Re: [PATCH] ASoC: fsl_asrc: Add initialization finishing check in runtime resume

From: Nicolin Chen
Date: Tue Sep 06 2022 - 07:42:17 EST


On Tue, Sep 6, 2022 at 3:50 AM Shengjiu Wang <shengjiu.wang@xxxxxxxxx> wrote:
>> >> > + /* Wait for status of initialization for every enabled pairs */
>> >> > + do {
>> >> > + udelay(5);
>> >> > + regmap_read(asrc->regmap, REG_ASRCFG, &reg);
>> >> > + reg = (reg >> ASRCFG_INIRQi_SHIFT(0)) & 0x7;
>> >> > + } while ((reg != ((asrctr >> ASRCTR_ASRCEi_SHIFT(0)) & 0x7)) && --retry);
>> >> > +
>> >> > + /* FIXME: Doesn't treat initialization timeout as error */
>> >> > + if (!retry)
>> >> > + dev_warn(dev, "initialization isn't finished\n");
>> >>
>> >> Any reason why not just dev_err?
>> >
>> > Just hesitate to use dev_err. if use dev_err, then should return an error.
>> > May one of the pairs is finished, it still can continue.
>>
>> Makes sense. In that case, why "FIXME" :)

> Just want to have a record/note here, need to care about this warning.

"FIXME" feels like something is wrong and literally means that it is
waiting for a fix/solution. In your case, it's not waiting for a fix
at all, but just an annotation? So, shouldn't it be just "Note:"?