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authorLinus Torvalds <torvalds@linux-foundation.org>2010-03-01 08:58:44 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2010-03-01 08:58:44 -0800
commit524df55725217b13d5a232fb5badb5846418ea0e (patch)
treec041613577ac7e68737cfd8af16a37d1ed37e6af /sound/soc/codecs/tpa6130a2.c
parent0f4533979473a456a8adb3869365e12c7a99cf65 (diff)
parent6679ee1870f7ccdd48e2e5c57919240b8f19a6dc (diff)
downloadop-kernel-dev-524df55725217b13d5a232fb5badb5846418ea0e.zip
op-kernel-dev-524df55725217b13d5a232fb5badb5846418ea0e.tar.gz
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6: (252 commits) ASoC: Check progress when reporting periods from i.MX FIQ handler ASoC: Remove a unused variables from i.MX FIQ runtime data ALSA: hda - Add/fix ALC269 FSC and Quanta models ALSA: hda - Add ALC670 codec support OMAP4: PMIC: Add support for twl6030 codec ALSA: hda - remove unnecessary msleep on power state transitions usb/gadget/{f_audio,gmidi}.c: follow recent changes in audio.h ASoC: fsi: Modify over/under run error settlement ASoC: OMAP4: Add McPDM platform driver ASoC: OMAP4: Add support for McPDM ASoC: OMAP: data_type and sync_mode configurable in audio dma ALSA: hda - Add missing description in HD-Audio-Models.txt ALSA: add support for Macbook Air 2,1 internal speaker ALSA: usbaudio: consolidate header files ALSA: usbmixer: bail out early when parsing audio class v2 descriptors ALSA: usbaudio: implement basic set of class v2.0 parser ALSA: usbaudio: introduce new types for audio class v2 ALSA: usbaudio: parse USB descriptors with structs ALSA: hda - enable snoop for Intel Cougar Point ALSA: hda - Remove identical definitions for macmini3 model ...
Diffstat (limited to 'sound/soc/codecs/tpa6130a2.c')
-rw-r--r--sound/soc/codecs/tpa6130a2.c115
1 files changed, 91 insertions, 24 deletions
diff --git a/sound/soc/codecs/tpa6130a2.c b/sound/soc/codecs/tpa6130a2.c
index 6b650c1..958d49c 100644
--- a/sound/soc/codecs/tpa6130a2.c
+++ b/sound/soc/codecs/tpa6130a2.c
@@ -25,6 +25,7 @@
#include <linux/device.h>
#include <linux/i2c.h>
#include <linux/gpio.h>
+#include <linux/regulator/consumer.h>
#include <sound/tpa6130a2-plat.h>
#include <sound/soc.h>
#include <sound/soc-dapm.h>
@@ -34,10 +35,22 @@
static struct i2c_client *tpa6130a2_client;
+#define TPA6130A2_NUM_SUPPLIES 2
+static const char *tpa6130a2_supply_names[TPA6130A2_NUM_SUPPLIES] = {
+ "CPVSS",
+ "Vdd",
+};
+
+static const char *tpa6140a2_supply_names[TPA6130A2_NUM_SUPPLIES] = {
+ "HPVdd",
+ "AVdd",
+};
+
/* This struct is used to save the context */
struct tpa6130a2_data {
struct mutex mutex;
unsigned char regs[TPA6130A2_CACHEREGNUM];
+ struct regulator_bulk_data supplies[TPA6130A2_NUM_SUPPLIES];
int power_gpio;
unsigned char power_state;
};
@@ -106,10 +119,11 @@ static void tpa6130a2_initialize(void)
tpa6130a2_i2c_write(i, data->regs[i]);
}
-static void tpa6130a2_power(int power)
+static int tpa6130a2_power(int power)
{
struct tpa6130a2_data *data;
u8 val;
+ int ret;
BUG_ON(tpa6130a2_client == NULL);
data = i2c_get_clientdata(tpa6130a2_client);
@@ -117,11 +131,20 @@ static void tpa6130a2_power(int power)
mutex_lock(&data->mutex);
if (power) {
/* Power on */
- if (data->power_gpio >= 0) {
+ if (data->power_gpio >= 0)
gpio_set_value(data->power_gpio, 1);
- data->power_state = 1;
- tpa6130a2_initialize();
+
+ ret = regulator_bulk_enable(ARRAY_SIZE(data->supplies),
+ data->supplies);
+ if (ret != 0) {
+ dev_err(&tpa6130a2_client->dev,
+ "Failed to enable supplies: %d\n", ret);
+ goto exit;
}
+
+ data->power_state = 1;
+ tpa6130a2_initialize();
+
/* Clear SWS */
val = tpa6130a2_read(TPA6130A2_REG_CONTROL);
val &= ~TPA6130A2_SWS;
@@ -131,13 +154,25 @@ static void tpa6130a2_power(int power)
val = tpa6130a2_read(TPA6130A2_REG_CONTROL);
val |= TPA6130A2_SWS;
tpa6130a2_i2c_write(TPA6130A2_REG_CONTROL, val);
+
/* Power off */
- if (data->power_gpio >= 0) {
+ if (data->power_gpio >= 0)
gpio_set_value(data->power_gpio, 0);
- data->power_state = 0;
+
+ ret = regulator_bulk_disable(ARRAY_SIZE(data->supplies),
+ data->supplies);
+ if (ret != 0) {
+ dev_err(&tpa6130a2_client->dev,
+ "Failed to disable supplies: %d\n", ret);
+ goto exit;
}
+
+ data->power_state = 0;
}
+
+exit:
mutex_unlock(&data->mutex);
+ return ret;
}
static int tpa6130a2_get_reg(struct snd_kcontrol *kcontrol,
@@ -237,12 +272,8 @@ static const struct snd_kcontrol_new tpa6130a2_controls[] = {
*/
static void tpa6130a2_channel_enable(u8 channel, int enable)
{
- struct tpa6130a2_data *data;
u8 val;
- BUG_ON(tpa6130a2_client == NULL);
- data = i2c_get_clientdata(tpa6130a2_client);
-
if (enable) {
/* Enable channel */
/* Enable amplifier */
@@ -299,15 +330,17 @@ static int tpa6130a2_right_event(struct snd_soc_dapm_widget *w,
static int tpa6130a2_supply_event(struct snd_soc_dapm_widget *w,
struct snd_kcontrol *kcontrol, int event)
{
+ int ret = 0;
+
switch (event) {
case SND_SOC_DAPM_POST_PMU:
- tpa6130a2_power(1);
+ ret = tpa6130a2_power(1);
break;
case SND_SOC_DAPM_POST_PMD:
- tpa6130a2_power(0);
+ ret = tpa6130a2_power(0);
break;
}
- return 0;
+ return ret;
}
static const struct snd_soc_dapm_widget tpa6130a2_dapm_widgets[] = {
@@ -346,13 +379,13 @@ int tpa6130a2_add_controls(struct snd_soc_codec *codec)
}
EXPORT_SYMBOL_GPL(tpa6130a2_add_controls);
-static int tpa6130a2_probe(struct i2c_client *client,
- const struct i2c_device_id *id)
+static int __devinit tpa6130a2_probe(struct i2c_client *client,
+ const struct i2c_device_id *id)
{
struct device *dev;
struct tpa6130a2_data *data;
struct tpa6130a2_platform_data *pdata;
- int ret;
+ int i, ret;
dev = &client->dev;
@@ -387,15 +420,38 @@ static int tpa6130a2_probe(struct i2c_client *client,
if (ret < 0) {
dev_err(dev, "Failed to request power GPIO (%d)\n",
data->power_gpio);
- goto fail;
+ goto err_gpio;
}
gpio_direction_output(data->power_gpio, 0);
- } else {
- data->power_state = 1;
- tpa6130a2_initialize();
}
- tpa6130a2_power(1);
+ switch (pdata->id) {
+ case TPA6130A2:
+ for (i = 0; i < ARRAY_SIZE(data->supplies); i++)
+ data->supplies[i].supply = tpa6130a2_supply_names[i];
+ break;
+ case TPA6140A2:
+ for (i = 0; i < ARRAY_SIZE(data->supplies); i++)
+ data->supplies[i].supply = tpa6140a2_supply_names[i];;
+ break;
+ default:
+ dev_warn(dev, "Unknown TPA model (%d). Assuming 6130A2\n",
+ pdata->id);
+ for (i = 0; i < ARRAY_SIZE(data->supplies); i++)
+ data->supplies[i].supply = tpa6130a2_supply_names[i];
+ }
+
+ ret = regulator_bulk_get(dev, ARRAY_SIZE(data->supplies),
+ data->supplies);
+ if (ret != 0) {
+ dev_err(dev, "Failed to request supplies: %d\n", ret);
+ goto err_regulator;
+ }
+
+ ret = tpa6130a2_power(1);
+ if (ret != 0)
+ goto err_power;
+
/* Read version */
ret = tpa6130a2_i2c_read(TPA6130A2_REG_VERSION) &
@@ -404,10 +460,18 @@ static int tpa6130a2_probe(struct i2c_client *client,
dev_warn(dev, "UNTESTED version detected (%d)\n", ret);
/* Disable the chip */
- tpa6130a2_power(0);
+ ret = tpa6130a2_power(0);
+ if (ret != 0)
+ goto err_power;
return 0;
-fail:
+
+err_power:
+ regulator_bulk_free(ARRAY_SIZE(data->supplies), data->supplies);
+err_regulator:
+ if (data->power_gpio >= 0)
+ gpio_free(data->power_gpio);
+err_gpio:
kfree(data);
i2c_set_clientdata(tpa6130a2_client, NULL);
tpa6130a2_client = NULL;
@@ -415,7 +479,7 @@ fail:
return ret;
}
-static int tpa6130a2_remove(struct i2c_client *client)
+static int __devexit tpa6130a2_remove(struct i2c_client *client)
{
struct tpa6130a2_data *data = i2c_get_clientdata(client);
@@ -423,6 +487,9 @@ static int tpa6130a2_remove(struct i2c_client *client)
if (data->power_gpio >= 0)
gpio_free(data->power_gpio);
+
+ regulator_bulk_free(ARRAY_SIZE(data->supplies), data->supplies);
+
kfree(data);
tpa6130a2_client = NULL;
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