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Diffstat (limited to 'sound/soc/codecs/twl4030.c')
-rw-r--r--sound/soc/codecs/twl4030.c452
1 files changed, 222 insertions, 230 deletions
diff --git a/sound/soc/codecs/twl4030.c b/sound/soc/codecs/twl4030.c
index 4df7c6c61c7..5f1681f6ca7 100644
--- a/sound/soc/codecs/twl4030.c
+++ b/sound/soc/codecs/twl4030.c
@@ -120,9 +120,10 @@ static const u8 twl4030_reg[TWL4030_CACHEREGNUM] = {
/* codec private data */
struct twl4030_priv {
- unsigned int bypass_state;
+ struct snd_soc_codec codec;
+
unsigned int codec_powered;
- unsigned int codec_muted;
+ unsigned int apll_enabled;
struct snd_pcm_substream *master_substream;
struct snd_pcm_substream *slave_substream;
@@ -183,19 +184,20 @@ static int twl4030_write(struct snd_soc_codec *codec,
static void twl4030_codec_enable(struct snd_soc_codec *codec, int enable)
{
struct twl4030_priv *twl4030 = codec->private_data;
- u8 mode;
+ int mode;
if (enable == twl4030->codec_powered)
return;
- mode = twl4030_read_reg_cache(codec, TWL4030_REG_CODEC_MODE);
if (enable)
- mode |= TWL4030_CODECPDZ;
+ mode = twl4030_codec_enable_resource(TWL4030_CODEC_RES_POWER);
else
- mode &= ~TWL4030_CODECPDZ;
+ mode = twl4030_codec_disable_resource(TWL4030_CODEC_RES_POWER);
- twl4030_write(codec, TWL4030_REG_CODEC_MODE, mode);
- twl4030->codec_powered = enable;
+ if (mode >= 0) {
+ twl4030_write_reg_cache(codec, TWL4030_REG_CODEC_MODE, mode);
+ twl4030->codec_powered = enable;
+ }
/* REVISIT: this delay is present in TI sample drivers */
/* but there seems to be no TRM requirement for it */
@@ -212,31 +214,30 @@ static void twl4030_init_chip(struct snd_soc_codec *codec)
/* set all audio section registers to reasonable defaults */
for (i = TWL4030_REG_OPTION; i <= TWL4030_REG_MISC_SET_2; i++)
- twl4030_write(codec, i, cache[i]);
+ if (i != TWL4030_REG_APLL_CTL)
+ twl4030_write(codec, i, cache[i]);
}
-static void twl4030_codec_mute(struct snd_soc_codec *codec, int mute)
+static void twl4030_apll_enable(struct snd_soc_codec *codec, int enable)
{
struct twl4030_priv *twl4030 = codec->private_data;
- u8 reg_val;
+ int status;
- if (mute == twl4030->codec_muted)
+ if (enable == twl4030->apll_enabled)
return;
- if (mute) {
- /* Disable PLL */
- reg_val = twl4030_read_reg_cache(codec, TWL4030_REG_APLL_CTL);
- reg_val &= ~TWL4030_APLL_EN;
- twl4030_write(codec, TWL4030_REG_APLL_CTL, reg_val);
- } else {
+ if (enable)
/* Enable PLL */
- reg_val = twl4030_read_reg_cache(codec, TWL4030_REG_APLL_CTL);
- reg_val |= TWL4030_APLL_EN;
- twl4030_write(codec, TWL4030_REG_APLL_CTL, reg_val);
- }
+ status = twl4030_codec_enable_resource(TWL4030_CODEC_RES_APLL);
+ else
+ /* Disable PLL */
+ status = twl4030_codec_disable_resource(TWL4030_CODEC_RES_APLL);
+
+ if (status >= 0)
+ twl4030_write_reg_cache(codec, TWL4030_REG_APLL_CTL, status);
- twl4030->codec_muted = mute;
+ twl4030->apll_enabled = enable;
}
static void twl4030_power_up(struct snd_soc_codec *codec)
@@ -613,6 +614,27 @@ static int handsfreerpga_event(struct snd_soc_dapm_widget *w,
return 0;
}
+static int vibramux_event(struct snd_soc_dapm_widget *w,
+ struct snd_kcontrol *kcontrol, int event)
+{
+ twl4030_write(w->codec, TWL4030_REG_VIBRA_SET, 0xff);
+ return 0;
+}
+
+static int apll_event(struct snd_soc_dapm_widget *w,
+ struct snd_kcontrol *kcontrol, int event)
+{
+ switch (event) {
+ case SND_SOC_DAPM_PRE_PMU:
+ twl4030_apll_enable(w->codec, 1);
+ break;
+ case SND_SOC_DAPM_POST_PMD:
+ twl4030_apll_enable(w->codec, 0);
+ break;
+ }
+ return 0;
+}
+
static void headset_ramp(struct snd_soc_codec *codec, int ramp)
{
struct snd_soc_device *socdev = codec->socdev;
@@ -724,67 +746,6 @@ static int headsetrpga_event(struct snd_soc_dapm_widget *w,
return 0;
}
-static int bypass_event(struct snd_soc_dapm_widget *w,
- struct snd_kcontrol *kcontrol, int event)
-{
- struct soc_mixer_control *m =
- (struct soc_mixer_control *)w->kcontrols->private_value;
- struct twl4030_priv *twl4030 = w->codec->private_data;
- unsigned char reg, misc;
-
- reg = twl4030_read_reg_cache(w->codec, m->reg);
-
- /*
- * bypass_state[0:3] - analog HiFi bypass
- * bypass_state[4] - analog voice bypass
- * bypass_state[5] - digital voice bypass
- * bypass_state[6:7] - digital HiFi bypass
- */
- if (m->reg == TWL4030_REG_VSTPGA) {
- /* Voice digital bypass */
- if (reg)
- twl4030->bypass_state |= (1 << 5);
- else
- twl4030->bypass_state &= ~(1 << 5);
- } else if (m->reg <= TWL4030_REG_ARXR2_APGA_CTL) {
- /* Analog bypass */
- if (reg & (1 << m->shift))
- twl4030->bypass_state |=
- (1 << (m->reg - TWL4030_REG_ARXL1_APGA_CTL));
- else
- twl4030->bypass_state &=
- ~(1 << (m->reg - TWL4030_REG_ARXL1_APGA_CTL));
- } else if (m->reg == TWL4030_REG_VDL_APGA_CTL) {
- /* Analog voice bypass */
- if (reg & (1 << m->shift))
- twl4030->bypass_state |= (1 << 4);
- else
- twl4030->bypass_state &= ~(1 << 4);
- } else {
- /* Digital bypass */
- if (reg & (0x7 << m->shift))
- twl4030->bypass_state |= (1 << (m->shift ? 7 : 6));
- else
- twl4030->bypass_state &= ~(1 << (m->shift ? 7 : 6));
- }
-
- /* Enable master analog loopback mode if any analog switch is enabled*/
- misc = twl4030_read_reg_cache(w->codec, TWL4030_REG_MISC_SET_1);
- if (twl4030->bypass_state & 0x1F)
- misc |= TWL4030_FMLOOP_EN;
- else
- misc &= ~TWL4030_FMLOOP_EN;
- twl4030_write(w->codec, TWL4030_REG_MISC_SET_1, misc);
-
- if (w->codec->bias_level == SND_SOC_BIAS_STANDBY) {
- if (twl4030->bypass_state)
- twl4030_codec_mute(w->codec, 0);
- else
- twl4030_codec_mute(w->codec, 1);
- }
- return 0;
-}
-
/*
* Some of the gain controls in TWL (mostly those which are associated with
* the outputs) are implemented in an interesting way:
@@ -1192,32 +1153,28 @@ static const struct snd_soc_dapm_widget twl4030_dapm_widgets[] = {
SND_SOC_NOPM, 0, 0),
/* Analog bypasses */
- SND_SOC_DAPM_SWITCH_E("Right1 Analog Loopback", SND_SOC_NOPM, 0, 0,
- &twl4030_dapm_abypassr1_control, bypass_event,
- SND_SOC_DAPM_POST_REG),
- SND_SOC_DAPM_SWITCH_E("Left1 Analog Loopback", SND_SOC_NOPM, 0, 0,
- &twl4030_dapm_abypassl1_control,
- bypass_event, SND_SOC_DAPM_POST_REG),
- SND_SOC_DAPM_SWITCH_E("Right2 Analog Loopback", SND_SOC_NOPM, 0, 0,
- &twl4030_dapm_abypassr2_control,
- bypass_event, SND_SOC_DAPM_POST_REG),
- SND_SOC_DAPM_SWITCH_E("Left2 Analog Loopback", SND_SOC_NOPM, 0, 0,
- &twl4030_dapm_abypassl2_control,
- bypass_event, SND_SOC_DAPM_POST_REG),
- SND_SOC_DAPM_SWITCH_E("Voice Analog Loopback", SND_SOC_NOPM, 0, 0,
- &twl4030_dapm_abypassv_control,
- bypass_event, SND_SOC_DAPM_POST_REG),
+ SND_SOC_DAPM_SWITCH("Right1 Analog Loopback", SND_SOC_NOPM, 0, 0,
+ &twl4030_dapm_abypassr1_control),
+ SND_SOC_DAPM_SWITCH("Left1 Analog Loopback", SND_SOC_NOPM, 0, 0,
+ &twl4030_dapm_abypassl1_control),
+ SND_SOC_DAPM_SWITCH("Right2 Analog Loopback", SND_SOC_NOPM, 0, 0,
+ &twl4030_dapm_abypassr2_control),
+ SND_SOC_DAPM_SWITCH("Left2 Analog Loopback", SND_SOC_NOPM, 0, 0,
+ &twl4030_dapm_abypassl2_control),
+ SND_SOC_DAPM_SWITCH("Voice Analog Loopback", SND_SOC_NOPM, 0, 0,
+ &twl4030_dapm_abypassv_control),
+
+ /* Master analog loopback switch */
+ SND_SOC_DAPM_SUPPLY("FM Loop Enable", TWL4030_REG_MISC_SET_1, 5, 0,
+ NULL, 0),
/* Digital bypasses */
- SND_SOC_DAPM_SWITCH_E("Left Digital Loopback", SND_SOC_NOPM, 0, 0,
- &twl4030_dapm_dbypassl_control, bypass_event,
- SND_SOC_DAPM_POST_REG),
- SND_SOC_DAPM_SWITCH_E("Right Digital Loopback", SND_SOC_NOPM, 0, 0,
- &twl4030_dapm_dbypassr_control, bypass_event,
- SND_SOC_DAPM_POST_REG),
- SND_SOC_DAPM_SWITCH_E("Voice Digital Loopback", SND_SOC_NOPM, 0, 0,
- &twl4030_dapm_dbypassv_control, bypass_event,
- SND_SOC_DAPM_POST_REG),
+ SND_SOC_DAPM_SWITCH("Left Digital Loopback", SND_SOC_NOPM, 0, 0,
+ &twl4030_dapm_dbypassl_control),
+ SND_SOC_DAPM_SWITCH("Right Digital Loopback", SND_SOC_NOPM, 0, 0,
+ &twl4030_dapm_dbypassr_control),
+ SND_SOC_DAPM_SWITCH("Voice Digital Loopback", SND_SOC_NOPM, 0, 0,
+ &twl4030_dapm_dbypassv_control),
/* Digital mixers, power control for the physical DACs */
SND_SOC_DAPM_MIXER("Digital R1 Playback Mixer",
@@ -1243,6 +1200,9 @@ static const struct snd_soc_dapm_widget twl4030_dapm_widgets[] = {
SND_SOC_DAPM_MIXER("Analog Voice Playback Mixer",
TWL4030_REG_VDL_APGA_CTL, 0, 0, NULL, 0),
+ SND_SOC_DAPM_SUPPLY("APLL Enable", SND_SOC_NOPM, 0, 0, apll_event,
+ SND_SOC_DAPM_PRE_PMU|SND_SOC_DAPM_POST_PMD),
+
/* Output MIXER controls */
/* Earpiece */
SND_SOC_DAPM_MIXER("Earpiece Mixer", SND_SOC_NOPM, 0, 0,
@@ -1308,8 +1268,9 @@ static const struct snd_soc_dapm_widget twl4030_dapm_widgets[] = {
0, 0, NULL, 0, handsfreerpga_event,
SND_SOC_DAPM_POST_PMU|SND_SOC_DAPM_POST_PMD),
/* Vibra */
- SND_SOC_DAPM_MUX("Vibra Mux", TWL4030_REG_VIBRA_CTL, 0, 0,
- &twl4030_dapm_vibra_control),
+ SND_SOC_DAPM_MUX_E("Vibra Mux", TWL4030_REG_VIBRA_CTL, 0, 0,
+ &twl4030_dapm_vibra_control, vibramux_event,
+ SND_SOC_DAPM_PRE_PMU),
SND_SOC_DAPM_MUX("Vibra Route", SND_SOC_NOPM, 0, 0,
&twl4030_dapm_vibrapath_control),
@@ -1369,6 +1330,13 @@ static const struct snd_soc_dapm_route intercon[] = {
{"Digital R2 Playback Mixer", NULL, "DAC Right2"},
{"Digital Voice Playback Mixer", NULL, "DAC Voice"},
+ /* Supply for the digital part (APLL) */
+ {"Digital R1 Playback Mixer", NULL, "APLL Enable"},
+ {"Digital L1 Playback Mixer", NULL, "APLL Enable"},
+ {"Digital R2 Playback Mixer", NULL, "APLL Enable"},
+ {"Digital L2 Playback Mixer", NULL, "APLL Enable"},
+ {"Digital Voice Playback Mixer", NULL, "APLL Enable"},
+
{"Analog L1 Playback Mixer", NULL, "Digital L1 Playback Mixer"},
{"Analog R1 Playback Mixer", NULL, "Digital R1 Playback Mixer"},
{"Analog L2 Playback Mixer", NULL, "Digital L2 Playback Mixer"},
@@ -1482,6 +1450,11 @@ static const struct snd_soc_dapm_route intercon[] = {
{"ADC Virtual Left2", NULL, "TX2 Capture Route"},
{"ADC Virtual Right2", NULL, "TX2 Capture Route"},
+ {"ADC Virtual Left1", NULL, "APLL Enable"},
+ {"ADC Virtual Right1", NULL, "APLL Enable"},
+ {"ADC Virtual Left2", NULL, "APLL Enable"},
+ {"ADC Virtual Right2", NULL, "APLL Enable"},
+
/* Analog bypass routes */
{"Right1 Analog Loopback", "Switch", "Analog Right"},
{"Left1 Analog Loopback", "Switch", "Analog Left"},
@@ -1489,6 +1462,13 @@ static const struct snd_soc_dapm_route intercon[] = {
{"Left2 Analog Loopback", "Switch", "Analog Left"},
{"Voice Analog Loopback", "Switch", "Analog Left"},
+ /* Supply for the Analog loopbacks */
+ {"Right1 Analog Loopback", NULL, "FM Loop Enable"},
+ {"Left1 Analog Loopback", NULL, "FM Loop Enable"},
+ {"Right2 Analog Loopback", NULL, "FM Loop Enable"},
+ {"Left2 Analog Loopback", NULL, "FM Loop Enable"},
+ {"Voice Analog Loopback", NULL, "FM Loop Enable"},
+
{"Analog R1 Playback Mixer", NULL, "Right1 Analog Loopback"},
{"Analog L1 Playback Mixer", NULL, "Left1 Analog Loopback"},
{"Analog R2 Playback Mixer", NULL, "Right2 Analog Loopback"},
@@ -1513,32 +1493,20 @@ static int twl4030_add_widgets(struct snd_soc_codec *codec)
snd_soc_dapm_add_routes(codec, intercon, ARRAY_SIZE(intercon));
- snd_soc_dapm_new_widgets(codec);
return 0;
}
static int twl4030_set_bias_level(struct snd_soc_codec *codec,
enum snd_soc_bias_level level)
{
- struct twl4030_priv *twl4030 = codec->private_data;
-
switch (level) {
case SND_SOC_BIAS_ON:
- twl4030_codec_mute(codec, 0);
break;
case SND_SOC_BIAS_PREPARE:
- twl4030_power_up(codec);
- if (twl4030->bypass_state)
- twl4030_codec_mute(codec, 0);
- else
- twl4030_codec_mute(codec, 1);
break;
case SND_SOC_BIAS_STANDBY:
- twl4030_power_up(codec);
- if (twl4030->bypass_state)
- twl4030_codec_mute(codec, 0);
- else
- twl4030_codec_mute(codec, 1);
+ if (codec->bias_level == SND_SOC_BIAS_OFF)
+ twl4030_power_up(codec);
break;
case SND_SOC_BIAS_OFF:
twl4030_power_down(codec);
@@ -1785,29 +1753,23 @@ static int twl4030_set_dai_sysclk(struct snd_soc_dai *codec_dai,
{
struct snd_soc_codec *codec = codec_dai->codec;
struct twl4030_priv *twl4030 = codec->private_data;
- u8 infreq;
switch (freq) {
case 19200000:
- infreq = TWL4030_APLL_INFREQ_19200KHZ;
- twl4030->sysclk = 19200;
- break;
case 26000000:
- infreq = TWL4030_APLL_INFREQ_26000KHZ;
- twl4030->sysclk = 26000;
- break;
case 38400000:
- infreq = TWL4030_APLL_INFREQ_38400KHZ;
- twl4030->sysclk = 38400;
break;
default:
- printk(KERN_ERR "TWL4030 set sysclk: unknown rate %d\n",
- freq);
+ dev_err(codec->dev, "Unsupported APLL mclk: %u\n", freq);
return -EINVAL;
}
- infreq |= TWL4030_APLL_EN;
- twl4030_write(codec, TWL4030_REG_APLL_CTL, infreq);
+ if ((freq / 1000) != twl4030->sysclk) {
+ dev_err(codec->dev,
+ "Mismatch in APLL mclk: %u (configured: %u)\n",
+ freq, twl4030->sysclk * 1000);
+ return -EINVAL;
+ }
return 0;
}
@@ -1905,18 +1867,16 @@ static int twl4030_voice_startup(struct snd_pcm_substream *substream,
struct snd_soc_pcm_runtime *rtd = substream->private_data;
struct snd_soc_device *socdev = rtd->socdev;
struct snd_soc_codec *codec = socdev->card->codec;
- u8 infreq;
+ struct twl4030_priv *twl4030 = codec->private_data;
u8 mode;
/* If the system master clock is not 26MHz, the voice PCM interface is
* not avilable.
*/
- infreq = twl4030_read_reg_cache(codec, TWL4030_REG_APLL_CTL)
- & TWL4030_APLL_INFREQ;
-
- if (infreq != TWL4030_APLL_INFREQ_26000KHZ) {
- printk(KERN_ERR "TWL4030 voice startup: "
- "MCLK is not 26MHz, call set_sysclk() on init\n");
+ if (twl4030->sysclk != 26000) {
+ dev_err(codec->dev, "The board is configured for %u Hz, while"
+ "the Voice interface needs 26MHz APLL mclk\n",
+ twl4030->sysclk * 1000);
return -EINVAL;
}
@@ -1989,21 +1949,19 @@ static int twl4030_voice_set_dai_sysclk(struct snd_soc_dai *codec_dai,
int clk_id, unsigned int freq, int dir)
{
struct snd_soc_codec *codec = codec_dai->codec;
- u8 infreq;
+ struct twl4030_priv *twl4030 = codec->private_data;
- switch (freq) {
- case 26000000:
- infreq = TWL4030_APLL_INFREQ_26000KHZ;
- break;
- default:
- printk(KERN_ERR "TWL4030 voice set sysclk: unknown rate %d\n",
- freq);
+ if (freq != 26000000) {
+ dev_err(codec->dev, "Unsupported APLL mclk: %u, the Voice"
+ "interface needs 26MHz APLL mclk\n", freq);
+ return -EINVAL;
+ }
+ if ((freq / 1000) != twl4030->sysclk) {
+ dev_err(codec->dev,
+ "Mismatch in APLL mclk: %u (configured: %u)\n",
+ freq, twl4030->sysclk * 1000);
return -EINVAL;
}
-
- infreq |= TWL4030_APLL_EN;
- twl4030_write(codec, TWL4030_REG_APLL_CTL, infreq);
-
return 0;
}
@@ -2121,7 +2079,7 @@ struct snd_soc_dai twl4030_dai[] = {
};
EXPORT_SYMBOL_GPL(twl4030_dai);
-static int twl4030_suspend(struct platform_device *pdev, pm_message_t state)
+static int twl4030_soc_suspend(struct platform_device *pdev, pm_message_t state)
{
struct snd_soc_device *socdev = platform_get_drvdata(pdev);
struct snd_soc_codec *codec = socdev->card->codec;
@@ -2131,7 +2089,7 @@ static int twl4030_suspend(struct platform_device *pdev, pm_message_t state)
return 0;
}
-static int twl4030_resume(struct platform_device *pdev)
+static int twl4030_soc_resume(struct platform_device *pdev)
{
struct snd_soc_device *socdev = platform_get_drvdata(pdev);
struct snd_soc_codec *codec = socdev->card->codec;
@@ -2141,147 +2099,181 @@ static int twl4030_resume(struct platform_device *pdev)
return 0;
}
-/*
- * initialize the driver
- * register the mixer and dsp interfaces with the kernel
- */
+static struct snd_soc_codec *twl4030_codec;
-static int twl4030_init(struct snd_soc_device *socdev)
+static int twl4030_soc_probe(struct platform_device *pdev)
{
- struct snd_soc_codec *codec = socdev->card->codec;
+ struct snd_soc_device *socdev = platform_get_drvdata(pdev);
struct twl4030_setup_data *setup = socdev->codec_data;
- struct twl4030_priv *twl4030 = codec->private_data;
- int ret = 0;
+ struct snd_soc_codec *codec;
+ struct twl4030_priv *twl4030;
+ int ret;
- printk(KERN_INFO "TWL4030 Audio Codec init \n");
+ BUG_ON(!twl4030_codec);
- codec->name = "twl4030";
- codec->owner = THIS_MODULE;
- codec->read = twl4030_read_reg_cache;
- codec->write = twl4030_write;
- codec->set_bias_level = twl4030_set_bias_level;
- codec->dai = twl4030_dai;
- codec->num_dai = ARRAY_SIZE(twl4030_dai),
- codec->reg_cache_size = sizeof(twl4030_reg);
- codec->reg_cache = kmemdup(twl4030_reg, sizeof(twl4030_reg),
- GFP_KERNEL);
- if (codec->reg_cache == NULL)
- return -ENOMEM;
+ codec = twl4030_codec;
+ twl4030 = codec->private_data;
+ socdev->card->codec = codec;
/* Configuration for headset ramp delay from setup data */
if (setup) {
unsigned char hs_pop;
- if (setup->sysclk)
- twl4030->sysclk = setup->sysclk;
- else
- twl4030->sysclk = 26000;
+ if (setup->sysclk != twl4030->sysclk)
+ dev_warn(&pdev->dev,
+ "Mismatch in APLL mclk: %u (configured: %u)\n",
+ setup->sysclk, twl4030->sysclk);
hs_pop = twl4030_read_reg_cache(codec, TWL4030_REG_HS_POPN_SET);
hs_pop &= ~TWL4030_RAMP_DELAY;
hs_pop |= (setup->ramp_delay_value << 2);
twl4030_write_reg_cache(codec, TWL4030_REG_HS_POPN_SET, hs_pop);
- } else {
- twl4030->sysclk = 26000;
}
/* register pcms */
ret = snd_soc_new_pcms(socdev, SNDRV_DEFAULT_IDX1, SNDRV_DEFAULT_STR1);
if (ret < 0) {
- printk(KERN_ERR "twl4030: failed to create pcms\n");
- goto pcm_err;
+ dev_err(&pdev->dev, "failed to create pcms\n");
+ return ret;
}
- twl4030_init_chip(codec);
-
- /* power on device */
- twl4030_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
-
snd_soc_add_controls(codec, twl4030_snd_controls,
ARRAY_SIZE(twl4030_snd_controls));
twl4030_add_widgets(codec);
- ret = snd_soc_init_card(socdev);
- if (ret < 0) {
- printk(KERN_ERR "twl4030: failed to register card\n");
- goto card_err;
- }
+ return 0;
+}
- return ret;
+static int twl4030_soc_remove(struct platform_device *pdev)
+{
+ struct snd_soc_device *socdev = platform_get_drvdata(pdev);
+ struct snd_soc_codec *codec = socdev->card->codec;
-card_err:
+ twl4030_set_bias_level(codec, SND_SOC_BIAS_OFF);
snd_soc_free_pcms(socdev);
snd_soc_dapm_free(socdev);
-pcm_err:
- kfree(codec->reg_cache);
- return ret;
-}
+ kfree(codec->private_data);
+ kfree(codec);
-static struct snd_soc_device *twl4030_socdev;
+ return 0;
+}
-static int twl4030_probe(struct platform_device *pdev)
+static int __devinit twl4030_codec_probe(struct platform_device *pdev)
{
- struct snd_soc_device *socdev = platform_get_drvdata(pdev);
+ struct twl4030_codec_audio_data *pdata = pdev->dev.platform_data;
struct snd_soc_codec *codec;
struct twl4030_priv *twl4030;
+ int ret;
- codec = kzalloc(sizeof(struct snd_soc_codec), GFP_KERNEL);
- if (codec == NULL)
- return -ENOMEM;
+ if (!pdata) {
+ dev_err(&pdev->dev, "platform_data is missing\n");
+ return -EINVAL;
+ }
twl4030 = kzalloc(sizeof(struct twl4030_priv), GFP_KERNEL);
if (twl4030 == NULL) {
- kfree(codec);
+ dev_err(&pdev->dev, "Can not allocate memroy\n");
return -ENOMEM;
}
+ codec = &twl4030->codec;
codec->private_data = twl4030;
- socdev->card->codec = codec;
+ codec->dev = &pdev->dev;
+ twl4030_dai[0].dev = &pdev->dev;
+ twl4030_dai[1].dev = &pdev->dev;
+
mutex_init(&codec->mutex);
INIT_LIST_HEAD(&codec->dapm_widgets);
INIT_LIST_HEAD(&codec->dapm_paths);
- twl4030_socdev = socdev;
- twl4030_init(socdev);
+ codec->name = "twl4030";
+ codec->owner = THIS_MODULE;
+ codec->read = twl4030_read_reg_cache;
+ codec->write = twl4030_write;
+ codec->set_bias_level = twl4030_set_bias_level;
+ codec->dai = twl4030_dai;
+ codec->num_dai = ARRAY_SIZE(twl4030_dai),
+ codec->reg_cache_size = sizeof(twl4030_reg);
+ codec->reg_cache = kmemdup(twl4030_reg, sizeof(twl4030_reg),
+ GFP_KERNEL);
+ if (codec->reg_cache == NULL) {
+ ret = -ENOMEM;
+ goto error_cache;
+ }
+
+ platform_set_drvdata(pdev, twl4030);
+ twl4030_codec = codec;
+
+ /* Set the defaults, and power up the codec */
+ twl4030->sysclk = twl4030_codec_get_mclk() / 1000;
+ twl4030_init_chip(codec);
+ codec->bias_level = SND_SOC_BIAS_OFF;
+ twl4030_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
+
+ ret = snd_soc_register_codec(codec);
+ if (ret != 0) {
+ dev_err(codec->dev, "Failed to register codec: %d\n", ret);
+ goto error_codec;
+ }
+
+ ret = snd_soc_register_dais(&twl4030_dai[0], ARRAY_SIZE(twl4030_dai));
+ if (ret != 0) {
+ dev_err(codec->dev, "Failed to register DAIs: %d\n", ret);
+ snd_soc_unregister_codec(codec);
+ goto error_codec;
+ }
return 0;
+
+error_codec:
+ twl4030_power_down(codec);
+ kfree(codec->reg_cache);
+error_cache:
+ kfree(twl4030);
+ return ret;
}
-static int twl4030_remove(struct platform_device *pdev)
+static int __devexit twl4030_codec_remove(struct platform_device *pdev)
{
- struct snd_soc_device *socdev = platform_get_drvdata(pdev);
- struct snd_soc_codec *codec = socdev->card->codec;
+ struct twl4030_priv *twl4030 = platform_get_drvdata(pdev);
- printk(KERN_INFO "TWL4030 Audio Codec remove\n");
- twl4030_set_bias_level(codec, SND_SOC_BIAS_OFF);
- snd_soc_free_pcms(socdev);
- snd_soc_dapm_free(socdev);
- kfree(codec->private_data);
- kfree(codec);
+ kfree(twl4030);
+ twl4030_codec = NULL;
return 0;
}
-struct snd_soc_codec_device soc_codec_dev_twl4030 = {
- .probe = twl4030_probe,
- .remove = twl4030_remove,
- .suspend = twl4030_suspend,
- .resume = twl4030_resume,
+MODULE_ALIAS("platform:twl4030_codec_audio");
+
+static struct platform_driver twl4030_codec_driver = {
+ .probe = twl4030_codec_probe,
+ .remove = __devexit_p(twl4030_codec_remove),
+ .driver = {
+ .name = "twl4030_codec_audio",
+ .owner = THIS_MODULE,
+ },
};
-EXPORT_SYMBOL_GPL(soc_codec_dev_twl4030);
static int __init twl4030_modinit(void)
{
- return snd_soc_register_dais(&twl4030_dai[0], ARRAY_SIZE(twl4030_dai));
+ return platform_driver_register(&twl4030_codec_driver);
}
module_init(twl4030_modinit);
static void __exit twl4030_exit(void)
{
- snd_soc_unregister_dais(&twl4030_dai[0], ARRAY_SIZE(twl4030_dai));
+ platform_driver_unregister(&twl4030_codec_driver);
}
module_exit(twl4030_exit);
+struct snd_soc_codec_device soc_codec_dev_twl4030 = {
+ .probe = twl4030_soc_probe,
+ .remove = twl4030_soc_remove,
+ .suspend = twl4030_soc_suspend,
+ .resume = twl4030_soc_resume,
+};
+EXPORT_SYMBOL_GPL(soc_codec_dev_twl4030);
+
MODULE_DESCRIPTION("ASoC TWL4030 codec driver");
MODULE_AUTHOR("Steve Sakoman");
MODULE_LICENSE("GPL");