October 2016 - Alsa-devel - mailman.alsa-project.org

Re: [alsa-devel] [PATCH 5/7] ASoC: pxa2xx-ac97: Remove unused DAI ID defines
by Lars-Peter Clausen 24 Oct '16

24 Oct '16

On 10/24/2016 08:21 PM, Mark Brown wrote: > On Mon, Oct 24, 2016 at 08:17:28PM +0200, Lars-Peter Clausen wrote: >> On 10/24/2016 07:39 PM, Mark Brown wrote: > >>> This doesn't apply against current code, please check and resend. > >> It depends on the other earlier patches in this series. But I'll resend >> after the next merge window, this is not urgent. > > Ugh, which breaks because they got applied on topic branches :/ Yeah, it has been like this for a few years now, it can wait another 6 weeks.

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Re: [alsa-devel] [PATCH 5/7] ASoC: pxa2xx-ac97: Remove unused DAI ID defines
by Lars-Peter Clausen 24 Oct '16

24 Oct '16

On 10/24/2016 07:39 PM, Mark Brown wrote: > On Sat, Oct 15, 2016 at 07:32:55PM +0200, Lars-Peter Clausen wrote: >> The DAI ID defines are back from the time when DAIs were referenced by a >> numerical ID. These days a string is used for matching instead and the >> defines are unused. The last user of these defines was removed in commit >> f0fba2ad1b6b ("ASoC: multi-component - ASoC Multi-Component Support"). So >> remove the defines as well. > > This doesn't apply against current code, please check and resend. It depends on the other earlier patches in this series. But I'll resend after the next merge window, this is not urgent.

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[alsa-devel] [PATCH v3] ASoC: rt5514: Add the DMIC initial delay to wait it ready.
by Oder Chiou 24 Oct '16

24 Oct '16

Due to the DMIC that needs time to initial after the MCLK is provided, the field of delay time is implemented by the platform data. Signed-off-by: Oder Chiou <oder_chiou(a)realtek.com> --- Documentation/devicetree/bindings/sound/rt5514.txt | 3 +++ include/sound/rt5514.h | 20 ++++++++++++++++++++ sound/soc/codecs/rt5514.c | 17 +++++++++++++++++ sound/soc/codecs/rt5514.h | 2 ++ 4 files changed, 42 insertions(+) create mode 100644 include/sound/rt5514.h diff --git a/Documentation/devicetree/bindings/sound/rt5514.txt b/Documentation/devicetree/bindings/sound/rt5514.txt index 9cabfc1..a8074e7 100644 --- a/Documentation/devicetree/bindings/sound/rt5514.txt +++ b/Documentation/devicetree/bindings/sound/rt5514.txt @@ -13,6 +13,9 @@ Optional properties: - clocks: The phandle of the master clock to the CODEC - clock-names: Should be "mclk" +- realtek,dmic-init-delay + Set the DMIC initial delay to wait it ready. + Pins on the device (for linking into audio routes) for RT5514: * DMIC1L diff --git a/include/sound/rt5514.h b/include/sound/rt5514.h new file mode 100644 index 0000000..ef18494 --- /dev/null +++ b/include/sound/rt5514.h @@ -0,0 +1,20 @@ +/* + * linux/sound/rt5514.h -- Platform data for RT5514 + * + * Copyright 2016 Realtek Semiconductor Corp. + * Author: Oder Chiou <oder_chiou(a)realtek.com> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#ifndef __LINUX_SND_RT5514_H +#define __LINUX_SND_RT5514_H + +struct rt5514_platform_data { + unsigned int dmic_init_delay; +}; + +#endif + diff --git a/sound/soc/codecs/rt5514.c b/sound/soc/codecs/rt5514.c index f24b7cf..0d7bbdf 100644 --- a/sound/soc/codecs/rt5514.c +++ b/sound/soc/codecs/rt5514.c @@ -452,6 +452,9 @@ static int rt5514_set_dmic_clk(struct snd_soc_dapm_widget *w, RT5514_CLK_DMIC_OUT_SEL_MASK, idx << RT5514_CLK_DMIC_OUT_SEL_SFT); + if (rt5514->pdata.dmic_init_delay) + msleep(rt5514->pdata.dmic_init_delay); + return idx; } @@ -1073,9 +1076,18 @@ static const struct of_device_id rt5514_of_match[] = { MODULE_DEVICE_TABLE(of, rt5514_of_match); #endif +static int rt5514_parse_dt(struct rt5514_priv *rt5514, struct device *dev) +{ + device_property_read_u32(dev, "realtek,dmic-init-delay", + &rt5514->pdata.dmic_init_delay); + + return 0; +} + static int rt5514_i2c_probe(struct i2c_client *i2c, const struct i2c_device_id *id) { + struct rt5514_platform_data *pdata = dev_get_platdata(&i2c->dev); struct rt5514_priv *rt5514; int ret; unsigned int val; @@ -1087,6 +1099,11 @@ static int rt5514_i2c_probe(struct i2c_client *i2c, i2c_set_clientdata(i2c, rt5514); + if (pdata) + rt5514->pdata = *pdata; + else if (i2c->dev.of_node) + rt5514_parse_dt(rt5514, &i2c->dev); + rt5514->i2c_regmap = devm_regmap_init_i2c(i2c, &rt5514_i2c_regmap); if (IS_ERR(rt5514->i2c_regmap)) { ret = PTR_ERR(rt5514->i2c_regmap); diff --git a/sound/soc/codecs/rt5514.h b/sound/soc/codecs/rt5514.h index 229de0e..5d343fb 100644 --- a/sound/soc/codecs/rt5514.h +++ b/sound/soc/codecs/rt5514.h @@ -13,6 +13,7 @@ #define __RT5514_H__ #include <linux/clk.h> +#include <sound/rt5514.h> #define RT5514_DEVICE_ID 0x10ec5514 @@ -243,6 +244,7 @@ enum { }; struct rt5514_priv { + struct rt5514_platform_data pdata; struct snd_soc_codec *codec; struct regmap *i2c_regmap, *regmap; struct clk *mclk; -- 1.8.1.1.439.g50a6b54

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[alsa-devel] [PATCH] ASoc: wm8580: Add the wm8581 codec to the driver
by Matt Flax 24 Oct '16

24 Oct '16

This patch adds support for the wm8581 codec to the wm8580 driver. The wm8581 codec hardware adds a fourth DAC and otherwise is compatible with the wm8580 codec. of_device_id data is used to allow the driver to select the suitable DAC count specified in the device tree codec selection. The wm8580_driver_data struct is used to store the number of DACs. The snd_soc_dai_driver no longer lists the channels_max for the playback substream. This variable is set during the i2c probe from the of_device_id supplied wm8580_driver_data struct. With knowledge of the number of DACs in use, the DAC4 controls, widgets and routes are added as required for DAC4. The device tree documentation for the wm8580 is altered to list the wm8581 codec support, as is the Kconfig file. Signed-off-by: Matt Flax <flatmax(a)flatmax.org> --- Documentation/devicetree/bindings/sound/wm8580.txt | 4 +- sound/soc/codecs/Kconfig | 2 +- sound/soc/codecs/wm8580.c | 98 ++++++++++++++++++++-- 3 files changed, 92 insertions(+), 12 deletions(-) diff --git a/Documentation/devicetree/bindings/sound/wm8580.txt b/Documentation/devicetree/bindings/sound/wm8580.txt index 7d9821f..78fce9b 100644 --- a/Documentation/devicetree/bindings/sound/wm8580.txt +++ b/Documentation/devicetree/bindings/sound/wm8580.txt @@ -1,10 +1,10 @@ -WM8580 audio CODEC +WM8580 and WM8581 audio CODEC This device supports I2C only. Required properties: - - compatible : "wlf,wm8580" + - compatible : "wlf,wm8580", "wlf,wm8581" - reg : the I2C address of the device. diff --git a/sound/soc/codecs/Kconfig b/sound/soc/codecs/Kconfig index c67667b..199bec8 100644 --- a/sound/soc/codecs/Kconfig +++ b/sound/soc/codecs/Kconfig @@ -914,7 +914,7 @@ config SND_SOC_WM8523 depends on I2C config SND_SOC_WM8580 - tristate "Wolfson Microelectronics WM8523 CODEC" + tristate "Wolfson Microelectronics WM8580 and WM8581 CODECs" depends on I2C config SND_SOC_WM8711 diff --git a/sound/soc/codecs/wm8580.c b/sound/soc/codecs/wm8580.c index faa7287..d57dceb 100644 --- a/sound/soc/codecs/wm8580.c +++ b/sound/soc/codecs/wm8580.c @@ -1,5 +1,5 @@ /* - * wm8580.c -- WM8580 ALSA Soc Audio driver + * wm8580.c -- WM8580 and WM8581 ALSA Soc Audio driver * * Copyright 2008-12 Wolfson Microelectronics PLC. * @@ -12,6 +12,9 @@ * The WM8580 is a multichannel codec with S/PDIF support, featuring six * DAC channels and two ADC channels. * + * The WM8581 is a multichannel codec with S/PDIF support, featuring eight + * DAC channels and two ADC channels. + * * Currently only the primary audio interface is supported - S/PDIF and * the secondary audio interfaces are not. */ @@ -65,6 +68,8 @@ #define WM8580_DIGITAL_ATTENUATION_DACR2 0x17 #define WM8580_DIGITAL_ATTENUATION_DACL3 0x18 #define WM8580_DIGITAL_ATTENUATION_DACR3 0x19 +#define WM8580_DIGITAL_ATTENUATION_DACL4 0x1A +#define WM8580_DIGITAL_ATTENUATION_DACR4 0x1B #define WM8580_MASTER_DIGITAL_ATTENUATION 0x1C #define WM8580_ADC_CONTROL1 0x1D #define WM8580_SPDTXCHAN0 0x1E @@ -236,12 +241,17 @@ static const char *wm8580_supply_names[WM8580_NUM_SUPPLIES] = { "PVDD", }; +struct wm8580_driver_data { + int num_dacs; +}; + /* codec private data */ struct wm8580_priv { struct regmap *regmap; struct regulator_bulk_data supplies[WM8580_NUM_SUPPLIES]; struct pll_state a; struct pll_state b; + const struct wm8580_driver_data *drvdata; int sysclk[2]; }; @@ -306,6 +316,19 @@ SOC_DOUBLE("Capture Switch", WM8580_ADC_CONTROL1, 0, 1, 1, 1), SOC_SINGLE("Capture High-Pass Filter Switch", WM8580_ADC_CONTROL1, 4, 1, 0), }; +static const struct snd_kcontrol_new wm8581_snd_controls[] = { +SOC_DOUBLE_R_EXT_TLV("DAC4 Playback Volume", + WM8580_DIGITAL_ATTENUATION_DACL4, + WM8580_DIGITAL_ATTENUATION_DACR4, + 0, 0xff, 0, snd_soc_get_volsw, wm8580_out_vu, dac_tlv), + +SOC_SINGLE("DAC4 Deemphasis Switch", WM8580_DAC_CONTROL3, 3, 1, 0), + +SOC_DOUBLE("DAC4 Invert Switch", WM8580_DAC_CONTROL4, 8, 7, 1, 0), + +SOC_SINGLE("DAC4 Switch", WM8580_DAC_CONTROL5, 3, 1, 1), +}; + static const struct snd_soc_dapm_widget wm8580_dapm_widgets[] = { SND_SOC_DAPM_DAC("DAC1", "Playback", WM8580_PWRDN1, 2, 1), SND_SOC_DAPM_DAC("DAC2", "Playback", WM8580_PWRDN1, 3, 1), @@ -324,6 +347,13 @@ SND_SOC_DAPM_INPUT("AINL"), SND_SOC_DAPM_INPUT("AINR"), }; +static const struct snd_soc_dapm_widget wm8581_dapm_widgets[] = { +SND_SOC_DAPM_DAC("DAC4", "Playback", WM8580_PWRDN1, 5, 1), + +SND_SOC_DAPM_OUTPUT("VOUT4L"), +SND_SOC_DAPM_OUTPUT("VOUT4R"), +}; + static const struct snd_soc_dapm_route wm8580_dapm_routes[] = { { "VOUT1L", NULL, "DAC1" }, { "VOUT1R", NULL, "DAC1" }, @@ -338,6 +368,11 @@ static const struct snd_soc_dapm_route wm8580_dapm_routes[] = { { "ADC", NULL, "AINR" }, }; +static const struct snd_soc_dapm_route wm8581_dapm_routes[] = { + { "VOUT4L", NULL, "DAC4" }, + { "VOUT4R", NULL, "DAC4" }, +}; + /* PLL divisors */ struct _pll_div { u32 prescale:1; @@ -815,10 +850,21 @@ static int wm8580_set_bias_level(struct snd_soc_codec *codec, return 0; } +static int wm8580_playback_startup(struct snd_pcm_substream *substream, + struct snd_soc_dai *dai) +{ + struct snd_soc_codec *codec = dai->codec; + struct wm8580_priv *wm8580 = snd_soc_codec_get_drvdata(codec); + + return snd_pcm_hw_constraint_single(substream->runtime, + SNDRV_PCM_HW_PARAM_CHANNELS, wm8580->drvdata->num_dacs * 2); +} + #define WM8580_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE |\ SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S32_LE) static const struct snd_soc_dai_ops wm8580_dai_ops_playback = { + .startup = wm8580_playback_startup, .set_sysclk = wm8580_set_sysclk, .hw_params = wm8580_paif_hw_params, .set_fmt = wm8580_set_paif_dai_fmt, @@ -842,7 +888,6 @@ static struct snd_soc_dai_driver wm8580_dai[] = { .playback = { .stream_name = "Playback", .channels_min = 1, - .channels_max = 6, .rates = SNDRV_PCM_RATE_8000_192000, .formats = WM8580_FORMATS, }, @@ -865,8 +910,22 @@ static struct snd_soc_dai_driver wm8580_dai[] = { static int wm8580_probe(struct snd_soc_codec *codec) { struct wm8580_priv *wm8580 = snd_soc_codec_get_drvdata(codec); + struct snd_soc_dapm_context *dapm = snd_soc_codec_get_dapm(codec); int ret = 0; + switch (wm8580->drvdata->num_dacs) { + case 4: + snd_soc_add_codec_controls(codec, wm8581_snd_controls, + ARRAY_SIZE(wm8581_snd_controls)); + snd_soc_dapm_new_controls(dapm, wm8581_dapm_widgets, + ARRAY_SIZE(wm8581_dapm_widgets)); + snd_soc_dapm_add_routes(dapm, wm8581_dapm_routes, + ARRAY_SIZE(wm8581_dapm_routes)); + break; + default: + break; + } + ret = regulator_bulk_enable(ARRAY_SIZE(wm8580->supplies), wm8580->supplies); if (ret != 0) { @@ -914,12 +973,6 @@ static const struct snd_soc_codec_driver soc_codec_dev_wm8580 = { }, }; -static const struct of_device_id wm8580_of_match[] = { - { .compatible = "wlf,wm8580" }, - { }, -}; -MODULE_DEVICE_TABLE(of, wm8580_of_match); - static const struct regmap_config wm8580_regmap = { .reg_bits = 7, .val_bits = 9, @@ -932,10 +985,26 @@ static const struct regmap_config wm8580_regmap = { .volatile_reg = wm8580_volatile, }; +const struct wm8580_driver_data wm8580_data = { + .num_dacs = 3, +}; + +const struct wm8580_driver_data wm8581_data = { + .num_dacs = 4, +}; + +static const struct of_device_id wm8580_of_match[] = { + { .compatible = "wlf,wm8580", .data = &wm8580_data }, + { .compatible = "wlf,wm8581", .data = &wm8581_data }, + { }, +}; +MODULE_DEVICE_TABLE(of, wm8580_of_match); + #if IS_ENABLED(CONFIG_I2C) static int wm8580_i2c_probe(struct i2c_client *i2c, const struct i2c_device_id *id) { + const struct of_device_id *of_id; struct wm8580_priv *wm8580; int ret, i; @@ -960,6 +1029,15 @@ static int wm8580_i2c_probe(struct i2c_client *i2c, i2c_set_clientdata(i2c, wm8580); + of_id = of_match_device(wm8580_of_match, &i2c->dev); + if (of_id) + wm8580->drvdata = of_id->data; + + if (!wm8580->drvdata) { + dev_err(&i2c->dev, "failed to find driver data\n"); + return -EINVAL; + } + ret = snd_soc_register_codec(&i2c->dev, &soc_codec_dev_wm8580, wm8580_dai, ARRAY_SIZE(wm8580_dai)); @@ -973,7 +1051,8 @@ static int wm8580_i2c_remove(struct i2c_client *client) } static const struct i2c_device_id wm8580_i2c_id[] = { - { "wm8580", 0 }, + { "wm8580", (kernel_ulong_t)&wm8580_data }, + { "wm8581", (kernel_ulong_t)&wm8581_data }, { } }; MODULE_DEVICE_TABLE(i2c, wm8580_i2c_id); @@ -1014,4 +1093,5 @@ module_exit(wm8580_exit); MODULE_DESCRIPTION("ASoC WM8580 driver"); MODULE_AUTHOR("Mark Brown <broonie(a)opensource.wolfsonmicro.com>"); +MODULE_AUTHOR("Matt Flax <flatmax(a)flatmax.org>"); MODULE_LICENSE("GPL"); -- 2.7.4

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[alsa-devel] [PATCH v6 0/5] ASoC: Add support to Qualcomm msm8916-wcd multi codec
by Srinivas Kandagatla 24 Oct '16

24 Oct '16

This patchset aims at adding msm8916-wcd multi codec support. msm8916-wcd codec is found in Qualcomm msm8916 and apq8016 processors. This codec IP is split in to two parts(Digital & Analog), Analog part is integrated in to PMIC PM8916 and the digital part is integrated into Application processor. Register access to the analog part is done via SPMI interface to PMIC, and registers on the Application processor are memory mapped. Data transfer between Analog and Digital Die is done via a internal bus called PDM. Most of this driver is ported from downstream Andriod v3.10 kernel. Jack support and Headset button detection code is not added in to this series. First two patches add digital and analog codec support and the follow on patches add routes and multicodec support to the sound card and finally dts patch for board. This codec support: - 3 Microphones: Primary Mic(Handset mic), Headset Mic and Secondary Mic. - 2 Digital Microphones. - 2 Mic Bias Circuits. - Earpiece - Headset - Loud Speaker. - Jack Detect. - Headset Button detection circuit. Tested this code on v4.9-rc1 with for Headset (Mic and speakers), Secondary Mic and Loudspeaker on DB410C. DMIC should work too. Last DT patch is on top of v4.9-rc1 which get analog audio working. Thanks, srini Changes since v5: - Fixed DT example style and compatible string as suggested by Rob. - Added Rob's acks to 2 patches. Changes since v4: - Fixed various C-style related issues reported by Mark - Added shutdown call to clear things setup in startup, spotted by Mark. - Rearranged code to make it more readble suggested by Mark. - Converted dmic clk to a dapm supply spotted by Mark. - Added example in dt bindings to show support of multicodec. - Removed two patches from this list as they are already applied in sound tree. Changes since v3: - Split the codec to 2 seperate codecs digital and analog, suggested by Mark and Kenneth. - Addressed various suggestions from Mark and Kenneth. Srinivas Kandagatla (5): ASoC: codecs: Add msm8916-wcd analog codec ASoC: codecs: Add msm8916-wcd digital codec ASoC: apq8016-sbc: dt bindings: remove incorrect property ASoC: qcom: apq8016-sbc: Add support to multi codec. arm64: dts: apq8016-sbc: add analog audio support with multicodec .../devicetree/bindings/sound/qcom,apq8016-sbc.txt | 5 +- .../bindings/sound/qcom,msm8916-wcd-analog.txt | 85 ++ .../bindings/sound/qcom,msm8916-wcd-digital.txt | 20 + arch/arm64/boot/dts/qcom/apq8016-sbc.dtsi | 61 ++ arch/arm64/boot/dts/qcom/msm8916.dtsi | 9 + arch/arm64/boot/dts/qcom/pm8916.dtsi | 45 +- sound/soc/codecs/Kconfig | 7 + sound/soc/codecs/Makefile | 5 +- sound/soc/codecs/msm8916-wcd-analog.c | 890 ++++++++++++++++++++ sound/soc/codecs/msm8916-wcd-digital.c | 923 +++++++++++++++++++++ sound/soc/qcom/apq8016_sbc.c | 11 +- 11 files changed, 2048 insertions(+), 13 deletions(-) create mode 100644 Documentation/devicetree/bindings/sound/qcom,msm8916-wcd-analog.txt create mode 100644 Documentation/devicetree/bindings/sound/qcom,msm8916-wcd-digital.txt create mode 100644 sound/soc/codecs/msm8916-wcd-analog.c create mode 100644 sound/soc/codecs/msm8916-wcd-digital.c -- 2.9.2

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[alsa-devel] Choppy audio with non-blocking writes
by Fernando Rodriguez 24 Oct '16

24 Oct '16

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 Hello, I'm using non-blocking writes to play an audio stream. When snd_pcm_writei() return -EGAIN I put the thread to sleep for the time it would take to play the packet that I'm trying to write and the packet size it's capped at 1/4 the ALSA buffer so that should ensure that the buffer never gets more than half empty. And it works as I don't get underruns. But sometimes the audio gets choppy and it sounds like it's playing out of time. Like periodically for a fraction of a second it plays a bit of audio that should've been played about a second ago. Triggering an underrun or a call to snd_pcm_drain(), either by pausing the stream or overloading the CPU corrects the problem so I think the internal ALSA ring buffer pointers are getting out of sync somehow. Also it only happens with non-blocking writes. If I use blocking writes it works fine but there are other problems with that. So I think either I'm handling -EAGAIN incorrectly, or not configuring it properly? You can look at the code here: https://bitbucket.org/frodzdev/mediabox/src/84dced5b84eba4e6e639615dd3d30fc… Any help will be appreciated. - -- Fernando Rodriguez -----BEGIN PGP SIGNATURE----- Version: GnuPG v2 iQIcBAEBCAAGBQJYDjCvAAoJEPbOFX/5UlwcG/MP/2WAuJKy4WhU5h/yauDyuv1S h5H2Lj2orQcx0R55Qy3xewYz+HEgM+k0p2chJXUsB7dxp6zrnXCven1H0lZqhm0o dVFZ+E3r/rUBpfIOmlvT27uUTFyQcdz9h+WViAFvCbldEOEa7DALEXqLvNLeC1S7 C6dfuV/L7/Dq0W5sNtErZpzH7YY715zzZCIGncAd7LGteTaMND/p6F02CqwEm343 E4zNL6+Ac3N1eEmlRWI/Vo8QC1Yafo7BbPuR0kYornkqigNgK3yL/+FSwAcHZC4V Ge8Q0Ba1DCFMWC6BEfPwSyZ4hUeillQQbPMYhgu4QCKiKUrD8QOFSu16e2A1d+hU usn9WQwyisheDavqxvNN+6pr2Gi9r2BxzWbqLQKJ8L+bSLvuaDGEWmUDgVjjGm89 NKcL6yjucJamjjn8ZMfcx6T4e+ieyU9IOMNteXz54QKG9ltX2IqWgoBG6S+S4cjL SggGePoQHq2e7WwWjKqDQ5lOx0aZsb5SZqrgllR4/ROL4Dk+52DRjYChdOG4Prim kFRmcdHrvlBmunCXIaIu5+Ec0GuoBEjPfTKwlo1gylrZEYAfjU8iLpoTDkP3J4SK FPY5ibUD9IKF/cbdFUzx+oAZoBFlC3oAPLqt80VgsLVEI/1d9Z36+xPRE6PidihP Orn2dggcwqfbR1v+x+Ot =RfWT -----END PGP SIGNATURE-----

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[alsa-devel] [PATCH v2 0/3] topology: Support widgets' stream name and file inclusion for text conf file
by mengdong.lin＠linux.intel.com 24 Oct '16

24 Oct '16

From: Mengdong Lin <mengdong.lin(a)linux.intel.com> This series doesn't require or cause any ABI updates. It doesn't need the kernel patches that trying to udpate ABI from v4 or v5. Patch 1 fixes a missing topology feature for text conf file to configure stream name of a widget. Patch 2 allows alsaconf to search included files under global configuration directories. This will benefit topology and UCM. Patch 3 adds document about how to include files for topology configuration. There is no c code change but actually it depends on patch 2. History: v2: No longer use topology-specific code to support searching included files, but extend alsaconf to support this and user can just use alsaconf syntax <xxx> and <confdir:xxx>. Mengdong Lin (3): topology: Fix missing stream name of widgets in text conf file alsaconf: Search included files under global configuration directories topology: Add doc for including other files in the text conf file include/topology.h | 31 ++++++++++++ src/conf.c | 141 +++++++++++++++++++++++++++++++++++++++++++++++++++- src/topology/dapm.c | 10 ++++ 3 files changed, 180 insertions(+), 2 deletions(-) -- 2.5.0

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[alsa-devel] [PATCH v4 0/3] topology: Support widgets' stream name and file inclusion for text conf file
by mengdong.lin＠linux.intel.com 24 Oct '16

24 Oct '16

From: Mengdong Lin <mengdong.lin(a)linux.intel.com> This series doesn't require or cause any ABI updates. It doesn't need the kernel patches that trying to udpate ABI from v4 or v5. Patch 1 fixes a missing topology feature for text conf file to configure stream name of a widget. Patch 2 allows alsaconf to search included files under global configuration directories. This will benefit topology and UCM. Patch 3 adds document about how to include files for topology configuration. There is no c code change but actually it depends on patch 2. History: v2: No longer use topology-specific code to support searching included files, but extend alsaconf to support this and user can just use alsaconf syntax <xxx> and <confdir:xxx>. v3: Not use <confdir:xxx>, but define new syntax <searchdir:xxx> to define directories for searching included file. v4: Not use doxygen comments for static functins. Fix memory leak, Use snprintf to avoid overflow, use auto variable to cook file path, and list_for_each for non-deletion cases. Mengdong Lin (3): topology: Fix missing stream name of widgets in text conf file alsaconf: Search included files under user specified configuration directories topology: Add doc for including other files in the text conf file include/topology.h | 31 ++++++++++ src/conf.c | 159 +++++++++++++++++++++++++++++++++++++++++++++++++++- src/topology/dapm.c | 10 ++++ 3 files changed, 199 insertions(+), 1 deletion(-) -- 2.5.0

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[alsa-devel] Potential Audio miniconference at LPC/KS
by Mark Brown 24 Oct '16

24 Oct '16

Hi, As in previous years we're trying to organize an audio miniconference so we can get together and talk through issues, especially design decisons, face to face. This year we're trying a slightly different tack and trying to organize this as part of the workshops day at Kernel Summit and Linux Plumbers in Santa Fe the week 31st October to 4th November (I'm writing this offline so don't have the exact date for the workshop day, sorry). There is a wiki page with an initial list of proposed topics here: http://wiki.linuxplumbersconf.org/2016:workshops In order to get this workshop approved we're going to need both a clear set of things to discuss and visible interest from attendees so if people could both follow up here and add to the wiki with suggestions of topics that'd be especially appreciated. Thanks, Mark

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[alsa-devel] [RFC PATCH v3 0/3] support DP MST audio
by libin.yang＠linux.intel.com 24 Oct '16

24 Oct '16

From: Libin Yang <libin.yang(a)linux.intel.com> This patchset starts to support DP MST audio. This patchset is based on drm-intel-nightly on git://anongit.freedesktop.org/drm-intel Libin Yang (3): ALSA: hda - add DP mst verb support ALSA: hda - add DP mst audio support ALSA: Documentation about HDA DP MST pin init and connection Documentation/sound/alsa/HD-Audio-DP-MST-audio.txt | 17 ++ sound/pci/hda/hda_codec.c | 77 ++++++- sound/pci/hda/hda_codec.h | 3 + sound/pci/hda/patch_hdmi.c | 243 ++++++++++++++++----- 4 files changed, 285 insertions(+), 55 deletions(-) -- 1.9.1

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