ASoC: rockchip: constify snd_soc_ops structures
[sfrench/cifs-2.6.git] / sound / soc / rockchip / rk3399_gru_sound.c
index 3475c61a5fa0bf76f989bd21bf43815b75aef627..0513fe48035309a90e806eec2cebbb9765338132 100644 (file)
@@ -38,7 +38,7 @@
 
 #define SOUND_FS       256
 
-static unsigned int rt5514_dmic_delay;
+static unsigned int dmic_wakeup_delay;
 
 static struct snd_soc_jack rockchip_sound_jack;
 
@@ -126,7 +126,7 @@ static int rockchip_sound_rt5514_hw_params(struct snd_pcm_substream *substream,
        }
 
        /* Wait for DMIC stable */
-       msleep(rt5514_dmic_delay);
+       msleep(dmic_wakeup_delay);
 
        return 0;
 }
@@ -228,6 +228,67 @@ static int rockchip_sound_da7219_init(struct snd_soc_pcm_runtime *rtd)
        return 0;
 }
 
+static int rockchip_sound_cdndp_hw_params(struct snd_pcm_substream *substream,
+                                         struct snd_pcm_hw_params *params)
+{
+       struct snd_soc_pcm_runtime *rtd = substream->private_data;
+       struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
+       struct snd_soc_dai *codec_dai = rtd->codec_dai;
+       int mclk, ret;
+
+       /* in bypass mode, the mclk has to be one of the frequencies below */
+       switch (params_rate(params)) {
+       case 8000:
+       case 16000:
+       case 24000:
+       case 32000:
+       case 48000:
+       case 64000:
+       case 96000:
+               mclk = 12288000;
+               break;
+       case 11025:
+       case 22050:
+       case 44100:
+       case 88200:
+               mclk = 11289600;
+               break;
+       default:
+               return -EINVAL;
+       }
+
+       ret = snd_soc_dai_set_sysclk(cpu_dai, 0, mclk,
+                                    SND_SOC_CLOCK_OUT);
+       if (ret < 0) {
+               dev_err(codec_dai->dev, "Can't set cpu clock out %d\n", ret);
+               return ret;
+       }
+
+       return 0;
+}
+
+static int rockchip_sound_dmic_hw_params(struct snd_pcm_substream *substream,
+                            struct snd_pcm_hw_params *params)
+{
+       struct snd_soc_pcm_runtime *rtd = substream->private_data;
+       unsigned int mclk;
+       int ret;
+
+       mclk = params_rate(params) * SOUND_FS;
+
+       ret = snd_soc_dai_set_sysclk(rtd->cpu_dai, 0, mclk, 0);
+       if (ret) {
+               dev_err(rtd->card->dev, "%s() error setting sysclk to %u: %d\n",
+                               __func__, mclk, ret);
+               return ret;
+       }
+
+       /* Wait for DMIC stable */
+       msleep(dmic_wakeup_delay);
+
+       return 0;
+}
+
 static const struct snd_soc_ops rockchip_sound_max98357a_ops = {
        .hw_params = rockchip_sound_max98357a_hw_params,
 };
@@ -240,16 +301,70 @@ static const struct snd_soc_ops rockchip_sound_da7219_ops = {
        .hw_params = rockchip_sound_da7219_hw_params,
 };
 
+static const struct snd_soc_ops rockchip_sound_cdndp_ops = {
+       .hw_params = rockchip_sound_cdndp_hw_params,
+};
+
+static const struct snd_soc_ops rockchip_sound_dmic_ops = {
+       .hw_params = rockchip_sound_dmic_hw_params,
+};
+
+static struct snd_soc_card rockchip_sound_card = {
+       .name = "rk3399-gru-sound",
+       .owner = THIS_MODULE,
+       .dapm_widgets = rockchip_dapm_widgets,
+       .num_dapm_widgets = ARRAY_SIZE(rockchip_dapm_widgets),
+       .dapm_routes = rockchip_dapm_routes,
+       .num_dapm_routes = ARRAY_SIZE(rockchip_dapm_routes),
+       .controls = rockchip_controls,
+       .num_controls = ARRAY_SIZE(rockchip_controls),
+};
+
 enum {
+       DAILINK_CDNDP,
+       DAILINK_DA7219,
+       DAILINK_DMIC,
        DAILINK_MAX98357A,
        DAILINK_RT5514,
-       DAILINK_DA7219,
        DAILINK_RT5514_DSP,
 };
 
-#define DAILINK_ENTITIES       (DAILINK_DA7219 + 1)
+static const char * const dailink_compat[] = {
+       [DAILINK_CDNDP] = "rockchip,rk3399-cdn-dp",
+       [DAILINK_DA7219] = "dlg,da7219",
+       [DAILINK_DMIC] = "dmic-codec",
+       [DAILINK_MAX98357A] = "maxim,max98357a",
+       [DAILINK_RT5514] = "realtek,rt5514-i2c",
+       [DAILINK_RT5514_DSP] = "realtek,rt5514-spi",
+};
 
-static struct snd_soc_dai_link rockchip_dailinks[] = {
+static const struct snd_soc_dai_link rockchip_dais[] = {
+       [DAILINK_CDNDP] = {
+               .name = "DP",
+               .stream_name = "DP PCM",
+               .codec_dai_name = "i2s-hifi",
+               .ops = &rockchip_sound_cdndp_ops,
+               .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
+                       SND_SOC_DAIFMT_CBS_CFS,
+       },
+       [DAILINK_DA7219] = {
+               .name = "DA7219",
+               .stream_name = "DA7219 PCM",
+               .codec_dai_name = "da7219-hifi",
+               .init = rockchip_sound_da7219_init,
+               .ops = &rockchip_sound_da7219_ops,
+               /* set da7219 as slave */
+               .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
+                       SND_SOC_DAIFMT_CBS_CFS,
+       },
+       [DAILINK_DMIC] = {
+               .name = "DMIC",
+               .stream_name = "DMIC PCM",
+               .codec_dai_name = "dmic-hifi",
+               .ops = &rockchip_sound_dmic_ops,
+               .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
+                       SND_SOC_DAIFMT_CBS_CFS,
+       },
        [DAILINK_MAX98357A] = {
                .name = "MAX98357A",
                .stream_name = "MAX98357A PCM",
@@ -268,108 +383,95 @@ static struct snd_soc_dai_link rockchip_dailinks[] = {
                .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
                        SND_SOC_DAIFMT_CBS_CFS,
        },
-       [DAILINK_DA7219] = {
-               .name = "DA7219",
-               .stream_name = "DA7219 PCM",
-               .codec_dai_name = "da7219-hifi",
-               .init = rockchip_sound_da7219_init,
-               .ops = &rockchip_sound_da7219_ops,
-               /* set da7219 as slave */
-               .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
-                       SND_SOC_DAIFMT_CBS_CFS,
-       },
        /* RT5514 DSP for voice wakeup via spi bus */
        [DAILINK_RT5514_DSP] = {
                .name = "RT5514 DSP",
                .stream_name = "Wake on Voice",
-               .codec_name = "snd-soc-dummy",
-               .codec_dai_name = "snd-soc-dummy-dai",
+               .codec_dai_name = "rt5514-dsp-cpu-dai",
        },
 };
 
-static struct snd_soc_card rockchip_sound_card = {
-       .name = "rk3399-gru-sound",
-       .owner = THIS_MODULE,
-       .dai_link = rockchip_dailinks,
-       .num_links =  ARRAY_SIZE(rockchip_dailinks),
-       .dapm_widgets = rockchip_dapm_widgets,
-       .num_dapm_widgets = ARRAY_SIZE(rockchip_dapm_widgets),
-       .dapm_routes = rockchip_dapm_routes,
-       .num_dapm_routes = ARRAY_SIZE(rockchip_dapm_routes),
-       .controls = rockchip_controls,
-       .num_controls = ARRAY_SIZE(rockchip_controls),
-};
-
-static int rockchip_sound_match_stub(struct device *dev, void *data)
+static int rockchip_sound_codec_node_match(struct device_node *np_codec)
 {
-       return 1;
-}
+       int i;
 
-static int rockchip_sound_probe(struct platform_device *pdev)
-{
-       struct snd_soc_card *card = &rockchip_sound_card;
-       struct device_node *cpu_node;
-       struct device *dev;
-       struct device_driver *drv;
-       int i, ret;
-
-       cpu_node = of_parse_phandle(pdev->dev.of_node, "rockchip,cpu", 0);
-       if (!cpu_node) {
-               dev_err(&pdev->dev, "Property 'rockchip,cpu' missing or invalid\n");
-               return -EINVAL;
+       for (i = 0; i < ARRAY_SIZE(dailink_compat); i++) {
+               if (of_device_is_compatible(np_codec, dailink_compat[i]))
+                       return i;
        }
+       return -1;
+}
 
-       for (i = 0; i < DAILINK_ENTITIES; i++) {
-               rockchip_dailinks[i].platform_of_node = cpu_node;
-               rockchip_dailinks[i].cpu_of_node = cpu_node;
-
-               rockchip_dailinks[i].codec_of_node =
-                       of_parse_phandle(pdev->dev.of_node, "rockchip,codec", i);
-               if (!rockchip_dailinks[i].codec_of_node) {
-                       dev_err(&pdev->dev,
-                               "Property[%d] 'rockchip,codec' missing or invalid\n", i);
+static int rockchip_sound_of_parse_dais(struct device *dev,
+                                       struct snd_soc_card *card)
+{
+       struct device_node *np_cpu, *np_cpu0, *np_cpu1;
+       struct device_node *np_codec;
+       struct snd_soc_dai_link *dai;
+       int i, index;
+
+       card->dai_link = devm_kzalloc(dev, sizeof(rockchip_dais),
+                                     GFP_KERNEL);
+       if (!card->dai_link)
+               return -ENOMEM;
+
+       np_cpu0 = of_parse_phandle(dev->of_node, "rockchip,cpu", 0);
+       np_cpu1 = of_parse_phandle(dev->of_node, "rockchip,cpu", 1);
+
+       card->num_links = 0;
+       for (i = 0; i < ARRAY_SIZE(rockchip_dais); i++) {
+               np_codec = of_parse_phandle(dev->of_node,
+                                           "rockchip,codec", i);
+               if (!np_codec)
+                       break;
+
+               if (!of_device_is_available(np_codec))
+                       continue;
+
+               index = rockchip_sound_codec_node_match(np_codec);
+               if (index < 0)
+                       continue;
+
+               np_cpu = (index == DAILINK_CDNDP) ? np_cpu1 : np_cpu0;
+               if (!np_cpu) {
+                       dev_err(dev, "Missing 'rockchip,cpu' for %s\n",
+                               rockchip_dais[index].name);
                        return -EINVAL;
                }
-       }
 
-       /**
-        * To acquire the spi driver of the rt5514 and set the dai-links names
-        * for soc_bind_dai_link
-        */
-       drv = driver_find("rt5514", &spi_bus_type);
-       if (!drv) {
-               dev_err(&pdev->dev, "Can not find the rt5514 driver at the spi bus\n");
-               return -EINVAL;
+               dai = &card->dai_link[card->num_links++];
+               *dai = rockchip_dais[index];
+
+               dai->codec_of_node = np_codec;
+               dai->platform_of_node = np_cpu;
+               dai->cpu_of_node = np_cpu;
        }
 
-       dev = driver_find_device(drv, NULL, NULL, rockchip_sound_match_stub);
-       if (!dev) {
-               dev_err(&pdev->dev, "Can not find the rt5514 device\n");
-               return -ENODEV;
+       return 0;
+}
+
+static int rockchip_sound_probe(struct platform_device *pdev)
+{
+       struct snd_soc_card *card = &rockchip_sound_card;
+       int ret;
+
+       ret = rockchip_sound_of_parse_dais(&pdev->dev, card);
+       if (ret < 0) {
+               dev_err(&pdev->dev, "Failed to parse dais: %d\n", ret);
+               return ret;
        }
 
-       /* Set DMIC delay */
-       ret = device_property_read_u32(&pdev->dev, "dmic-delay",
-                                       &rt5514_dmic_delay);
+       /* Set DMIC wakeup delay */
+       ret = device_property_read_u32(&pdev->dev, "dmic-wakeup-delay-ms",
+                                       &dmic_wakeup_delay);
        if (ret) {
-               rt5514_dmic_delay = 0;
+               dmic_wakeup_delay = 0;
                dev_dbg(&pdev->dev,
-                       "no optional property 'dmic-delay' found, default: no delay\n");
+                       "no optional property 'dmic-wakeup-delay-ms' found, default: no delay\n");
        }
 
-       rockchip_dailinks[DAILINK_RT5514_DSP].cpu_name = kstrdup_const(dev_name(dev), GFP_KERNEL);
-       rockchip_dailinks[DAILINK_RT5514_DSP].cpu_dai_name = kstrdup_const(dev_name(dev), GFP_KERNEL);
-       rockchip_dailinks[DAILINK_RT5514_DSP].platform_name = kstrdup_const(dev_name(dev), GFP_KERNEL);
-
        card->dev = &pdev->dev;
-       platform_set_drvdata(pdev, card);
-
-       ret = devm_snd_soc_register_card(&pdev->dev, card);
-       if (ret)
-               dev_err(&pdev->dev, "%s snd_soc_register_card fail %d\n",
-                       __func__, ret);
-
-       return ret;
+       return devm_snd_soc_register_card(&pdev->dev, card);
 }
 
 static const struct of_device_id rockchip_sound_of_match[] = {