@@ -225,4 +225,12 @@ config SND_SOC_SAMSUNG_ARIES_WM8994
via ADC, GPIOs, and an extcon device. Switching between the Mic
and TV-Out path is also handled.
+config SND_SOC_SAMSUNG_MIDAS_WM1811
+ tristate "SoC I2S Audio support for Midas boards"
+ depends on SND_SOC_SAMSUNG
+ select SND_SAMSUNG_I2S
+ select SND_SOC_WM8994
+ help
+ Say Y if you want to add support for SoC audio on the Midas boards.
+
endif #SND_SOC_SAMSUNG
@@ -42,6 +42,7 @@ snd-soc-odroid-objs := odroid.o
snd-soc-arndale-objs := arndale.o
snd-soc-tm2-wm5110-objs := tm2_wm5110.o
snd-soc-aries-wm8994-objs := aries_wm8994.o
+snd-soc-midas-wm1811-objs := midas_wm1811.o
obj-$(CONFIG_SND_SOC_SAMSUNG_JIVE_WM8750) += snd-soc-jive-wm8750.o
obj-$(CONFIG_SND_SOC_SAMSUNG_NEO1973_WM8753) += snd-soc-neo1973-wm8753.o
@@ -66,3 +67,4 @@ obj-$(CONFIG_SND_SOC_ODROID) += snd-soc-odroid.o
obj-$(CONFIG_SND_SOC_ARNDALE) += snd-soc-arndale.o
obj-$(CONFIG_SND_SOC_SAMSUNG_TM2_WM5110) += snd-soc-tm2-wm5110.o
obj-$(CONFIG_SND_SOC_SAMSUNG_ARIES_WM8994) += snd-soc-aries-wm8994.o
+obj-$(CONFIG_SND_SOC_SAMSUNG_MIDAS_WM1811) += snd-soc-midas-wm1811.o
new file mode 100644
@@ -0,0 +1,543 @@
+// SPDX-License-Identifier: GPL-2.0+
+//
+// Midas audio support
+//
+// Copyright (C) 2018 Simon Shields <simon@lineageos.org>
+// Copyright (C) 2020 Samsung Electronics Co., Ltd.
+
+#include <linux/clk.h>
+#include <linux/mfd/wm8994/registers.h>
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/of_device.h>
+#include <linux/of_gpio.h>
+#include <linux/regulator/consumer.h>
+#include <sound/jack.h>
+#include <sound/soc.h>
+#include <sound/soc-dapm.h>
+
+#include "i2s.h"
+#include "../codecs/wm8994.h"
+
+/*
+ * The MCLK1 clock source is XCLKOUT with its mux set to the external fixed rate
+ * oscillator (XXTI).
+ */
+#define MCLK1_RATE 24000000U
+#define MCLK2_RATE 32768U
+#define DEFAULT_FLL1_RATE 11289600U
+
+struct midas_priv {
+ struct regulator *reg_mic_bias;
+ struct regulator *reg_submic_bias;
+ struct gpio_desc *gpio_fm_sel;
+ struct gpio_desc *gpio_lineout_sel;
+ unsigned int fll1_rate;
+
+ struct snd_soc_jack headset_jack;
+};
+
+static int midas_start_fll1(struct snd_soc_pcm_runtime *rtd, unsigned int rate)
+{
+ struct snd_soc_card *card = rtd->card;
+ struct midas_priv *priv = snd_soc_card_get_drvdata(card);
+ struct snd_soc_dai *aif1_dai = asoc_rtd_to_codec(rtd, 0);
+ struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(rtd, 0);
+ int ret;
+
+ if (!rate)
+ rate = priv->fll1_rate;
+ /*
+ * If no new rate is requested, set FLL1 to a sane default for jack
+ * detection.
+ */
+ if (!rate)
+ rate = DEFAULT_FLL1_RATE;
+
+ if (rate != priv->fll1_rate && priv->fll1_rate) {
+ /* while reconfiguring, switch to MCLK2 for SYSCLK */
+ ret = snd_soc_dai_set_sysclk(aif1_dai, WM8994_SYSCLK_MCLK2,
+ MCLK2_RATE, SND_SOC_CLOCK_IN);
+ if (ret < 0) {
+ dev_err(card->dev, "Unable to switch to MCLK2: %d\n", ret);
+ return ret;
+ }
+ }
+
+ ret = snd_soc_dai_set_pll(aif1_dai, WM8994_FLL1, WM8994_FLL_SRC_MCLK1,
+ MCLK1_RATE, rate);
+ if (ret < 0) {
+ dev_err(card->dev, "Failed to set FLL1 rate: %d\n", ret);
+ return ret;
+ }
+ priv->fll1_rate = rate;
+
+ ret = snd_soc_dai_set_sysclk(aif1_dai, WM8994_SYSCLK_FLL1,
+ priv->fll1_rate, SND_SOC_CLOCK_IN);
+ if (ret < 0) {
+ dev_err(card->dev, "Failed to set SYSCLK source: %d\n", ret);
+ return ret;
+ }
+
+ ret = snd_soc_dai_set_sysclk(cpu_dai, SAMSUNG_I2S_OPCLK, 0,
+ SAMSUNG_I2S_OPCLK_PCLK);
+ if (ret < 0) {
+ dev_err(card->dev, "Failed to set OPCLK source: %d\n", ret);
+ return ret;
+ }
+
+ return 0;
+}
+
+static int midas_stop_fll1(struct snd_soc_pcm_runtime *rtd)
+{
+ struct snd_soc_card *card = rtd->card;
+ struct midas_priv *priv = snd_soc_card_get_drvdata(card);
+ struct snd_soc_dai *aif1_dai = asoc_rtd_to_codec(rtd, 0);
+ int ret;
+
+ ret = snd_soc_dai_set_sysclk(aif1_dai, WM8994_SYSCLK_MCLK2,
+ MCLK2_RATE, SND_SOC_CLOCK_IN);
+ if (ret < 0) {
+ dev_err(card->dev, "Unable to switch to MCLK2: %d\n", ret);
+ return ret;
+ }
+
+ ret = snd_soc_dai_set_pll(aif1_dai, WM8994_FLL1, 0, 0, 0);
+ if (ret < 0) {
+ dev_err(card->dev, "Unable to stop FLL1: %d\n", ret);
+ return ret;
+ }
+
+ priv->fll1_rate = 0;
+
+ return 0;
+}
+
+static int midas_aif1_hw_params(struct snd_pcm_substream *substream,
+ struct snd_pcm_hw_params *params)
+{
+ struct snd_soc_pcm_runtime *rtd = substream->private_data;
+ unsigned int pll_out;
+
+ /* AIF1CLK should be at least 3MHz for "optimal performance" */
+ if (params_rate(params) == 8000 || params_rate(params) == 11025)
+ pll_out = params_rate(params) * 512;
+ else
+ pll_out = params_rate(params) * 256;
+
+ return midas_start_fll1(rtd, pll_out);
+}
+
+static struct snd_soc_ops midas_aif1_ops = {
+ .hw_params = midas_aif1_hw_params,
+};
+
+/*
+ * We only have a single external speaker, so mix stereo data
+ * to a single mono stream.
+ */
+static int midas_ext_spkmode(struct snd_soc_dapm_widget *w,
+ struct snd_kcontrol *kcontrol, int event)
+{
+ struct snd_soc_component *codec = snd_soc_dapm_to_component(w->dapm);
+ int ret = 0;
+
+ switch (event) {
+ case SND_SOC_DAPM_PRE_PMU:
+ ret = snd_soc_component_update_bits(codec, WM8994_SPKOUT_MIXERS,
+ WM8994_SPKMIXR_TO_SPKOUTL_MASK,
+ WM8994_SPKMIXR_TO_SPKOUTL);
+ break;
+ case SND_SOC_DAPM_POST_PMD:
+ ret = snd_soc_component_update_bits(codec, WM8994_SPKOUT_MIXERS,
+ WM8994_SPKMIXR_TO_SPKOUTL_MASK,
+ 0);
+ break;
+ }
+
+ return ret;
+}
+
+static int midas_mic_bias(struct snd_soc_dapm_widget *w,
+ struct snd_kcontrol *kcontrol, int event)
+{
+ struct snd_soc_card *card = w->dapm->card;
+ struct midas_priv *priv = snd_soc_card_get_drvdata(card);
+
+ switch (event) {
+ case SND_SOC_DAPM_PRE_PMU:
+ return regulator_enable(priv->reg_mic_bias);
+ case SND_SOC_DAPM_POST_PMD:
+ return regulator_disable(priv->reg_mic_bias);
+ }
+
+ return 0;
+}
+
+static int midas_submic_bias(struct snd_soc_dapm_widget *w,
+ struct snd_kcontrol *kcontrol, int event)
+{
+ struct snd_soc_card *card = w->dapm->card;
+ struct midas_priv *priv = snd_soc_card_get_drvdata(card);
+
+ switch (event) {
+ case SND_SOC_DAPM_PRE_PMU:
+ return regulator_enable(priv->reg_submic_bias);
+ case SND_SOC_DAPM_POST_PMD:
+ return regulator_disable(priv->reg_submic_bias);
+ }
+
+ return 0;
+}
+
+static int midas_fm_set(struct snd_soc_dapm_widget *w,
+ struct snd_kcontrol *kcontrol, int event)
+{
+ struct snd_soc_card *card = w->dapm->card;
+ struct midas_priv *priv = snd_soc_card_get_drvdata(card);
+
+ if (!priv->gpio_fm_sel)
+ return 0;
+
+ switch (event) {
+ case SND_SOC_DAPM_PRE_PMU:
+ gpiod_set_value_cansleep(priv->gpio_fm_sel, 1);
+ break;
+ case SND_SOC_DAPM_POST_PMD:
+ gpiod_set_value_cansleep(priv->gpio_fm_sel, 0);
+ break;
+ }
+
+ return 0;
+}
+
+static int midas_line_set(struct snd_soc_dapm_widget *w,
+ struct snd_kcontrol *kcontrol, int event)
+{
+ struct snd_soc_card *card = w->dapm->card;
+ struct midas_priv *priv = snd_soc_card_get_drvdata(card);
+
+ if (!priv->gpio_lineout_sel)
+ return 0;
+
+ switch (event) {
+ case SND_SOC_DAPM_PRE_PMU:
+ gpiod_set_value_cansleep(priv->gpio_lineout_sel, 1);
+ break;
+ case SND_SOC_DAPM_POST_PMD:
+ gpiod_set_value_cansleep(priv->gpio_lineout_sel, 0);
+ break;
+ }
+
+ return 0;
+}
+
+static const struct snd_kcontrol_new midas_controls[] = {
+ SOC_DAPM_PIN_SWITCH("HP"),
+
+ SOC_DAPM_PIN_SWITCH("SPK"),
+ SOC_DAPM_PIN_SWITCH("RCV"),
+
+ SOC_DAPM_PIN_SWITCH("LINE"),
+ SOC_DAPM_PIN_SWITCH("HDMI"),
+
+ SOC_DAPM_PIN_SWITCH("Main Mic"),
+ SOC_DAPM_PIN_SWITCH("Sub Mic"),
+ SOC_DAPM_PIN_SWITCH("Headset Mic"),
+
+ SOC_DAPM_PIN_SWITCH("FM In"),
+};
+
+static const struct snd_soc_dapm_widget midas_dapm_widgets[] = {
+ SND_SOC_DAPM_HP("HP", NULL),
+
+ SND_SOC_DAPM_SPK("SPK", midas_ext_spkmode),
+ SND_SOC_DAPM_SPK("RCV", NULL),
+
+ /* FIXME: toggle MAX77693 on i9300/i9305 */
+ SND_SOC_DAPM_LINE("LINE", midas_line_set),
+ SND_SOC_DAPM_LINE("HDMI", NULL),
+ SND_SOC_DAPM_LINE("FM In", midas_fm_set),
+
+ SND_SOC_DAPM_MIC("Headset Mic", NULL),
+ SND_SOC_DAPM_MIC("Main Mic", midas_mic_bias),
+ SND_SOC_DAPM_MIC("Sub Mic", midas_submic_bias),
+};
+
+static int midas_set_bias_level(struct snd_soc_card *card,
+ struct snd_soc_dapm_context *dapm,
+ enum snd_soc_bias_level level)
+{
+ struct snd_soc_pcm_runtime *rtd = snd_soc_get_pcm_runtime(card,
+ &card->dai_link[0]);
+ struct snd_soc_dai *aif1_dai = asoc_rtd_to_codec(rtd, 0);
+
+ if (dapm->dev != aif1_dai->dev)
+ return 0;
+
+ switch (level) {
+ case SND_SOC_BIAS_STANDBY:
+ return midas_stop_fll1(rtd);
+ case SND_SOC_BIAS_PREPARE:
+ return midas_start_fll1(rtd, 0);
+ default:
+ break;
+ }
+
+ return 0;
+}
+
+static int midas_late_probe(struct snd_soc_card *card)
+{
+ struct snd_soc_pcm_runtime *rtd = snd_soc_get_pcm_runtime(card,
+ &card->dai_link[0]);
+ struct snd_soc_dai *aif1_dai = asoc_rtd_to_codec(rtd, 0);
+ struct midas_priv *priv = snd_soc_card_get_drvdata(card);
+ int ret;
+
+ /* Use MCLK2 as SYSCLK for boot */
+ ret = snd_soc_dai_set_sysclk(aif1_dai, WM8994_SYSCLK_MCLK2, MCLK2_RATE,
+ SND_SOC_CLOCK_IN);
+ if (ret < 0) {
+ dev_err(aif1_dai->dev, "Failed to switch to MCLK2: %d\n", ret);
+ return ret;
+ }
+
+ ret = snd_soc_card_jack_new(card, "Headset",
+ SND_JACK_HEADSET | SND_JACK_MECHANICAL |
+ SND_JACK_BTN_0 | SND_JACK_BTN_1 | SND_JACK_BTN_2 |
+ SND_JACK_BTN_3 | SND_JACK_BTN_4 | SND_JACK_BTN_5,
+ &priv->headset_jack, NULL, 0);
+ if (ret)
+ return ret;
+
+ wm8958_mic_detect(aif1_dai->component, &priv->headset_jack,
+ NULL, NULL, NULL, NULL);
+ return 0;
+}
+
+static struct snd_soc_dai_driver midas_ext_dai[] = {
+ {
+ .name = "Voice call",
+ .playback = {
+ .channels_min = 1,
+ .channels_max = 2,
+ .rate_min = 8000,
+ .rate_max = 16000,
+ .rates = (SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_16000),
+ .formats = SNDRV_PCM_FMTBIT_S16_LE,
+ },
+ .capture = {
+ .channels_min = 1,
+ .channels_max = 2,
+ .rate_min = 8000,
+ .rate_max = 16000,
+ .rates = (SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_16000),
+ .formats = SNDRV_PCM_FMTBIT_S16_LE,
+ },
+ },
+ {
+ .name = "Bluetooth",
+ .playback = {
+ .channels_min = 1,
+ .channels_max = 2,
+ .rate_min = 8000,
+ .rate_max = 16000,
+ .rates = (SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_16000),
+ .formats = SNDRV_PCM_FMTBIT_S16_LE,
+ },
+ .capture = {
+ .channels_min = 1,
+ .channels_max = 2,
+ .rate_min = 8000,
+ .rate_max = 16000,
+ .rates = (SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_16000),
+ .formats = SNDRV_PCM_FMTBIT_S16_LE,
+ },
+ },
+};
+
+static const struct snd_soc_component_driver midas_component = {
+ .name = "midas-audio",
+};
+
+SND_SOC_DAILINK_DEFS(wm1811_hifi,
+ DAILINK_COMP_ARRAY(COMP_EMPTY()),
+ DAILINK_COMP_ARRAY(COMP_CODEC(NULL, "wm8994-aif1")),
+ DAILINK_COMP_ARRAY(COMP_EMPTY()));
+
+SND_SOC_DAILINK_DEFS(wm1811_voice,
+ DAILINK_COMP_ARRAY(COMP_EMPTY()),
+ DAILINK_COMP_ARRAY(COMP_CODEC(NULL, "wm8994-aif2")),
+ DAILINK_COMP_ARRAY(COMP_EMPTY()));
+
+SND_SOC_DAILINK_DEFS(wm1811_bt,
+ DAILINK_COMP_ARRAY(COMP_EMPTY()),
+ DAILINK_COMP_ARRAY(COMP_CODEC(NULL, "wm8994-aif3")),
+ DAILINK_COMP_ARRAY(COMP_EMPTY()));
+
+static struct snd_soc_dai_link midas_dai[] = {
+ {
+ .name = "WM8994 AIF1",
+ .stream_name = "HiFi Primary",
+ .ops = &midas_aif1_ops,
+ .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
+ SND_SOC_DAIFMT_CBM_CFM,
+ SND_SOC_DAILINK_REG(wm1811_hifi),
+ }, {
+ .name = "WM1811 Voice",
+ .stream_name = "Voice call",
+ .ignore_suspend = 1,
+ SND_SOC_DAILINK_REG(wm1811_voice),
+ }, {
+ .name = "WM1811 BT",
+ .stream_name = "Bluetooth",
+ .ignore_suspend = 1,
+ SND_SOC_DAILINK_REG(wm1811_bt),
+ },
+};
+
+static struct snd_soc_card midas_card = {
+ .name = "Midas WM1811",
+ .owner = THIS_MODULE,
+
+ .dai_link = midas_dai,
+ .num_links = ARRAY_SIZE(midas_dai),
+ .controls = midas_controls,
+ .num_controls = ARRAY_SIZE(midas_controls),
+ .dapm_widgets = midas_dapm_widgets,
+ .num_dapm_widgets = ARRAY_SIZE(midas_dapm_widgets),
+
+ .set_bias_level = midas_set_bias_level,
+ .late_probe = midas_late_probe,
+};
+
+static int midas_probe(struct platform_device *pdev)
+{
+ struct device_node *cpu_dai_node = NULL, *codec_dai_node = NULL;
+ struct device_node *cpu = NULL, *codec = NULL;
+ struct snd_soc_card *card = &midas_card;
+ struct device *dev = &pdev->dev;
+ static struct snd_soc_dai_link *dai_link;
+ struct midas_priv *priv;
+ int ret, i;
+
+ priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);
+ if (!priv)
+ return -ENOMEM;
+
+ snd_soc_card_set_drvdata(card, priv);
+ card->dev = dev;
+
+ priv->reg_mic_bias = devm_regulator_get(dev, "mic-bias");
+ if (IS_ERR(priv->reg_mic_bias)) {
+ dev_err(dev, "Failed to get mic bias regulator\n");
+ return PTR_ERR(priv->reg_mic_bias);
+ }
+
+ priv->reg_submic_bias = devm_regulator_get(dev, "submic-bias");
+ if (IS_ERR(priv->reg_submic_bias)) {
+ dev_err(dev, "Failed to get submic bias regulator\n");
+ return PTR_ERR(priv->reg_submic_bias);
+ }
+
+ priv->gpio_fm_sel = devm_gpiod_get_optional(dev, "fm-sel", GPIOD_OUT_HIGH);
+ if (IS_ERR(priv->gpio_fm_sel)) {
+ dev_err(dev, "Failed to get FM selection GPIO\n");
+ return PTR_ERR(priv->gpio_fm_sel);
+ }
+
+ priv->gpio_lineout_sel = devm_gpiod_get_optional(dev, "lineout-sel",
+ GPIOD_OUT_HIGH);
+ if (IS_ERR(priv->gpio_lineout_sel)) {
+ dev_err(dev, "Failed to get line out selection GPIO\n");
+ return PTR_ERR(priv->gpio_lineout_sel);
+ }
+
+ ret = snd_soc_of_parse_card_name(card, "model");
+ if (ret < 0) {
+ dev_err(dev, "Card name is not specified\n");
+ return ret;
+ }
+
+ ret = snd_soc_of_parse_audio_routing(card, "samsung,audio-routing");
+ if (ret < 0) {
+ dev_err(dev, "Audio routing invalid/unspecified\n");
+ return ret;
+ }
+
+ cpu = of_get_child_by_name(dev->of_node, "cpu");
+ if (!cpu)
+ return -EINVAL;
+
+ codec = of_get_child_by_name(dev->of_node, "codec");
+ if (!codec) {
+ of_node_put(cpu);
+ return -EINVAL;
+ }
+
+ cpu_dai_node = of_parse_phandle(cpu, "sound-dai", 0);
+ of_node_put(cpu);
+ if (!cpu_dai_node) {
+ dev_err(dev, "parsing cpu/sound-dai failed\n");
+ of_node_put(codec);
+ return -EINVAL;
+ }
+
+ codec_dai_node = of_parse_phandle(codec, "sound-dai", 0);
+ of_node_put(codec);
+ if (!codec_dai_node) {
+ dev_err(dev, "audio-codec property invalid/missing\n");
+ ret = -EINVAL;
+ goto put_cpu_dai_node;
+ }
+
+ for_each_card_prelinks(card, i, dai_link) {
+ dai_link->codecs->of_node = codec_dai_node;
+ dai_link->cpus->of_node = cpu_dai_node;
+ dai_link->platforms->of_node = cpu_dai_node;
+ }
+
+ ret = devm_snd_soc_register_component(dev, &midas_component,
+ midas_ext_dai, ARRAY_SIZE(midas_ext_dai));
+ if (ret < 0) {
+ dev_err(dev, "Failed to register component: %d\n", ret);
+ goto put_codec_dai_node;
+ }
+
+ ret = devm_snd_soc_register_card(dev, card);
+ if (ret < 0) {
+ dev_err(dev, "Failed to register card: %d\n", ret);
+ goto put_codec_dai_node;
+ }
+
+ return 0;
+
+put_codec_dai_node:
+ of_node_put(codec_dai_node);
+put_cpu_dai_node:
+ of_node_put(cpu_dai_node);
+ return ret;
+}
+
+static const struct of_device_id midas_of_match[] = {
+ { .compatible = "samsung,midas-audio" },
+ { },
+};
+MODULE_DEVICE_TABLE(of, midas_of_match);
+
+static struct platform_driver midas_driver = {
+ .driver = {
+ .name = "midas-audio",
+ .of_match_table = midas_of_match,
+ .owner = THIS_MODULE,
+ .pm = &snd_soc_pm_ops,
+ },
+ .probe = midas_probe,
+};
+module_platform_driver(midas_driver);
+
+MODULE_AUTHOR("Simon Shields <simon@lineageos.org>");
+MODULE_DESCRIPTION("ASoC support for Midas");
+MODULE_LICENSE("GPL v2");