ASoC: Add WM8912 DAC support
The WM8912 is a DAC only device register compatible with the WM8904
CODEC with ADC portions omitted. Support it within the WM8904 driver
based on the configured I2C device name.
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Acked-by: Liam Girdwood <lrg@slimlogic.co.uk>
diff --git a/sound/soc/codecs/wm8904.c b/sound/soc/codecs/wm8904.c
index 80dd8df..593e47d 100644
--- a/sound/soc/codecs/wm8904.c
+++ b/sound/soc/codecs/wm8904.c
@@ -33,6 +33,11 @@
static struct snd_soc_codec *wm8904_codec;
struct snd_soc_codec_device soc_codec_dev_wm8904;
+enum wm8904_type {
+ WM8904,
+ WM8912,
+};
+
#define WM8904_NUM_DCS_CHANNELS 4
#define WM8904_NUM_SUPPLIES 5
@@ -49,6 +54,8 @@
struct snd_soc_codec codec;
u16 reg_cache[WM8904_MAX_REGISTER + 1];
+ enum wm8904_type devtype;
+
struct regulator_bulk_data supplies[WM8904_NUM_SUPPLIES];
struct wm8904_pdata *pdata;
@@ -1411,30 +1418,62 @@
{ "LINER PGA", NULL, "LINER Mux" },
};
+static const struct snd_soc_dapm_route wm8912_intercon[] = {
+ { "HPL PGA", NULL, "DACL" },
+ { "HPR PGA", NULL, "DACR" },
+
+ { "LINEL PGA", NULL, "DACL" },
+ { "LINER PGA", NULL, "DACR" },
+};
+
static int wm8904_add_widgets(struct snd_soc_codec *codec)
{
- snd_soc_add_controls(codec, wm8904_adc_snd_controls,
- ARRAY_SIZE(wm8904_adc_snd_controls));
- snd_soc_add_controls(codec, wm8904_dac_snd_controls,
- ARRAY_SIZE(wm8904_dac_snd_controls));
- snd_soc_add_controls(codec, wm8904_snd_controls,
- ARRAY_SIZE(wm8904_snd_controls));
+ struct wm8904_priv *wm8904 = codec->private_data;
snd_soc_dapm_new_controls(codec, wm8904_core_dapm_widgets,
ARRAY_SIZE(wm8904_core_dapm_widgets));
- snd_soc_dapm_new_controls(codec, wm8904_adc_dapm_widgets,
- ARRAY_SIZE(wm8904_adc_dapm_widgets));
- snd_soc_dapm_new_controls(codec, wm8904_dac_dapm_widgets,
- ARRAY_SIZE(wm8904_dac_dapm_widgets));
- snd_soc_dapm_new_controls(codec, wm8904_dapm_widgets,
- ARRAY_SIZE(wm8904_dapm_widgets));
-
snd_soc_dapm_add_routes(codec, core_intercon,
ARRAY_SIZE(core_intercon));
- snd_soc_dapm_add_routes(codec, adc_intercon, ARRAY_SIZE(adc_intercon));
- snd_soc_dapm_add_routes(codec, dac_intercon, ARRAY_SIZE(dac_intercon));
- snd_soc_dapm_add_routes(codec, wm8904_intercon,
- ARRAY_SIZE(wm8904_intercon));
+
+ switch (wm8904->devtype) {
+ case WM8904:
+ snd_soc_add_controls(codec, wm8904_adc_snd_controls,
+ ARRAY_SIZE(wm8904_adc_snd_controls));
+ snd_soc_add_controls(codec, wm8904_dac_snd_controls,
+ ARRAY_SIZE(wm8904_dac_snd_controls));
+ snd_soc_add_controls(codec, wm8904_snd_controls,
+ ARRAY_SIZE(wm8904_snd_controls));
+
+ snd_soc_dapm_new_controls(codec, wm8904_adc_dapm_widgets,
+ ARRAY_SIZE(wm8904_adc_dapm_widgets));
+ snd_soc_dapm_new_controls(codec, wm8904_dac_dapm_widgets,
+ ARRAY_SIZE(wm8904_dac_dapm_widgets));
+ snd_soc_dapm_new_controls(codec, wm8904_dapm_widgets,
+ ARRAY_SIZE(wm8904_dapm_widgets));
+
+ snd_soc_dapm_add_routes(codec, core_intercon,
+ ARRAY_SIZE(core_intercon));
+ snd_soc_dapm_add_routes(codec, adc_intercon,
+ ARRAY_SIZE(adc_intercon));
+ snd_soc_dapm_add_routes(codec, dac_intercon,
+ ARRAY_SIZE(dac_intercon));
+ snd_soc_dapm_add_routes(codec, wm8904_intercon,
+ ARRAY_SIZE(wm8904_intercon));
+ break;
+
+ case WM8912:
+ snd_soc_add_controls(codec, wm8904_dac_snd_controls,
+ ARRAY_SIZE(wm8904_dac_snd_controls));
+
+ snd_soc_dapm_new_controls(codec, wm8904_dac_dapm_widgets,
+ ARRAY_SIZE(wm8904_dac_dapm_widgets));
+
+ snd_soc_dapm_add_routes(codec, dac_intercon,
+ ARRAY_SIZE(dac_intercon));
+ snd_soc_dapm_add_routes(codec, wm8912_intercon,
+ ARRAY_SIZE(wm8912_intercon));
+ break;
+ }
snd_soc_dapm_new_widgets(codec);
return 0;
@@ -2412,6 +2451,18 @@
codec->cache_sync = 1;
codec->idle_bias_off = 1;
+ switch (wm8904->devtype) {
+ case WM8904:
+ break;
+ case WM8912:
+ memset(&wm8904_dai.capture, 0, sizeof(wm8904_dai.capture));
+ break;
+ default:
+ dev_err(codec->dev, "Unknown device type %d\n",
+ wm8904->devtype);
+ return -EINVAL;
+ }
+
memcpy(codec->reg_cache, wm8904_reg, sizeof(wm8904_reg));
ret = snd_soc_codec_set_cache_io(codec, 8, 16, control);
@@ -2542,6 +2593,8 @@
codec = &wm8904->codec;
codec->hw_write = (hw_write_t)i2c_master_send;
+ wm8904->devtype = id->driver_data;
+
i2c_set_clientdata(i2c, wm8904);
codec->control_data = i2c;
wm8904->pdata = i2c->dev.platform_data;
@@ -2559,7 +2612,8 @@
}
static const struct i2c_device_id wm8904_i2c_id[] = {
- { "wm8904", 0 },
+ { "wm8904", WM8904 },
+ { "wm8912", WM8912 },
{ }
};
MODULE_DEVICE_TABLE(i2c, wm8904_i2c_id);