Commit 872a64d7 authored by Peter Ujfalusi's avatar Peter Ujfalusi Committed by Liam Girdwood

ASoC: tpa6130a2: Error handling for broken chip

Correct/Implement handling of broken chip.
Fail the i2c_prope if the communication with the chip
fails.
Signed-off-by: default avatarPeter Ujfalusi <peter.ujfalusi@nokia.com>
Acked-by: default avatarMark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: default avatarLiam Girdwood <lrg@slimlogic.co.uk>
parent cf4bb698
......@@ -98,16 +98,21 @@ static u8 tpa6130a2_read(int reg)
return data->regs[reg];
}
static void tpa6130a2_initialize(void)
static int tpa6130a2_initialize(void)
{
struct tpa6130a2_data *data;
int i;
int i, ret = 0;
BUG_ON(tpa6130a2_client == NULL);
data = i2c_get_clientdata(tpa6130a2_client);
for (i = 1; i < TPA6130A2_REG_VERSION; i++)
tpa6130a2_i2c_write(i, data->regs[i]);
for (i = 1; i < TPA6130A2_REG_VERSION; i++) {
ret = tpa6130a2_i2c_write(i, data->regs[i]);
if (ret < 0)
break;
}
return ret;
}
static int tpa6130a2_power(int power)
......@@ -133,7 +138,16 @@ static int tpa6130a2_power(int power)
}
data->power_state = 1;
tpa6130a2_initialize();
ret = tpa6130a2_initialize();
if (ret < 0) {
dev_err(&tpa6130a2_client->dev,
"Failed to initialize chip\n");
if (data->power_gpio >= 0)
gpio_set_value(data->power_gpio, 0);
regulator_disable(data->supply);
data->power_state = 0;
goto exit;
}
/* Clear SWS */
val = tpa6130a2_read(TPA6130A2_REG_CONTROL);
......@@ -375,7 +389,9 @@ int tpa6130a2_add_controls(struct snd_soc_codec *codec)
{
struct tpa6130a2_data *data;
BUG_ON(tpa6130a2_client == NULL);
if (tpa6130a2_client == NULL)
return -ENODEV;
data = i2c_get_clientdata(tpa6130a2_client);
snd_soc_dapm_new_controls(codec, tpa6130a2_dapm_widgets,
......
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