+++ /dev/null
-Samsung Exynos Odroid X2/U3 audio complex with MAX98090 codec
-
-Required properties:
- - compatible : "samsung,odroidx2-audio" - for Odroid X2 board,
- "samsung,odroidu3-audio" - for Odroid U3 board
- - samsung,model : the user-visible name of this sound complex
- - samsung,i2s-controller : the phandle of the I2S controller
- - samsung,audio-codec : the phandle of the MAX98090 audio codec
- - samsung,audio-routing : a list of the connections between audio
- components; each entry is a pair of strings, the first being the
- connection's sink, the second being the connection's source;
- valid names for sources and sinks are the MAX98090's pins (as
- documented in its binding), and the jacks on the board
- For Odroid X2:
- * Headphone Jack
- * Mic Jack
- * DMIC
-
- For Odroid U3:
- * Headphone Jack
- * Speakers
-
-Example:
-
-sound {
- compatible = "samsung,odroidu3-audio";
- samsung,i2s-controller = <&i2s0>;
- samsung,audio-codec = <&max98090>;
- samsung,model = "Odroid-X2";
- samsung,audio-routing =
- "Headphone Jack", "HPL",
- "Headphone Jack", "HPR",
- "IN1", "Mic Jack",
- "Mic Jack", "MICBIAS";
-};
+++ /dev/null
-/*
- * Copyright (C) 2014 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 as published by the
- * Free Software Foundation; either version 2 of the License, or (at your
- * option) any later version.
- */
-
-#include <linux/of.h>
-#include <linux/module.h>
-#include <sound/soc.h>
-#include <sound/pcm_params.h>
-#include "i2s.h"
-
-struct odroidx2_drv_data {
- const struct snd_soc_dapm_widget *dapm_widgets;
- unsigned int num_dapm_widgets;
-};
-
-/* The I2S CDCLK output clock frequency for the MAX98090 codec */
-#define MAX98090_MCLK 19200000
-
-static struct snd_soc_dai_link odroidx2_dai[];
-
-static int odroidx2_late_probe(struct snd_soc_card *card)
-{
- struct snd_soc_pcm_runtime *rtd;
- struct snd_soc_dai *codec_dai;
- struct snd_soc_dai *cpu_dai;
- int ret;
-
- rtd = snd_soc_get_pcm_runtime(card, card->dai_link[0].name);
- codec_dai = rtd->codec_dai;
- cpu_dai = rtd->cpu_dai;
-
- ret = snd_soc_dai_set_sysclk(codec_dai, 0, MAX98090_MCLK,
- SND_SOC_CLOCK_IN);
-
- if (ret < 0 || of_find_property(odroidx2_dai[0].codec_of_node,
- "clocks", NULL))
- return ret;
-
- /* Set the cpu DAI configuration in order to use CDCLK */
- return snd_soc_dai_set_sysclk(cpu_dai, SAMSUNG_I2S_CDCLK,
- 0, SND_SOC_CLOCK_OUT);
-}
-
-static const struct snd_soc_dapm_widget odroidx2_dapm_widgets[] = {
- SND_SOC_DAPM_HP("Headphone Jack", NULL),
- SND_SOC_DAPM_MIC("Mic Jack", NULL),
- SND_SOC_DAPM_MIC("DMIC", NULL),
-};
-
-static const struct snd_soc_dapm_widget odroidu3_dapm_widgets[] = {
- SND_SOC_DAPM_HP("Headphone Jack", NULL),
- SND_SOC_DAPM_SPK("Speakers", NULL),
-};
-
-static struct snd_soc_dai_link odroidx2_dai[] = {
- {
- .name = "MAX98090",
- .stream_name = "MAX98090 PCM",
- .codec_dai_name = "HiFi",
- .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
- SND_SOC_DAIFMT_CBM_CFM,
- }
-};
-
-static struct snd_soc_card odroidx2 = {
- .owner = THIS_MODULE,
- .dai_link = odroidx2_dai,
- .num_links = ARRAY_SIZE(odroidx2_dai),
- .fully_routed = true,
- .late_probe = odroidx2_late_probe,
-};
-
-static const struct odroidx2_drv_data odroidx2_drvdata = {
- .dapm_widgets = odroidx2_dapm_widgets,
- .num_dapm_widgets = ARRAY_SIZE(odroidx2_dapm_widgets),
-};
-
-static const struct odroidx2_drv_data odroidu3_drvdata = {
- .dapm_widgets = odroidu3_dapm_widgets,
- .num_dapm_widgets = ARRAY_SIZE(odroidu3_dapm_widgets),
-};
-
-static const struct of_device_id odroidx2_audio_of_match[] = {
- {
- .compatible = "samsung,odroidx2-audio",
- .data = &odroidx2_drvdata,
- }, {
- .compatible = "samsung,odroidu3-audio",
- .data = &odroidu3_drvdata,
- },
- { },
-};
-MODULE_DEVICE_TABLE(of, odroidx2_audio_of_match);
-
-static int odroidx2_audio_probe(struct platform_device *pdev)
-{
- struct device_node *snd_node = pdev->dev.of_node;
- struct snd_soc_card *card = &odroidx2;
- struct device_node *i2s_node, *codec_node;
- struct odroidx2_drv_data *dd;
- const struct of_device_id *of_id;
- int ret;
-
- of_id = of_match_node(odroidx2_audio_of_match, snd_node);
- dd = (struct odroidx2_drv_data *)of_id->data;
-
- card->num_dapm_widgets = dd->num_dapm_widgets;
- card->dapm_widgets = dd->dapm_widgets;
-
- card->dev = &pdev->dev;
-
- ret = snd_soc_of_parse_card_name(card, "samsung,model");
- if (ret < 0)
- return ret;
-
- ret = snd_soc_of_parse_audio_routing(card, "samsung,audio-routing");
- if (ret < 0)
- return ret;
-
- codec_node = of_parse_phandle(snd_node, "samsung,audio-codec", 0);
- if (!codec_node) {
- dev_err(&pdev->dev,
- "Failed parsing samsung,i2s-codec property\n");
- return -EINVAL;
- }
-
- i2s_node = of_parse_phandle(snd_node, "samsung,i2s-controller", 0);
- if (!i2s_node) {
- dev_err(&pdev->dev,
- "Failed parsing samsung,i2s-controller property\n");
- ret = -EINVAL;
- goto err_put_codec_n;
- }
-
- odroidx2_dai[0].codec_of_node = codec_node;
- odroidx2_dai[0].cpu_of_node = i2s_node;
- odroidx2_dai[0].platform_of_node = i2s_node;
-
- ret = snd_soc_register_card(card);
- if (ret) {
- dev_err(&pdev->dev, "snd_soc_register_card() failed: %d\n",
- ret);
- goto err_put_i2s_n;
- }
- return 0;
-
-err_put_i2s_n:
- of_node_put(i2s_node);
-err_put_codec_n:
- of_node_put(codec_node);
- return ret;
-}
-
-static int odroidx2_audio_remove(struct platform_device *pdev)
-{
- struct snd_soc_card *card = platform_get_drvdata(pdev);
-
- snd_soc_unregister_card(card);
-
- of_node_put(odroidx2_dai[0].cpu_of_node);
- of_node_put(odroidx2_dai[0].codec_of_node);
-
- return 0;
-}
-
-static struct platform_driver odroidx2_audio_driver = {
- .driver = {
- .name = "odroidx2-audio",
- .of_match_table = odroidx2_audio_of_match,
- .pm = &snd_soc_pm_ops,
- },
- .probe = odroidx2_audio_probe,
- .remove = odroidx2_audio_remove,
-};
-module_platform_driver(odroidx2_audio_driver);
-
-MODULE_AUTHOR("Chen Zhen <zhen1.chen@samsung.com>");
-MODULE_AUTHOR("Sylwester Nawrocki <s.nawrocki@samsung.com>");
-MODULE_DESCRIPTION("ALSA SoC Odroid X2/U3 Audio Support");
-MODULE_LICENSE("GPL v2");
projects / platform / kernel / linux-rpi.git / commitdiff