1 // SPDX-License-Identifier: GPL-2.0
6 #include <linux/clk-provider.h>
12 #include "i2s-regs.h"
27 	struct snd_pcm_runtime *runtime = substream->runtime;  in odroid_card_fe_startup()
38 	struct odroid_priv *priv = snd_soc_card_get_drvdata(rtd->card);  in odroid_card_fe_hw_params()
42 	spin_lock_irqsave(&priv->lock, flags);  in odroid_card_fe_hw_params()
43 	if (priv->be_active && priv->be_sample_rate != params_rate(params))  in odroid_card_fe_hw_params()
44 		ret = -EINVAL;  in odroid_card_fe_hw_params()
45 	spin_unlock_irqrestore(&priv->lock, flags);  in odroid_card_fe_hw_params()
59 	struct odroid_priv *priv = snd_soc_card_get_drvdata(rtd->card);  in odroid_card_be_hw_params()
81 		return -EINVAL;  in odroid_card_be_hw_params()
84 	ret = clk_set_rate(priv->clk_i2s_bus, pll_freq / 2 + 1);  in odroid_card_be_hw_params()
95 	ret = clk_set_rate(priv->sclk_i2s, rclk_freq);  in odroid_card_be_hw_params()
99 	if (rtd->dai_link->num_codecs > 1) {  in odroid_card_be_hw_params()
108 	spin_lock_irqsave(&priv->lock, flags);  in odroid_card_be_hw_params()
109 	priv->be_sample_rate = params_rate(params);  in odroid_card_be_hw_params()
110 	spin_unlock_irqrestore(&priv->lock, flags);  in odroid_card_be_hw_params()
118 	struct odroid_priv *priv = snd_soc_card_get_drvdata(rtd->card);  in odroid_card_be_trigger()
121 	spin_lock_irqsave(&priv->lock, flags);  in odroid_card_be_trigger()
127 		priv->be_active = true;  in odroid_card_be_trigger()
133 		priv->be_active = false;  in odroid_card_be_trigger()
137 	spin_unlock_irqrestore(&priv->lock, flags);  in odroid_card_be_trigger()
149 	{ "I2S Playback", NULL, "Mixer DAI TX" },
150 	{ "HiFi Playback", NULL, "Mixer DAI TX" },
153 SND_SOC_DAILINK_DEFS(primary,
165 	DAILINK_COMP_ARRAY(COMP_PLATFORM("3830000.i2s-sec")));
169 		/* Primary FE <-> BE link */
171 		.name = "Primary",
172 		.stream_name = "Primary",
175 		SND_SOC_DAILINK_REG(primary),
177 		/* BE <-> CODECs link */
186 		/* Secondary FE <-> BE link */
199 	struct device *dev = &pdev->dev;  in odroid_audio_probe()
204 	struct snd_soc_dai_link *link, *codec_link;  in odroid_audio_probe()  local
209 		return -ENOMEM;  in odroid_audio_probe()
211 	card = &priv->card;  in odroid_audio_probe()
212 	card->dev = dev;  in odroid_audio_probe()
214 	card->owner = THIS_MODULE;  in odroid_audio_probe()
215 	card->fully_routed = true;  in odroid_audio_probe()
217 	spin_lock_init(&priv->lock);  in odroid_audio_probe()
224 	if (of_property_present(dev->of_node, "samsung,audio-widgets")) {  in odroid_audio_probe()
226 						"samsung,audio-widgets");  in odroid_audio_probe()
232 	if (of_property_present(dev->of_node, "audio-routing"))  in odroid_audio_probe()
233 		ret = snd_soc_of_parse_audio_routing(card, "audio-routing");  in odroid_audio_probe()
234 	else if (of_property_present(dev->of_node, "samsung,audio-routing"))  in odroid_audio_probe()
235 		ret = snd_soc_of_parse_audio_routing(card, "samsung,audio-routing");  in odroid_audio_probe()
239 	card->dai_link = odroid_card_dais;  in odroid_audio_probe()
240 	card->num_links = ARRAY_SIZE(odroid_card_dais);  in odroid_audio_probe()
242 	cpu = of_get_child_by_name(dev->of_node, "cpu");  in odroid_audio_probe()
243 	codec = of_get_child_by_name(dev->of_node, "codec");  in odroid_audio_probe()
244 	link = card->dai_link;  in odroid_audio_probe()
245 	codec_link = &card->dai_link[1];  in odroid_audio_probe()
248 	 * For backwards compatibility create the secondary CPU DAI link only  in odroid_audio_probe()
249 	 * if there are 2 CPU DAI entries in the cpu sound-dai property in DT.  in odroid_audio_probe()
252 	num_pcms = of_count_phandle_with_args(cpu, "sound-dai",  in odroid_audio_probe()
253 					      "#sound-dai-cells");  in odroid_audio_probe()
255 		card->dapm_routes = odroid_dapm_routes;  in odroid_audio_probe()
256 		card->num_dapm_routes = ARRAY_SIZE(odroid_dapm_routes);  in odroid_audio_probe()
257 		card->num_links--;  in odroid_audio_probe()
260 	for (i = 0; i < num_pcms; i++, link += 2) {  in odroid_audio_probe()
261 		ret = snd_soc_of_get_dai_name(cpu, &link->cpus->dai_name, i);  in odroid_audio_probe()
266 		cpu_dai = of_parse_phandle(cpu, "sound-dai", 0);  in odroid_audio_probe()
268 			ret = -EINVAL;  in odroid_audio_probe()
280 	if (codec_link->num_codecs > 1) {  in odroid_audio_probe()
281 		card->dai_link[0].dpcm_capture = 1;  in odroid_audio_probe()
282 		card->dai_link[1].dpcm_capture = 1;  in odroid_audio_probe()
285 	priv->sclk_i2s = of_clk_get_by_name(cpu_dai, "i2s_opclk1");  in odroid_audio_probe()
286 	if (IS_ERR(priv->sclk_i2s)) {  in odroid_audio_probe()
287 		ret = PTR_ERR(priv->sclk_i2s);  in odroid_audio_probe()
291 	priv->clk_i2s_bus = of_clk_get_by_name(cpu_dai, "iis");  in odroid_audio_probe()
292 	if (IS_ERR(priv->clk_i2s_bus)) {  in odroid_audio_probe()
293 		ret = PTR_ERR(priv->clk_i2s_bus);  in odroid_audio_probe()
308 	clk_put(priv->clk_i2s_bus);  in odroid_audio_probe()
310 	clk_put(priv->sclk_i2s);  in odroid_audio_probe()
323 	snd_soc_of_put_dai_link_codecs(&priv->card.dai_link[1]);  in odroid_audio_remove()
324 	clk_put(priv->sclk_i2s);  in odroid_audio_remove()
325 	clk_put(priv->clk_i2s_bus);  in odroid_audio_remove()
329 	{ .compatible	= "hardkernel,odroid-xu3-audio" },
330 	{ .compatible	= "hardkernel,odroid-xu4-audio" },
331 	{ .compatible	= "samsung,odroid-xu3-audio" },
332 	{ .compatible	= "samsung,odroid-xu4-audio" },
339 		.name		= "odroid-audio",