Refactor the tas2770_set_samplerate to simplify the code and access the I2C bus only once per rate request. The ramp rate and sample rate bits are contained in the same register so a single call to the snd_soc_update_bits function is all that is needed
Signed-off-by: Dan Murphy dmurphy@ti.com --- sound/soc/codecs/tas2770.c | 75 ++++++++++---------------------------- 1 file changed, 19 insertions(+), 56 deletions(-)
diff --git a/sound/soc/codecs/tas2770.c b/sound/soc/codecs/tas2770.c index b17cf0a7f785..386aaa11fa08 100644 --- a/sound/soc/codecs/tas2770.c +++ b/sound/soc/codecs/tas2770.c @@ -252,80 +252,43 @@ static int tas2770_set_bitwidth(struct tas2770_priv *tas2770, int bitwidth)
static int tas2770_set_samplerate(struct tas2770_priv *tas2770, int samplerate) { - int ret; struct snd_soc_component *component = tas2770->component; + int ramp_rate_val; + int ret;
switch (samplerate) { case 48000: - ret = snd_soc_component_update_bits(component, TAS2770_TDM_CFG_REG0, - TAS2770_TDM_CFG_REG0_SMP_MASK, - TAS2770_TDM_CFG_REG0_SMP_48KHZ); - if (ret < 0) - return ret; - - ret = snd_soc_component_update_bits(component, TAS2770_TDM_CFG_REG0, - TAS2770_TDM_CFG_REG0_31_MASK, - TAS2770_TDM_CFG_REG0_31_44_1_48KHZ); + ramp_rate_val = TAS2770_TDM_CFG_REG0_SMP_48KHZ | + TAS2770_TDM_CFG_REG0_31_44_1_48KHZ; break; case 44100: - ret = snd_soc_component_update_bits(component, TAS2770_TDM_CFG_REG0, - TAS2770_TDM_CFG_REG0_SMP_MASK, - TAS2770_TDM_CFG_REG0_SMP_44_1KHZ); - if (ret < 0) - return ret; - - ret = snd_soc_component_update_bits(component, TAS2770_TDM_CFG_REG0, - TAS2770_TDM_CFG_REG0_31_MASK, - TAS2770_TDM_CFG_REG0_31_44_1_48KHZ); + ramp_rate_val = TAS2770_TDM_CFG_REG0_SMP_44_1KHZ | + TAS2770_TDM_CFG_REG0_31_44_1_48KHZ; break; case 96000: - ret = snd_soc_component_update_bits(component, TAS2770_TDM_CFG_REG0, - TAS2770_TDM_CFG_REG0_SMP_MASK, - TAS2770_TDM_CFG_REG0_SMP_48KHZ); - if (ret < 0) - return ret; - - ret = snd_soc_component_update_bits(component, TAS2770_TDM_CFG_REG0, - TAS2770_TDM_CFG_REG0_31_MASK, - TAS2770_TDM_CFG_REG0_31_88_2_96KHZ); + ramp_rate_val = TAS2770_TDM_CFG_REG0_SMP_48KHZ | + TAS2770_TDM_CFG_REG0_31_88_2_96KHZ; break; case 88200: - ret = snd_soc_component_update_bits(component, TAS2770_TDM_CFG_REG0, - TAS2770_TDM_CFG_REG0_SMP_MASK, - TAS2770_TDM_CFG_REG0_SMP_44_1KHZ); - if (ret < 0) - return ret; - - ret = snd_soc_component_update_bits(component, TAS2770_TDM_CFG_REG0, - TAS2770_TDM_CFG_REG0_31_MASK, - TAS2770_TDM_CFG_REG0_31_88_2_96KHZ); + ramp_rate_val = TAS2770_TDM_CFG_REG0_SMP_44_1KHZ | + TAS2770_TDM_CFG_REG0_31_88_2_96KHZ; break; case 19200: - ret = snd_soc_component_update_bits(component, TAS2770_TDM_CFG_REG0, - TAS2770_TDM_CFG_REG0_SMP_MASK, - TAS2770_TDM_CFG_REG0_SMP_48KHZ); - if (ret < 0) - return ret; - - ret = snd_soc_component_update_bits(component, TAS2770_TDM_CFG_REG0, - TAS2770_TDM_CFG_REG0_31_MASK, - TAS2770_TDM_CFG_REG0_31_176_4_192KHZ); + ramp_rate_val = TAS2770_TDM_CFG_REG0_SMP_48KHZ | + TAS2770_TDM_CFG_REG0_31_176_4_192KHZ; break; case 17640: - ret = snd_soc_component_update_bits(component, TAS2770_TDM_CFG_REG0, - TAS2770_TDM_CFG_REG0_SMP_MASK, - TAS2770_TDM_CFG_REG0_SMP_44_1KHZ); - if (ret < 0) - return ret; - - ret = snd_soc_component_update_bits(component, TAS2770_TDM_CFG_REG0, - TAS2770_TDM_CFG_REG0_31_MASK, - TAS2770_TDM_CFG_REG0_31_176_4_192KHZ); + ramp_rate_val = TAS2770_TDM_CFG_REG0_SMP_44_1KHZ | + TAS2770_TDM_CFG_REG0_31_176_4_192KHZ; break; default: - ret = -EINVAL; + return -EINVAL; }
+ ret = snd_soc_component_update_bits(component, TAS2770_TDM_CFG_REG0, + TAS2770_TDM_CFG_REG0_SMP_MASK | + TAS2770_TDM_CFG_REG0_31_MASK, + ramp_rate_val); if (ret < 0) return ret;