1 // SPDX-License-Identifier: GPL-2.0
6 #include <linux/clk-provider.h>
13 #include "i2s-regs.h"
28 	struct snd_pcm_runtime *runtime = substream->runtime;  in odroid_card_fe_startup()
39 	struct odroid_priv *priv = snd_soc_card_get_drvdata(rtd->card);  in odroid_card_fe_hw_params()
43 	spin_lock_irqsave(&priv->lock, flags);  in odroid_card_fe_hw_params()
44 	if (priv->be_active && priv->be_sample_rate != params_rate(params))  in odroid_card_fe_hw_params()
45 		ret = -EINVAL;  in odroid_card_fe_hw_params()
46 	spin_unlock_irqrestore(&priv->lock, flags);  in odroid_card_fe_hw_params()
60 	struct odroid_priv *priv = snd_soc_card_get_drvdata(rtd->card);  in odroid_card_be_hw_params()
82 		return -EINVAL;  in odroid_card_be_hw_params()
85 	ret = clk_set_rate(priv->clk_i2s_bus, pll_freq / 2 + 1);  in odroid_card_be_hw_params()
96 	ret = clk_set_rate(priv->sclk_i2s, rclk_freq);  in odroid_card_be_hw_params()
100 	if (rtd->num_codecs > 1) {  in odroid_card_be_hw_params()
109 	spin_lock_irqsave(&priv->lock, flags);  in odroid_card_be_hw_params()
110 	priv->be_sample_rate = params_rate(params);  in odroid_card_be_hw_params()
111 	spin_unlock_irqrestore(&priv->lock, flags);  in odroid_card_be_hw_params()
119 	struct odroid_priv *priv = snd_soc_card_get_drvdata(rtd->card);  in odroid_card_be_trigger()
122 	spin_lock_irqsave(&priv->lock, flags);  in odroid_card_be_trigger()
128 		priv->be_active = true;  in odroid_card_be_trigger()
134 		priv->be_active = false;  in odroid_card_be_trigger()
138 	spin_unlock_irqrestore(&priv->lock, flags);  in odroid_card_be_trigger()
167 	DAILINK_COMP_ARRAY(COMP_PLATFORM("3830000.i2s-sec")));
171 		/* Primary FE <-> BE link */
179 		/* BE <-> CODECs link */
188 		/* Secondary FE <-> BE link */
201 	struct device *dev = &pdev->dev;  in odroid_audio_probe()
212 		return -ENOMEM;  in odroid_audio_probe()
214 	card = &priv->card;  in odroid_audio_probe()
215 	card->dev = dev;  in odroid_audio_probe()
217 	card->owner = THIS_MODULE;  in odroid_audio_probe()
218 	card->fully_routed = true;  in odroid_audio_probe()
220 	spin_lock_init(&priv->lock);  in odroid_audio_probe()
227 	if (of_property_read_bool(dev->of_node, "samsung,audio-widgets")) {  in odroid_audio_probe()
229 						"samsung,audio-widgets");  in odroid_audio_probe()
234 	if (of_property_read_bool(dev->of_node, "samsung,audio-routing")) {  in odroid_audio_probe()
236 						"samsung,audio-routing");  in odroid_audio_probe()
241 	card->dai_link = odroid_card_dais;  in odroid_audio_probe()
242 	card->num_links = ARRAY_SIZE(odroid_card_dais);  in odroid_audio_probe()
244 	cpu = of_get_child_by_name(dev->of_node, "cpu");  in odroid_audio_probe()
245 	codec = of_get_child_by_name(dev->of_node, "codec");  in odroid_audio_probe()
246 	link = card->dai_link;  in odroid_audio_probe()
247 	codec_link = &card->dai_link[1];  in odroid_audio_probe()
251 	 * if there are 2 CPU DAI entries in the cpu sound-dai property in DT.  in odroid_audio_probe()
254 	num_pcms = of_count_phandle_with_args(cpu, "sound-dai",  in odroid_audio_probe()
255 					      "#sound-dai-cells");  in odroid_audio_probe()
257 		card->dapm_routes = odroid_dapm_routes;  in odroid_audio_probe()
258 		card->num_dapm_routes = ARRAY_SIZE(odroid_dapm_routes);  in odroid_audio_probe()
259 		card->num_links--;  in odroid_audio_probe()
263 		ret = of_parse_phandle_with_args(cpu, "sound-dai",  in odroid_audio_probe()
264 						 "#sound-dai-cells", i, &args);  in odroid_audio_probe()
269 			dev_err(dev, "sound-dai property parse error: %d\n", ret);  in odroid_audio_probe()
270 			ret = -EINVAL;  in odroid_audio_probe()
274 		ret = snd_soc_get_dai_name(&args, &link->cpus->dai_name);  in odroid_audio_probe()
281 		cpu_dai = of_parse_phandle(cpu, "sound-dai", 0);  in odroid_audio_probe()
283 			ret = -EINVAL;  in odroid_audio_probe()
295 	if (codec_link->num_codecs > 1) {  in odroid_audio_probe()
296 		card->dai_link[0].dpcm_capture = 1;  in odroid_audio_probe()
297 		card->dai_link[1].dpcm_capture = 1;  in odroid_audio_probe()
300 	priv->sclk_i2s = of_clk_get_by_name(cpu_dai, "i2s_opclk1");  in odroid_audio_probe()
301 	if (IS_ERR(priv->sclk_i2s)) {  in odroid_audio_probe()
302 		ret = PTR_ERR(priv->sclk_i2s);  in odroid_audio_probe()
306 	priv->clk_i2s_bus = of_clk_get_by_name(cpu_dai, "iis");  in odroid_audio_probe()
307 	if (IS_ERR(priv->clk_i2s_bus)) {  in odroid_audio_probe()
308 		ret = PTR_ERR(priv->clk_i2s_bus);  in odroid_audio_probe()
314 		if (ret != -EPROBE_DEFER)  in odroid_audio_probe()
325 	clk_put(priv->clk_i2s_bus);  in odroid_audio_probe()
327 	clk_put(priv->sclk_i2s);  in odroid_audio_probe()
340 	snd_soc_of_put_dai_link_codecs(&priv->card.dai_link[1]);  in odroid_audio_remove()
341 	clk_put(priv->sclk_i2s);  in odroid_audio_remove()
342 	clk_put(priv->clk_i2s_bus);  in odroid_audio_remove()
348 	{ .compatible	= "hardkernel,odroid-xu3-audio" },
349 	{ .compatible	= "hardkernel,odroid-xu4-audio" },
350 	{ .compatible	= "samsung,odroid-xu3-audio" },
351 	{ .compatible	= "samsung,odroid-xu4-audio" },
358 		.name		= "odroid-audio",
368 MODULE_DESCRIPTION("Odroid XU3/XU4 audio support");