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Diffstat (limited to 'sound/soc/codecs/wm8960.c')
-rw-r--r--sound/soc/codecs/wm8960.c113
1 files changed, 52 insertions, 61 deletions
diff --git a/sound/soc/codecs/wm8960.c b/sound/soc/codecs/wm8960.c
index 4dc4e85..031a1ae 100644
--- a/sound/soc/codecs/wm8960.c
+++ b/sound/soc/codecs/wm8960.c
@@ -125,9 +125,10 @@ struct wm8960_priv {
struct snd_soc_dapm_widget *out3;
bool deemph;
int playback_fs;
+ struct wm8960_data pdata;
};
-#define wm8960_reset(c) snd_soc_write(c, WM8960_RESET, 0)
+#define wm8960_reset(c) regmap_write(c, WM8960_RESET, 0)
/* enumerated controls */
static const char *wm8960_polarity[] = {"No Inversion", "Left Inverted",
@@ -440,8 +441,8 @@ static const struct snd_soc_dapm_route audio_paths_capless[] = {
static int wm8960_add_widgets(struct snd_soc_codec *codec)
{
- struct wm8960_data *pdata = codec->dev->platform_data;
struct wm8960_priv *wm8960 = snd_soc_codec_get_drvdata(codec);
+ struct wm8960_data *pdata = &wm8960->pdata;
struct snd_soc_dapm_context *dapm = &codec->dapm;
struct snd_soc_dapm_widget *w;
@@ -942,56 +943,15 @@ static struct snd_soc_dai_driver wm8960_dai = {
.symmetric_rates = 1,
};
-static int wm8960_suspend(struct snd_soc_codec *codec)
-{
- struct wm8960_priv *wm8960 = snd_soc_codec_get_drvdata(codec);
-
- wm8960->set_bias_level(codec, SND_SOC_BIAS_OFF);
- return 0;
-}
-
-static int wm8960_resume(struct snd_soc_codec *codec)
-{
- struct wm8960_priv *wm8960 = snd_soc_codec_get_drvdata(codec);
-
- wm8960->set_bias_level(codec, SND_SOC_BIAS_STANDBY);
- return 0;
-}
-
static int wm8960_probe(struct snd_soc_codec *codec)
{
struct wm8960_priv *wm8960 = snd_soc_codec_get_drvdata(codec);
- struct wm8960_data *pdata = dev_get_platdata(codec->dev);
- int ret;
-
- wm8960->set_bias_level = wm8960_set_bias_level_out3;
-
- if (!pdata) {
- dev_warn(codec->dev, "No platform data supplied\n");
- } else {
- if (pdata->capless)
- wm8960->set_bias_level = wm8960_set_bias_level_capless;
- }
-
- ret = wm8960_reset(codec);
- if (ret < 0) {
- dev_err(codec->dev, "Failed to issue reset\n");
- return ret;
- }
-
- wm8960->set_bias_level(codec, SND_SOC_BIAS_STANDBY);
+ struct wm8960_data *pdata = &wm8960->pdata;
- /* Latch the update bits */
- snd_soc_update_bits(codec, WM8960_LINVOL, 0x100, 0x100);
- snd_soc_update_bits(codec, WM8960_RINVOL, 0x100, 0x100);
- snd_soc_update_bits(codec, WM8960_LADC, 0x100, 0x100);
- snd_soc_update_bits(codec, WM8960_RADC, 0x100, 0x100);
- snd_soc_update_bits(codec, WM8960_LDAC, 0x100, 0x100);
- snd_soc_update_bits(codec, WM8960_RDAC, 0x100, 0x100);
- snd_soc_update_bits(codec, WM8960_LOUT1, 0x100, 0x100);
- snd_soc_update_bits(codec, WM8960_ROUT1, 0x100, 0x100);
- snd_soc_update_bits(codec, WM8960_LOUT2, 0x100, 0x100);
- snd_soc_update_bits(codec, WM8960_ROUT2, 0x100, 0x100);
+ if (pdata->capless)
+ wm8960->set_bias_level = wm8960_set_bias_level_capless;
+ else
+ wm8960->set_bias_level = wm8960_set_bias_level_out3;
snd_soc_add_codec_controls(codec, wm8960_snd_controls,
ARRAY_SIZE(wm8960_snd_controls));
@@ -1000,21 +960,10 @@ static int wm8960_probe(struct snd_soc_codec *codec)
return 0;
}
-/* power down chip */
-static int wm8960_remove(struct snd_soc_codec *codec)
-{
- struct wm8960_priv *wm8960 = snd_soc_codec_get_drvdata(codec);
-
- wm8960->set_bias_level(codec, SND_SOC_BIAS_OFF);
- return 0;
-}
-
static struct snd_soc_codec_driver soc_codec_dev_wm8960 = {
.probe = wm8960_probe,
- .remove = wm8960_remove,
- .suspend = wm8960_suspend,
- .resume = wm8960_resume,
.set_bias_level = wm8960_set_bias_level,
+ .suspend_bias_off = true,
};
static const struct regmap_config wm8960_regmap = {
@@ -1029,6 +978,18 @@ static const struct regmap_config wm8960_regmap = {
.volatile_reg = wm8960_volatile,
};
+static void wm8960_set_pdata_from_of(struct i2c_client *i2c,
+ struct wm8960_data *pdata)
+{
+ const struct device_node *np = i2c->dev.of_node;
+
+ if (of_property_read_bool(np, "wlf,capless"))
+ pdata->capless = true;
+
+ if (of_property_read_bool(np, "wlf,shared-lrclk"))
+ pdata->shared_lrclk = true;
+}
+
static int wm8960_i2c_probe(struct i2c_client *i2c,
const struct i2c_device_id *id)
{
@@ -1045,7 +1006,18 @@ static int wm8960_i2c_probe(struct i2c_client *i2c,
if (IS_ERR(wm8960->regmap))
return PTR_ERR(wm8960->regmap);
- if (pdata && pdata->shared_lrclk) {
+ if (pdata)
+ memcpy(&wm8960->pdata, pdata, sizeof(struct wm8960_data));
+ else if (i2c->dev.of_node)
+ wm8960_set_pdata_from_of(i2c, &wm8960->pdata);
+
+ ret = wm8960_reset(wm8960->regmap);
+ if (ret != 0) {
+ dev_err(&i2c->dev, "Failed to issue reset\n");
+ return ret;
+ }
+
+ if (wm8960->pdata.shared_lrclk) {
ret = regmap_update_bits(wm8960->regmap, WM8960_ADDCTL2,
0x4, 0x4);
if (ret != 0) {
@@ -1055,6 +1027,18 @@ static int wm8960_i2c_probe(struct i2c_client *i2c,
}
}
+ /* Latch the update bits */
+ regmap_update_bits(wm8960->regmap, WM8960_LINVOL, 0x100, 0x100);
+ regmap_update_bits(wm8960->regmap, WM8960_RINVOL, 0x100, 0x100);
+ regmap_update_bits(wm8960->regmap, WM8960_LADC, 0x100, 0x100);
+ regmap_update_bits(wm8960->regmap, WM8960_RADC, 0x100, 0x100);
+ regmap_update_bits(wm8960->regmap, WM8960_LDAC, 0x100, 0x100);
+ regmap_update_bits(wm8960->regmap, WM8960_RDAC, 0x100, 0x100);
+ regmap_update_bits(wm8960->regmap, WM8960_LOUT1, 0x100, 0x100);
+ regmap_update_bits(wm8960->regmap, WM8960_ROUT1, 0x100, 0x100);
+ regmap_update_bits(wm8960->regmap, WM8960_LOUT2, 0x100, 0x100);
+ regmap_update_bits(wm8960->regmap, WM8960_ROUT2, 0x100, 0x100);
+
i2c_set_clientdata(i2c, wm8960);
ret = snd_soc_register_codec(&i2c->dev,
@@ -1075,10 +1059,17 @@ static const struct i2c_device_id wm8960_i2c_id[] = {
};
MODULE_DEVICE_TABLE(i2c, wm8960_i2c_id);
+static const struct of_device_id wm8960_of_match[] = {
+ { .compatible = "wlf,wm8960", },
+ { }
+};
+MODULE_DEVICE_TABLE(of, wm8960_of_match);
+
static struct i2c_driver wm8960_i2c_driver = {
.driver = {
.name = "wm8960",
.owner = THIS_MODULE,
+ .of_match_table = wm8960_of_match,
},
.probe = wm8960_i2c_probe,
.remove = wm8960_i2c_remove,
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