static int pcm3008_soc_remove(struct snd_soc_codec *codec) { struct pcm3008_setup_data *setup = codec->dev->platform_data; pcm3008_gpio_free(setup); return 0; }
static int pcm3008_soc_probe(struct snd_soc_codec *codec) { struct pcm3008_setup_data *setup = codec->dev->platform_data; int ret = 0; #ifdef CONFIG_DEBUG_PRINTK printk(KERN_INFO "PCM3008 SoC Audio Codec %s\n", PCM3008_VERSION); #else ; #endif /* DEM1 DEM0 DE-EMPHASIS_MODE * Low Low De-emphasis 44.1 kHz ON * Low High De-emphasis OFF * High Low De-emphasis 48 kHz ON * High High De-emphasis 32 kHz ON */ /* Configure DEM0 GPIO (turning OFF DAC De-emphasis). */ ret = gpio_request(setup->dem0_pin, "codec_dem0"); if (ret == 0) ret = gpio_direction_output(setup->dem0_pin, 1); if (ret != 0) goto gpio_err; /* Configure DEM1 GPIO (turning OFF DAC De-emphasis). */ ret = gpio_request(setup->dem1_pin, "codec_dem1"); if (ret == 0) ret = gpio_direction_output(setup->dem1_pin, 0); if (ret != 0) goto gpio_err; /* Configure PDAD GPIO. */ ret = gpio_request(setup->pdad_pin, "codec_pdad"); if (ret == 0) ret = gpio_direction_output(setup->pdad_pin, 1); if (ret != 0) goto gpio_err; /* Configure PDDA GPIO. */ ret = gpio_request(setup->pdda_pin, "codec_pdda"); if (ret == 0) ret = gpio_direction_output(setup->pdda_pin, 1); if (ret != 0) goto gpio_err; return ret; gpio_err: pcm3008_gpio_free(setup); return ret; }
static int pcm3008_soc_remove(struct platform_device *pdev) { struct snd_soc_device *socdev = platform_get_drvdata(pdev); struct snd_soc_codec *codec = socdev->card->codec; struct pcm3008_setup_data *setup = socdev->codec_data; if (!codec) return 0; pcm3008_gpio_free(setup); snd_soc_free_pcms(socdev); kfree(socdev->card->codec); return 0; }
static int pcm3008_soc_probe(struct platform_device *pdev) { struct snd_soc_device *socdev = platform_get_drvdata(pdev); struct snd_soc_codec *codec; struct pcm3008_setup_data *setup = socdev->codec_data; int ret = 0; printk(KERN_INFO "PCM3008 SoC Audio Codec %s\n", PCM3008_VERSION); socdev->card->codec = kzalloc(sizeof(struct snd_soc_codec), GFP_KERNEL); if (!socdev->card->codec) return -ENOMEM; codec = socdev->card->codec; mutex_init(&codec->mutex); codec->name = "PCM3008"; codec->owner = THIS_MODULE; codec->dai = &pcm3008_dai; codec->num_dai = 1; codec->write = NULL; codec->read = NULL; INIT_LIST_HEAD(&codec->dapm_widgets); INIT_LIST_HEAD(&codec->dapm_paths); /* Register PCMs. */ ret = snd_soc_new_pcms(socdev, SNDRV_DEFAULT_IDX1, SNDRV_DEFAULT_STR1); if (ret < 0) { printk(KERN_ERR "pcm3008: failed to create pcms\n"); goto pcm_err; } /* Register Card. */ ret = snd_soc_init_card(socdev); if (ret < 0) { printk(KERN_ERR "pcm3008: failed to register card\n"); goto card_err; } /* DEM1 DEM0 DE-EMPHASIS_MODE * Low Low De-emphasis 44.1 kHz ON * Low High De-emphasis OFF * High Low De-emphasis 48 kHz ON * High High De-emphasis 32 kHz ON */ /* Configure DEM0 GPIO (turning OFF DAC De-emphasis). */ ret = gpio_request(setup->dem0_pin, "codec_dem0"); if (ret == 0) ret = gpio_direction_output(setup->dem0_pin, 1); if (ret != 0) goto gpio_err; /* Configure DEM1 GPIO (turning OFF DAC De-emphasis). */ ret = gpio_request(setup->dem1_pin, "codec_dem1"); if (ret == 0) ret = gpio_direction_output(setup->dem1_pin, 0); if (ret != 0) goto gpio_err; /* Configure PDAD GPIO. */ ret = gpio_request(setup->pdad_pin, "codec_pdad"); if (ret == 0) ret = gpio_direction_output(setup->pdad_pin, 1); if (ret != 0) goto gpio_err; /* Configure PDDA GPIO. */ ret = gpio_request(setup->pdda_pin, "codec_pdda"); if (ret == 0) ret = gpio_direction_output(setup->pdda_pin, 1); if (ret != 0) goto gpio_err; return ret; gpio_err: pcm3008_gpio_free(setup); card_err: snd_soc_free_pcms(socdev); pcm_err: kfree(socdev->card->codec); return ret; }