1 // SPDX-License-Identifier: GPL-2.0+
2 // Copyright 2017-2020 NXP
16 #include <sound/soc-dapm.h>
17 #include "imx-pcm-rpmsg.h"
35 	struct snd_soc_pcm_runtime *rtd = list_first_entry(&card->rtd_list,  in imx_rpmsg_late_probe()
38 	struct device *dev = card->dev;  in imx_rpmsg_late_probe()
41 	if (!data->sysclk)  in imx_rpmsg_late_probe()
44 	ret = snd_soc_dai_set_sysclk(codec_dai, 0, data->sysclk, SND_SOC_CLOCK_IN);  in imx_rpmsg_late_probe()
45 	if (ret && ret != -ENOTSUPP) {  in imx_rpmsg_late_probe()
56 	struct device *dev = pdev->dev.parent;  in imx_rpmsg_probe()
57 	/* rpmsg_pdev is the platform device for the rpmsg node that probed us */  in imx_rpmsg_probe()
59 	struct device_node *np = rpmsg_pdev->dev.of_node;  in imx_rpmsg_probe()
65 	dlc = devm_kzalloc(&pdev->dev, 3 * sizeof(*dlc), GFP_KERNEL);  in imx_rpmsg_probe()
67 		return -ENOMEM;  in imx_rpmsg_probe()
69 	data = devm_kzalloc(&pdev->dev, sizeof(*data), GFP_KERNEL);  in imx_rpmsg_probe()
71 		ret = -ENOMEM;  in imx_rpmsg_probe()
75 	ret = of_reserved_mem_device_init_by_idx(&pdev->dev, np, 0);  in imx_rpmsg_probe()
77 		dev_warn(&pdev->dev, "no reserved DMA memory\n");  in imx_rpmsg_probe()
79 	data->dai.cpus = &dlc[0];  in imx_rpmsg_probe()
80 	data->dai.num_cpus = 1;  in imx_rpmsg_probe()
81 	data->dai.platforms = &dlc[1];  in imx_rpmsg_probe()
82 	data->dai.num_platforms = 1;  in imx_rpmsg_probe()
83 	data->dai.codecs = &dlc[2];  in imx_rpmsg_probe()
84 	data->dai.num_codecs = 1;  in imx_rpmsg_probe()
86 	data->dai.name = "rpmsg hifi";  in imx_rpmsg_probe()
87 	data->dai.stream_name = "rpmsg hifi";  in imx_rpmsg_probe()
88 	data->dai.dai_fmt = SND_SOC_DAIFMT_I2S |  in imx_rpmsg_probe()
93 	 * i.MX rpmsg sound cards work on codec slave mode. MCLK will be  in imx_rpmsg_probe()
98 	data->dai.ignore_pmdown_time = 1;  in imx_rpmsg_probe()
101 	ret = of_parse_phandle_with_fixed_args(np, "audio-codec", 0, 0, &args);  in imx_rpmsg_probe()
103 		*data->dai.codecs = asoc_dummy_dlc;  in imx_rpmsg_probe()
107 		ret = snd_soc_get_dlc(&args, data->dai.codecs);  in imx_rpmsg_probe()
109 			dev_err(&pdev->dev, "Unable to get codec_dai_name\n");  in imx_rpmsg_probe()
113 		clk = devm_get_clk_from_child(&pdev->dev, args.np, NULL);  in imx_rpmsg_probe()
115 			data->sysclk = clk_get_rate(clk);  in imx_rpmsg_probe()
118 	data->dai.cpus->dai_name = dev_name(&rpmsg_pdev->dev);  in imx_rpmsg_probe()
119 	if (!of_property_read_string(np, "fsl,rpmsg-channel-name", &platform_name))  in imx_rpmsg_probe()
120 		data->dai.platforms->name = platform_name;  in imx_rpmsg_probe()
122 		data->dai.platforms->name = "rpmsg-audio-channel";  in imx_rpmsg_probe()
123 	data->dai.playback_only = true;  in imx_rpmsg_probe()
124 	data->dai.capture_only = true;  in imx_rpmsg_probe()
125 	data->card.num_links = 1;  in imx_rpmsg_probe()
126 	data->card.dai_link = &data->dai;  in imx_rpmsg_probe()
128 	if (of_property_read_bool(np, "fsl,rpmsg-out"))  in imx_rpmsg_probe()
129 		data->dai.capture_only = false;  in imx_rpmsg_probe()
131 	if (of_property_read_bool(np, "fsl,rpmsg-in"))  in imx_rpmsg_probe()
132 		data->dai.playback_only = false;  in imx_rpmsg_probe()
134 	if (data->dai.playback_only && data->dai.capture_only) {  in imx_rpmsg_probe()
135 		dev_err(&pdev->dev, "no enabled rpmsg DAI link\n");  in imx_rpmsg_probe()
136 		ret = -EINVAL;  in imx_rpmsg_probe()
140 	data->card.dev = &pdev->dev;  in imx_rpmsg_probe()
141 	data->card.owner = THIS_MODULE;  in imx_rpmsg_probe()
142 	data->card.dapm_widgets = imx_rpmsg_dapm_widgets;  in imx_rpmsg_probe()
143 	data->card.num_dapm_widgets = ARRAY_SIZE(imx_rpmsg_dapm_widgets);  in imx_rpmsg_probe()
144 	data->card.late_probe = imx_rpmsg_late_probe;  in imx_rpmsg_probe()
149 	data->card.dev->of_node = np;  in imx_rpmsg_probe()
151 	ret = snd_soc_of_parse_card_name(&data->card, "model");  in imx_rpmsg_probe()
155 	if (of_property_read_bool(np, "audio-routing")) {  in imx_rpmsg_probe()
156 		ret = snd_soc_of_parse_audio_routing(&data->card, "audio-routing");  in imx_rpmsg_probe()
158 			dev_err(&pdev->dev, "failed to parse audio-routing: %d\n", ret);  in imx_rpmsg_probe()
163 	platform_set_drvdata(pdev, &data->card);  in imx_rpmsg_probe()
164 	snd_soc_card_set_drvdata(&data->card, data);  in imx_rpmsg_probe()
165 	ret = devm_snd_soc_register_card(&pdev->dev, &data->card);  in imx_rpmsg_probe()
167 		dev_err_probe(&pdev->dev, ret, "snd_soc_register_card failed\n");  in imx_rpmsg_probe()
172 	pdev->dev.of_node = NULL;  in imx_rpmsg_probe()
178 		.name = "imx-audio-rpmsg",
185 MODULE_DESCRIPTION("Freescale SoC Audio RPMSG Machine Driver");
187 MODULE_ALIAS("platform:imx-audio-rpmsg");