1 // SPDX-License-Identifier: GPL-2.0-only
3 * bytcht-da7213.c - ASoc Machine driver for Intel Baytrail and
4 * Cherrytrail-based platforms, with Dialog DA7213 codec
6 * Copyright (C) 2017 Intel Corporation
7 * Author: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
9 * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
11 * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
14 #include <linux/module.h>
15 #include <linux/acpi.h>
16 #include <linux/platform_device.h>
17 #include <linux/slab.h>
18 #include <asm/platform_sst_audio.h>
19 #include <sound/pcm.h>
20 #include <sound/pcm_params.h>
21 #include <sound/soc.h>
22 #include <sound/soc-acpi.h>
23 #include "../../codecs/da7213.h"
24 #include "../atom/sst-atom-controls.h"
26 static const struct snd_kcontrol_new controls[] = {
27 SOC_DAPM_PIN_SWITCH("Headphone Jack"),
28 SOC_DAPM_PIN_SWITCH("Headset Mic"),
29 SOC_DAPM_PIN_SWITCH("Mic"),
30 SOC_DAPM_PIN_SWITCH("Aux In"),
33 static const struct snd_soc_dapm_widget dapm_widgets[] = {
34 SND_SOC_DAPM_HP("Headphone Jack", NULL),
35 SND_SOC_DAPM_MIC("Headset Mic", NULL),
36 SND_SOC_DAPM_MIC("Mic", NULL),
37 SND_SOC_DAPM_LINE("Aux In", NULL),
40 static const struct snd_soc_dapm_route audio_map[] = {
41 {"Headphone Jack", NULL, "HPL"},
42 {"Headphone Jack", NULL, "HPR"},
44 {"AUXL", NULL, "Aux In"},
45 {"AUXR", NULL, "Aux In"},
47 /* Assume Mic1 is linked to Headset and Mic2 to on-board mic */
48 {"MIC1", NULL, "Headset Mic"},
49 {"MIC2", NULL, "Mic"},
52 {"ssp2 Tx", NULL, "codec_out0"},
53 {"ssp2 Tx", NULL, "codec_out1"},
54 {"codec_in0", NULL, "ssp2 Rx"},
55 {"codec_in1", NULL, "ssp2 Rx"},
57 {"Playback", NULL, "ssp2 Tx"},
58 {"ssp2 Rx", NULL, "Capture"},
61 static int codec_fixup(struct snd_soc_pcm_runtime *rtd,
62 struct snd_pcm_hw_params *params)
65 struct snd_interval *rate = hw_param_interval(params,
66 SNDRV_PCM_HW_PARAM_RATE);
67 struct snd_interval *channels = hw_param_interval(params,
68 SNDRV_PCM_HW_PARAM_CHANNELS);
70 /* The DSP will convert the FE rate to 48k, stereo, 24bits */
71 rate->min = rate->max = 48000;
72 channels->min = channels->max = 2;
74 /* set SSP2 to 24-bit */
75 params_set_format(params, SNDRV_PCM_FORMAT_S24_LE);
78 * Default mode for SSP configuration is TDM 4 slot, override config
79 * with explicit setting to I2S 2ch 24-bit. The word length is set with
80 * dai_set_tdm_slot() since there is no other API exposed
82 ret = snd_soc_dai_set_fmt(rtd->cpu_dai,
84 SND_SOC_DAIFMT_NB_NF |
85 SND_SOC_DAIFMT_CBS_CFS);
87 dev_err(rtd->dev, "can't set format to I2S, err %d\n", ret);
91 ret = snd_soc_dai_set_tdm_slot(rtd->cpu_dai, 0x3, 0x3, 2, 24);
93 dev_err(rtd->dev, "can't set I2S config, err %d\n", ret);
100 static int aif1_startup(struct snd_pcm_substream *substream)
102 return snd_pcm_hw_constraint_single(substream->runtime,
103 SNDRV_PCM_HW_PARAM_RATE, 48000);
106 static int aif1_hw_params(struct snd_pcm_substream *substream,
107 struct snd_pcm_hw_params *params)
109 struct snd_soc_pcm_runtime *rtd = substream->private_data;
110 struct snd_soc_dai *codec_dai = rtd->codec_dai;
113 ret = snd_soc_dai_set_sysclk(codec_dai, DA7213_CLKSRC_MCLK,
114 19200000, SND_SOC_CLOCK_IN);
116 dev_err(codec_dai->dev, "can't set codec sysclk configuration\n");
118 ret = snd_soc_dai_set_pll(codec_dai, 0,
119 DA7213_SYSCLK_PLL_SRM, 0, DA7213_PLL_FREQ_OUT_98304000);
121 dev_err(codec_dai->dev, "failed to start PLL: %d\n", ret);
128 static int aif1_hw_free(struct snd_pcm_substream *substream)
130 struct snd_soc_pcm_runtime *rtd = substream->private_data;
131 struct snd_soc_dai *codec_dai = rtd->codec_dai;
134 ret = snd_soc_dai_set_pll(codec_dai, 0,
135 DA7213_SYSCLK_MCLK, 0, 0);
137 dev_err(codec_dai->dev, "failed to stop PLL: %d\n", ret);
144 static const struct snd_soc_ops aif1_ops = {
145 .startup = aif1_startup,
148 static const struct snd_soc_ops ssp2_ops = {
149 .hw_params = aif1_hw_params,
150 .hw_free = aif1_hw_free,
154 static struct snd_soc_dai_link dailink[] = {
155 [MERR_DPCM_AUDIO] = {
156 .name = "Audio Port",
157 .stream_name = "Audio",
158 .cpu_dai_name = "media-cpu-dai",
159 .codec_dai_name = "snd-soc-dummy-dai",
160 .codec_name = "snd-soc-dummy",
161 .platform_name = "sst-mfld-platform",
168 [MERR_DPCM_DEEP_BUFFER] = {
169 .name = "Deep-Buffer Audio Port",
170 .stream_name = "Deep-Buffer Audio",
171 .cpu_dai_name = "deepbuffer-cpu-dai",
172 .codec_dai_name = "snd-soc-dummy-dai",
173 .codec_name = "snd-soc-dummy",
174 .platform_name = "sst-mfld-platform",
180 /* CODEC<->CODEC link */
183 .name = "SSP2-Codec",
185 .cpu_dai_name = "ssp2-port",
186 .platform_name = "sst-mfld-platform",
188 .codec_dai_name = "da7213-hifi",
189 .codec_name = "i2c-DLGS7213:00",
190 .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF
191 | SND_SOC_DAIFMT_CBS_CFS,
192 .be_hw_params_fixup = codec_fixup,
201 static struct snd_soc_card bytcht_da7213_card = {
202 .name = "bytcht-da7213",
203 .owner = THIS_MODULE,
205 .num_links = ARRAY_SIZE(dailink),
206 .controls = controls,
207 .num_controls = ARRAY_SIZE(controls),
208 .dapm_widgets = dapm_widgets,
209 .num_dapm_widgets = ARRAY_SIZE(dapm_widgets),
210 .dapm_routes = audio_map,
211 .num_dapm_routes = ARRAY_SIZE(audio_map),
214 static char codec_name[SND_ACPI_I2C_ID_LEN];
216 static int bytcht_da7213_probe(struct platform_device *pdev)
218 struct snd_soc_card *card;
219 struct snd_soc_acpi_mach *mach;
220 const char *platform_name;
221 struct acpi_device *adev;
226 mach = (&pdev->dev)->platform_data;
227 card = &bytcht_da7213_card;
228 card->dev = &pdev->dev;
230 /* fix index of codec dai */
231 for (i = 0; i < ARRAY_SIZE(dailink); i++) {
232 if (!strcmp(dailink[i].codec_name, "i2c-DLGS7213:00")) {
238 /* fixup codec name based on HID */
239 adev = acpi_dev_get_first_match_dev(mach->id, NULL, -1);
241 snprintf(codec_name, sizeof(codec_name),
242 "i2c-%s", acpi_dev_name(adev));
243 put_device(&adev->dev);
244 dailink[dai_index].codec_name = codec_name;
247 /* override plaform name, if required */
248 platform_name = mach->mach_params.platform;
250 ret_val = snd_soc_fixup_dai_links_platform_name(card, platform_name);
254 ret_val = devm_snd_soc_register_card(&pdev->dev, card);
257 "snd_soc_register_card failed %d\n", ret_val);
260 platform_set_drvdata(pdev, card);
264 static struct platform_driver bytcht_da7213_driver = {
266 .name = "bytcht_da7213",
268 .probe = bytcht_da7213_probe,
270 module_platform_driver(bytcht_da7213_driver);
272 MODULE_DESCRIPTION("ASoC Intel(R) Baytrail/Cherrytrail+DA7213 Machine driver");
273 MODULE_AUTHOR("Pierre-Louis Bossart");
274 MODULE_LICENSE("GPL v2");
275 MODULE_ALIAS("platform:bytcht_da7213");