Merge remote-tracking branch 'asoc/topic/intel' into asoc-next
[muen/linux.git] / sound / soc / intel / boards / cht_bsw_max98090_ti.c
index 455a55af7ad2d1949edebd4191a6cfa90f59900d..d3e1c7e12004dded46fd24ac9345758cea556233 100644 (file)
@@ -23,6 +23,7 @@
 #include <linux/platform_device.h>
 #include <linux/slab.h>
 #include <linux/acpi.h>
+#include <linux/clk.h>
 #include <sound/pcm.h>
 #include <sound/pcm_params.h>
 #include <sound/soc.h>
 #define CHT_CODEC_DAI  "HiFi"
 
 struct cht_mc_private {
+       struct clk *mclk;
        struct snd_soc_jack jack;
        bool ts3a227e_present;
 };
 
+static int platform_clock_control(struct snd_soc_dapm_widget *w,
+                                         struct snd_kcontrol *k, int  event)
+{
+       struct snd_soc_dapm_context *dapm = w->dapm;
+       struct snd_soc_card *card = dapm->card;
+       struct snd_soc_dai *codec_dai;
+       struct cht_mc_private *ctx = snd_soc_card_get_drvdata(card);
+       int ret;
+
+       codec_dai = snd_soc_card_get_codec_dai(card, CHT_CODEC_DAI);
+       if (!codec_dai) {
+               dev_err(card->dev, "Codec dai not found; Unable to set platform clock\n");
+               return -EIO;
+       }
+
+       if (SND_SOC_DAPM_EVENT_ON(event)) {
+               ret = clk_prepare_enable(ctx->mclk);
+               if (ret < 0) {
+                       dev_err(card->dev,
+                               "could not configure MCLK state");
+                       return ret;
+               }
+       } else {
+               clk_disable_unprepare(ctx->mclk);
+       }
+
+       return 0;
+}
+
 static const struct snd_soc_dapm_widget cht_dapm_widgets[] = {
        SND_SOC_DAPM_HP("Headphone", NULL),
        SND_SOC_DAPM_MIC("Headset Mic", NULL),
        SND_SOC_DAPM_MIC("Int Mic", NULL),
        SND_SOC_DAPM_SPK("Ext Spk", NULL),
+       SND_SOC_DAPM_SUPPLY("Platform Clock", SND_SOC_NOPM, 0, 0,
+                           platform_clock_control, SND_SOC_DAPM_PRE_PMU |
+                           SND_SOC_DAPM_POST_PMD),
 };
 
 static const struct snd_soc_dapm_route cht_audio_map[] = {
@@ -60,6 +94,10 @@ static const struct snd_soc_dapm_route cht_audio_map[] = {
        {"codec_in0", NULL, "ssp2 Rx" },
        {"codec_in1", NULL, "ssp2 Rx" },
        {"ssp2 Rx", NULL, "HiFi Capture"},
+       {"Headphone", NULL, "Platform Clock"},
+       {"Headset Mic", NULL, "Platform Clock"},
+       {"Int Mic", NULL, "Platform Clock"},
+       {"Ext Spk", NULL, "Platform Clock"},
 };
 
 static const struct snd_kcontrol_new cht_mc_controls[] = {
@@ -109,6 +147,40 @@ static struct notifier_block cht_jack_nb = {
        .notifier_call = cht_ti_jack_event,
 };
 
+static struct snd_soc_jack_pin hs_jack_pins[] = {
+       {
+               .pin    = "Headphone",
+               .mask   = SND_JACK_HEADPHONE,
+       },
+       {
+               .pin    = "Headset Mic",
+               .mask   = SND_JACK_MICROPHONE,
+       },
+};
+
+static struct snd_soc_jack_gpio hs_jack_gpios[] = {
+       {
+               .name           = "hp",
+               .report         = SND_JACK_HEADPHONE | SND_JACK_LINEOUT,
+               .debounce_time  = 200,
+       },
+       {
+               .name           = "mic",
+               .invert         = 1,
+               .report         = SND_JACK_MICROPHONE,
+               .debounce_time  = 200,
+       },
+};
+
+static const struct acpi_gpio_params hp_gpios = { 0, 0, false };
+static const struct acpi_gpio_params mic_gpios = { 1, 0, false };
+
+static const struct acpi_gpio_mapping acpi_max98090_gpios[] = {
+       { "hp-gpios", &hp_gpios, 1 },
+       { "mic-gpios", &mic_gpios, 1 },
+       {},
+};
+
 static int cht_codec_init(struct snd_soc_pcm_runtime *runtime)
 {
        int ret;
@@ -116,30 +188,55 @@ static int cht_codec_init(struct snd_soc_pcm_runtime *runtime)
        struct cht_mc_private *ctx = snd_soc_card_get_drvdata(runtime->card);
        struct snd_soc_jack *jack = &ctx->jack;
 
-       /**
-       * TI supports 4 butons headset detection
-       * KEY_MEDIA
-       * KEY_VOICECOMMAND
-       * KEY_VOLUMEUP
-       * KEY_VOLUMEDOWN
-       */
-       if (ctx->ts3a227e_present)
-               jack_type = SND_JACK_HEADPHONE | SND_JACK_MICROPHONE |
-                                       SND_JACK_BTN_0 | SND_JACK_BTN_1 |
-                                       SND_JACK_BTN_2 | SND_JACK_BTN_3;
-       else
-               jack_type = SND_JACK_HEADPHONE | SND_JACK_MICROPHONE;
+       if (ctx->ts3a227e_present) {
+               /*
+                * The jack has already been created in the
+                * cht_max98090_headset_init() function.
+                */
+               snd_soc_jack_notifier_register(jack, &cht_jack_nb);
+               return 0;
+       }
 
-       ret = snd_soc_card_jack_new(runtime->card, "Headset Jack",
-                                       jack_type, jack, NULL, 0);
+       jack_type = SND_JACK_HEADPHONE | SND_JACK_MICROPHONE;
 
+       ret = snd_soc_card_jack_new(runtime->card, "Headset Jack",
+                                   jack_type, jack,
+                                   hs_jack_pins, ARRAY_SIZE(hs_jack_pins));
        if (ret) {
                dev_err(runtime->dev, "Headset Jack creation failed %d\n", ret);
                return ret;
        }
 
-       if (ctx->ts3a227e_present)
-               snd_soc_jack_notifier_register(jack, &cht_jack_nb);
+       ret = snd_soc_jack_add_gpiods(runtime->card->dev->parent, jack,
+                                     ARRAY_SIZE(hs_jack_gpios),
+                                     hs_jack_gpios);
+       if (ret) {
+               /*
+                * flag error but don't bail if jack detect is broken
+                * due to platform issues or bad BIOS/configuration
+                */
+               dev_err(runtime->dev,
+                       "jack detection gpios not added, error %d\n", ret);
+       }
+
+       /*
+        * The firmware might enable the clock at
+        * boot (this information may or may not
+        * be reflected in the enable clock register).
+        * To change the rate we must disable the clock
+        * first to cover these cases. Due to common
+        * clock framework restrictions that do not allow
+        * to disable a clock that has not been enabled,
+        * we need to enable the clock first.
+        */
+       ret = clk_prepare_enable(ctx->mclk);
+       if (!ret)
+               clk_disable_unprepare(ctx->mclk);
+
+       ret = clk_set_rate(ctx->mclk, CHT_PLAT_CLK_3_HZ);
+
+       if (ret)
+               dev_err(runtime->dev, "unable to set MCLK rate\n");
 
        return ret;
 }
@@ -188,8 +285,29 @@ static int cht_max98090_headset_init(struct snd_soc_component *component)
 {
        struct snd_soc_card *card = component->card;
        struct cht_mc_private *ctx = snd_soc_card_get_drvdata(card);
+       struct snd_soc_jack *jack = &ctx->jack;
+       int jack_type;
+       int ret;
 
-       return ts3a227e_enable_jack_detect(component, &ctx->jack);
+       /*
+        * TI supports 4 butons headset detection
+        * KEY_MEDIA
+        * KEY_VOICECOMMAND
+        * KEY_VOLUMEUP
+        * KEY_VOLUMEDOWN
+        */
+       jack_type = SND_JACK_HEADPHONE | SND_JACK_MICROPHONE |
+                   SND_JACK_BTN_0 | SND_JACK_BTN_1 |
+                   SND_JACK_BTN_2 | SND_JACK_BTN_3;
+
+       ret = snd_soc_card_jack_new(card, "Headset Jack", jack_type,
+                                   jack, NULL, 0);
+       if (ret) {
+               dev_err(card->dev, "Headset Jack creation failed %d\n", ret);
+               return ret;
+       }
+
+       return ts3a227e_enable_jack_detect(component, jack);
 }
 
 static const struct snd_soc_ops cht_aif1_ops = {
@@ -232,18 +350,10 @@ static struct snd_soc_dai_link cht_dailink[] = {
                .dpcm_playback = 1,
                .ops = &cht_aif1_ops,
        },
-       [MERR_DPCM_COMPR] = {
-               .name = "Compressed Port",
-               .stream_name = "Compress",
-               .cpu_dai_name = "compress-cpu-dai",
-               .codec_dai_name = "snd-soc-dummy-dai",
-               .codec_name = "snd-soc-dummy",
-               .platform_name = "sst-mfld-platform",
-       },
        /* back ends */
        {
                .name = "SSP2-Codec",
-               .id = 1,
+               .id = 0,
                .cpu_dai_name = "ssp2-port",
                .platform_name = "sst-mfld-platform",
                .no_pcm = 1,
@@ -277,6 +387,7 @@ static struct snd_soc_card snd_soc_card_cht = {
 
 static int snd_cht_mc_probe(struct platform_device *pdev)
 {
+       struct device *dev = &pdev->dev;
        int ret_val = 0;
        struct cht_mc_private *drv;
 
@@ -289,11 +400,25 @@ static int snd_cht_mc_probe(struct platform_device *pdev)
                /* no need probe TI jack detection chip */
                snd_soc_card_cht.aux_dev = NULL;
                snd_soc_card_cht.num_aux_devs = 0;
+
+               ret_val = devm_acpi_dev_add_driver_gpios(dev->parent,
+                                                        acpi_max98090_gpios);
+               if (ret_val)
+                       dev_dbg(dev, "Unable to add GPIO mapping table\n");
        }
 
        /* register the soc card */
        snd_soc_card_cht.dev = &pdev->dev;
        snd_soc_card_set_drvdata(&snd_soc_card_cht, drv);
+
+       drv->mclk = devm_clk_get(&pdev->dev, "pmc_plt_clk_3");
+       if (IS_ERR(drv->mclk)) {
+               dev_err(&pdev->dev,
+                       "Failed to get MCLK from pmc_plt_clk_3: %ld\n",
+                       PTR_ERR(drv->mclk));
+               return PTR_ERR(drv->mclk);
+       }
+
        ret_val = devm_snd_soc_register_card(&pdev->dev, &snd_soc_card_cht);
        if (ret_val) {
                dev_err(&pdev->dev,