18 Feb
2020
18 Feb
'20
8:23 p.m.
On Tue, Feb 18, 2020 at 11:21:40AM -0600, Dan Murphy wrote:
A couple of very small things, otherwise this looks good:
- if (unlikely(!tx_mask)) {
dev_err(component->dev, "tx and rx masks need to be non 0\n");return -EINVAL;- }
Do you really need the unlikely() annotation here? This is *hopefully* not a hot path.
+static int adcx140_codec_probe(struct snd_soc_component *component) +{
- struct adcx140_priv *adcx140 = snd_soc_component_get_drvdata(component);
- int sleep_cfg_val = ADCX140_WAKE_DEV;
- u8 bias_source;
- u8 vref_source;
- int ret;
- adcx140->supply_areg = devm_regulator_get_optional(adcx140->dev,
"areg");- if (IS_ERR(adcx140->supply_areg)) {
You should really do the request and defer at the I2C level, that avoids running through the whole card initialization repeatedly when the device isn't ready. Basically try to do all resource aquisition at the device level and then use it at the card level.