Re: [PATCH 5/5] ASoC: codecs: Add WCD939x Codec driver

[Neil Armstrong]

Hi,

On 24/11/2023 11:19, Mark Brown wrote:
> On Thu, Nov 23, 2023 at 03:49:15PM +0100, Neil Armstrong wrote:
>
> > +	if (wcd939x->variant == WCD9390) {
> > +		if (mode_val == CLS_H_HIFI || mode_val == CLS_AB_HIFI) {
> > +			dev_info(component->dev, "%s: Invalid HPH Mode, default to CLS_H_ULP\n",
> > +				 __func__);
> > +			mode_val = CLS_H_ULP;
> > +		}
> > +	}
> > +	if (mode_val == CLS_H_NORMAL) {
> > +		dev_info(component->dev, "%s: Invalid HPH Mode, default to class_AB\n",
> > +			 __func__);
> > +		mode_val = CLS_H_ULP;
> > +	}
>
> This lets people spam the logs from userspace, why not just return an
> error?

Indeed, will switch to an error, seems safer

> > +	if (hphr)
> > +		wcd939x->comp2_enable = value;
> > +	else
> > +		wcd939x->comp1_enable = value;
>
> Are there really no constraints on the values for these things?

Nop, it's basically boolean, so any value > 0 is true.

> > +static const struct snd_kcontrol_new wcd9390_snd_controls[] = {
> > +	SOC_ENUM_EXT("EAR PA GAIN", wcd939x_ear_pa_gain_enum,
> > +		     wcd939x_ear_pa_gain_get, wcd939x_ear_pa_gain_put),
>
> Gains should be be named Volume.  Is there no TLV information?

Let me check that, I maybe forgot to add it.

> > +static irqreturn_t wcd939x_wd_handle_irq(int irq, void *data)
> > +{
> > +	return IRQ_HANDLED;
> > +}
>
> Why even request the interrupt if it's just going to be ignored?

Good question! I'll check this

Thanks,
Neil