1 // SPDX-License-Identifier: GPL-2.0+
2 // Copyright 2017-2020 NXP
14 #include <sound/soc-dapm.h>
15 #include "imx-pcm-rpmsg.h"
21 	bool lpa;  member
36 	struct snd_soc_pcm_runtime *rtd = list_first_entry(&card->rtd_list,  in imx_rpmsg_late_probe()
39 	struct device *dev = card->dev;  in imx_rpmsg_late_probe()
42 	if (data->lpa) {  in imx_rpmsg_late_probe()
48 		codec_np = data->dai.codecs->of_node;  in imx_rpmsg_late_probe()
55 				codec_dev = &codec_i2c->dev;  in imx_rpmsg_late_probe()
59 					codec_dev = &codec_pdev->dev;  in imx_rpmsg_late_probe()
69 				num_widgets = of_property_count_strings(data->card.dev->of_node,  in imx_rpmsg_late_probe()
70 									"ignore-suspend-widgets");  in imx_rpmsg_late_probe()
72 					of_property_read_string_index(data->card.dev->of_node,  in imx_rpmsg_late_probe()
73 								      "ignore-suspend-widgets",  in imx_rpmsg_late_probe()
79 			codec_drv = codec_dev->driver;  in imx_rpmsg_late_probe()
80 			if (codec_drv->pm) {  in imx_rpmsg_late_probe()
81 				memcpy(&lpa_pm, codec_drv->pm, sizeof(lpa_pm));  in imx_rpmsg_late_probe()
88 				codec_drv->pm = &lpa_pm;  in imx_rpmsg_late_probe()
94 	if (!data->sysclk)  in imx_rpmsg_late_probe()
97 	ret = snd_soc_dai_set_sysclk(codec_dai, 0, data->sysclk, SND_SOC_CLOCK_IN);  in imx_rpmsg_late_probe()
98 	if (ret && ret != -ENOTSUPP) {  in imx_rpmsg_late_probe()
116 	dlc = devm_kzalloc(&pdev->dev, 3 * sizeof(*dlc), GFP_KERNEL);  in imx_rpmsg_probe()
118 		return -ENOMEM;  in imx_rpmsg_probe()
120 	data = devm_kzalloc(&pdev->dev, sizeof(*data), GFP_KERNEL);  in imx_rpmsg_probe()
122 		ret = -ENOMEM;  in imx_rpmsg_probe()
126 	data->dai.cpus = &dlc[0];  in imx_rpmsg_probe()
127 	data->dai.num_cpus = 1;  in imx_rpmsg_probe()
128 	data->dai.platforms = &dlc[1];  in imx_rpmsg_probe()
129 	data->dai.num_platforms = 1;  in imx_rpmsg_probe()
130 	data->dai.codecs = &dlc[2];  in imx_rpmsg_probe()
131 	data->dai.num_codecs = 1;  in imx_rpmsg_probe()
133 	data->dai.name = "rpmsg hifi";  in imx_rpmsg_probe()
134 	data->dai.stream_name = "rpmsg hifi";  in imx_rpmsg_probe()
135 	data->dai.dai_fmt = SND_SOC_DAIFMT_I2S |  in imx_rpmsg_probe()
145 	data->dai.ignore_pmdown_time = 1;  in imx_rpmsg_probe()
147 	data->dai.cpus->dai_name = pdev->dev.platform_data;  in imx_rpmsg_probe()
148 	cpu_dai = snd_soc_find_dai(data->dai.cpus);  in imx_rpmsg_probe()
150 		ret = -EPROBE_DEFER;  in imx_rpmsg_probe()
153 	np = cpu_dai->dev->of_node;  in imx_rpmsg_probe()
155 		dev_err(&pdev->dev, "failed to parse CPU DAI device node\n");  in imx_rpmsg_probe()
156 		ret = -ENODEV;  in imx_rpmsg_probe()
160 	ret = of_reserved_mem_device_init_by_idx(&pdev->dev, np, 0);  in imx_rpmsg_probe()
162 		dev_warn(&pdev->dev, "no reserved DMA memory\n");  in imx_rpmsg_probe()
165 	ret = of_parse_phandle_with_fixed_args(np, "audio-codec", 0, 0, &args);  in imx_rpmsg_probe()
167 		*data->dai.codecs = snd_soc_dummy_dlc;  in imx_rpmsg_probe()
171 		ret = snd_soc_get_dlc(&args, data->dai.codecs);  in imx_rpmsg_probe()
173 			dev_err(&pdev->dev, "Unable to get codec_dai_name\n");  in imx_rpmsg_probe()
177 		clk = devm_get_clk_from_child(&pdev->dev, args.np, NULL);  in imx_rpmsg_probe()
179 			data->sysclk = clk_get_rate(clk);  in imx_rpmsg_probe()
182 	if (!of_property_read_string(np, "fsl,rpmsg-channel-name", &platform_name))  in imx_rpmsg_probe()
183 		data->dai.platforms->name = platform_name;  in imx_rpmsg_probe()
185 		data->dai.platforms->name = "rpmsg-audio-channel";  in imx_rpmsg_probe()
186 	data->dai.playback_only = true;  in imx_rpmsg_probe()
187 	data->dai.capture_only = true;  in imx_rpmsg_probe()
188 	data->card.num_links = 1;  in imx_rpmsg_probe()
189 	data->card.dai_link = &data->dai;  in imx_rpmsg_probe()
191 	if (of_property_read_bool(np, "fsl,rpmsg-out"))  in imx_rpmsg_probe()
192 		data->dai.capture_only = false;  in imx_rpmsg_probe()
194 	if (of_property_read_bool(np, "fsl,rpmsg-in"))  in imx_rpmsg_probe()
195 		data->dai.playback_only = false;  in imx_rpmsg_probe()
197 	if (data->dai.playback_only && data->dai.capture_only) {  in imx_rpmsg_probe()
198 		dev_err(&pdev->dev, "no enabled rpmsg DAI link\n");  in imx_rpmsg_probe()
199 		ret = -EINVAL;  in imx_rpmsg_probe()
203 	if (of_property_read_bool(np, "fsl,enable-lpa"))  in imx_rpmsg_probe()
204 		data->lpa = true;  in imx_rpmsg_probe()
206 	data->card.dev = &pdev->dev;  in imx_rpmsg_probe()
207 	data->card.owner = THIS_MODULE;  in imx_rpmsg_probe()
208 	data->card.dapm_widgets = imx_rpmsg_dapm_widgets;  in imx_rpmsg_probe()
209 	data->card.num_dapm_widgets = ARRAY_SIZE(imx_rpmsg_dapm_widgets);  in imx_rpmsg_probe()
210 	data->card.late_probe = imx_rpmsg_late_probe;  in imx_rpmsg_probe()
215 	data->card.dev->of_node = np;  in imx_rpmsg_probe()
217 	ret = snd_soc_of_parse_card_name(&data->card, "model");  in imx_rpmsg_probe()
221 	if (of_property_read_bool(np, "audio-routing")) {  in imx_rpmsg_probe()
222 		ret = snd_soc_of_parse_audio_routing(&data->card, "audio-routing");  in imx_rpmsg_probe()
224 			dev_err(&pdev->dev, "failed to parse audio-routing: %d\n", ret);  in imx_rpmsg_probe()
229 	platform_set_drvdata(pdev, &data->card);  in imx_rpmsg_probe()
230 	snd_soc_card_set_drvdata(&data->card, data);  in imx_rpmsg_probe()
231 	ret = devm_snd_soc_register_card(&pdev->dev, &data->card);  in imx_rpmsg_probe()
233 		dev_err_probe(&pdev->dev, ret, "snd_soc_register_card failed\n");  in imx_rpmsg_probe()
238 	pdev->dev.of_node = NULL;  in imx_rpmsg_probe()
244 		.name = "imx-audio-rpmsg",
253 MODULE_ALIAS("platform:imx-audio-rpmsg");