1b86ef536SViorel Suman // SPDX-License-Identifier: GPL-2.0
2b86ef536SViorel Suman /*
3b86ef536SViorel Suman * Copyright 2017 NXP
4b86ef536SViorel Suman *
5b86ef536SViorel Suman * The code contained herein is licensed under the GNU General Public
6b86ef536SViorel Suman * License. You may obtain a copy of the GNU General Public License
7b86ef536SViorel Suman * Version 2 or later at the following locations:
8b86ef536SViorel Suman *
91ce8f643SAlexander A. Klimov * https://www.opensource.org/licenses/gpl-license.html
101ce8f643SAlexander A. Klimov * https://www.gnu.org/copyleft/gpl.html
11b86ef536SViorel Suman */
12b86ef536SViorel Suman
13b86ef536SViorel Suman #include <linux/module.h>
14b86ef536SViorel Suman #include <linux/of_platform.h>
15b86ef536SViorel Suman #include <linux/clk.h>
16b86ef536SViorel Suman #include <sound/soc.h>
17b86ef536SViorel Suman #include <sound/soc-dapm.h>
18b86ef536SViorel Suman #include "fsl_sai.h"
19b86ef536SViorel Suman #include "fsl_audmix.h"
20b86ef536SViorel Suman
21b86ef536SViorel Suman struct imx_audmix {
22b86ef536SViorel Suman struct platform_device *pdev;
23b86ef536SViorel Suman struct snd_soc_card card;
24b86ef536SViorel Suman struct platform_device *audmix_pdev;
25b86ef536SViorel Suman struct platform_device *out_pdev;
26b86ef536SViorel Suman struct clk *cpu_mclk;
27b86ef536SViorel Suman int num_dai;
28b86ef536SViorel Suman struct snd_soc_dai_link *dai;
29b86ef536SViorel Suman int num_dai_conf;
30b86ef536SViorel Suman struct snd_soc_codec_conf *dai_conf;
31b86ef536SViorel Suman int num_dapm_routes;
32b86ef536SViorel Suman struct snd_soc_dapm_route *dapm_routes;
33b86ef536SViorel Suman };
34b86ef536SViorel Suman
35b86ef536SViorel Suman static const u32 imx_audmix_rates[] = {
36b86ef536SViorel Suman 8000, 12000, 16000, 24000, 32000, 48000, 64000, 96000,
37b86ef536SViorel Suman };
38b86ef536SViorel Suman
39b86ef536SViorel Suman static const struct snd_pcm_hw_constraint_list imx_audmix_rate_constraints = {
40b86ef536SViorel Suman .count = ARRAY_SIZE(imx_audmix_rates),
41b86ef536SViorel Suman .list = imx_audmix_rates,
42b86ef536SViorel Suman };
43b86ef536SViorel Suman
imx_audmix_fe_startup(struct snd_pcm_substream * substream)44b86ef536SViorel Suman static int imx_audmix_fe_startup(struct snd_pcm_substream *substream)
45b86ef536SViorel Suman {
4614ec63f6SKuninori Morimoto struct snd_soc_pcm_runtime *rtd = snd_soc_substream_to_rtd(substream);
47b86ef536SViorel Suman struct imx_audmix *priv = snd_soc_card_get_drvdata(rtd->card);
48b86ef536SViorel Suman struct snd_pcm_runtime *runtime = substream->runtime;
49b86ef536SViorel Suman struct device *dev = rtd->card->dev;
50b86ef536SViorel Suman unsigned long clk_rate = clk_get_rate(priv->cpu_mclk);
51b86ef536SViorel Suman int ret;
52b86ef536SViorel Suman
53b86ef536SViorel Suman if (clk_rate % 24576000 == 0) {
54b86ef536SViorel Suman ret = snd_pcm_hw_constraint_list(runtime, 0,
55b86ef536SViorel Suman SNDRV_PCM_HW_PARAM_RATE,
56b86ef536SViorel Suman &imx_audmix_rate_constraints);
57b86ef536SViorel Suman if (ret < 0)
58b86ef536SViorel Suman return ret;
59b86ef536SViorel Suman } else {
60b86ef536SViorel Suman dev_warn(dev, "mclk may be not supported %lu\n", clk_rate);
61b86ef536SViorel Suman }
62b86ef536SViorel Suman
63b86ef536SViorel Suman ret = snd_pcm_hw_constraint_minmax(runtime, SNDRV_PCM_HW_PARAM_CHANNELS,
64b86ef536SViorel Suman 1, 8);
65b86ef536SViorel Suman if (ret < 0)
66b86ef536SViorel Suman return ret;
67b86ef536SViorel Suman
68b86ef536SViorel Suman return snd_pcm_hw_constraint_mask64(runtime, SNDRV_PCM_HW_PARAM_FORMAT,
69b86ef536SViorel Suman FSL_AUDMIX_FORMATS);
70b86ef536SViorel Suman }
71b86ef536SViorel Suman
imx_audmix_fe_hw_params(struct snd_pcm_substream * substream,struct snd_pcm_hw_params * params)72b86ef536SViorel Suman static int imx_audmix_fe_hw_params(struct snd_pcm_substream *substream,
73b86ef536SViorel Suman struct snd_pcm_hw_params *params)
74b86ef536SViorel Suman {
7514ec63f6SKuninori Morimoto struct snd_soc_pcm_runtime *rtd = snd_soc_substream_to_rtd(substream);
76b86ef536SViorel Suman struct device *dev = rtd->card->dev;
77b86ef536SViorel Suman bool tx = substream->stream == SNDRV_PCM_STREAM_PLAYBACK;
78b86ef536SViorel Suman unsigned int fmt = SND_SOC_DAIFMT_DSP_A | SND_SOC_DAIFMT_NB_NF;
79b86ef536SViorel Suman u32 channels = params_channels(params);
80b86ef536SViorel Suman int ret, dir;
81b86ef536SViorel Suman
82bf101022SMark Brown /* For playback the AUDMIX is consumer, and for record is provider */
833b14c15aSCharles Keepax fmt |= tx ? SND_SOC_DAIFMT_BP_FP : SND_SOC_DAIFMT_BC_FC;
84b86ef536SViorel Suman dir = tx ? SND_SOC_CLOCK_OUT : SND_SOC_CLOCK_IN;
85b86ef536SViorel Suman
86b86ef536SViorel Suman /* set DAI configuration */
8714ec63f6SKuninori Morimoto ret = snd_soc_dai_set_fmt(snd_soc_rtd_to_cpu(rtd, 0), fmt);
88b86ef536SViorel Suman if (ret) {
89b86ef536SViorel Suman dev_err(dev, "failed to set cpu dai fmt: %d\n", ret);
90b86ef536SViorel Suman return ret;
91b86ef536SViorel Suman }
92b86ef536SViorel Suman
9314ec63f6SKuninori Morimoto ret = snd_soc_dai_set_sysclk(snd_soc_rtd_to_cpu(rtd, 0), FSL_SAI_CLK_MAST1, 0, dir);
94b86ef536SViorel Suman if (ret) {
95b86ef536SViorel Suman dev_err(dev, "failed to set cpu sysclk: %d\n", ret);
96b86ef536SViorel Suman return ret;
97b86ef536SViorel Suman }
98b86ef536SViorel Suman
99b86ef536SViorel Suman /*
100b86ef536SViorel Suman * Per datasheet, AUDMIX expects 8 slots and 32 bits
101b86ef536SViorel Suman * for every slot in TDM mode.
102b86ef536SViorel Suman */
10314ec63f6SKuninori Morimoto ret = snd_soc_dai_set_tdm_slot(snd_soc_rtd_to_cpu(rtd, 0), BIT(channels) - 1,
104b86ef536SViorel Suman BIT(channels) - 1, 8, 32);
105b86ef536SViorel Suman if (ret)
106b86ef536SViorel Suman dev_err(dev, "failed to set cpu dai tdm slot: %d\n", ret);
107b86ef536SViorel Suman
108b86ef536SViorel Suman return ret;
109b86ef536SViorel Suman }
110b86ef536SViorel Suman
imx_audmix_be_hw_params(struct snd_pcm_substream * substream,struct snd_pcm_hw_params * params)111b86ef536SViorel Suman static int imx_audmix_be_hw_params(struct snd_pcm_substream *substream,
112b86ef536SViorel Suman struct snd_pcm_hw_params *params)
113b86ef536SViorel Suman {
11414ec63f6SKuninori Morimoto struct snd_soc_pcm_runtime *rtd = snd_soc_substream_to_rtd(substream);
115b86ef536SViorel Suman struct device *dev = rtd->card->dev;
116b86ef536SViorel Suman bool tx = substream->stream == SNDRV_PCM_STREAM_PLAYBACK;
117b86ef536SViorel Suman unsigned int fmt = SND_SOC_DAIFMT_DSP_A | SND_SOC_DAIFMT_NB_NF;
118b86ef536SViorel Suman int ret;
119b86ef536SViorel Suman
120b86ef536SViorel Suman if (!tx)
121b86ef536SViorel Suman return 0;
122b86ef536SViorel Suman
123bf101022SMark Brown /* For playback the AUDMIX is consumer */
1243b14c15aSCharles Keepax fmt |= SND_SOC_DAIFMT_BC_FC;
125b86ef536SViorel Suman
126b86ef536SViorel Suman /* set AUDMIX DAI configuration */
12714ec63f6SKuninori Morimoto ret = snd_soc_dai_set_fmt(snd_soc_rtd_to_cpu(rtd, 0), fmt);
128b86ef536SViorel Suman if (ret)
129b86ef536SViorel Suman dev_err(dev, "failed to set AUDMIX DAI fmt: %d\n", ret);
130b86ef536SViorel Suman
131b86ef536SViorel Suman return ret;
132b86ef536SViorel Suman }
133b86ef536SViorel Suman
134815b55e1SRikard Falkeborn static const struct snd_soc_ops imx_audmix_fe_ops = {
135b86ef536SViorel Suman .startup = imx_audmix_fe_startup,
136b86ef536SViorel Suman .hw_params = imx_audmix_fe_hw_params,
137b86ef536SViorel Suman };
138b86ef536SViorel Suman
139815b55e1SRikard Falkeborn static const struct snd_soc_ops imx_audmix_be_ops = {
140b86ef536SViorel Suman .hw_params = imx_audmix_be_hw_params,
141b86ef536SViorel Suman };
142b86ef536SViorel Suman
143*05d996e1SShengjiu Wang static const char *name[][3] = {
144*05d996e1SShengjiu Wang {"HiFi-AUDMIX-FE-0", "HiFi-AUDMIX-FE-1", "HiFi-AUDMIX-FE-2"},
145*05d996e1SShengjiu Wang {"sai-tx", "sai-tx", "sai-rx"},
146*05d996e1SShengjiu Wang {"AUDMIX-Playback-0", "AUDMIX-Playback-1", "CPU-Capture"},
147*05d996e1SShengjiu Wang {"CPU-Playback", "CPU-Playback", "AUDMIX-Capture-0"},
148*05d996e1SShengjiu Wang };
149*05d996e1SShengjiu Wang
imx_audmix_probe(struct platform_device * pdev)150b86ef536SViorel Suman static int imx_audmix_probe(struct platform_device *pdev)
151b86ef536SViorel Suman {
152b86ef536SViorel Suman struct device_node *np = pdev->dev.of_node;
153b86ef536SViorel Suman struct device_node *audmix_np = NULL, *out_cpu_np = NULL;
154b86ef536SViorel Suman struct platform_device *audmix_pdev = NULL;
155b86ef536SViorel Suman struct platform_device *cpu_pdev;
156b86ef536SViorel Suman struct of_phandle_args args;
157b86ef536SViorel Suman struct imx_audmix *priv;
158b86ef536SViorel Suman int i, num_dai, ret;
159b86ef536SViorel Suman const char *fe_name_pref = "HiFi-AUDMIX-FE-";
160*05d996e1SShengjiu Wang char *be_name, *dai_name;
161b86ef536SViorel Suman
162b86ef536SViorel Suman if (pdev->dev.parent) {
163b86ef536SViorel Suman audmix_np = pdev->dev.parent->of_node;
164b86ef536SViorel Suman } else {
165b86ef536SViorel Suman dev_err(&pdev->dev, "Missing parent device.\n");
166b86ef536SViorel Suman return -EINVAL;
167b86ef536SViorel Suman }
168b86ef536SViorel Suman
169b86ef536SViorel Suman if (!audmix_np) {
170de70b2a5SColin Ian King dev_err(&pdev->dev, "Missing DT node for parent device.\n");
171b86ef536SViorel Suman return -EINVAL;
172b86ef536SViorel Suman }
173b86ef536SViorel Suman
174b86ef536SViorel Suman audmix_pdev = of_find_device_by_node(audmix_np);
175b86ef536SViorel Suman if (!audmix_pdev) {
176b86ef536SViorel Suman dev_err(&pdev->dev, "Missing AUDMIX platform device for %s\n",
177b86ef536SViorel Suman np->full_name);
178b86ef536SViorel Suman return -EINVAL;
179b86ef536SViorel Suman }
1808bb678d7SViorel Suman put_device(&audmix_pdev->dev);
181b86ef536SViorel Suman
182b86ef536SViorel Suman num_dai = of_count_phandle_with_args(audmix_np, "dais", NULL);
183b86ef536SViorel Suman if (num_dai != FSL_AUDMIX_MAX_DAIS) {
184b86ef536SViorel Suman dev_err(&pdev->dev, "Need 2 dais to be provided for %s\n",
185b86ef536SViorel Suman audmix_np->full_name);
186b86ef536SViorel Suman return -EINVAL;
187b86ef536SViorel Suman }
188b86ef536SViorel Suman
189b86ef536SViorel Suman priv = devm_kzalloc(&pdev->dev, sizeof(*priv), GFP_KERNEL);
190b86ef536SViorel Suman if (!priv)
191b86ef536SViorel Suman return -ENOMEM;
192b86ef536SViorel Suman
193*05d996e1SShengjiu Wang num_dai += 1;
194b86ef536SViorel Suman priv->num_dai = 2 * num_dai;
195f95cc5c1SXu Wang priv->dai = devm_kcalloc(&pdev->dev, priv->num_dai,
196b86ef536SViorel Suman sizeof(struct snd_soc_dai_link), GFP_KERNEL);
197b86ef536SViorel Suman if (!priv->dai)
198b86ef536SViorel Suman return -ENOMEM;
199b86ef536SViorel Suman
200b86ef536SViorel Suman priv->num_dai_conf = num_dai;
201f95cc5c1SXu Wang priv->dai_conf = devm_kcalloc(&pdev->dev, priv->num_dai_conf,
202b86ef536SViorel Suman sizeof(struct snd_soc_codec_conf),
203b86ef536SViorel Suman GFP_KERNEL);
204b86ef536SViorel Suman if (!priv->dai_conf)
205b86ef536SViorel Suman return -ENOMEM;
206b86ef536SViorel Suman
207*05d996e1SShengjiu Wang priv->num_dapm_routes = num_dai;
208f95cc5c1SXu Wang priv->dapm_routes = devm_kcalloc(&pdev->dev, priv->num_dapm_routes,
209b86ef536SViorel Suman sizeof(struct snd_soc_dapm_route),
210b86ef536SViorel Suman GFP_KERNEL);
211b86ef536SViorel Suman if (!priv->dapm_routes)
212b86ef536SViorel Suman return -ENOMEM;
213b86ef536SViorel Suman
214b86ef536SViorel Suman for (i = 0; i < num_dai; i++) {
21579782e28SKuninori Morimoto struct snd_soc_dai_link_component *dlc;
21679782e28SKuninori Morimoto
21787e39e9bSKuninori Morimoto /* for CPU x 2 */
21887e39e9bSKuninori Morimoto dlc = devm_kcalloc(&pdev->dev, 2, sizeof(*dlc), GFP_KERNEL);
219723ca2f8SZhen Lei if (!dlc)
22079782e28SKuninori Morimoto return -ENOMEM;
22179782e28SKuninori Morimoto
222*05d996e1SShengjiu Wang if (i == num_dai - 1)
223*05d996e1SShengjiu Wang ret = of_parse_phandle_with_args(audmix_np, "dais", NULL, 0,
224*05d996e1SShengjiu Wang &args);
225*05d996e1SShengjiu Wang else
226b86ef536SViorel Suman ret = of_parse_phandle_with_args(audmix_np, "dais", NULL, i,
227b86ef536SViorel Suman &args);
228b86ef536SViorel Suman if (ret < 0) {
229b86ef536SViorel Suman dev_err(&pdev->dev, "of_parse_phandle_with_args failed\n");
230b86ef536SViorel Suman return ret;
231b86ef536SViorel Suman }
232b86ef536SViorel Suman
233b86ef536SViorel Suman cpu_pdev = of_find_device_by_node(args.np);
234b86ef536SViorel Suman if (!cpu_pdev) {
235b86ef536SViorel Suman dev_err(&pdev->dev, "failed to find SAI platform device\n");
236b86ef536SViorel Suman return -EINVAL;
237b86ef536SViorel Suman }
2388bb678d7SViorel Suman put_device(&cpu_pdev->dev);
239b86ef536SViorel Suman
240b86ef536SViorel Suman dai_name = devm_kasprintf(&pdev->dev, GFP_KERNEL, "%s%s",
241*05d996e1SShengjiu Wang fe_name_pref, args.np->full_name);
2422f76e1d6SClaudiu Beznea if (!dai_name)
2432f76e1d6SClaudiu Beznea return -ENOMEM;
244b86ef536SViorel Suman
245b86ef536SViorel Suman dev_info(pdev->dev.parent, "DAI FE name:%s\n", dai_name);
246b86ef536SViorel Suman
247*05d996e1SShengjiu Wang if (i == num_dai - 1)
248b86ef536SViorel Suman out_cpu_np = args.np;
249b86ef536SViorel Suman
2503ce08f85SKuninori Morimoto /*
2513ce08f85SKuninori Morimoto * CPU == Platform
2523ce08f85SKuninori Morimoto * platform is using soc-generic-dmaengine-pcm
2533ce08f85SKuninori Morimoto */
2543ce08f85SKuninori Morimoto priv->dai[i].cpus =
2553ce08f85SKuninori Morimoto priv->dai[i].platforms = &dlc[0];
25614ec63f6SKuninori Morimoto priv->dai[i].codecs = &snd_soc_dummy_dlc;
25779782e28SKuninori Morimoto
25879782e28SKuninori Morimoto priv->dai[i].num_cpus = 1;
25979782e28SKuninori Morimoto priv->dai[i].num_codecs = 1;
26009cda705SShengjiu Wang priv->dai[i].num_platforms = 1;
261*05d996e1SShengjiu Wang priv->dai[i].name = name[0][i];
262b86ef536SViorel Suman priv->dai[i].stream_name = "HiFi-AUDMIX-FE";
26379782e28SKuninori Morimoto priv->dai[i].cpus->of_node = args.np;
264*05d996e1SShengjiu Wang priv->dai[i].cpus->dai_name = name[1][i];
265*05d996e1SShengjiu Wang
266b86ef536SViorel Suman priv->dai[i].dynamic = 1;
267b86ef536SViorel Suman priv->dai[i].dpcm_playback = 1;
268*05d996e1SShengjiu Wang if (i == num_dai - 1) {
269*05d996e1SShengjiu Wang priv->dai[i].dpcm_capture = 1;
270*05d996e1SShengjiu Wang priv->dai[i].dpcm_playback = 0;
271*05d996e1SShengjiu Wang }
272b86ef536SViorel Suman priv->dai[i].ignore_pmdown_time = 1;
273b86ef536SViorel Suman priv->dai[i].ops = &imx_audmix_fe_ops;
274b86ef536SViorel Suman
275b86ef536SViorel Suman /* Add AUDMIX Backend */
276b86ef536SViorel Suman be_name = devm_kasprintf(&pdev->dev, GFP_KERNEL,
277b86ef536SViorel Suman "audmix-%d", i);
27887e39e9bSKuninori Morimoto priv->dai[num_dai + i].cpus = &dlc[1];
27914ec63f6SKuninori Morimoto priv->dai[num_dai + i].codecs = &snd_soc_dummy_dlc;
28079782e28SKuninori Morimoto
28179782e28SKuninori Morimoto priv->dai[num_dai + i].num_cpus = 1;
28279782e28SKuninori Morimoto priv->dai[num_dai + i].num_codecs = 1;
28379782e28SKuninori Morimoto
284b86ef536SViorel Suman priv->dai[num_dai + i].name = be_name;
28579782e28SKuninori Morimoto priv->dai[num_dai + i].cpus->of_node = audmix_np;
28679782e28SKuninori Morimoto priv->dai[num_dai + i].cpus->dai_name = be_name;
287b86ef536SViorel Suman priv->dai[num_dai + i].no_pcm = 1;
288b86ef536SViorel Suman priv->dai[num_dai + i].dpcm_playback = 1;
289*05d996e1SShengjiu Wang if (i == num_dai - 1) {
290b86ef536SViorel Suman priv->dai[num_dai + i].dpcm_capture = 1;
291*05d996e1SShengjiu Wang priv->dai[num_dai + i].dpcm_playback = 0;
292*05d996e1SShengjiu Wang }
293b86ef536SViorel Suman priv->dai[num_dai + i].ignore_pmdown_time = 1;
294b86ef536SViorel Suman priv->dai[num_dai + i].ops = &imx_audmix_be_ops;
295b86ef536SViorel Suman
296eea23952SKuninori Morimoto priv->dai_conf[i].dlc.of_node = args.np;
297b86ef536SViorel Suman priv->dai_conf[i].name_prefix = dai_name;
298b86ef536SViorel Suman
299*05d996e1SShengjiu Wang if (i == num_dai - 1) {
300*05d996e1SShengjiu Wang priv->dapm_routes[i].sink =
301*05d996e1SShengjiu Wang devm_kasprintf(&pdev->dev, GFP_KERNEL, "%s %s",
302*05d996e1SShengjiu Wang dai_name, name[2][i]);
303*05d996e1SShengjiu Wang if (!priv->dapm_routes[i].sink)
304*05d996e1SShengjiu Wang return -ENOMEM;
305*05d996e1SShengjiu Wang
306*05d996e1SShengjiu Wang priv->dapm_routes[i].source = name[3][i];
307*05d996e1SShengjiu Wang } else {
308b86ef536SViorel Suman priv->dapm_routes[i].source =
309b86ef536SViorel Suman devm_kasprintf(&pdev->dev, GFP_KERNEL, "%s %s",
310*05d996e1SShengjiu Wang dai_name, name[3][i]);
3112f76e1d6SClaudiu Beznea if (!priv->dapm_routes[i].source)
3122f76e1d6SClaudiu Beznea return -ENOMEM;
3132f76e1d6SClaudiu Beznea
314*05d996e1SShengjiu Wang priv->dapm_routes[i].sink = name[2][i];
315*05d996e1SShengjiu Wang }
316b86ef536SViorel Suman }
317b86ef536SViorel Suman
318b86ef536SViorel Suman cpu_pdev = of_find_device_by_node(out_cpu_np);
319b86ef536SViorel Suman if (!cpu_pdev) {
320b86ef536SViorel Suman dev_err(&pdev->dev, "failed to find SAI platform device\n");
321b86ef536SViorel Suman return -EINVAL;
322b86ef536SViorel Suman }
3238bb678d7SViorel Suman put_device(&cpu_pdev->dev);
3248bb678d7SViorel Suman
325b86ef536SViorel Suman priv->cpu_mclk = devm_clk_get(&cpu_pdev->dev, "mclk1");
326b86ef536SViorel Suman if (IS_ERR(priv->cpu_mclk)) {
327b86ef536SViorel Suman ret = PTR_ERR(priv->cpu_mclk);
328b86ef536SViorel Suman dev_err(&cpu_pdev->dev, "failed to get DAI mclk1: %d\n", ret);
329b19a5733SShengjiu Wang return ret;
330b86ef536SViorel Suman }
331b86ef536SViorel Suman
332b86ef536SViorel Suman priv->audmix_pdev = audmix_pdev;
333b86ef536SViorel Suman priv->out_pdev = cpu_pdev;
334b86ef536SViorel Suman
335b86ef536SViorel Suman priv->card.dai_link = priv->dai;
336b86ef536SViorel Suman priv->card.num_links = priv->num_dai;
337b86ef536SViorel Suman priv->card.codec_conf = priv->dai_conf;
338b86ef536SViorel Suman priv->card.num_configs = priv->num_dai_conf;
339b86ef536SViorel Suman priv->card.dapm_routes = priv->dapm_routes;
340b86ef536SViorel Suman priv->card.num_dapm_routes = priv->num_dapm_routes;
3419573820eSShengjiu Wang priv->card.dev = &pdev->dev;
342b86ef536SViorel Suman priv->card.owner = THIS_MODULE;
343b86ef536SViorel Suman priv->card.name = "imx-audmix";
344b86ef536SViorel Suman
345b86ef536SViorel Suman platform_set_drvdata(pdev, &priv->card);
346b86ef536SViorel Suman snd_soc_card_set_drvdata(&priv->card, priv);
347b86ef536SViorel Suman
3489573820eSShengjiu Wang ret = devm_snd_soc_register_card(&pdev->dev, &priv->card);
349b86ef536SViorel Suman if (ret) {
350b86ef536SViorel Suman dev_err(&pdev->dev, "snd_soc_register_card failed\n");
351b86ef536SViorel Suman return ret;
352b86ef536SViorel Suman }
353b86ef536SViorel Suman
354b86ef536SViorel Suman return ret;
355b86ef536SViorel Suman }
356b86ef536SViorel Suman
357b86ef536SViorel Suman static struct platform_driver imx_audmix_driver = {
358b86ef536SViorel Suman .probe = imx_audmix_probe,
359b86ef536SViorel Suman .driver = {
360b86ef536SViorel Suman .name = "imx-audmix",
361b86ef536SViorel Suman .pm = &snd_soc_pm_ops,
362b86ef536SViorel Suman },
363b86ef536SViorel Suman };
364b86ef536SViorel Suman module_platform_driver(imx_audmix_driver);
365b86ef536SViorel Suman
366b86ef536SViorel Suman MODULE_DESCRIPTION("NXP AUDMIX ASoC machine driver");
367b86ef536SViorel Suman MODULE_AUTHOR("Viorel Suman <viorel.suman@nxp.com>");
368b86ef536SViorel Suman MODULE_ALIAS("platform:imx-audmix");
369b86ef536SViorel Suman MODULE_LICENSE("GPL v2");
370