/* * ALSA SoC driver for * Asahi Kasei AK5386 Single-ended 24-Bit 192kHz delta-sigma ADC * * (c) 2013 Daniel Mack * * 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. */ #include #include #include #include #include #include #include #include #include static const char * const supply_names[] = { "va", "vd" }; struct ak5386_priv { int reset_gpio; struct regulator_bulk_data supplies[ARRAY_SIZE(supply_names)]; }; static const struct snd_soc_dapm_widget ak5386_dapm_widgets[] = { SND_SOC_DAPM_INPUT("AINL"), SND_SOC_DAPM_INPUT("AINR"), }; static const struct snd_soc_dapm_route ak5386_dapm_routes[] = { { "Capture", NULL, "AINL" }, { "Capture", NULL, "AINR" }, }; static int ak5386_soc_probe(struct snd_soc_codec *codec) { struct ak5386_priv *priv = snd_soc_codec_get_drvdata(codec); return regulator_bulk_enable(ARRAY_SIZE(priv->supplies), priv->supplies); } static int ak5386_soc_remove(struct snd_soc_codec *codec) { struct ak5386_priv *priv = snd_soc_codec_get_drvdata(codec); regulator_bulk_disable(ARRAY_SIZE(priv->supplies), priv->supplies); return 0; } #ifdef CONFIG_PM static int ak5386_soc_suspend(struct snd_soc_codec *codec) { struct ak5386_priv *priv = snd_soc_codec_get_drvdata(codec); regulator_bulk_disable(ARRAY_SIZE(priv->supplies), priv->supplies); return 0; } static int ak5386_soc_resume(struct snd_soc_codec *codec) { struct ak5386_priv *priv = snd_soc_codec_get_drvdata(codec); return regulator_bulk_enable(ARRAY_SIZE(priv->supplies), priv->supplies); } #else #define ak5386_soc_suspend NULL #define ak5386_soc_resume NULL #endif /* CONFIG_PM */ static struct snd_soc_codec_driver soc_codec_ak5386 = { .probe = ak5386_soc_probe, .remove = ak5386_soc_remove, .suspend = ak5386_soc_suspend, .resume = ak5386_soc_resume, .component_driver = { .dapm_widgets = ak5386_dapm_widgets, .num_dapm_widgets = ARRAY_SIZE(ak5386_dapm_widgets), .dapm_routes = ak5386_dapm_routes, .num_dapm_routes = ARRAY_SIZE(ak5386_dapm_routes), }, }; static int ak5386_set_dai_fmt(struct snd_soc_dai *codec_dai, unsigned int format) { struct snd_soc_codec *codec = codec_dai->codec; format &= SND_SOC_DAIFMT_FORMAT_MASK; if (format != SND_SOC_DAIFMT_LEFT_J && format != SND_SOC_DAIFMT_I2S) { dev_err(codec->dev, "Invalid DAI format\n"); return -EINVAL; } return 0; } static int ak5386_hw_params(struct snd_pcm_substream *substream, struct snd_pcm_hw_params *params, struct snd_soc_dai *dai) { struct snd_soc_codec *codec = dai->codec; struct ak5386_priv *priv = snd_soc_codec_get_drvdata(codec); /* * From the datasheet: * * All external clocks (MCLK, SCLK and LRCK) must be present unless * PDN pin = “L”. If these clocks are not provided, the AK5386 may * draw excess current due to its use of internal dynamically * refreshed logic. If the external clocks are not present, place * the AK5386 in power-down mode (PDN pin = “L”). */ if (gpio_is_valid(priv->reset_gpio)) gpio_set_value(priv->reset_gpio, 1); return 0; } static int ak5386_hw_free(struct snd_pcm_substream *substream, struct snd_soc_dai *dai) { struct snd_soc_codec *codec = dai->codec; struct ak5386_priv *priv = snd_soc_codec_get_drvdata(codec); if (gpio_is_valid(priv->reset_gpio)) gpio_set_value(priv->reset_gpio, 0); return 0; } static const struct snd_soc_dai_ops ak5386_dai_ops = { .set_fmt = ak5386_set_dai_fmt, .hw_params = ak5386_hw_params, .hw_free = ak5386_hw_free, }; static struct snd_soc_dai_driver ak5386_dai = { .name = "ak5386-hifi", .capture = { .stream_name = "Capture", .channels_min = 1, .channels_max = 2, .rates = SNDRV_PCM_RATE_8000_192000, .formats = SNDRV_PCM_FMTBIT_S8 | SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S24_3LE, }, .ops = &ak5386_dai_ops, }; #ifdef CONFIG_OF static const struct of_device_id ak5386_dt_ids[] = { { .compatible = "asahi-kasei,ak5386", }, { } }; MODULE_DEVICE_TABLE(of, ak5386_dt_ids); #endif static int ak5386_probe(struct platform_device *pdev) { struct device *dev = &pdev->dev; struct ak5386_priv *priv; int ret, i; priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL); if (!priv) return -ENOMEM; priv->reset_gpio = -EINVAL; dev_set_drvdata(dev, priv); for (i = 0; i < ARRAY_SIZE(supply_names); i++) priv->supplies[i].supply = supply_names[i]; ret = devm_regulator_bulk_get(dev, ARRAY_SIZE(priv->supplies), priv->supplies); if (ret < 0) return ret; if (of_match_device(of_match_ptr(ak5386_dt_ids), dev)) priv->reset_gpio = of_get_named_gpio(dev->of_node, "reset-gpio", 0); if (gpio_is_valid(priv->reset_gpio)) if (devm_gpio_request_one(dev, priv->reset_gpio, GPIOF_OUT_INIT_LOW, "AK5386 Reset")) priv->reset_gpio = -EINVAL; return snd_soc_register_codec(dev, &soc_codec_ak5386, &ak5386_dai, 1); } static int ak5386_remove(struct platform_device *pdev) { snd_soc_unregister_codec(&pdev->dev); return 0; } static struct platform_driver ak5386_driver = { .probe = ak5386_probe, .remove = ak5386_remove, .driver = { .name = "ak5386", .of_match_table = of_match_ptr(ak5386_dt_ids), }, }; module_platform_driver(ak5386_driver); MODULE_DESCRIPTION("ASoC driver for AK5386 ADC"); MODULE_AUTHOR("Daniel Mack "); MODULE_LICENSE("GPL"); 6cc6f87852693227fb0b1f124f807'>sound/soc/blackfin/bf5xx-sport.c parentb272f732f888d4cf43c943a40c9aaa836f9b7431 (diff)parent1f3a8e49d8f28f498b8694464623ac20aebfe62a (diff)
Merge branch 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull timer type cleanups from Thomas Gleixner: "This series does a tree wide cleanup of types related to timers/timekeeping. - Get rid of cycles_t and use a plain u64. The type is not really helpful and caused more confusion than clarity - Get rid of the ktime union. The union has become useless as we use the scalar nanoseconds storage unconditionally now. The 32bit timespec alike storage got removed due to the Y2038 limitations some time ago. That leaves the odd union access around for no reason. Clean it up. Both changes have been done with coccinelle and a small amount of manual mopping up" * 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: ktime: Get rid of ktime_equal() ktime: Cleanup ktime_set() usage ktime: Get rid of the union clocksource: Use a plain u64 instead of cycle_t
Diffstat (limited to 'sound/soc/blackfin/bf5xx-sport.c')