diff options
Diffstat (limited to 'sound/soc/codecs/wm8741.c')
| -rw-r--r-- | sound/soc/codecs/wm8741.c | 129 |
1 files changed, 116 insertions, 13 deletions
diff --git a/sound/soc/codecs/wm8741.c b/sound/soc/codecs/wm8741.c index 9e71c768966f..09ff01f2fc1e 100644 --- a/sound/soc/codecs/wm8741.c +++ b/sound/soc/codecs/wm8741.c @@ -41,6 +41,7 @@ static const char *wm8741_supply_names[WM8741_NUM_SUPPLIES] = { /* codec private data */ struct wm8741_priv { + struct wm8741_platform_data pdata; struct regmap *regmap; struct regulator_bulk_data supplies[WM8741_NUM_SUPPLIES]; unsigned int sysclk; @@ -87,13 +88,27 @@ static int wm8741_reset(struct snd_soc_codec *codec) static const DECLARE_TLV_DB_SCALE(dac_tlv_fine, -12700, 13, 0); static const DECLARE_TLV_DB_SCALE(dac_tlv, -12700, 400, 0); -static const struct snd_kcontrol_new wm8741_snd_controls[] = { +static const struct snd_kcontrol_new wm8741_snd_controls_stereo[] = { SOC_DOUBLE_R_TLV("Fine Playback Volume", WM8741_DACLLSB_ATTENUATION, WM8741_DACRLSB_ATTENUATION, 1, 255, 1, dac_tlv_fine), SOC_DOUBLE_R_TLV("Playback Volume", WM8741_DACLMSB_ATTENUATION, WM8741_DACRMSB_ATTENUATION, 0, 511, 1, dac_tlv), }; +static const struct snd_kcontrol_new wm8741_snd_controls_mono_left[] = { +SOC_SINGLE_TLV("Fine Playback Volume", WM8741_DACLLSB_ATTENUATION, + 1, 255, 1, dac_tlv_fine), +SOC_SINGLE_TLV("Playback Volume", WM8741_DACLMSB_ATTENUATION, + 0, 511, 1, dac_tlv), +}; + +static const struct snd_kcontrol_new wm8741_snd_controls_mono_right[] = { +SOC_SINGLE_TLV("Fine Playback Volume", WM8741_DACRLSB_ATTENUATION, + 1, 255, 1, dac_tlv_fine), +SOC_SINGLE_TLV("Playback Volume", WM8741_DACRMSB_ATTENUATION, + 0, 511, 1, dac_tlv), +}; + static const struct snd_soc_dapm_widget wm8741_dapm_widgets[] = { SND_SOC_DAPM_DAC("DACL", "Playback", SND_SOC_NOPM, 0, 0), SND_SOC_DAPM_DAC("DACR", "Playback", SND_SOC_NOPM, 0, 0), @@ -398,7 +413,7 @@ static struct snd_soc_dai_driver wm8741_dai = { .name = "wm8741", .playback = { .stream_name = "Playback", - .channels_min = 2, /* Mono modes not yet supported */ + .channels_min = 2, .channels_max = 2, .rates = WM8741_RATES, .formats = WM8741_FORMATS, @@ -416,6 +431,65 @@ static int wm8741_resume(struct snd_soc_codec *codec) #define wm8741_resume NULL #endif +static int wm8741_configure(struct snd_soc_codec *codec) +{ + struct wm8741_priv *wm8741 = snd_soc_codec_get_drvdata(codec); + + /* Configure differential mode */ + switch (wm8741->pdata.diff_mode) { + case WM8741_DIFF_MODE_STEREO: + case WM8741_DIFF_MODE_STEREO_REVERSED: + case WM8741_DIFF_MODE_MONO_LEFT: + case WM8741_DIFF_MODE_MONO_RIGHT: + snd_soc_update_bits(codec, WM8741_MODE_CONTROL_2, + WM8741_DIFF_MASK, + wm8741->pdata.diff_mode << WM8741_DIFF_SHIFT); + break; + default: + return -EINVAL; + } + + /* Change some default settings - latch VU */ + snd_soc_update_bits(codec, WM8741_DACLLSB_ATTENUATION, + WM8741_UPDATELL, WM8741_UPDATELL); + snd_soc_update_bits(codec, WM8741_DACLMSB_ATTENUATION, + WM8741_UPDATELM, WM8741_UPDATELM); + snd_soc_update_bits(codec, WM8741_DACRLSB_ATTENUATION, + WM8741_UPDATERL, WM8741_UPDATERL); + snd_soc_update_bits(codec, WM8741_DACRMSB_ATTENUATION, + WM8741_UPDATERM, WM8741_UPDATERM); + + return 0; +} + +static int wm8741_add_controls(struct snd_soc_codec *codec) +{ + struct wm8741_priv *wm8741 = snd_soc_codec_get_drvdata(codec); + + switch (wm8741->pdata.diff_mode) { + case WM8741_DIFF_MODE_STEREO: + case WM8741_DIFF_MODE_STEREO_REVERSED: + snd_soc_add_codec_controls(codec, + wm8741_snd_controls_stereo, + ARRAY_SIZE(wm8741_snd_controls_stereo)); + break; + case WM8741_DIFF_MODE_MONO_LEFT: + snd_soc_add_codec_controls(codec, + wm8741_snd_controls_mono_left, + ARRAY_SIZE(wm8741_snd_controls_mono_left)); + break; + case WM8741_DIFF_MODE_MONO_RIGHT: + snd_soc_add_codec_controls(codec, + wm8741_snd_controls_mono_right, + ARRAY_SIZE(wm8741_snd_controls_mono_right)); + break; + default: + return -EINVAL; + } + + return 0; +} + static int wm8741_probe(struct snd_soc_codec *codec) { struct wm8741_priv *wm8741 = snd_soc_codec_get_drvdata(codec); @@ -434,15 +508,17 @@ static int wm8741_probe(struct snd_soc_codec *codec) goto err_enable; } - /* Change some default settings - latch VU */ - snd_soc_update_bits(codec, WM8741_DACLLSB_ATTENUATION, - WM8741_UPDATELL, WM8741_UPDATELL); - snd_soc_update_bits(codec, WM8741_DACLMSB_ATTENUATION, - WM8741_UPDATELM, WM8741_UPDATELM); - snd_soc_update_bits(codec, WM8741_DACRLSB_ATTENUATION, - WM8741_UPDATERL, WM8741_UPDATERL); - snd_soc_update_bits(codec, WM8741_DACRMSB_ATTENUATION, - WM8741_UPDATERM, WM8741_UPDATERM); + ret = wm8741_configure(codec); + if (ret < 0) { + dev_err(codec->dev, "Failed to change default settings\n"); + goto err_enable; + } + + ret = wm8741_add_controls(codec); + if (ret < 0) { + dev_err(codec->dev, "Failed to add controls\n"); + goto err_enable; + } dev_dbg(codec->dev, "Successful registration\n"); return ret; @@ -467,8 +543,6 @@ static struct snd_soc_codec_driver soc_codec_dev_wm8741 = { .remove = wm8741_remove, .resume = wm8741_resume, - .controls = wm8741_snd_controls, - .num_controls = ARRAY_SIZE(wm8741_snd_controls), .dapm_widgets = wm8741_dapm_widgets, .num_dapm_widgets = ARRAY_SIZE(wm8741_dapm_widgets), .dapm_routes = wm8741_dapm_routes, @@ -493,6 +567,23 @@ static const struct regmap_config wm8741_regmap = { .readable_reg = wm8741_readable, }; +static int wm8741_set_pdata(struct device *dev, struct wm8741_priv *wm8741) +{ + const struct wm8741_platform_data *pdata = dev_get_platdata(dev); + u32 diff_mode; + + if (dev->of_node) { + if (of_property_read_u32(dev->of_node, "diff-mode", &diff_mode) + >= 0) + wm8741->pdata.diff_mode = diff_mode; + } else { + if (pdata != NULL) + memcpy(&wm8741->pdata, pdata, sizeof(wm8741->pdata)); + } + + return 0; +} + #if IS_ENABLED(CONFIG_I2C) static int wm8741_i2c_probe(struct i2c_client *i2c, const struct i2c_device_id *id) @@ -522,6 +613,12 @@ static int wm8741_i2c_probe(struct i2c_client *i2c, return ret; } + ret = wm8741_set_pdata(&i2c->dev, wm8741); + if (ret != 0) { + dev_err(&i2c->dev, "Failed to set pdata: %d\n", ret); + return ret; + } + i2c_set_clientdata(i2c, wm8741); ret = snd_soc_register_codec(&i2c->dev, @@ -582,6 +679,12 @@ static int wm8741_spi_probe(struct spi_device *spi) return ret; } + ret = wm8741_set_pdata(&spi->dev, wm8741); + if (ret != 0) { + dev_err(&spi->dev, "Failed to set pdata: %d\n", ret); + return ret; + } + spi_set_drvdata(spi, wm8741); ret = snd_soc_register_codec(&spi->dev, |