Orange Pi5 kernel

^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   1) // SPDX-License-Identifier: GPL-2.0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   2) //
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   3) // Copyright (C) 2017 Samsung Electronics Co., Ltd.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   4) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   5) #include <linux/clk.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   6) #include <linux/clk-provider.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   7) #include <linux/of.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   8) #include <linux/of_device.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   9) #include <linux/module.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  10) #include <sound/soc.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  11) #include <sound/pcm_params.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  12) #include "i2s.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  13) #include "i2s-regs.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  14) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  15) struct odroid_priv {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  16) 	struct snd_soc_card card;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  17) 	struct clk *clk_i2s_bus;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  18) 	struct clk *sclk_i2s;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  19) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  20) 	/* Spinlock protecting fields below */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  21) 	spinlock_t lock;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  22) 	unsigned int be_sample_rate;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  23) 	bool be_active;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  24) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  25) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  26) static int odroid_card_fe_startup(struct snd_pcm_substream *substream)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  27) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  28) 	struct snd_pcm_runtime *runtime = substream->runtime;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  29) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  30) 	snd_pcm_hw_constraint_single(runtime, SNDRV_PCM_HW_PARAM_CHANNELS, 2);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  31) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  32) 	return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  33) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  34) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  35) static int odroid_card_fe_hw_params(struct snd_pcm_substream *substream,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  36) 				      struct snd_pcm_hw_params *params)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  37) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  38) 	struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  39) 	struct odroid_priv *priv = snd_soc_card_get_drvdata(rtd->card);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  40) 	unsigned long flags;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  41) 	int ret = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  42) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  43) 	spin_lock_irqsave(&priv->lock, flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  44) 	if (priv->be_active && priv->be_sample_rate != params_rate(params))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  45) 		ret = -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  46) 	spin_unlock_irqrestore(&priv->lock, flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  47) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  48) 	return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  49) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  50) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  51) static const struct snd_soc_ops odroid_card_fe_ops = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  52) 	.startup = odroid_card_fe_startup,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  53) 	.hw_params = odroid_card_fe_hw_params,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  54) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  55) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  56) static int odroid_card_be_hw_params(struct snd_pcm_substream *substream,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  57) 				      struct snd_pcm_hw_params *params)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  58) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  59) 	struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  60) 	struct odroid_priv *priv = snd_soc_card_get_drvdata(rtd->card);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  61) 	unsigned int pll_freq, rclk_freq, rfs;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  62) 	unsigned long flags;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  63) 	int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  64) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  65) 	switch (params_rate(params)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  66) 	case 64000:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  67) 		pll_freq = 196608001U;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  68) 		rfs = 384;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  69) 		break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  70) 	case 44100:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  71) 	case 88200:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  72) 		pll_freq = 180633609U;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  73) 		rfs = 512;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  74) 		break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  75) 	case 32000:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  76) 	case 48000:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  77) 	case 96000:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  78) 		pll_freq = 196608001U;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  79) 		rfs = 512;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  80) 		break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  81) 	default:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  82) 		return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  83) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  84) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  85) 	ret = clk_set_rate(priv->clk_i2s_bus, pll_freq / 2 + 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  86) 	if (ret < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  87) 		return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  88) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  89) 	/*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  90) 	 *  We add 2 to the rclk_freq value in order to avoid too low clock
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  91) 	 *  frequency values due to the EPLL output frequency not being exact
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  92) 	 *  multiple of the audio sampling rate.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  93) 	 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  94) 	rclk_freq = params_rate(params) * rfs + 2;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  95) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  96) 	ret = clk_set_rate(priv->sclk_i2s, rclk_freq);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  97) 	if (ret < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  98) 		return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  99) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) 	if (rtd->num_codecs > 1) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) 		struct snd_soc_dai *codec_dai = asoc_rtd_to_codec(rtd, 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) 		ret = snd_soc_dai_set_sysclk(codec_dai, 0, rclk_freq,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) 					     SND_SOC_CLOCK_IN);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) 		if (ret < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) 			return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) 	spin_lock_irqsave(&priv->lock, flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) 	priv->be_sample_rate = params_rate(params);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) 	spin_unlock_irqrestore(&priv->lock, flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) 	return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) static int odroid_card_be_trigger(struct snd_pcm_substream *substream, int cmd)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) 	struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) 	struct odroid_priv *priv = snd_soc_card_get_drvdata(rtd->card);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) 	unsigned long flags;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122) 	spin_lock_irqsave(&priv->lock, flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) 	switch (cmd) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125) 	case SNDRV_PCM_TRIGGER_START:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) 	case SNDRV_PCM_TRIGGER_RESUME:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) 	case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128) 		priv->be_active = true;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129) 		break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131) 	case SNDRV_PCM_TRIGGER_STOP:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132) 	case SNDRV_PCM_TRIGGER_SUSPEND:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) 	case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134) 		priv->be_active = false;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135) 		break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138) 	spin_unlock_irqrestore(&priv->lock, flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140) 	return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143) static const struct snd_soc_ops odroid_card_be_ops = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144) 	.hw_params = odroid_card_be_hw_params,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145) 	.trigger = odroid_card_be_trigger,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148) /* DAPM routes for backward compatibility with old DTS */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149) static const struct snd_soc_dapm_route odroid_dapm_routes[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150) 	{ "I2S Playback", NULL, "Mixer DAI TX" },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151) 	{ "HiFi Playback", NULL, "Mixer DAI TX" },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154) SND_SOC_DAILINK_DEFS(primary,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155) 	DAILINK_COMP_ARRAY(COMP_EMPTY()),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156) 	DAILINK_COMP_ARRAY(COMP_DUMMY()),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157) 	DAILINK_COMP_ARRAY(COMP_PLATFORM("3830000.i2s")));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159) SND_SOC_DAILINK_DEFS(mixer,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160) 	DAILINK_COMP_ARRAY(COMP_DUMMY()),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161) 	DAILINK_COMP_ARRAY(COMP_EMPTY()),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162) 	DAILINK_COMP_ARRAY(COMP_DUMMY()));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164) SND_SOC_DAILINK_DEFS(secondary,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165) 	DAILINK_COMP_ARRAY(COMP_EMPTY()),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166) 	DAILINK_COMP_ARRAY(COMP_DUMMY()),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167) 	DAILINK_COMP_ARRAY(COMP_PLATFORM("3830000.i2s-sec")));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 169) static struct snd_soc_dai_link odroid_card_dais[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 170) 	{
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 171) 		/* Primary FE <-> BE link */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 172) 		.ops = &odroid_card_fe_ops,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 173) 		.name = "Primary",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 174) 		.stream_name = "Primary",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 175) 		.dynamic = 1,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 176) 		.dpcm_playback = 1,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 177) 		SND_SOC_DAILINK_REG(primary),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 178) 	}, {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 179) 		/* BE <-> CODECs link */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 180) 		.name = "I2S Mixer",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 181) 		.ops = &odroid_card_be_ops,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 182) 		.no_pcm = 1,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 183) 		.dpcm_playback = 1,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 184) 		.dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 185) 				SND_SOC_DAIFMT_CBS_CFS,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 186) 		SND_SOC_DAILINK_REG(mixer),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 187) 	}, {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 188) 		/* Secondary FE <-> BE link */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 189) 		.playback_only = 1,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 190) 		.ops = &odroid_card_fe_ops,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 191) 		.name = "Secondary",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 192) 		.stream_name = "Secondary",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 193) 		.dynamic = 1,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 194) 		.dpcm_playback = 1,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 195) 		SND_SOC_DAILINK_REG(secondary),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 196) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 197) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 198) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 199) static int odroid_audio_probe(struct platform_device *pdev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 200) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 201) 	struct device *dev = &pdev->dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 202) 	struct device_node *cpu_dai = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 203) 	struct device_node *cpu, *codec;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 204) 	struct odroid_priv *priv;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 205) 	struct snd_soc_card *card;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 206) 	struct snd_soc_dai_link *link, *codec_link;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 207) 	int num_pcms, ret, i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 208) 	struct of_phandle_args args = {};
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 209) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 210) 	priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 211) 	if (!priv)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 212) 		return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 213) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 214) 	card = &priv->card;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 215) 	card->dev = dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 216) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 217) 	card->owner = THIS_MODULE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 218) 	card->fully_routed = true;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 219) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 220) 	spin_lock_init(&priv->lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 221) 	snd_soc_card_set_drvdata(card, priv);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 222) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 223) 	ret = snd_soc_of_parse_card_name(card, "model");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 224) 	if (ret < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 225) 		return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 226) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 227) 	if (of_property_read_bool(dev->of_node, "samsung,audio-widgets")) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 228) 		ret = snd_soc_of_parse_audio_simple_widgets(card,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 229) 						"samsung,audio-widgets");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 230) 		if (ret < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 231) 			return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 232) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 233) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 234) 	if (of_property_read_bool(dev->of_node, "samsung,audio-routing")) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 235) 		ret = snd_soc_of_parse_audio_routing(card,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 236) 						"samsung,audio-routing");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 237) 		if (ret < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 238) 			return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 239) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 240) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 241) 	card->dai_link = odroid_card_dais;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 242) 	card->num_links = ARRAY_SIZE(odroid_card_dais);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 243) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 244) 	cpu = of_get_child_by_name(dev->of_node, "cpu");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 245) 	codec = of_get_child_by_name(dev->of_node, "codec");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 246) 	link = card->dai_link;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 247) 	codec_link = &card->dai_link[1];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 248) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 249) 	/*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 250) 	 * For backwards compatibility create the secondary CPU DAI link only
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 251) 	 * if there are 2 CPU DAI entries in the cpu sound-dai property in DT.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 252) 	 * Also add required DAPM routes not available in old DTS.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 253) 	 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 254) 	num_pcms = of_count_phandle_with_args(cpu, "sound-dai",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 255) 					      "#sound-dai-cells");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 256) 	if (num_pcms == 1) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 257) 		card->dapm_routes = odroid_dapm_routes;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 258) 		card->num_dapm_routes = ARRAY_SIZE(odroid_dapm_routes);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 259) 		card->num_links--;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 260) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 261) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 262) 	for (i = 0; i < num_pcms; i++, link += 2) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 263) 		ret = of_parse_phandle_with_args(cpu, "sound-dai",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 264) 						 "#sound-dai-cells", i, &args);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 265) 		if (ret < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 266) 			break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 267) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 268) 		if (!args.np) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 269) 			dev_err(dev, "sound-dai property parse error: %d\n", ret);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 270) 			ret = -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 271) 			break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 272) 		}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 273) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 274) 		ret = snd_soc_get_dai_name(&args, &link->cpus->dai_name);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 275) 		of_node_put(args.np);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 276) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 277) 		if (ret < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 278) 			break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 279) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 280) 	if (ret == 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 281) 		cpu_dai = of_parse_phandle(cpu, "sound-dai", 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 282) 		if (!cpu_dai)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 283) 			ret = -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 284) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 285) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 286) 	of_node_put(cpu);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 287) 	if (ret < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 288) 		goto err_put_node;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 289) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 290) 	ret = snd_soc_of_get_dai_link_codecs(dev, codec, codec_link);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 291) 	if (ret < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 292) 		goto err_put_cpu_dai;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 293) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 294) 	/* Set capture capability only for boards with the MAX98090 CODEC */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 295) 	if (codec_link->num_codecs > 1) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 296) 		card->dai_link[0].dpcm_capture = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 297) 		card->dai_link[1].dpcm_capture = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 298) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 299) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 300) 	priv->sclk_i2s = of_clk_get_by_name(cpu_dai, "i2s_opclk1");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 301) 	if (IS_ERR(priv->sclk_i2s)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 302) 		ret = PTR_ERR(priv->sclk_i2s);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 303) 		goto err_put_cpu_dai;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 304) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 305) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 306) 	priv->clk_i2s_bus = of_clk_get_by_name(cpu_dai, "iis");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 307) 	if (IS_ERR(priv->clk_i2s_bus)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 308) 		ret = PTR_ERR(priv->clk_i2s_bus);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 309) 		goto err_put_sclk;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 310) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 311) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 312) 	ret = devm_snd_soc_register_card(dev, card);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 313) 	if (ret < 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 314) 		if (ret != -EPROBE_DEFER)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 315) 			dev_err(dev, "snd_soc_register_card() failed: %d\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 316) 				ret);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 317) 		goto err_put_clk_i2s;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 318) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 319) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 320) 	of_node_put(cpu_dai);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 321) 	of_node_put(codec);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 322) 	return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 323) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 324) err_put_clk_i2s:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 325) 	clk_put(priv->clk_i2s_bus);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 326) err_put_sclk:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 327) 	clk_put(priv->sclk_i2s);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 328) err_put_cpu_dai:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 329) 	of_node_put(cpu_dai);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 330) 	snd_soc_of_put_dai_link_codecs(codec_link);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 331) err_put_node:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 332) 	of_node_put(codec);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 333) 	return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 334) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 335) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 336) static int odroid_audio_remove(struct platform_device *pdev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 337) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 338) 	struct odroid_priv *priv = platform_get_drvdata(pdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 339) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 340) 	snd_soc_of_put_dai_link_codecs(&priv->card.dai_link[1]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 341) 	clk_put(priv->sclk_i2s);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 342) 	clk_put(priv->clk_i2s_bus);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 343) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 344) 	return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 345) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 346) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 347) static const struct of_device_id odroid_audio_of_match[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 348) 	{ .compatible	= "hardkernel,odroid-xu3-audio" },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 349) 	{ .compatible	= "hardkernel,odroid-xu4-audio" },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 350) 	{ .compatible	= "samsung,odroid-xu3-audio" },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 351) 	{ .compatible	= "samsung,odroid-xu4-audio" },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 352) 	{ },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 353) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 354) MODULE_DEVICE_TABLE(of, odroid_audio_of_match);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 355) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 356) static struct platform_driver odroid_audio_driver = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 357) 	.driver = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 358) 		.name		= "odroid-audio",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 359) 		.of_match_table	= odroid_audio_of_match,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 360) 		.pm		= &snd_soc_pm_ops,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 361) 	},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 362) 	.probe	= odroid_audio_probe,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 363) 	.remove	= odroid_audio_remove,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 364) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 365) module_platform_driver(odroid_audio_driver);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 366) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 367) MODULE_AUTHOR("Sylwester Nawrocki <s.nawrocki@samsung.com>");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 368) MODULE_DESCRIPTION("Odroid XU3/XU4 audio support");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 369) MODULE_LICENSE("GPL v2");