diff options
Diffstat (limited to 'sound/soc/tegra/tegra_wm8903.c')
-rw-r--r-- | sound/soc/tegra/tegra_wm8903.c | 193 |
1 files changed, 120 insertions, 73 deletions
diff --git a/sound/soc/tegra/tegra_wm8903.c b/sound/soc/tegra/tegra_wm8903.c index a81cf39..566655e 100644 --- a/sound/soc/tegra/tegra_wm8903.c +++ b/sound/soc/tegra/tegra_wm8903.c @@ -34,6 +34,7 @@ #include <linux/platform_device.h> #include <linux/slab.h> #include <linux/gpio.h> +#include <linux/of_gpio.h> #include <mach/tegra_wm8903_pdata.h> @@ -59,8 +60,9 @@ #define GPIO_HP_DET BIT(4) struct tegra_wm8903 { + struct tegra_wm8903_platform_data pdata; + struct platform_device *pcm_dev; struct tegra_asoc_utils_data util_data; - struct tegra_wm8903_platform_data *pdata; int gpio_requested; }; @@ -160,7 +162,7 @@ static int tegra_wm8903_event_int_spk(struct snd_soc_dapm_widget *w, struct snd_soc_dapm_context *dapm = w->dapm; struct snd_soc_card *card = dapm->card; struct tegra_wm8903 *machine = snd_soc_card_get_drvdata(card); - struct tegra_wm8903_platform_data *pdata = machine->pdata; + struct tegra_wm8903_platform_data *pdata = &machine->pdata; if (!(machine->gpio_requested & GPIO_SPKR_EN)) return 0; @@ -177,7 +179,7 @@ static int tegra_wm8903_event_hp(struct snd_soc_dapm_widget *w, struct snd_soc_dapm_context *dapm = w->dapm; struct snd_soc_card *card = dapm->card; struct tegra_wm8903 *machine = snd_soc_card_get_drvdata(card); - struct tegra_wm8903_platform_data *pdata = machine->pdata; + struct tegra_wm8903_platform_data *pdata = &machine->pdata; if (!(machine->gpio_requested & GPIO_HP_MUTE)) return 0; @@ -201,8 +203,8 @@ static const struct snd_soc_dapm_route harmony_audio_map[] = { {"Int Spk", NULL, "RON"}, {"Int Spk", NULL, "LOP"}, {"Int Spk", NULL, "LON"}, - {"Mic Bias", NULL, "Mic Jack"}, - {"IN1L", NULL, "Mic Bias"}, + {"Mic Jack", NULL, "MICBIAS"}, + {"IN1L", NULL, "Mic Jack"}, }; static const struct snd_soc_dapm_route seaboard_audio_map[] = { @@ -212,8 +214,8 @@ static const struct snd_soc_dapm_route seaboard_audio_map[] = { {"Int Spk", NULL, "RON"}, {"Int Spk", NULL, "LOP"}, {"Int Spk", NULL, "LON"}, - {"Mic Bias", NULL, "Mic Jack"}, - {"IN1R", NULL, "Mic Bias"}, + {"Mic Jack", NULL, "MICBIAS"}, + {"IN1R", NULL, "Mic Jack"}, }; static const struct snd_soc_dapm_route kaen_audio_map[] = { @@ -223,8 +225,8 @@ static const struct snd_soc_dapm_route kaen_audio_map[] = { {"Int Spk", NULL, "RON"}, {"Int Spk", NULL, "LOP"}, {"Int Spk", NULL, "LON"}, - {"Mic Bias", NULL, "Mic Jack"}, - {"IN2R", NULL, "Mic Bias"}, + {"Mic Jack", NULL, "MICBIAS"}, + {"IN2R", NULL, "Mic Jack"}, }; static const struct snd_soc_dapm_route aebl_audio_map[] = { @@ -232,8 +234,8 @@ static const struct snd_soc_dapm_route aebl_audio_map[] = { {"Headphone Jack", NULL, "HPOUTL"}, {"Int Spk", NULL, "LINEOUTR"}, {"Int Spk", NULL, "LINEOUTL"}, - {"Mic Bias", NULL, "Mic Jack"}, - {"IN1R", NULL, "Mic Bias"}, + {"Mic Jack", NULL, "MICBIAS"}, + {"IN1R", NULL, "Mic Jack"}, }; static const struct snd_kcontrol_new tegra_wm8903_controls[] = { @@ -246,9 +248,36 @@ static int tegra_wm8903_init(struct snd_soc_pcm_runtime *rtd) struct snd_soc_dapm_context *dapm = &codec->dapm; struct snd_soc_card *card = codec->card; struct tegra_wm8903 *machine = snd_soc_card_get_drvdata(card); - struct tegra_wm8903_platform_data *pdata = machine->pdata; + struct tegra_wm8903_platform_data *pdata = &machine->pdata; + struct device_node *np = card->dev->of_node; int ret; + if (card->dev->platform_data) { + memcpy(pdata, card->dev->platform_data, sizeof(*pdata)); + } else if (np) { + /* + * This part must be in init() rather than probe() in order to + * guarantee that the WM8903 has been probed, and hence its + * GPIO controller registered, which is a pre-condition for + * of_get_named_gpio() to be able to map the phandles in the + * properties to the controller node. Given this, all + * pdata handling is in init() for consistency. + */ + pdata->gpio_spkr_en = of_get_named_gpio(np, + "nvidia,spkr-en-gpios", 0); + pdata->gpio_hp_mute = of_get_named_gpio(np, + "nvidia,hp-mute-gpios", 0); + pdata->gpio_hp_det = of_get_named_gpio(np, + "nvidia,hp-det-gpios", 0); + pdata->gpio_int_mic_en = of_get_named_gpio(np, + "nvidia,int-mic-en-gpios", 0); + pdata->gpio_ext_mic_en = of_get_named_gpio(np, + "nvidia,ext-mic-en-gpios", 0); + } else { + dev_err(card->dev, "No platform data supplied\n"); + return -EINVAL; + } + if (gpio_is_valid(pdata->gpio_spkr_en)) { ret = gpio_request(pdata->gpio_spkr_en, "spkr_en"); if (ret) { @@ -316,28 +345,7 @@ static int tegra_wm8903_init(struct snd_soc_pcm_runtime *rtd) wm8903_mic_detect(codec, &tegra_wm8903_mic_jack, SND_JACK_MICROPHONE, 0); - snd_soc_dapm_force_enable_pin(dapm, "Mic Bias"); - - /* FIXME: Calculate automatically based on DAPM routes? */ - if (!machine_is_harmony()) - snd_soc_dapm_nc_pin(dapm, "IN1L"); - if (!machine_is_seaboard() && !machine_is_aebl()) - snd_soc_dapm_nc_pin(dapm, "IN1R"); - snd_soc_dapm_nc_pin(dapm, "IN2L"); - if (!machine_is_kaen()) - snd_soc_dapm_nc_pin(dapm, "IN2R"); - snd_soc_dapm_nc_pin(dapm, "IN3L"); - snd_soc_dapm_nc_pin(dapm, "IN3R"); - - if (machine_is_aebl()) { - snd_soc_dapm_nc_pin(dapm, "LON"); - snd_soc_dapm_nc_pin(dapm, "RON"); - snd_soc_dapm_nc_pin(dapm, "ROP"); - snd_soc_dapm_nc_pin(dapm, "LOP"); - } else { - snd_soc_dapm_nc_pin(dapm, "LINEOUTR"); - snd_soc_dapm_nc_pin(dapm, "LINEOUTL"); - } + snd_soc_dapm_force_enable_pin(dapm, "MICBIAS"); return 0; } @@ -355,6 +363,7 @@ static struct snd_soc_dai_link tegra_wm8903_dai = { static struct snd_soc_card snd_soc_tegra_wm8903 = { .name = "tegra-wm8903", + .owner = THIS_MODULE, .dai_link = &tegra_wm8903_dai, .num_links = 1, @@ -362,51 +371,91 @@ static struct snd_soc_card snd_soc_tegra_wm8903 = { .num_controls = ARRAY_SIZE(tegra_wm8903_controls), .dapm_widgets = tegra_wm8903_dapm_widgets, .num_dapm_widgets = ARRAY_SIZE(tegra_wm8903_dapm_widgets), + .fully_routed = true, }; static __devinit int tegra_wm8903_driver_probe(struct platform_device *pdev) { struct snd_soc_card *card = &snd_soc_tegra_wm8903; struct tegra_wm8903 *machine; - struct tegra_wm8903_platform_data *pdata; int ret; - pdata = pdev->dev.platform_data; - if (!pdata) { + if (!pdev->dev.platform_data && !pdev->dev.of_node) { dev_err(&pdev->dev, "No platform data supplied\n"); return -EINVAL; } - machine = kzalloc(sizeof(struct tegra_wm8903), GFP_KERNEL); + machine = devm_kzalloc(&pdev->dev, sizeof(struct tegra_wm8903), + GFP_KERNEL); if (!machine) { dev_err(&pdev->dev, "Can't allocate tegra_wm8903 struct\n"); - return -ENOMEM; + ret = -ENOMEM; + goto err; } - - machine->pdata = pdata; - - ret = tegra_asoc_utils_init(&machine->util_data, &pdev->dev); - if (ret) - goto err_free_machine; + machine->pcm_dev = ERR_PTR(-EINVAL); card->dev = &pdev->dev; platform_set_drvdata(pdev, card); snd_soc_card_set_drvdata(card, machine); - if (machine_is_harmony()) { - card->dapm_routes = harmony_audio_map; - card->num_dapm_routes = ARRAY_SIZE(harmony_audio_map); - } else if (machine_is_seaboard()) { - card->dapm_routes = seaboard_audio_map; - card->num_dapm_routes = ARRAY_SIZE(seaboard_audio_map); - } else if (machine_is_kaen()) { - card->dapm_routes = kaen_audio_map; - card->num_dapm_routes = ARRAY_SIZE(kaen_audio_map); + if (pdev->dev.of_node) { + ret = snd_soc_of_parse_card_name(card, "nvidia,model"); + if (ret) + goto err; + + ret = snd_soc_of_parse_audio_routing(card, + "nvidia,audio-routing"); + if (ret) + goto err; + + tegra_wm8903_dai.codec_name = NULL; + tegra_wm8903_dai.codec_of_node = of_parse_phandle( + pdev->dev.of_node, "nvidia,audio-codec", 0); + if (!tegra_wm8903_dai.codec_of_node) { + dev_err(&pdev->dev, + "Property 'nvidia,audio-codec' missing or invalid\n"); + ret = -EINVAL; + goto err; + } + + tegra_wm8903_dai.cpu_dai_name = NULL; + tegra_wm8903_dai.cpu_dai_of_node = of_parse_phandle( + pdev->dev.of_node, "nvidia,i2s-controller", 0); + if (!tegra_wm8903_dai.cpu_dai_of_node) { + dev_err(&pdev->dev, + "Property 'nvidia,i2s-controller' missing or invalid\n"); + ret = -EINVAL; + goto err; + } + + machine->pcm_dev = platform_device_register_simple( + "tegra-pcm-audio", -1, NULL, 0); + if (IS_ERR(machine->pcm_dev)) { + dev_err(&pdev->dev, + "Can't instantiate tegra-pcm-audio\n"); + ret = PTR_ERR(machine->pcm_dev); + goto err; + } } else { - card->dapm_routes = aebl_audio_map; - card->num_dapm_routes = ARRAY_SIZE(aebl_audio_map); + if (machine_is_harmony()) { + card->dapm_routes = harmony_audio_map; + card->num_dapm_routes = ARRAY_SIZE(harmony_audio_map); + } else if (machine_is_seaboard()) { + card->dapm_routes = seaboard_audio_map; + card->num_dapm_routes = ARRAY_SIZE(seaboard_audio_map); + } else if (machine_is_kaen()) { + card->dapm_routes = kaen_audio_map; + card->num_dapm_routes = ARRAY_SIZE(kaen_audio_map); + } else { + card->dapm_routes = aebl_audio_map; + card->num_dapm_routes = ARRAY_SIZE(aebl_audio_map); + } } + ret = tegra_asoc_utils_init(&machine->util_data, &pdev->dev); + if (ret) + goto err_unregister; + ret = snd_soc_register_card(card); if (ret) { dev_err(&pdev->dev, "snd_soc_register_card failed (%d)\n", @@ -418,8 +467,10 @@ static __devinit int tegra_wm8903_driver_probe(struct platform_device *pdev) err_fini_utils: tegra_asoc_utils_fini(&machine->util_data); -err_free_machine: - kfree(machine); +err_unregister: + if (!IS_ERR(machine->pcm_dev)) + platform_device_unregister(machine->pcm_dev); +err: return ret; } @@ -427,7 +478,7 @@ static int __devexit tegra_wm8903_driver_remove(struct platform_device *pdev) { struct snd_soc_card *card = platform_get_drvdata(pdev); struct tegra_wm8903 *machine = snd_soc_card_get_drvdata(card); - struct tegra_wm8903_platform_data *pdata = machine->pdata; + struct tegra_wm8903_platform_data *pdata = &machine->pdata; if (machine->gpio_requested & GPIO_HP_DET) snd_soc_jack_free_gpios(&tegra_wm8903_hp_jack, @@ -446,35 +497,31 @@ static int __devexit tegra_wm8903_driver_remove(struct platform_device *pdev) snd_soc_unregister_card(card); tegra_asoc_utils_fini(&machine->util_data); - - kfree(machine); + if (!IS_ERR(machine->pcm_dev)) + platform_device_unregister(machine->pcm_dev); return 0; } +static const struct of_device_id tegra_wm8903_of_match[] __devinitconst = { + { .compatible = "nvidia,tegra-audio-wm8903", }, + {}, +}; + static struct platform_driver tegra_wm8903_driver = { .driver = { .name = DRV_NAME, .owner = THIS_MODULE, .pm = &snd_soc_pm_ops, + .of_match_table = tegra_wm8903_of_match, }, .probe = tegra_wm8903_driver_probe, .remove = __devexit_p(tegra_wm8903_driver_remove), }; - -static int __init tegra_wm8903_modinit(void) -{ - return platform_driver_register(&tegra_wm8903_driver); -} -module_init(tegra_wm8903_modinit); - -static void __exit tegra_wm8903_modexit(void) -{ - platform_driver_unregister(&tegra_wm8903_driver); -} -module_exit(tegra_wm8903_modexit); +module_platform_driver(tegra_wm8903_driver); MODULE_AUTHOR("Stephen Warren <swarren@nvidia.com>"); MODULE_DESCRIPTION("Tegra+WM8903 machine ASoC driver"); MODULE_LICENSE("GPL"); MODULE_ALIAS("platform:" DRV_NAME); +MODULE_DEVICE_TABLE(of, tegra_wm8903_of_match); |