December 2015 - Alsa-devel - mailman.alsa-project.org

[alsa-devel] [PATCH v2 1/2] ASoC: atmel-pdmic: add the Pulse Density Modulation Interface Controller
by Songjun Wu 18 Dec '15

18 Dec '15

Add driver for the Pulse Density Modulation Interface Controller. It comes with digitallly controlled gain, a High-Pass and a SINCC filter. Signed-off-by: Songjun Wu <songjun.wu(a)atmel.com> --- Changes in v2: - Remove the function 'atmel_pdmic_codec_get_remap', since the regmap is initialized in the core. - Replace 'if' with 'switch' in function 'atmel_pdmic_codec_dai_hw_params'. - Fix the coding style issue in function 'atmel_pdmic_dt_init', 'atmel_pdmic_interrupt','pdmic_put_mic_volsw', 'atmel_pdmic_codec_probe', 'pdmic_get_mic_volsw' and 'atmel_pdmic_codec_dai_hw_params'. sound/soc/atmel/Kconfig | 9 + sound/soc/atmel/Makefile | 2 + sound/soc/atmel/atmel-pdmic.c | 738 +++++++++++++++++++++++++++++++++++++++++ sound/soc/atmel/atmel-pdmic.h | 80 +++++ 4 files changed, 829 insertions(+) create mode 100644 sound/soc/atmel/atmel-pdmic.c create mode 100644 sound/soc/atmel/atmel-pdmic.h diff --git a/sound/soc/atmel/Kconfig b/sound/soc/atmel/Kconfig index 2d30464..06e099e 100644 --- a/sound/soc/atmel/Kconfig +++ b/sound/soc/atmel/Kconfig @@ -68,4 +68,13 @@ config SND_ATMEL_SOC_CLASSD help Say Y if you want to add support for Atmel ASoC driver for boards using CLASSD. + +config SND_ATMEL_SOC_PDMIC + tristate "Atmel ASoC driver for boards using PDMIC" + depends on OF && (ARCH_AT91 || COMPILE_TEST) + select SND_SOC_GENERIC_DMAENGINE_PCM + select REGMAP_MMIO + help + Say Y if you want to add support for Atmel ASoC driver for boards using + PDMIC. endif diff --git a/sound/soc/atmel/Makefile b/sound/soc/atmel/Makefile index f6f7db4..a2b127b 100644 --- a/sound/soc/atmel/Makefile +++ b/sound/soc/atmel/Makefile @@ -12,8 +12,10 @@ snd-soc-sam9g20-wm8731-objs := sam9g20_wm8731.o snd-atmel-soc-wm8904-objs := atmel_wm8904.o snd-soc-sam9x5-wm8731-objs := sam9x5_wm8731.o snd-atmel-soc-classd-objs := atmel-classd.o +snd-atmel-soc-pdmic-objs := atmel-pdmic.o obj-$(CONFIG_SND_AT91_SOC_SAM9G20_WM8731) += snd-soc-sam9g20-wm8731.o obj-$(CONFIG_SND_ATMEL_SOC_WM8904) += snd-atmel-soc-wm8904.o obj-$(CONFIG_SND_AT91_SOC_SAM9X5_WM8731) += snd-soc-sam9x5-wm8731.o obj-$(CONFIG_SND_ATMEL_SOC_CLASSD) += snd-atmel-soc-classd.o +obj-$(CONFIG_SND_ATMEL_SOC_PDMIC) += snd-atmel-soc-pdmic.o diff --git a/sound/soc/atmel/atmel-pdmic.c b/sound/soc/atmel/atmel-pdmic.c new file mode 100644 index 0000000..aee4787 --- /dev/null +++ b/sound/soc/atmel/atmel-pdmic.c @@ -0,0 +1,738 @@ +/* Atmel PDMIC driver + * + * Copyright (C) 2015 Atmel + * + * Author: Songjun Wu <songjun.wu(a)atmel.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 or later + * as published by the Free Software Foundation. + */ + +#include <linux/of.h> +#include <linux/clk.h> +#include <linux/module.h> +#include <linux/platform_device.h> +#include <linux/regmap.h> +#include <sound/core.h> +#include <sound/dmaengine_pcm.h> +#include <sound/pcm_params.h> +#include <sound/tlv.h> +#include "atmel-pdmic.h" + +struct atmel_pdmic_pdata { + u32 mic_min_freq; + u32 mic_max_freq; + s32 mic_offset; + const char *card_name; +}; + +struct atmel_pdmic { + dma_addr_t phy_base; + struct regmap *regmap; + struct clk *pclk; + struct clk *gclk; + int irq; + struct snd_pcm_substream *substream; + const struct atmel_pdmic_pdata *pdata; +}; + +static const struct of_device_id atmel_pdmic_of_match[] = { + { + .compatible = "atmel,sama5d2-pdmic", + }, { + /* sentinel */ + } +}; +MODULE_DEVICE_TABLE(of, atmel_pdmic_of_match); + +#define PDMIC_OFFSET_MAX_VAL S16_MAX +#define PDMIC_OFFSET_MIN_VAL S16_MIN + +static struct atmel_pdmic_pdata *atmel_pdmic_dt_init(struct device *dev) +{ + struct device_node *np = dev->of_node; + struct atmel_pdmic_pdata *pdata; + + if (!np) { + dev_err(dev, "device node not found\n"); + return ERR_PTR(-EINVAL); + } + + pdata = devm_kzalloc(dev, sizeof(*pdata), GFP_KERNEL); + if (!pdata) + return ERR_PTR(-ENOMEM); + + if (of_property_read_string(np, "atmel,model", &pdata->card_name)) + pdata->card_name = "PDMIC"; + + if (of_property_read_u32(np, "atmel,mic-min-freq", + &pdata->mic_min_freq)) { + dev_err(dev, "failed to get mic-min-freq\n"); + return ERR_PTR(-EINVAL); + } + + if (of_property_read_u32(np, "atmel,mic-max-freq", + &pdata->mic_max_freq)) { + dev_err(dev, "failed to get mic-max-freq\n"); + return ERR_PTR(-EINVAL); + } + + if (pdata->mic_max_freq < pdata->mic_min_freq) { + dev_err(dev, + "mic-max-freq should not less than mic-min-freq\n"); + return ERR_PTR(-EINVAL); + } + + if (of_property_read_s32(np, "atmel,mic-offset", &pdata->mic_offset)) + pdata->mic_offset = 0; + + if (pdata->mic_offset > PDMIC_OFFSET_MAX_VAL) { + dev_warn(dev, + "mic-offset value %d is larger than the max value %d, the max value is specified\n", + pdata->mic_offset, PDMIC_OFFSET_MAX_VAL); + pdata->mic_offset = PDMIC_OFFSET_MAX_VAL; + } else if (pdata->mic_offset < PDMIC_OFFSET_MIN_VAL) { + dev_warn(dev, + "mic-offset value %d is less than the min value %d, the min value is specified\n", + pdata->mic_offset, PDMIC_OFFSET_MIN_VAL); + pdata->mic_offset = PDMIC_OFFSET_MIN_VAL; + } + + return pdata; +} + +/* cpu dai component */ +static int atmel_pdmic_cpu_dai_startup(struct snd_pcm_substream *substream, + struct snd_soc_dai *cpu_dai) +{ + struct snd_soc_pcm_runtime *rtd = substream->private_data; + struct atmel_pdmic *dd = snd_soc_card_get_drvdata(rtd->card); + int ret; + + ret = clk_prepare_enable(dd->gclk); + if (ret) + return ret; + + ret = clk_prepare_enable(dd->pclk); + if (ret) + return ret; + + /* Clear all bits in the Control Register(PDMIC_CR) */ + regmap_write(dd->regmap, PDMIC_CR, 0); + + dd->substream = substream; + + /* Enable the overrun error interrupt */ + regmap_write(dd->regmap, PDMIC_IER, PDMIC_IER_OVRE); + + return 0; +} + +static void atmel_pdmic_cpu_dai_shutdown(struct snd_pcm_substream *substream, + struct snd_soc_dai *cpu_dai) +{ + struct snd_soc_pcm_runtime *rtd = substream->private_data; + struct atmel_pdmic *dd = snd_soc_card_get_drvdata(rtd->card); + + /* Disable the overrun error interrupt */ + regmap_write(dd->regmap, PDMIC_IDR, PDMIC_IDR_OVRE); + + clk_disable_unprepare(dd->gclk); + clk_disable_unprepare(dd->pclk); +} + +static int atmel_pdmic_cpu_dai_prepare(struct snd_pcm_substream *substream, + struct snd_soc_dai *cpu_dai) +{ + struct snd_soc_pcm_runtime *rtd = substream->private_data; + struct atmel_pdmic *dd = snd_soc_card_get_drvdata(rtd->card); + u32 val; + + /* Clean the PDMIC Converted Data Register */ + return regmap_read(dd->regmap, PDMIC_CDR, &val); +} + +static const struct snd_soc_dai_ops atmel_pdmic_cpu_dai_ops = { + .startup = atmel_pdmic_cpu_dai_startup, + .shutdown = atmel_pdmic_cpu_dai_shutdown, + .prepare = atmel_pdmic_cpu_dai_prepare, +}; + +#define ATMEL_PDMIC_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S32_LE) + +static struct snd_soc_dai_driver atmel_pdmic_cpu_dai = { + .capture = { + .channels_min = 1, + .channels_max = 1, + .rates = SNDRV_PCM_RATE_KNOT, + .formats = ATMEL_PDMIC_FORMATS,}, + .ops = &atmel_pdmic_cpu_dai_ops, +}; + +static const struct snd_soc_component_driver atmel_pdmic_cpu_dai_component = { + .name = "atmel-pdmic", +}; + +/* platform */ +#define ATMEL_PDMIC_MAX_BUF_SIZE (64 * 1024) +#define ATMEL_PDMIC_PREALLOC_BUF_SIZE ATMEL_PDMIC_MAX_BUF_SIZE + +static const struct snd_pcm_hardware atmel_pdmic_hw = { + .info = SNDRV_PCM_INFO_MMAP + | SNDRV_PCM_INFO_MMAP_VALID + | SNDRV_PCM_INFO_INTERLEAVED + | SNDRV_PCM_INFO_RESUME + | SNDRV_PCM_INFO_PAUSE, + .formats = ATMEL_PDMIC_FORMATS, + .buffer_bytes_max = ATMEL_PDMIC_MAX_BUF_SIZE, + .period_bytes_min = 256, + .period_bytes_max = 32 * 1024, + .periods_min = 2, + .periods_max = 256, +}; + +static int +atmel_pdmic_platform_configure_dma(struct snd_pcm_substream *substream, + struct snd_pcm_hw_params *params, + struct dma_slave_config *slave_config) +{ + struct snd_soc_pcm_runtime *rtd = substream->private_data; + struct atmel_pdmic *dd = snd_soc_card_get_drvdata(rtd->card); + int ret; + + ret = snd_hwparams_to_dma_slave_config(substream, params, + slave_config); + if (ret) { + dev_err(rtd->platform->dev, + "hw params to dma slave configure failed\n"); + return ret; + } + + slave_config->src_addr = dd->phy_base + PDMIC_CDR; + slave_config->src_maxburst = 1; + slave_config->dst_maxburst = 1; + + return 0; +} + +static const struct snd_dmaengine_pcm_config +atmel_pdmic_dmaengine_pcm_config = { + .prepare_slave_config = atmel_pdmic_platform_configure_dma, + .pcm_hardware = &atmel_pdmic_hw, + .prealloc_buffer_size = ATMEL_PDMIC_PREALLOC_BUF_SIZE, +}; + +/* codec */ +/* Mic Gain = dgain * 2^(-scale) */ +struct mic_gain { + unsigned int dgain; + unsigned int scale; +}; + +/* range from -90 dB to 90 dB */ +static const struct mic_gain mic_gain_table[] = { +{ 1, 15}, { 1, 14}, /* -90, -84 dB */ +{ 3, 15}, { 1, 13}, { 3, 14}, { 1, 12}, /* -81, -78, -75, -72 dB */ +{ 5, 14}, { 13, 15}, /* -70, -68 dB */ +{ 9, 14}, { 21, 15}, { 23, 15}, { 13, 14}, /* -65 ~ -62 dB */ +{ 29, 15}, { 33, 15}, { 37, 15}, { 41, 15}, /* -61 ~ -58 dB */ +{ 23, 14}, { 13, 13}, { 58, 15}, { 65, 15}, /* -57 ~ -54 dB */ +{ 73, 15}, { 41, 14}, { 23, 13}, { 13, 12}, /* -53 ~ -50 dB */ +{ 29, 13}, { 65, 14}, { 73, 14}, { 41, 13}, /* -49 ~ -46 dB */ +{ 23, 12}, { 207, 15}, { 29, 12}, { 65, 13}, /* -45 ~ -42 dB */ +{ 73, 13}, { 41, 12}, { 23, 11}, { 413, 15}, /* -41 ~ -38 dB */ +{ 463, 15}, { 519, 15}, { 583, 15}, { 327, 14}, /* -37 ~ -34 dB */ +{ 367, 14}, { 823, 15}, { 231, 13}, { 1036, 15}, /* -33 ~ -30 dB */ +{ 1163, 15}, { 1305, 15}, { 183, 12}, { 1642, 15}, /* -29 ~ -26 dB */ +{ 1843, 15}, { 2068, 15}, { 145, 11}, { 2603, 15}, /* -25 ~ -22 dB */ +{ 365, 12}, { 3277, 15}, { 3677, 15}, { 4125, 15}, /* -21 ~ -18 dB */ +{ 4629, 15}, { 5193, 15}, { 5827, 15}, { 3269, 14}, /* -17 ~ -14 dB */ +{ 917, 12}, { 8231, 15}, { 9235, 15}, { 5181, 14}, /* -13 ~ -10 dB */ +{11627, 15}, {13045, 15}, {14637, 15}, {16423, 15}, /* -9 ~ -6 dB */ +{18427, 15}, {20675, 15}, { 5799, 13}, {26029, 15}, /* -5 ~ -2 dB */ +{ 7301, 13}, { 1, 0}, {18383, 14}, {10313, 13}, /* -1 ~ 2 dB */ +{23143, 14}, {25967, 14}, {29135, 14}, {16345, 13}, /* 3 ~ 6 dB */ +{ 4585, 11}, {20577, 13}, { 1443, 9}, {25905, 13}, /* 7 ~ 10 dB */ +{14533, 12}, { 8153, 11}, { 2287, 9}, {20529, 12}, /* 11 ~ 14 dB */ +{11517, 11}, { 6461, 10}, {28997, 12}, { 4067, 9}, /* 15 ~ 18 dB */ +{18253, 11}, { 10, 0}, {22979, 11}, {25783, 11}, /* 19 ~ 22 dB */ +{28929, 11}, {32459, 11}, { 9105, 9}, {20431, 10}, /* 23 ~ 26 dB */ +{22925, 10}, {12861, 9}, { 7215, 8}, {16191, 9}, /* 27 ~ 30 dB */ +{ 9083, 8}, {20383, 9}, {11435, 8}, { 6145, 7}, /* 31 ~ 34 dB */ +{ 3599, 6}, {32305, 9}, {18123, 8}, {20335, 8}, /* 35 ~ 38 dB */ +{ 713, 3}, { 100, 0}, { 7181, 6}, { 8057, 6}, /* 39 ~ 42 dB */ +{ 565, 2}, {20287, 7}, {11381, 6}, {25539, 7}, /* 43 ~ 46 dB */ +{ 1791, 3}, { 4019, 4}, { 9019, 5}, {20239, 6}, /* 47 ~ 50 dB */ +{ 5677, 4}, {25479, 6}, { 7147, 4}, { 8019, 4}, /* 51 ~ 54 dB */ +{17995, 5}, {20191, 5}, {11327, 4}, {12709, 4}, /* 55 ~ 58 dB */ +{ 3565, 2}, { 1000, 0}, { 1122, 0}, { 1259, 0}, /* 59 ~ 62 dB */ +{ 2825, 1}, {12679, 3}, { 7113, 2}, { 7981, 2}, /* 63 ~ 66 dB */ +{ 8955, 2}, {20095, 3}, {22547, 3}, {12649, 2}, /* 67 ~ 70 dB */ +{28385, 3}, { 3981, 0}, {17867, 2}, {20047, 2}, /* 71 ~ 74 dB */ +{11247, 1}, {12619, 1}, {14159, 1}, {31773, 2}, /* 75 ~ 78 dB */ +{17825, 1}, {10000, 0}, {11220, 0}, {12589, 0}, /* 79 ~ 82 dB */ +{28251, 1}, {15849, 0}, {17783, 0}, {19953, 0}, /* 83 ~ 86 dB */ +{22387, 0}, {25119, 0}, {28184, 0}, {31623, 0}, /* 87 ~ 90 dB */ +}; + +static const DECLARE_TLV_DB_RANGE(mic_gain_tlv, + 0, 1, TLV_DB_SCALE_ITEM(-9000, 600, 0), + 2, 5, TLV_DB_SCALE_ITEM(-8100, 300, 0), + 6, 7, TLV_DB_SCALE_ITEM(-7000, 200, 0), + 8, ARRAY_SIZE(mic_gain_table)-1, TLV_DB_SCALE_ITEM(-6500, 100, 0), +); + +int pdmic_get_mic_volsw(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol); + unsigned int dgain_val, scale_val; + int i; + + dgain_val = (snd_soc_read(codec, PDMIC_DSPR1) & PDMIC_DSPR1_DGAIN_MASK) + >> PDMIC_DSPR1_DGAIN_SHIFT; + + scale_val = (snd_soc_read(codec, PDMIC_DSPR0) & PDMIC_DSPR0_SCALE_MASK) + >> PDMIC_DSPR0_SCALE_SHIFT; + + for (i = 0; i < ARRAY_SIZE(mic_gain_table); i++) { + if ((mic_gain_table[i].dgain == dgain_val) && + (mic_gain_table[i].scale == scale_val)) + ucontrol->value.integer.value[0] = i; + } + + return 0; +} + +static int pdmic_put_mic_volsw(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct soc_mixer_control *mc = + (struct soc_mixer_control *)kcontrol->private_value; + struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol); + int max = mc->max; + unsigned int val; + int ret; + + val = ucontrol->value.integer.value[0]; + + if (val > max) + return -EINVAL; + + ret = snd_soc_update_bits(codec, PDMIC_DSPR1, PDMIC_DSPR1_DGAIN_MASK, + mic_gain_table[val].dgain << PDMIC_DSPR1_DGAIN_SHIFT); + if (ret < 0) + return ret; + + ret = snd_soc_update_bits(codec, PDMIC_DSPR0, PDMIC_DSPR0_SCALE_MASK, + mic_gain_table[val].scale << PDMIC_DSPR0_SCALE_SHIFT); + if (ret < 0) + return ret; + + return 0; +} + +static const struct snd_kcontrol_new atmel_pdmic_snd_controls[] = { +SOC_SINGLE_EXT_TLV("Mic Capture Volume", PDMIC_DSPR1, PDMIC_DSPR1_DGAIN_SHIFT, + ARRAY_SIZE(mic_gain_table)-1, 0, + pdmic_get_mic_volsw, pdmic_put_mic_volsw, mic_gain_tlv), + +SOC_SINGLE("High Pass Filter Switch", PDMIC_DSPR0, + PDMIC_DSPR0_HPFBYP_SHIFT, 1, 1), + +SOC_SINGLE("SINCC Filter Switch", PDMIC_DSPR0, PDMIC_DSPR0_SINBYP_SHIFT, 1, 1), +}; + +static int atmel_pdmic_codec_probe(struct snd_soc_codec *codec) +{ + struct snd_soc_card *card = snd_soc_codec_get_drvdata(codec); + struct atmel_pdmic *dd = snd_soc_card_get_drvdata(card); + + snd_soc_update_bits(codec, PDMIC_DSPR1, PDMIC_DSPR1_OFFSET_MASK, + (u32)(dd->pdata->mic_offset << PDMIC_DSPR1_OFFSET_SHIFT)); + + return 0; +} + +static struct snd_soc_codec_driver soc_codec_dev_pdmic = { + .probe = atmel_pdmic_codec_probe, + .controls = atmel_pdmic_snd_controls, + .num_controls = ARRAY_SIZE(atmel_pdmic_snd_controls), +}; + +/* codec dai component */ +#define PDMIC_MR_PRESCAL_MAX_VAL 127 + +static int +atmel_pdmic_codec_dai_hw_params(struct snd_pcm_substream *substream, + struct snd_pcm_hw_params *params, + struct snd_soc_dai *codec_dai) +{ + struct snd_soc_pcm_runtime *rtd = substream->private_data; + struct atmel_pdmic *dd = snd_soc_card_get_drvdata(rtd->card); + struct snd_soc_codec *codec = codec_dai->codec; + unsigned int rate_min = substream->runtime->hw.rate_min; + unsigned int rate_max = substream->runtime->hw.rate_max; + int fs = params_rate(params); + int bits = params_width(params); + unsigned long pclk_rate, gclk_rate; + unsigned int f_pdmic; + u32 mr_val, dspr0_val, pclk_prescal, gclk_prescal; + + if (params_channels(params) != 1) { + dev_err(codec->dev, + "only supports one channel\n"); + return -EINVAL; + } + + if ((fs < rate_min) || (fs > rate_max)) { + dev_err(codec->dev, + "sample rate is %dHz, min rate is %dHz, max rate is %dHz\n", + fs, rate_min, rate_max); + + return -EINVAL; + } + + switch (bits) { + case 16: + dspr0_val = (PDMIC_DSPR0_SIZE_16_BITS + << PDMIC_DSPR0_SIZE_SHIFT); + break; + case 32: + dspr0_val = (PDMIC_DSPR0_SIZE_32_BITS + << PDMIC_DSPR0_SIZE_SHIFT); + break; + default: + return -EINVAL; + } + + if ((fs << 7) > (rate_max << 6)) { + f_pdmic = fs << 6; + dspr0_val |= PDMIC_DSPR0_OSR_64 << PDMIC_DSPR0_OSR_SHIFT; + } else { + f_pdmic = fs << 7; + dspr0_val |= PDMIC_DSPR0_OSR_128 << PDMIC_DSPR0_OSR_SHIFT; + } + + pclk_rate = clk_get_rate(dd->pclk); + gclk_rate = clk_get_rate(dd->gclk); + + /* PRESCAL = SELCK/(2*f_pdmic) - 1*/ + pclk_prescal = (u32)(pclk_rate/(f_pdmic << 1)) - 1; + gclk_prescal = (u32)(gclk_rate/(f_pdmic << 1)) - 1; + + if ((pclk_prescal > PDMIC_MR_PRESCAL_MAX_VAL) || + (gclk_rate/((gclk_prescal + 1) << 1) < + pclk_rate/((pclk_prescal + 1) << 1))) { + mr_val = gclk_prescal << PDMIC_MR_PRESCAL_SHIFT; + mr_val |= PDMIC_MR_CLKS_GCK << PDMIC_MR_CLKS_SHIFT; + } else { + mr_val = pclk_prescal << PDMIC_MR_PRESCAL_SHIFT; + mr_val |= PDMIC_MR_CLKS_PCK << PDMIC_MR_CLKS_SHIFT; + } + + snd_soc_update_bits(codec, PDMIC_MR, + PDMIC_MR_PRESCAL_MASK | PDMIC_MR_CLKS_MASK, mr_val); + + snd_soc_update_bits(codec, PDMIC_DSPR0, + PDMIC_DSPR0_OSR_MASK | PDMIC_DSPR0_SIZE_MASK, dspr0_val); + + return 0; +} + +static int atmel_pdmic_codec_dai_prepare(struct snd_pcm_substream *substream, + struct snd_soc_dai *codec_dai) +{ + struct snd_soc_codec *codec = codec_dai->codec; + + snd_soc_update_bits(codec, PDMIC_CR, PDMIC_CR_ENPDM_MASK, + PDMIC_CR_ENPDM_DIS << PDMIC_CR_ENPDM_SHIFT); + + return 0; +} + +static int atmel_pdmic_codec_dai_trigger(struct snd_pcm_substream *substream, + int cmd, struct snd_soc_dai *codec_dai) +{ + struct snd_soc_codec *codec = codec_dai->codec; + u32 val; + + switch (cmd) { + case SNDRV_PCM_TRIGGER_START: + case SNDRV_PCM_TRIGGER_RESUME: + case SNDRV_PCM_TRIGGER_PAUSE_RELEASE: + val = PDMIC_CR_ENPDM_EN << PDMIC_CR_ENPDM_SHIFT; + break; + case SNDRV_PCM_TRIGGER_STOP: + case SNDRV_PCM_TRIGGER_SUSPEND: + case SNDRV_PCM_TRIGGER_PAUSE_PUSH: + val = PDMIC_CR_ENPDM_DIS << PDMIC_CR_ENPDM_SHIFT; + break; + default: + return -EINVAL; + } + + snd_soc_update_bits(codec, PDMIC_CR, PDMIC_CR_ENPDM_MASK, val); + + return 0; +} + +static const struct snd_soc_dai_ops atmel_pdmic_codec_dai_ops = { + .hw_params = atmel_pdmic_codec_dai_hw_params, + .prepare = atmel_pdmic_codec_dai_prepare, + .trigger = atmel_pdmic_codec_dai_trigger, +}; + +#define ATMEL_PDMIC_CODEC_DAI_NAME "atmel-pdmic-hifi" + +static struct snd_soc_dai_driver atmel_pdmic_codec_dai = { + .name = ATMEL_PDMIC_CODEC_DAI_NAME, + .capture = { + .stream_name = "Capture", + .channels_min = 1, + .channels_max = 1, + .rates = SNDRV_PCM_RATE_KNOT, + .formats = ATMEL_PDMIC_FORMATS, + }, + .ops = &atmel_pdmic_codec_dai_ops, +}; + +/* ASoC sound card */ +static int atmel_pdmic_asoc_card_init(struct device *dev, + struct snd_soc_card *card) +{ + struct snd_soc_dai_link *dai_link; + struct atmel_pdmic *dd = snd_soc_card_get_drvdata(card); + + dai_link = devm_kzalloc(dev, sizeof(*dai_link), GFP_KERNEL); + if (!dai_link) + return -ENOMEM; + + dai_link->name = "PDMIC"; + dai_link->stream_name = "PDMIC PCM"; + dai_link->codec_dai_name = ATMEL_PDMIC_CODEC_DAI_NAME; + dai_link->cpu_dai_name = dev_name(dev); + dai_link->codec_name = dev_name(dev); + dai_link->platform_name = dev_name(dev); + + card->dai_link = dai_link; + card->num_links = 1; + card->name = dd->pdata->card_name; + card->dev = dev; + + return 0; +} + +static void atmel_pdmic_get_sample_rate(struct atmel_pdmic *dd, + unsigned int *rate_min, unsigned int *rate_max) +{ + u32 mic_min_freq = dd->pdata->mic_min_freq; + u32 mic_max_freq = dd->pdata->mic_max_freq; + u32 clk_max_rate = (u32)(clk_get_rate(dd->pclk) >> 1); + u32 clk_min_rate = (u32)(clk_get_rate(dd->gclk) >> 8); + + if (mic_max_freq > clk_max_rate) + mic_max_freq = clk_max_rate; + + if (mic_min_freq < clk_min_rate) + mic_min_freq = clk_min_rate; + + *rate_min = DIV_ROUND_CLOSEST(mic_min_freq, 128); + *rate_max = mic_max_freq >> 6; +} + +/* PDMIC interrupt handler */ +static irqreturn_t atmel_pdmic_interrupt(int irq, void *dev_id) +{ + struct atmel_pdmic *dd = (struct atmel_pdmic *)dev_id; + u32 pdmic_isr; + irqreturn_t ret = IRQ_NONE; + + regmap_read(dd->regmap, PDMIC_ISR, &pdmic_isr); + + if (pdmic_isr & PDMIC_ISR_OVRE) { + regmap_update_bits(dd->regmap, PDMIC_CR, PDMIC_CR_ENPDM_MASK, + PDMIC_CR_ENPDM_DIS << PDMIC_CR_ENPDM_SHIFT); + + snd_pcm_stop_xrun(dd->substream); + + ret = IRQ_HANDLED; + } + + return ret; +} + +/* regmap configuration */ +#define ATMEL_PDMIC_REG_MAX 0x124 +static const struct regmap_config atmel_pdmic_regmap_config = { + .reg_bits = 32, + .reg_stride = 4, + .val_bits = 32, + .max_register = ATMEL_PDMIC_REG_MAX, +}; + +static int atmel_pdmic_probe(struct platform_device *pdev) +{ + struct device *dev = &pdev->dev; + struct atmel_pdmic *dd; + struct resource *res; + void __iomem *io_base; + const struct atmel_pdmic_pdata *pdata; + struct snd_soc_card *card; + unsigned int rate_min, rate_max; + int ret; + + pdata = atmel_pdmic_dt_init(dev); + if (IS_ERR(pdata)) + return PTR_ERR(pdata); + + dd = devm_kzalloc(dev, sizeof(*dd), GFP_KERNEL); + if (!dd) + return -ENOMEM; + + dd->pdata = pdata; + + dd->irq = platform_get_irq(pdev, 0); + if (dd->irq < 0) { + ret = dd->irq; + dev_err(dev, "failed to could not get irq: %d\n", ret); + return ret; + } + + dd->pclk = devm_clk_get(dev, "pclk"); + if (IS_ERR(dd->pclk)) { + ret = PTR_ERR(dd->pclk); + dev_err(dev, "failed to get peripheral clock: %d\n", ret); + return ret; + } + + dd->gclk = devm_clk_get(dev, "gclk"); + if (IS_ERR(dd->gclk)) { + ret = PTR_ERR(dd->gclk); + dev_err(dev, "failed to get GCK: %d\n", ret); + return ret; + } + + /* The gclk clock frequency must always be tree times + * lower than the pclk clock frequency + */ + ret = clk_set_rate(dd->gclk, clk_get_rate(dd->pclk)/3); + if (ret) { + dev_err(dev, "failed to set GCK clock rate: %d\n", ret); + return ret; + } + + res = platform_get_resource(pdev, IORESOURCE_MEM, 0); + if (!res) { + dev_err(dev, "no memory resource\n"); + return -ENXIO; + } + + io_base = devm_ioremap_resource(dev, res); + if (IS_ERR(io_base)) { + ret = PTR_ERR(io_base); + dev_err(dev, "failed to remap register memory: %d\n", ret); + return ret; + } + + dd->phy_base = res->start; + + dd->regmap = devm_regmap_init_mmio(dev, io_base, + &atmel_pdmic_regmap_config); + if (IS_ERR(dd->regmap)) { + ret = PTR_ERR(dd->regmap); + dev_err(dev, "failed to init register map: %d\n", ret); + return ret; + } + + ret = devm_request_irq(dev, dd->irq, atmel_pdmic_interrupt, 0, + "PDMIC", (void *)dd); + if (ret < 0) { + dev_err(dev, "can't register ISR for IRQ %u (ret=%i)\n", + dd->irq, ret); + return ret; + } + + /* Get the minimal and maximal sample rate that micphone supports */ + atmel_pdmic_get_sample_rate(dd, &rate_min, &rate_max); + + /* register cpu dai */ + atmel_pdmic_cpu_dai.capture.rate_min = rate_min; + atmel_pdmic_cpu_dai.capture.rate_max = rate_max; + ret = devm_snd_soc_register_component(dev, + &atmel_pdmic_cpu_dai_component, + &atmel_pdmic_cpu_dai, 1); + if (ret) { + dev_err(dev, "could not register CPU DAI: %d\n", ret); + return ret; + } + + /* register platform */ + ret = devm_snd_dmaengine_pcm_register(dev, + &atmel_pdmic_dmaengine_pcm_config, + 0); + if (ret) { + dev_err(dev, "could not register platform: %d\n", ret); + return ret; + } + + /* register codec and codec dai */ + atmel_pdmic_codec_dai.capture.rate_min = rate_min; + atmel_pdmic_codec_dai.capture.rate_max = rate_max; + ret = snd_soc_register_codec(dev, &soc_codec_dev_pdmic, + &atmel_pdmic_codec_dai, 1); + if (ret) { + dev_err(dev, "could not register codec: %d\n", ret); + return ret; + } + + /* register sound card */ + card = devm_kzalloc(dev, sizeof(*card), GFP_KERNEL); + if (!card) { + ret = -ENOMEM; + goto unregister_codec; + } + + snd_soc_card_set_drvdata(card, dd); + platform_set_drvdata(pdev, card); + + ret = atmel_pdmic_asoc_card_init(dev, card); + if (ret) { + dev_err(dev, "failed to init sound card: %d\n", ret); + goto unregister_codec; + } + + ret = devm_snd_soc_register_card(dev, card); + if (ret) { + dev_err(dev, "failed to register sound card: %d\n", ret); + goto unregister_codec; + } + + return 0; + +unregister_codec: + snd_soc_unregister_codec(dev); + return ret; +} + +static int atmel_pdmic_remove(struct platform_device *pdev) +{ + snd_soc_unregister_codec(&pdev->dev); + return 0; +} + +static struct platform_driver atmel_pdmic_driver = { + .driver = { + .name = "atmel-pdmic", + .of_match_table = of_match_ptr(atmel_pdmic_of_match), + .pm = &snd_soc_pm_ops, + }, + .probe = atmel_pdmic_probe, + .remove = atmel_pdmic_remove, +}; +module_platform_driver(atmel_pdmic_driver); + +MODULE_DESCRIPTION("Atmel PDMIC driver under ALSA SoC architecture"); +MODULE_AUTHOR("Songjun Wu <songjun.wu(a)atmel.com>"); +MODULE_LICENSE("GPL v2"); diff --git a/sound/soc/atmel/atmel-pdmic.h b/sound/soc/atmel/atmel-pdmic.h new file mode 100644 index 0000000..4527ac7 --- /dev/null +++ b/sound/soc/atmel/atmel-pdmic.h @@ -0,0 +1,80 @@ +#ifndef __ATMEL_PDMIC_H_ +#define __ATMEL_PDMIC_H_ + +#include <linux/bitops.h> + +#define PDMIC_CR 0x00000000 + +#define PDMIC_CR_SWRST 0x1 +#define PDMIC_CR_SWRST_MASK BIT(0) +#define PDMIC_CR_SWRST_SHIFT (0) + +#define PDMIC_CR_ENPDM_DIS 0x0 +#define PDMIC_CR_ENPDM_EN 0x1 +#define PDMIC_CR_ENPDM_MASK BIT(4) +#define PDMIC_CR_ENPDM_SHIFT (4) + +#define PDMIC_MR 0x00000004 + +#define PDMIC_MR_CLKS_PCK 0x0 +#define PDMIC_MR_CLKS_GCK 0x1 +#define PDMIC_MR_CLKS_MASK BIT(4) +#define PDMIC_MR_CLKS_SHIFT (4) + +#define PDMIC_MR_PRESCAL_MASK GENMASK(14, 8) +#define PDMIC_MR_PRESCAL_SHIFT (8) + +#define PDMIC_CDR 0x00000014 + +#define PDMIC_IER 0x00000018 +#define PDMIC_IER_OVRE BIT(25) + +#define PDMIC_IDR 0x0000001c +#define PDMIC_IDR_OVRE BIT(25) + +#define PDMIC_IMR 0x00000020 + +#define PDMIC_ISR 0x00000024 +#define PDMIC_ISR_OVRE BIT(25) + +#define PDMIC_DSPR0 0x00000058 + +#define PDMIC_DSPR0_HPFBYP_DIS 0x1 +#define PDMIC_DSPR0_HPFBYP_EN 0x0 +#define PDMIC_DSPR0_HPFBYP_MASK BIT(1) +#define PDMIC_DSPR0_HPFBYP_SHIFT (1) + +#define PDMIC_DSPR0_SINBYP_DIS 0x1 +#define PDMIC_DSPR0_SINBYP_EN 0x0 +#define PDMIC_DSPR0_SINBYP_MASK BIT(2) +#define PDMIC_DSPR0_SINBYP_SHIFT (2) + +#define PDMIC_DSPR0_SIZE_16_BITS 0x0 +#define PDMIC_DSPR0_SIZE_32_BITS 0x1 +#define PDMIC_DSPR0_SIZE_MASK BIT(3) +#define PDMIC_DSPR0_SIZE_SHIFT (3) + +#define PDMIC_DSPR0_OSR_128 0x0 +#define PDMIC_DSPR0_OSR_64 0x1 +#define PDMIC_DSPR0_OSR_MASK GENMASK(6, 4) +#define PDMIC_DSPR0_OSR_SHIFT (4) + +#define PDMIC_DSPR0_SCALE_MASK GENMASK(11, 8) +#define PDMIC_DSPR0_SCALE_SHIFT (8) + +#define PDMIC_DSPR0_SHIFT_MASK GENMASK(15, 12) +#define PDMIC_DSPR0_SHIFT_SHIFT (12) + +#define PDMIC_DSPR1 0x0000005c + +#define PDMIC_DSPR1_DGAIN_MASK GENMASK(14, 0) +#define PDMIC_DSPR1_DGAIN_SHIFT (0) + +#define PDMIC_DSPR1_OFFSET_MASK GENMASK(31, 16) +#define PDMIC_DSPR1_OFFSET_SHIFT (16) + +#define PDMIC_WPMR 0x000000e4 + +#define PDMIC_WPSR 0x000000e8 + +#endif -- 1.7.9.5

2 1

[alsa-devel] Applied "ASoC: atmel-classd: DT binding for PDMIC driver" to the asoc tree
by Mark Brown 18 Dec '15

18 Dec '15

The patch ASoC: atmel-classd: DT binding for PDMIC driver has been applied to the asoc tree at git://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound.git All being well this means that it will be integrated into the linux-next tree (usually sometime in the next 24 hours) and sent to Linus during the next merge window (or sooner if it is a bug fix), however if problems are discovered then the patch may be dropped or reverted. You may get further e-mails resulting from automated or manual testing and review of the tree, please engage with people reporting problems and send followup patches addressing any issues that are reported if needed. If any updates are required or you are submitting further changes they should be sent as incremental updates against current git, existing patches will not be replaced. Please add any relevant lists and maintainers to the CCs when replying to this mail. Thanks, Mark >From 4bc5145cec89b3df719d87d0a6876aa00941d66c Mon Sep 17 00:00:00 2001 From: Songjun Wu <songjun.wu(a)atmel.com> Date: Thu, 17 Dec 2015 17:50:00 +0800 Subject: [PATCH] ASoC: atmel-classd: DT binding for PDMIC driver DT binding documentation for this new ASoC driver. Signed-off-by: Songjun Wu <songjun.wu(a)atmel.com> Signed-off-by: Mark Brown <broonie(a)kernel.org> --- .../devicetree/bindings/sound/atmel-pdmic.txt | 55 ++++++++++++++++++++++ 1 file changed, 55 insertions(+) create mode 100644 Documentation/devicetree/bindings/sound/atmel-pdmic.txt diff --git a/Documentation/devicetree/bindings/sound/atmel-pdmic.txt b/Documentation/devicetree/bindings/sound/atmel-pdmic.txt new file mode 100644 index 000000000000..e0875f17c229 --- /dev/null +++ b/Documentation/devicetree/bindings/sound/atmel-pdmic.txt @@ -0,0 +1,55 @@ +* Atmel PDMIC driver under ALSA SoC architecture + +Required properties: +- compatible + Should be "atmel,sama5d2-pdmic". +- reg + Should contain PDMIC registers location and length. +- interrupts + Should contain the IRQ line for the PDMIC. +- dmas + One DMA specifiers as described in atmel-dma.txt and dma.txt files. +- dma-names + Must be "rx". +- clock-names + Required elements: + - "pclk" peripheral clock + - "gclk" generated clock +- clocks + Must contain an entry for each required entry in clock-names. + Please refer to clock-bindings.txt. +- atmel,mic-min-freq + The minimal frequency that the micphone supports. +- atmel,mic-max-freq + The maximal frequency that the micphone supports. + +Optional properties: +- pinctrl-names, pinctrl-0 + Please refer to pinctrl-bindings.txt. +- atmel,model + The user-visible name of this sound card. + The default value is "PDMIC". +- atmel,mic-offset + The offset that should be added. + The range is from -32768 to 32767. + The default value is 0. + +Example: + pdmic@f8018000 { + compatible = "atmel,sama5d2-pdmic"; + reg = <0xf8018000 0x124>; + interrupts = <48 IRQ_TYPE_LEVEL_HIGH 7>; + dmas = <&dma0 + (AT91_XDMAC_DT_MEM_IF(0) | AT91_XDMAC_DT_PER_IF(1) + | AT91_XDMAC_DT_PERID(50))>; + dma-names = "rx"; + clocks = <&pdmic_clk>, <&pdmic_gclk>; + clock-names = "pclk", "gclk"; + + pinctrl-names = "default"; + pinctrl-0 = <&pinctrl_pdmic_default>; + atmel,model = "PDMIC @ sama5d2_xplained"; + atmel,mic-min-freq = <1000000>; + atmel,mic-max-freq = <3246000>; + atmel,mic-offset = <0x0>; + }; -- 2.6.2

1 0

[alsa-devel] [PATCH 2/2] ASoC: wm8974: add devicetree support
by Mans Rullgard 18 Dec '15

18 Dec '15

This adds devicetree support to the wm8974 codec driver. With a DT-based kernel, there is no board-specific setting to select the driver so allow it to be manually chosen. Signed-off-by: Mans Rullgard <mans(a)mansr.com> --- sound/soc/codecs/Kconfig | 3 ++- sound/soc/codecs/wm8974.c | 7 +++++++ 2 files changed, 9 insertions(+), 1 deletion(-) diff --git a/sound/soc/codecs/Kconfig b/sound/soc/codecs/Kconfig index cfdafc4..e36b14c 100644 --- a/sound/soc/codecs/Kconfig +++ b/sound/soc/codecs/Kconfig @@ -838,7 +838,8 @@ config SND_SOC_WM8971 tristate config SND_SOC_WM8974 - tristate + tristate "Wolfson Microelectronics WM8974 codec" + depends on I2C config SND_SOC_WM8978 tristate "Wolfson Microelectronics WM8978 codec" diff --git a/sound/soc/codecs/wm8974.c b/sound/soc/codecs/wm8974.c index 4c29bd2..c284c7b 100644 --- a/sound/soc/codecs/wm8974.c +++ b/sound/soc/codecs/wm8974.c @@ -632,9 +632,16 @@ static const struct i2c_device_id wm8974_i2c_id[] = { }; MODULE_DEVICE_TABLE(i2c, wm8974_i2c_id); +static const struct of_device_id wm8974_of_match[] = { + { .compatible = "wlf,wm8974", }, + { } +}; +MODULE_DEVICE_TABLE(of, wm8974_of_match); + static struct i2c_driver wm8974_i2c_driver = { .driver = { .name = "wm8974", + .of_match_table = wm8974_of_match, }, .probe = wm8974_i2c_probe, .remove = wm8974_i2c_remove, -- 2.6.3

3 3

[alsa-devel] Applied "ASoC: wm8974: add binding for WM8974 codec" to the asoc tree
by Mark Brown 18 Dec '15

18 Dec '15

The patch ASoC: wm8974: add binding for WM8974 codec has been applied to the asoc tree at git://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound.git All being well this means that it will be integrated into the linux-next tree (usually sometime in the next 24 hours) and sent to Linus during the next merge window (or sooner if it is a bug fix), however if problems are discovered then the patch may be dropped or reverted. You may get further e-mails resulting from automated or manual testing and review of the tree, please engage with people reporting problems and send followup patches addressing any issues that are reported if needed. If any updates are required or you are submitting further changes they should be sent as incremental updates against current git, existing patches will not be replaced. Please add any relevant lists and maintainers to the CCs when replying to this mail. Thanks, Mark >From 47d358bbf22d504a41007e7fbf71b5b4b1b45b79 Mon Sep 17 00:00:00 2001 From: Mans Rullgard <mans(a)mansr.com> Date: Wed, 16 Dec 2015 13:55:13 +0000 Subject: [PATCH] ASoC: wm8974: add binding for WM8974 codec This adds a binding for the Wolfson WM8974 mono audio codec. Signed-off-by: Mans Rullgard <mans(a)mansr.com> Signed-off-by: Mark Brown <broonie(a)kernel.org> --- Documentation/devicetree/bindings/sound/wlf,wm8974.txt | 15 +++++++++++++++ 1 file changed, 15 insertions(+) create mode 100644 Documentation/devicetree/bindings/sound/wlf,wm8974.txt diff --git a/Documentation/devicetree/bindings/sound/wlf,wm8974.txt b/Documentation/devicetree/bindings/sound/wlf,wm8974.txt new file mode 100644 index 000000000000..01d3a7c83419 --- /dev/null +++ b/Documentation/devicetree/bindings/sound/wlf,wm8974.txt @@ -0,0 +1,15 @@ +WM8974 audio CODEC + +This device supports both I2C and SPI (configured with pin strapping +on the board). + +Required properties: + - compatible: "wlf,wm8974" + - reg: the I2C address or SPI chip select number of the device + +Examples: + +codec: wm8974@1a { + compatible = "wlf,wm8974"; + reg = <0x1a>; +}; -- 2.6.2

1 0

[alsa-devel] [PATCH] ALSA: hda - Set intel hda controller power at freeze() and thaw()
by Xiong Zhang 18 Dec '15

18 Dec '15

It takes three minutes to enter into hibernation on some OEM SKL machines and we see many codec spurious response after thaw() opertion. This is because HDA is still in D0 state after freeze() call and pci_pm_freeze/pci_pm_freeze_noirq() don't set D3 hot in pci_bus driver. It seems bios still access HDA when system enter into freeze state, HDA will receive codec response interrupt immediately after thaw() call. Because of this unexpected interrupt, HDA enter into a abnormal state and slow down the system enter into hibernation. In this patch, we put HDA into D3 hot state in azx_freeze_noirq() and put HDA into D0 state in azx_thaw_noirq(). Signed-off-by: Xiong Zhang <xiong.y.zhang(a)intel.com> --- sound/pci/hda/hda_intel.c | 20 ++++++++++++++++++++ 1 file changed, 20 insertions(+) diff --git a/sound/pci/hda/hda_intel.c b/sound/pci/hda/hda_intel.c index c38c68f..3ba7cbc 100644 --- a/sound/pci/hda/hda_intel.c +++ b/sound/pci/hda/hda_intel.c @@ -890,6 +890,16 @@ static int azx_suspend(struct device *dev) return 0; } +static int azx_freeze_noirq(struct device *dev) +{ + struct pci_dev *pci = to_pci_dev(dev); + + if (pci->vendor == PCI_VENDOR_ID_INTEL) + pci_set_power_state(pci, PCI_D3hot); + + return 0; +} + static int azx_resume(struct device *dev) { struct pci_dev *pci = to_pci_dev(dev); @@ -924,6 +934,14 @@ static int azx_resume(struct device *dev) trace_azx_resume(chip); return 0; } + +static int azx_thaw_noirq(struct device *dev) +{ + struct pci_dev *pci = to_pci_dev(dev); + + if (pci->vendor == PCI_VENDOR_ID_INTEL) + pci_set_power_state(pci, PCI_D0); +} #endif /* CONFIG_PM_SLEEP || SUPPORT_VGA_SWITCHEROO */ #ifdef CONFIG_PM @@ -1035,6 +1053,8 @@ static int azx_runtime_idle(struct device *dev) static const struct dev_pm_ops azx_pm = { SET_SYSTEM_SLEEP_PM_OPS(azx_suspend, azx_resume) + .freeze_noirq = azx_freeze_noirq, + .thaw_noirq = azx_thaw_noirq, SET_RUNTIME_PM_OPS(azx_runtime_suspend, azx_runtime_resume, azx_runtime_idle) }; -- 1.8.2.1

4 7

[alsa-devel] HT Omega eCLARO sound card
by Patricio Rossi 18 Dec '15

18 Dec '15

I got this card few days ago, after connected it into my PC got detected by lspci, but I cannot get a module to load, looks like the oxigen is the correct one but even when I load it manually nothing happens. I did some search on the web and I found people that was able to use it but I can't find how, I read the oxigen source code and the card is not there, is very similar to the ASUS Xonar. Is this the correct place to look for help? What is the status of this driver? where I can get more information? Thank you!

2 6

[alsa-devel] mixer controls not detected for class compliant USB audio interface (RME Babyface Pro)
by Be 17 Dec '15

17 Dec '15

Hello, I recently got a USB audio class compliant RME Babyface Pro interface. I previously posted about an issue getting all of the channels to work, but that ended up being an issue with PortAudio that is trivial to work around. Anyway, there is still the issue that the device's mixer controls are not detected by Linux. alsamixer sees no controls at all. The mixer controls must be accessible in the device's class compliant mode because the manufacturer's iPad mixer program can control its mixer and onboard DSP effects. I have attached lsusb -vvv output for the device. Below is dmesg output when the device is plugged in: [191013.268711] usb 2-1.2: new high-speed USB device number 11 using ehci-pci [191013.355392] usb 2-1.2: New USB device found, idVendor=2a39, idProduct=3fb0 [191013.355403] usb 2-1.2: New USB device strings: Mfr=1, Product=2, SerialNumber=3 [191013.355409] usb 2-1.2: Product: Babyface Pro (70785713) [191013.355413] usb 2-1.2: Manufacturer: RME [191013.355417] usb 2-1.2: SerialNumber: 9399A998B9CB3C8 [191013.360347] usb 2-1.2: unit 2 not found!

2 3

[alsa-devel] [PATCH] ASoC: rt5677: Reconfigure PLL1 after resume
by Ben Zhang 17 Dec '15

17 Dec '15

Sometimes PLL1 stops working if the codec loses power during suspend (when pow-ldo2 or reset gpio is used). MX-7Bh(RT5677_PLL1_CTRL2) is cleared and won't be restored by regcache since it's volatile. MX-7Bh has one status bit and M code for PLL1. rt5677_set_dai_pll doesn't reconfigure PLL1 after resume because it thinks the PLL params are not changed. This patch clears the cached PLL params at resume so that rt5677_set_dai_pll can reconfigure the PLL after resume. Signed-off-by: Ben Zhang <benzh(a)chromium.org> --- sound/soc/codecs/rt5677.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/sound/soc/codecs/rt5677.c b/sound/soc/codecs/rt5677.c index f73fd12..c404f51 100644 --- a/sound/soc/codecs/rt5677.c +++ b/sound/soc/codecs/rt5677.c @@ -4792,6 +4792,9 @@ static int rt5677_resume(struct snd_soc_codec *codec) struct rt5677_priv *rt5677 = snd_soc_codec_get_drvdata(codec); if (!rt5677->dsp_vad_en) { + rt5677->pll_src = 0; + rt5677->pll_in = 0; + rt5677->pll_out = 0; gpiod_set_value_cansleep(rt5677->pow_ldo2, 1); gpiod_set_value_cansleep(rt5677->reset_pin, 0); if (rt5677->pow_ldo2 || rt5677->reset_pin) -- 2.6.0.rc2.230.g3dd15c0

3 4

[alsa-devel] [sound:for-next 38/40] sound/pci/hda/hda_tegra.c:484:36: error: 'AZX_DCAPS_RIRB_DELAY' undeclared
by kbuild test robot 17 Dec '15

17 Dec '15

tree: https://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound.git for-next head: 64cfd2fd5325dbe24b990dbe003c22f5675d9742 commit: 119a42ac2b249abd6b5195e0606a0d70af2953eb [38/40] ALSA: hda - Move Nvidia-specific check into hda_intel.c config: arm-allyesconfig (attached as .config) reproduce: wget https://git.kernel.org/cgit/linux/kernel/git/wfg/lkp-tests.git/plain/sbin/m… -O ~/bin/make.cross chmod +x ~/bin/make.cross git checkout 119a42ac2b249abd6b5195e0606a0d70af2953eb # save the attached .config to linux build tree make.cross ARCH=arm All errors (new ones prefixed by >>): sound/pci/hda/hda_tegra.c: In function 'hda_tegra_probe': >> sound/pci/hda/hda_tegra.c:484:36: error: 'AZX_DCAPS_RIRB_DELAY' undeclared (first use in this function) const unsigned int driver_flags = AZX_DCAPS_RIRB_DELAY | ^ sound/pci/hda/hda_tegra.c:484:36: note: each undeclared identifier is reported only once for each function it appears in vim +/AZX_DCAPS_RIRB_DELAY +484 sound/pci/hda/hda_tegra.c 3c320f3f Dylan Reid 2014-05-19 478 {}, 3c320f3f Dylan Reid 2014-05-19 479 }; f73387cb Dylan Reid 2014-05-20 480 MODULE_DEVICE_TABLE(of, hda_tegra_match); 3c320f3f Dylan Reid 2014-05-19 481 3c320f3f Dylan Reid 2014-05-19 482 static int hda_tegra_probe(struct platform_device *pdev) 3c320f3f Dylan Reid 2014-05-19 483 { 88871dd2 Thierry Reding 2015-05-05 @484 const unsigned int driver_flags = AZX_DCAPS_RIRB_DELAY | 88871dd2 Thierry Reding 2015-05-05 485 AZX_DCAPS_CORBRP_SELF_CLEAR; 3c320f3f Dylan Reid 2014-05-19 486 struct snd_card *card; 3c320f3f Dylan Reid 2014-05-19 487 struct azx *chip; :::::: The code at line 484 was first introduced by commit :::::: 88871dd25f64b9bf16222e829ad766fac201866a ALSA: hda/tegra - Set CORBRP self-clear flag :::::: TO: Thierry Reding <treding(a)nvidia.com> :::::: CC: Takashi Iwai <tiwai(a)suse.de> --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation

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[alsa-devel] [RESEND PATCH v2 0/2] ASoC: atmel-pdmic: add driver for Atmel PDMIC
by Songjun Wu 17 Dec '15

17 Dec '15

The Pulse Density Modulation Inteface Controller driver includes two parts. 1) Driver code to implement the PDMIC function. 2) Device tree binding documentation, it describes how to add the PDMIC in device tree. Changes in v2: - Remove the function 'atmel_pdmic_codec_get_remap', since the regmap is initialized in the core. - Replace 'if' with 'switch' in function 'atmel_pdmic_codec_dai_hw_params'. - Fix the coding style issue in function 'atmel_pdmic_dt_init', 'atmel_pdmic_interrupt','pdmic_put_mic_volsw', 'atmel_pdmic_codec_probe', 'pdmic_get_mic_volsw' and 'atmel_pdmic_codec_dai_hw_params'. Songjun Wu (2): ASoC: atmel-pdmic: add the Pulse Density Modulation Interface Controller ASoC: atmel-classd: DT binding for PDMIC driver .../devicetree/bindings/sound/atmel-pdmic.txt | 55 ++ sound/soc/atmel/Kconfig | 9 + sound/soc/atmel/Makefile | 2 + sound/soc/atmel/atmel-pdmic.c | 738 ++++++++++++++++++++ sound/soc/atmel/atmel-pdmic.h | 80 +++ 5 files changed, 884 insertions(+) create mode 100644 Documentation/devicetree/bindings/sound/atmel-pdmic.txt create mode 100644 sound/soc/atmel/atmel-pdmic.c create mode 100644 sound/soc/atmel/atmel-pdmic.h -- 1.7.9.5

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