174462Salfred// SPDX-License-Identifier: GPL-2.0+ 274462Salfred// 31839Swollman// Midas audio support 41839Swollman// 51839Swollman// Copyright (C) 2018 Simon Shields <simon@lineageos.org> 61839Swollman// Copyright (C) 2020 Samsung Electronics Co., Ltd. 71839Swollman 81839Swollman#include <linux/clk.h> 91839Swollman#include <linux/gpio/consumer.h> 108858Srgrimes#include <linux/mfd/wm8994/registers.h> 111839Swollman#include <linux/module.h> 1213771Smpp#include <linux/of.h> 131839Swollman#include <linux/regulator/consumer.h> 148858Srgrimes#include <sound/jack.h> 151839Swollman#include <sound/soc.h> 161839Swollman#include <sound/soc-dapm.h> 171839Swollman 188858Srgrimes#include "i2s.h" 191839Swollman#include "../codecs/wm8994.h" 201839Swollman 211839Swollman/* 228858Srgrimes * The MCLK1 clock source is XCLKOUT with its mux set to the external fixed rate 231839Swollman * oscillator (XXTI). 241839Swollman */ 251839Swollman#define MCLK1_RATE 24000000U 268858Srgrimes#define MCLK2_RATE 32768U 271839Swollman#define DEFAULT_FLL1_RATE 11289600U 281839Swollman 291839Swollmanstruct midas_priv { 301903Swollman struct regulator *reg_mic_bias; 3174462Salfred struct regulator *reg_submic_bias; 321903Swollman struct gpio_desc *gpio_fm_sel; 3350473Speter struct gpio_desc *gpio_lineout_sel; 341839Swollman unsigned int fll1_rate; 351839Swollman 361839Swollman struct snd_soc_jack headset_jack; 371839Swollman}; 381839Swollman 391839Swollmanstatic struct snd_soc_jack_pin headset_jack_pins[] = { 401839Swollman { 411839Swollman .pin = "Headphone", 421903Swollman .mask = SND_JACK_HEADPHONE, 431903Swollman }, 4474462Salfred { 451903Swollman .pin = "Headset Mic", 4674462Salfred .mask = SND_JACK_MICROPHONE, 4726211Swpaul }, 481839Swollman}; 491839Swollman 5074462Salfredstatic int midas_start_fll1(struct snd_soc_pcm_runtime *rtd, unsigned int rate) 511839Swollman{ 5274462Salfred struct snd_soc_card *card = rtd->card; 531839Swollman struct midas_priv *priv = snd_soc_card_get_drvdata(card); 5474462Salfred struct snd_soc_dai *aif1_dai = snd_soc_rtd_to_codec(rtd, 0); 5574462Salfred struct snd_soc_dai *cpu_dai = snd_soc_rtd_to_cpu(rtd, 0); 5674462Salfred int ret; 5774462Salfred 5874462Salfred if (!rate) 5974462Salfred rate = priv->fll1_rate; 6074462Salfred /* 6174462Salfred * If no new rate is requested, set FLL1 to a sane default for jack 6274462Salfred * detection. 6374462Salfred */ 6474462Salfred if (!rate) 6574462Salfred rate = DEFAULT_FLL1_RATE; 661839Swollman 671839Swollman if (rate != priv->fll1_rate && priv->fll1_rate) { 681839Swollman /* while reconfiguring, switch to MCLK2 for SYSCLK */ 691839Swollman ret = snd_soc_dai_set_sysclk(aif1_dai, WM8994_SYSCLK_MCLK2, 701839Swollman MCLK2_RATE, SND_SOC_CLOCK_IN); 711839Swollman if (ret < 0) { 721839Swollman dev_err(card->dev, "Unable to switch to MCLK2: %d\n", ret); 7313771Smpp return ret; 741839Swollman } 751839Swollman } 7674462Salfred 7774462Salfred ret = snd_soc_dai_set_pll(aif1_dai, WM8994_FLL1, WM8994_FLL_SRC_MCLK1, 781839Swollman MCLK1_RATE, rate); 791839Swollman if (ret < 0) { 8021059Speter dev_err(card->dev, "Failed to set FLL1 rate: %d\n", ret); 8121059Speter return ret; 821839Swollman } 831839Swollman priv->fll1_rate = rate; 841839Swollman 851839Swollman ret = snd_soc_dai_set_sysclk(aif1_dai, WM8994_SYSCLK_FLL1, 861839Swollman priv->fll1_rate, SND_SOC_CLOCK_IN); 871839Swollman if (ret < 0) { 881839Swollman dev_err(card->dev, "Failed to set SYSCLK source: %d\n", ret); 891839Swollman return ret; 901839Swollman } 911839Swollman 921839Swollman ret = snd_soc_dai_set_sysclk(cpu_dai, SAMSUNG_I2S_OPCLK, 0, 9374462Salfred SAMSUNG_I2S_OPCLK_PCLK); 941839Swollman if (ret < 0) { 951839Swollman dev_err(card->dev, "Failed to set OPCLK source: %d\n", ret); 9621059Speter return ret; 971839Swollman } 981839Swollman 9921059Speter return 0; 10021059Speter} 10174462Salfred 10221059Speterstatic int midas_stop_fll1(struct snd_soc_pcm_runtime *rtd) 10321059Speter{ 10421059Speter struct snd_soc_card *card = rtd->card; 10521059Speter struct midas_priv *priv = snd_soc_card_get_drvdata(card); 10621059Speter struct snd_soc_dai *aif1_dai = snd_soc_rtd_to_codec(rtd, 0); 10721059Speter int ret; 10821059Speter 10921059Speter ret = snd_soc_dai_set_sysclk(aif1_dai, WM8994_SYSCLK_MCLK2, 11021059Speter MCLK2_RATE, SND_SOC_CLOCK_IN); 11121059Speter if (ret < 0) { 11221059Speter dev_err(card->dev, "Unable to switch to MCLK2: %d\n", ret); 11321059Speter return ret; 11421059Speter } 11574462Salfred 1161839Swollman ret = snd_soc_dai_set_pll(aif1_dai, WM8994_FLL1, 0, 0, 0); 11774462Salfred if (ret < 0) { 11874462Salfred dev_err(card->dev, "Unable to stop FLL1: %d\n", ret); 11974462Salfred return ret; 1201839Swollman } 1211839Swollman 1221839Swollman priv->fll1_rate = 0; 1231839Swollman 12474462Salfred return 0; 12574462Salfred} 12674462Salfred 12774462Salfredstatic int midas_aif1_hw_params(struct snd_pcm_substream *substream, 12874462Salfred struct snd_pcm_hw_params *params) 12974462Salfred{ 13074462Salfred struct snd_soc_pcm_runtime *rtd = substream->private_data; 13174462Salfred unsigned int pll_out; 13274462Salfred 13374462Salfred /* AIF1CLK should be at least 3MHz for "optimal performance" */ 13474462Salfred if (params_rate(params) == 8000 || params_rate(params) == 11025) 13574462Salfred pll_out = params_rate(params) * 512; 13674462Salfred else 13774462Salfred pll_out = params_rate(params) * 256; 13874462Salfred 13974462Salfred return midas_start_fll1(rtd, pll_out); 14074462Salfred} 14174462Salfred 14274462Salfredstatic const struct snd_soc_ops midas_aif1_ops = { 14374462Salfred .hw_params = midas_aif1_hw_params, 14474462Salfred}; 14574462Salfred 1461839Swollman/* 1471839Swollman * We only have a single external speaker, so mix stereo data 1481839Swollman * to a single mono stream. 1491839Swollman */ 1501839Swollmanstatic int midas_ext_spkmode(struct snd_soc_dapm_widget *w, 1511839Swollman struct snd_kcontrol *kcontrol, int event) 1521839Swollman{ 1531839Swollman struct snd_soc_component *codec = snd_soc_dapm_to_component(w->dapm); 1541839Swollman int ret = 0; 1551839Swollman 15674462Salfred switch (event) { 1571839Swollman case SND_SOC_DAPM_PRE_PMU: 1581839Swollman ret = snd_soc_component_update_bits(codec, WM8994_SPKOUT_MIXERS, 1591839Swollman WM8994_SPKMIXR_TO_SPKOUTL_MASK, 1601839Swollman WM8994_SPKMIXR_TO_SPKOUTL); 1611839Swollman break; 1621839Swollman case SND_SOC_DAPM_POST_PMD: 16374462Salfred ret = snd_soc_component_update_bits(codec, WM8994_SPKOUT_MIXERS, 16474462Salfred WM8994_SPKMIXR_TO_SPKOUTL_MASK, 16574462Salfred 0); 16674462Salfred break; 16774462Salfred } 16874462Salfred 1691839Swollman return ret; 1701839Swollman} 1711839Swollman 1721839Swollmanstatic int midas_mic_bias(struct snd_soc_dapm_widget *w, 1731839Swollman struct snd_kcontrol *kcontrol, int event) 1741839Swollman{ 1751839Swollman struct snd_soc_card *card = w->dapm->card; 1761839Swollman struct midas_priv *priv = snd_soc_card_get_drvdata(card); 1771839Swollman 1781839Swollman switch (event) { 1791839Swollman case SND_SOC_DAPM_PRE_PMU: 1801839Swollman return regulator_enable(priv->reg_mic_bias); 1811839Swollman case SND_SOC_DAPM_POST_PMD: 1821839Swollman return regulator_disable(priv->reg_mic_bias); 1831839Swollman } 1841839Swollman 1851839Swollman return 0; 1861839Swollman} 1871839Swollman 1881839Swollmanstatic int midas_submic_bias(struct snd_soc_dapm_widget *w, 1891839Swollman struct snd_kcontrol *kcontrol, int event) 1901839Swollman{ 1911839Swollman struct snd_soc_card *card = w->dapm->card; 1921839Swollman struct midas_priv *priv = snd_soc_card_get_drvdata(card); 1931839Swollman 1941839Swollman switch (event) { 1951839Swollman case SND_SOC_DAPM_PRE_PMU: 1961839Swollman return regulator_enable(priv->reg_submic_bias); 1971839Swollman case SND_SOC_DAPM_POST_PMD: 1981839Swollman return regulator_disable(priv->reg_submic_bias); 1991839Swollman } 2001839Swollman 2011839Swollman return 0; 2021839Swollman} 2031839Swollman 2041839Swollmanstatic int midas_fm_set(struct snd_soc_dapm_widget *w, 2051839Swollman struct snd_kcontrol *kcontrol, int event) 2061839Swollman{ 2071839Swollman struct snd_soc_card *card = w->dapm->card; 20874462Salfred struct midas_priv *priv = snd_soc_card_get_drvdata(card); 2091839Swollman 21074462Salfred if (!priv->gpio_fm_sel) 21174462Salfred return 0; 21274462Salfred 21374462Salfred switch (event) { 21474462Salfred case SND_SOC_DAPM_PRE_PMU: 21574462Salfred gpiod_set_value_cansleep(priv->gpio_fm_sel, 1); 21674462Salfred break; 21774462Salfred case SND_SOC_DAPM_POST_PMD: 21874462Salfred gpiod_set_value_cansleep(priv->gpio_fm_sel, 0); 21974462Salfred break; 22074462Salfred } 22174462Salfred 22274462Salfred return 0; 22374462Salfred} 22474462Salfred 22574462Salfredstatic int midas_line_set(struct snd_soc_dapm_widget *w, 2261839Swollman struct snd_kcontrol *kcontrol, int event) 22774462Salfred{ 2281839Swollman struct snd_soc_card *card = w->dapm->card; 2291839Swollman struct midas_priv *priv = snd_soc_card_get_drvdata(card); 2301839Swollman 2311839Swollman if (!priv->gpio_lineout_sel) 2321839Swollman return 0; 2331839Swollman 2341839Swollman switch (event) { 2351839Swollman case SND_SOC_DAPM_PRE_PMU: 2361839Swollman gpiod_set_value_cansleep(priv->gpio_lineout_sel, 1); 2371839Swollman break; 2381839Swollman case SND_SOC_DAPM_POST_PMD: 2391839Swollman gpiod_set_value_cansleep(priv->gpio_lineout_sel, 0); 2401839Swollman break; 2411839Swollman } 24213771Smpp 2431839Swollman return 0; 2441839Swollman} 2451839Swollman 2461839Swollmanstatic const struct snd_kcontrol_new midas_controls[] = { 24774462Salfred SOC_DAPM_PIN_SWITCH("HP"), 24874462Salfred 24974462Salfred SOC_DAPM_PIN_SWITCH("SPK"), 25074462Salfred SOC_DAPM_PIN_SWITCH("RCV"), 2511839Swollman 2521839Swollman SOC_DAPM_PIN_SWITCH("LINE"), 2531839Swollman SOC_DAPM_PIN_SWITCH("HDMI"), 2541839Swollman 2551839Swollman SOC_DAPM_PIN_SWITCH("Main Mic"), 25674462Salfred SOC_DAPM_PIN_SWITCH("Sub Mic"), 2571839Swollman SOC_DAPM_PIN_SWITCH("Headset Mic"), 2581839Swollman 2591839Swollman SOC_DAPM_PIN_SWITCH("FM In"), 2608858Srgrimes}; 2611839Swollman 2621839Swollmanstatic const struct snd_soc_dapm_widget midas_dapm_widgets[] = { 2631839Swollman SND_SOC_DAPM_HP("HP", NULL), 2641839Swollman 26574462Salfred SND_SOC_DAPM_SPK("SPK", midas_ext_spkmode), 26674462Salfred SND_SOC_DAPM_SPK("RCV", NULL), 2671839Swollman 26874462Salfred /* FIXME: toggle MAX77693 on i9300/i9305 */ 26974462Salfred SND_SOC_DAPM_LINE("LINE", midas_line_set), 27074462Salfred SND_SOC_DAPM_LINE("HDMI", NULL), 27174462Salfred SND_SOC_DAPM_LINE("FM In", midas_fm_set), 27274462Salfred 2731839Swollman SND_SOC_DAPM_HP("Headphone", NULL), 2741903Swollman SND_SOC_DAPM_MIC("Headset Mic", NULL), 27574462Salfred SND_SOC_DAPM_MIC("Main Mic", midas_mic_bias), 27674462Salfred SND_SOC_DAPM_MIC("Sub Mic", midas_submic_bias), 27774462Salfred}; 27874462Salfred 27974462Salfredstatic int midas_set_bias_level(struct snd_soc_card *card, 28074462Salfred struct snd_soc_dapm_context *dapm, 28174462Salfred enum snd_soc_bias_level level) 28274462Salfred{ 28374462Salfred struct snd_soc_pcm_runtime *rtd = snd_soc_get_pcm_runtime(card, 2841839Swollman &card->dai_link[0]); 2851839Swollman struct snd_soc_dai *aif1_dai = snd_soc_rtd_to_codec(rtd, 0); 28674462Salfred 28774462Salfred if (dapm->dev != aif1_dai->dev) 2881839Swollman return 0; 28974462Salfred 29074462Salfred switch (level) { 29174462Salfred case SND_SOC_BIAS_STANDBY: 29274462Salfred return midas_stop_fll1(rtd); 29374462Salfred case SND_SOC_BIAS_PREPARE: 29474462Salfred return midas_start_fll1(rtd, 0); 29574462Salfred default: 29674462Salfred break; 29774462Salfred } 29874462Salfred 29974462Salfred return 0; 3001839Swollman} 3011839Swollman 3021839Swollmanstatic int midas_late_probe(struct snd_soc_card *card) 30374462Salfred{ 30474462Salfred struct snd_soc_pcm_runtime *rtd = snd_soc_get_pcm_runtime(card, 3051839Swollman &card->dai_link[0]); 30674462Salfred struct snd_soc_dai *aif1_dai = snd_soc_rtd_to_codec(rtd, 0); 30774462Salfred struct midas_priv *priv = snd_soc_card_get_drvdata(card); 30874462Salfred int ret; 30974462Salfred 31074462Salfred /* Use MCLK2 as SYSCLK for boot */ 31174462Salfred ret = snd_soc_dai_set_sysclk(aif1_dai, WM8994_SYSCLK_MCLK2, MCLK2_RATE, 31274462Salfred SND_SOC_CLOCK_IN); 31374462Salfred if (ret < 0) { 3141839Swollman dev_err(aif1_dai->dev, "Failed to switch to MCLK2: %d\n", ret); 31574462Salfred return ret; 31674462Salfred } 31774462Salfred 3181903Swollman ret = snd_soc_card_jack_new_pins(card, "Headset", 31974462Salfred SND_JACK_HEADSET | SND_JACK_MECHANICAL | 32074462Salfred SND_JACK_BTN_0 | SND_JACK_BTN_1 | SND_JACK_BTN_2 | 32174462Salfred SND_JACK_BTN_3 | SND_JACK_BTN_4 | SND_JACK_BTN_5, 3221839Swollman &priv->headset_jack, 32374462Salfred headset_jack_pins, 32474462Salfred ARRAY_SIZE(headset_jack_pins)); 32574462Salfred if (ret) 32674462Salfred return ret; 32774462Salfred 32874462Salfred wm8958_mic_detect(aif1_dai->component, &priv->headset_jack, 32974462Salfred NULL, NULL, NULL, NULL); 3301839Swollman return 0; 3311839Swollman} 33274462Salfred 33374462Salfredstatic struct snd_soc_dai_driver midas_ext_dai[] = { 33474462Salfred { 33574462Salfred .name = "Voice call", 33674462Salfred .playback = { 33774462Salfred .channels_min = 1, 33874462Salfred .channels_max = 2, 33974462Salfred .rate_min = 8000, 34074462Salfred .rate_max = 16000, 34174462Salfred .rates = (SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_16000), 34274462Salfred .formats = SNDRV_PCM_FMTBIT_S16_LE, 34374462Salfred }, 34474462Salfred .capture = { 34574462Salfred .channels_min = 1, 3461903Swollman .channels_max = 2, 3471839Swollman .rate_min = 8000, 34874462Salfred .rate_max = 16000, 34974462Salfred .rates = (SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_16000), 35074462Salfred .formats = SNDRV_PCM_FMTBIT_S16_LE, 35174462Salfred }, 35274462Salfred }, 35374462Salfred { 35474462Salfred .name = "Bluetooth", 35574462Salfred .playback = { 35674462Salfred .channels_min = 1, 35774462Salfred .channels_max = 2, 35874462Salfred .rate_min = 8000, 35974462Salfred .rate_max = 16000, 36074462Salfred .rates = (SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_16000), 36174462Salfred .formats = SNDRV_PCM_FMTBIT_S16_LE, 36274462Salfred }, 36374462Salfred .capture = { 36426211Swpaul .channels_min = 1, 36574462Salfred .channels_max = 2, 36626211Swpaul .rate_min = 8000, 36774462Salfred .rate_max = 16000, 36826211Swpaul .rates = (SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_16000), 36974462Salfred .formats = SNDRV_PCM_FMTBIT_S16_LE, 37074462Salfred }, 37126211Swpaul }, 37226211Swpaul}; 37326211Swpaul 37426211Swpaulstatic const struct snd_soc_component_driver midas_component = { 3751839Swollman .name = "midas-audio", 3761839Swollman}; 3771903Swollman 37874462SalfredSND_SOC_DAILINK_DEFS(wm1811_hifi, 37974462Salfred DAILINK_COMP_ARRAY(COMP_EMPTY()), 3801903Swollman DAILINK_COMP_ARRAY(COMP_CODEC(NULL, "wm8994-aif1")), 3811839Swollman DAILINK_COMP_ARRAY(COMP_EMPTY())); 3821839Swollman 3831839SwollmanSND_SOC_DAILINK_DEFS(wm1811_voice, 3848858Srgrimes DAILINK_COMP_ARRAY(COMP_EMPTY()), 3851903Swollman DAILINK_COMP_ARRAY(COMP_CODEC(NULL, "wm8994-aif2")), 3861903Swollman DAILINK_COMP_ARRAY(COMP_EMPTY())); 3871903Swollman 3881903SwollmanSND_SOC_DAILINK_DEFS(wm1811_bt, 3891839Swollman DAILINK_COMP_ARRAY(COMP_EMPTY()), 3901839Swollman DAILINK_COMP_ARRAY(COMP_CODEC(NULL, "wm8994-aif3")), 3911839Swollman DAILINK_COMP_ARRAY(COMP_EMPTY())); 3921839Swollman 3931903Swollmanstatic struct snd_soc_dai_link midas_dai[] = { 39474462Salfred { 39574462Salfred .name = "WM8994 AIF1", 3961903Swollman .stream_name = "HiFi Primary", 3971839Swollman .ops = &midas_aif1_ops, 3981903Swollman .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF | 3998858Srgrimes SND_SOC_DAIFMT_CBM_CFM, 4001839Swollman SND_SOC_DAILINK_REG(wm1811_hifi), 4011839Swollman }, { 4021839Swollman .name = "WM1811 Voice", 4031839Swollman .stream_name = "Voice call", 4041839Swollman .ignore_suspend = 1, 4051839Swollman SND_SOC_DAILINK_REG(wm1811_voice), 4061839Swollman }, { 40774462Salfred .name = "WM1811 BT", 40874462Salfred .stream_name = "Bluetooth", 40974462Salfred .ignore_suspend = 1, 41074462Salfred SND_SOC_DAILINK_REG(wm1811_bt), 41174462Salfred }, 41274462Salfred}; 4131839Swollman 41474462Salfredstatic struct snd_soc_card midas_card = { 4151839Swollman .name = "Midas WM1811", 41674462Salfred .owner = THIS_MODULE, 41774462Salfred 41874462Salfred .dai_link = midas_dai, 41974462Salfred .num_links = ARRAY_SIZE(midas_dai), 42074462Salfred .controls = midas_controls, 42174462Salfred .num_controls = ARRAY_SIZE(midas_controls), 42274462Salfred .dapm_widgets = midas_dapm_widgets, 42374462Salfred .num_dapm_widgets = ARRAY_SIZE(midas_dapm_widgets), 42474462Salfred 42574462Salfred .set_bias_level = midas_set_bias_level, 42674462Salfred .late_probe = midas_late_probe, 42774462Salfred}; 42874462Salfred 42974462Salfredstatic int midas_probe(struct platform_device *pdev) 43074462Salfred{ 43174462Salfred struct device_node *cpu_dai_node = NULL, *codec_dai_node = NULL; 43274462Salfred struct device_node *cpu = NULL, *codec = NULL; 43374462Salfred struct snd_soc_card *card = &midas_card; 43474462Salfred struct device *dev = &pdev->dev; 4351839Swollman static struct snd_soc_dai_link *dai_link; 43674462Salfred struct midas_priv *priv; 43774462Salfred int ret, i; 43874462Salfred 43974462Salfred priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL); 44074462Salfred if (!priv) 44174462Salfred return -ENOMEM; 44274462Salfred 44374462Salfred snd_soc_card_set_drvdata(card, priv); 44474462Salfred card->dev = dev; 44574462Salfred 44674462Salfred priv->reg_mic_bias = devm_regulator_get(dev, "mic-bias"); 44774462Salfred if (IS_ERR(priv->reg_mic_bias)) { 44874462Salfred dev_err(dev, "Failed to get mic bias regulator\n"); 44974462Salfred return PTR_ERR(priv->reg_mic_bias); 45074462Salfred } 45174462Salfred 45274462Salfred priv->reg_submic_bias = devm_regulator_get(dev, "submic-bias"); 45374462Salfred if (IS_ERR(priv->reg_submic_bias)) { 45474462Salfred dev_err(dev, "Failed to get submic bias regulator\n"); 45574462Salfred return PTR_ERR(priv->reg_submic_bias); 45674462Salfred } 45774462Salfred 45874462Salfred priv->gpio_fm_sel = devm_gpiod_get_optional(dev, "fm-sel", GPIOD_OUT_HIGH); 45974462Salfred if (IS_ERR(priv->gpio_fm_sel)) { 46074462Salfred dev_err(dev, "Failed to get FM selection GPIO\n"); 46174462Salfred return PTR_ERR(priv->gpio_fm_sel); 46274462Salfred } 46374462Salfred 46474462Salfred priv->gpio_lineout_sel = devm_gpiod_get_optional(dev, "lineout-sel", 46574462Salfred GPIOD_OUT_HIGH); 46674462Salfred if (IS_ERR(priv->gpio_lineout_sel)) { 46774462Salfred dev_err(dev, "Failed to get line out selection GPIO\n"); 46874462Salfred return PTR_ERR(priv->gpio_lineout_sel); 46974462Salfred } 47074462Salfred 47174462Salfred ret = snd_soc_of_parse_card_name(card, "model"); 47274462Salfred if (ret < 0) { 47374462Salfred dev_err(dev, "Card name is not specified\n"); 47474462Salfred return ret; 47574462Salfred } 47674462Salfred 47774462Salfred ret = snd_soc_of_parse_audio_routing(card, "audio-routing"); 47874462Salfred if (ret < 0) { 4791839Swollman /* Backwards compatible way */ 48074462Salfred ret = snd_soc_of_parse_audio_routing(card, "samsung,audio-routing"); 48174462Salfred if (ret < 0) { 48274462Salfred dev_err(dev, "Audio routing invalid/unspecified\n"); 48374462Salfred return ret; 48474462Salfred } 48574462Salfred } 48674462Salfred 48774462Salfred cpu = of_get_child_by_name(dev->of_node, "cpu"); 48874462Salfred if (!cpu) 48974462Salfred return -EINVAL; 49074462Salfred 49174462Salfred codec = of_get_child_by_name(dev->of_node, "codec"); 49274462Salfred if (!codec) { 49374462Salfred of_node_put(cpu); 49474462Salfred return -EINVAL; 49574462Salfred } 49674462Salfred 49774462Salfred cpu_dai_node = of_parse_phandle(cpu, "sound-dai", 0); 498 of_node_put(cpu); 499 if (!cpu_dai_node) { 500 dev_err(dev, "parsing cpu/sound-dai failed\n"); 501 of_node_put(codec); 502 return -EINVAL; 503 } 504 505 codec_dai_node = of_parse_phandle(codec, "sound-dai", 0); 506 of_node_put(codec); 507 if (!codec_dai_node) { 508 dev_err(dev, "audio-codec property invalid/missing\n"); 509 ret = -EINVAL; 510 goto put_cpu_dai_node; 511 } 512 513 for_each_card_prelinks(card, i, dai_link) { 514 dai_link->codecs->of_node = codec_dai_node; 515 dai_link->cpus->of_node = cpu_dai_node; 516 dai_link->platforms->of_node = cpu_dai_node; 517 } 518 519 ret = devm_snd_soc_register_component(dev, &midas_component, 520 midas_ext_dai, ARRAY_SIZE(midas_ext_dai)); 521 if (ret < 0) { 522 dev_err(dev, "Failed to register component: %d\n", ret); 523 goto put_codec_dai_node; 524 } 525 526 ret = devm_snd_soc_register_card(dev, card); 527 if (ret < 0) { 528 dev_err(dev, "Failed to register card: %d\n", ret); 529 goto put_codec_dai_node; 530 } 531 532 return 0; 533 534put_codec_dai_node: 535 of_node_put(codec_dai_node); 536put_cpu_dai_node: 537 of_node_put(cpu_dai_node); 538 return ret; 539} 540 541static const struct of_device_id midas_of_match[] = { 542 { .compatible = "samsung,midas-audio" }, 543 { }, 544}; 545MODULE_DEVICE_TABLE(of, midas_of_match); 546 547static struct platform_driver midas_driver = { 548 .driver = { 549 .name = "midas-audio", 550 .of_match_table = midas_of_match, 551 .pm = &snd_soc_pm_ops, 552 }, 553 .probe = midas_probe, 554}; 555module_platform_driver(midas_driver); 556 557MODULE_AUTHOR("Simon Shields <simon@lineageos.org>"); 558MODULE_DESCRIPTION("ASoC support for Midas"); 559MODULE_LICENSE("GPL v2"); 560