azx_dev->tc.cc; u64 nsec; - cc->read = azx_cc_read; - cc->mask = CLOCKSOURCE_MASK(32); - /* * Converting from 24 MHz to ns means applying a 125/3 factor. * To avoid any saturation issues in intermediate operations, @@ -493,11 +489,13 @@ static void azx_timecounter_init(struct hdac_stream *azx_dev, * overflows occur after about 4 hours or less, not a option. */ - cc->mult = 125; /* saturation after 195 years */ - cc->shift = 0; - nsec = 0; /* audio time is elapsed time since trigger */ - timecounter_init(tc, nsec); + timecounter_initialize(tc, + azx_cc_read, + CLOCKSOURCE_MASK(32), + 125, /* saturation after 195 years */ + 0, + nsec); if (force) { /* * force timecounter to use predefined value, -- 1.9.1

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