diff options
| author | Peter Ujfalusi <peter.ujfalusi@nokia.com> | 2010-11-30 16:00:00 +0200 |
|---|---|---|
| committer | Liam Girdwood <lrg@slimlogic.co.uk> | 2010-11-30 15:39:39 +0000 |
| commit | d5876ce1242b78987e6243ba3cb23bb61d44d4a9 (patch) | |
| tree | 088002cb822eff36c791f67a1982b65e272021f2 /sound/soc/codecs/tpa6130a2.c | |
| parent | 3e202345abc2cea09a3601df527629102f37e563 (diff) | |
ASoC: tpa6130a2: Simplify power state management
Use simpler way to avoid setting the same power state
for the amplifier.
Simplifies the check introduced by patch:
ASoC: tpa6130a2: Fix unbalanced regulator disables
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@nokia.com>
Cc: Jarkko Nikula <jhnikula@gmail.com>
Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
Diffstat (limited to 'sound/soc/codecs/tpa6130a2.c')
| -rw-r--r-- | sound/soc/codecs/tpa6130a2.c | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/sound/soc/codecs/tpa6130a2.c b/sound/soc/codecs/tpa6130a2.c index 9d61a1d6fce..199edf07f47 100644 --- a/sound/soc/codecs/tpa6130a2.c +++ b/sound/soc/codecs/tpa6130a2.c @@ -41,7 +41,7 @@ struct tpa6130a2_data { unsigned char regs[TPA6130A2_CACHEREGNUM]; struct regulator *supply; int power_gpio; - unsigned char power_state; + u8 power_state:1; enum tpa_model id; }; @@ -116,7 +116,7 @@ static int tpa6130a2_initialize(void) return ret; } -static int tpa6130a2_power(int power) +static int tpa6130a2_power(u8 power) { struct tpa6130a2_data *data; u8 val; @@ -126,8 +126,10 @@ static int tpa6130a2_power(int power) data = i2c_get_clientdata(tpa6130a2_client); mutex_lock(&data->mutex); - if (power && !data->power_state) { + if (power == data->power_state) + goto exit; + if (power) { ret = regulator_enable(data->supply); if (ret != 0) { dev_err(&tpa6130a2_client->dev, @@ -154,7 +156,7 @@ static int tpa6130a2_power(int power) val = tpa6130a2_read(TPA6130A2_REG_CONTROL); val &= ~TPA6130A2_SWS; tpa6130a2_i2c_write(TPA6130A2_REG_CONTROL, val); - } else if (!power && data->power_state) { + } else { /* set SWS */ val = tpa6130a2_read(TPA6130A2_REG_CONTROL); val |= TPA6130A2_SWS; |