diff options
| -rw-r--r-- | sound/soc/samsung/Kconfig | 8 | ||||
| -rw-r--r-- | sound/soc/samsung/Makefile | 2 | ||||
| -rw-r--r-- | sound/soc/samsung/odroid.c | 219 |
3 files changed, 229 insertions, 0 deletions
diff --git a/sound/soc/samsung/Kconfig b/sound/soc/samsung/Kconfig index f1f1d7959a1b..0520f5afd7cc 100644 --- a/sound/soc/samsung/Kconfig +++ b/sound/soc/samsung/Kconfig @@ -185,6 +185,14 @@ config SND_SOC_SNOW Say Y if you want to add audio support for various Snow boards based on Exynos5 series of SoCs. +config SND_SOC_ODROID + tristate "Audio support for Odroid XU3/XU4" + depends on SND_SOC_SAMSUNG && I2C + select SND_SOC_MAX98090 + select SND_SAMSUNG_I2S + help + Say Y here to enable audio support for the Odroid XU3/XU4. + config SND_SOC_ARNDALE_RT5631_ALC5631 tristate "Audio support for RT5631(ALC5631) on Arndale Board" depends on I2C diff --git a/sound/soc/samsung/Makefile b/sound/soc/samsung/Makefile index b5df5e2e3d94..b6c2ee358333 100644 --- a/sound/soc/samsung/Makefile +++ b/sound/soc/samsung/Makefile @@ -40,6 +40,7 @@ snd-soc-tobermory-objs := tobermory.o snd-soc-lowland-objs := lowland.o snd-soc-littlemill-objs := littlemill.o snd-soc-bells-objs := bells.o +snd-soc-odroid-objs := odroid.o snd-soc-arndale-rt5631-objs := arndale_rt5631.o snd-soc-tm2-wm5110-objs := tm2_wm5110.o @@ -62,5 +63,6 @@ obj-$(CONFIG_SND_SOC_TOBERMORY) += snd-soc-tobermory.o obj-$(CONFIG_SND_SOC_LOWLAND) += snd-soc-lowland.o obj-$(CONFIG_SND_SOC_LITTLEMILL) += snd-soc-littlemill.o obj-$(CONFIG_SND_SOC_BELLS) += snd-soc-bells.o +obj-$(CONFIG_SND_SOC_ODROID) += snd-soc-odroid.o obj-$(CONFIG_SND_SOC_ARNDALE_RT5631_ALC5631) += snd-soc-arndale-rt5631.o obj-$(CONFIG_SND_SOC_SAMSUNG_TM2_WM5110) += snd-soc-tm2-wm5110.o diff --git a/sound/soc/samsung/odroid.c b/sound/soc/samsung/odroid.c new file mode 100644 index 000000000000..0c0b00e40646 --- /dev/null +++ b/sound/soc/samsung/odroid.c @@ -0,0 +1,219 @@ +/* + * Copyright (C) 2017 Samsung Electronics Co., Ltd. + * + * 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 <linux/clk.h> +#include <linux/of.h> +#include <linux/of_device.h> +#include <linux/module.h> +#include <sound/soc.h> +#include <sound/pcm_params.h> +#include "i2s.h" +#include "i2s-regs.h" + +struct odroid_priv { + struct snd_soc_card card; + struct snd_soc_dai_link dai_link; + + struct clk *pll; + struct clk *rclk; +}; + +static int odroid_card_startup(struct snd_pcm_substream *substream) +{ + struct snd_pcm_runtime *runtime = substream->runtime; + + snd_pcm_hw_constraint_single(runtime, SNDRV_PCM_HW_PARAM_CHANNELS, 2); + return 0; +} + +static int odroid_card_hw_params(struct snd_pcm_substream *substream, + struct snd_pcm_hw_params *params) +{ + struct snd_soc_pcm_runtime *rtd = substream->private_data; + struct odroid_priv *priv = snd_soc_card_get_drvdata(rtd->card); + unsigned int pll_freq, rclk_freq; + int ret; + + switch (params_rate(params)) { + case 32000: + case 64000: + pll_freq = 131072000U; + break; + case 44100: + case 88200: + case 176400: + pll_freq = 180633600U; + break; + case 48000: + case 96000: + case 192000: + pll_freq = 196608000U; + break; + default: + return -EINVAL; + } + + ret = clk_set_rate(priv->pll, pll_freq + 1); + if (ret < 0) + return ret; + + rclk_freq = params_rate(params) * 256 * 4; + + ret = clk_set_rate(priv->rclk, rclk_freq); + if (ret < 0) + return ret; + + if (rtd->num_codecs > 1) { + struct snd_soc_dai *codec_dai = rtd->codec_dais[1]; + + ret = snd_soc_dai_set_sysclk(codec_dai, 0, rclk_freq, + SND_SOC_CLOCK_IN); + if (ret < 0) + return ret; + } + + return 0; +} + +static const struct snd_soc_ops odroid_card_ops = { + .startup = odroid_card_startup, + .hw_params = odroid_card_hw_params, +}; + +static void odroid_put_codec_of_nodes(struct snd_soc_dai_link *link) +{ + struct snd_soc_dai_link_component *component = link->codecs; + int i; + + for (i = 0; i < link->num_codecs; i++, component++) { + if (!component->of_node) + break; + of_node_put(component->of_node); + } +} + +static int odroid_audio_probe(struct platform_device *pdev) +{ + struct device *dev = &pdev->dev; + struct device_node *cpu, *codec; + struct odroid_priv *priv; + struct snd_soc_dai_link *link; + struct snd_soc_card *card; + int ret; + + priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL); + if (!priv) + return -ENOMEM; + + card = &priv->card; + card->dev = dev; + + card->owner = THIS_MODULE; + card->fully_routed = true; + + snd_soc_card_set_drvdata(card, priv); + + priv->pll = devm_clk_get(dev, "epll"); + if (IS_ERR(priv->pll)) + return PTR_ERR(priv->pll); + + priv->rclk = devm_clk_get(dev, "i2s_rclk"); + if (IS_ERR(priv->rclk)) + return PTR_ERR(priv->rclk); + + ret = snd_soc_of_parse_card_name(card, "model"); + if (ret < 0) + return ret; + + if (of_property_read_bool(dev->of_node, "samsung,audio-widgets")) { + ret = snd_soc_of_parse_audio_simple_widgets(card, + "samsung,audio-widgets"); + if (ret < 0) + return ret; + } + + if (of_property_read_bool(dev->of_node, "samsung,audio-routing")) { + ret = snd_soc_of_parse_audio_routing(card, + "samsung,audio-routing"); + if (ret < 0) + return ret; + } + + link = &priv->dai_link; + + link->ops = &odroid_card_ops; + link->dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF | + SND_SOC_DAIFMT_CBS_CFS; + + card->dai_link = &priv->dai_link; + card->num_links = 1; + + cpu = of_get_child_by_name(dev->of_node, "cpu"); + codec = of_get_child_by_name(dev->of_node, "codec"); + + link->cpu_of_node = of_parse_phandle(cpu, "sound-dai", 0); + if (!link->cpu_of_node) { + dev_err(dev, "Failed parsing cpu/sound-dai property\n"); + return -EINVAL; + } + + ret = snd_soc_of_get_dai_link_codecs(dev, codec, link); + if (ret < 0) + goto err_put_codec_n; + + link->platform_of_node = link->cpu_of_node; + + link->name = "Primary"; + link->stream_name = link->name; + + ret = devm_snd_soc_register_card(dev, card); + if (ret < 0) { + dev_err(dev, "snd_soc_register_card() failed: %d\n", ret); + goto err_put_i2s_n; + } + + return 0; + +err_put_i2s_n: + of_node_put(link->cpu_of_node); +err_put_codec_n: + odroid_put_codec_of_nodes(link); + return ret; +} + +static int odroid_audio_remove(struct platform_device *pdev) +{ + struct odroid_priv *priv = platform_get_drvdata(pdev); + + of_node_put(priv->dai_link.cpu_of_node); + odroid_put_codec_of_nodes(&priv->dai_link); + + return 0; +} + +static const struct of_device_id odroid_audio_of_match[] = { + { .compatible = "samsung,odroid-xu3-audio" }, + { .compatible = "samsung,odroid-xu4-audio"}, + { }, +}; +MODULE_DEVICE_TABLE(of, odroid_audio_of_match); + +static struct platform_driver odroid_audio_driver = { + .driver = { + .name = "odroid-audio", + .of_match_table = odroid_audio_of_match, + .pm = &snd_soc_pm_ops, + }, + .probe = odroid_audio_probe, + .remove = odroid_audio_remove, +}; +module_platform_driver(odroid_audio_driver); + +MODULE_AUTHOR("Sylwester Nawrocki <s.nawrocki@samsung.com>"); +MODULE_DESCRIPTION("Odroid XU3/XU4 audio support"); +MODULE_LICENSE("GPL v2"); |