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Date: Mon, 31 Jul 2023 14:39:07 +0800
From: wangweidong.a@...nic.com
To: krzysztof.kozlowski@...aro.org
Cc: 13916275206@....com, alsa-devel@...a-project.org,
broonie@...nel.org, ckeepax@...nsource.cirrus.com,
colin.i.king@...il.com, conor+dt@...nel.org,
devicetree@...r.kernel.org, doug@...morgal.com, fido_max@...ox.ru,
herve.codina@...tlin.com, krzysztof.kozlowski+dt@...aro.org,
lgirdwood@...il.com, linux-kernel@...r.kernel.org,
liweilei@...nic.com, perex@...ex.cz, povik+lin@...ebit.org,
rf@...nsource.cirrus.com, robh+dt@...nel.org, ryans.lee@...log.com,
shumingf@...ltek.com, tiwai@...e.com, trix@...hat.com,
wangweidong.a@...nic.com, yijiangtao@...nic.com,
zhangjianming@...nic.com
Subject: Re: [PATCH V3 3/5] ASoC: codecs: Add aw88261 amplifier driver
Thank you very much for your review, but I have a few questions
I'd like to discuss with you
On 29/07/2023 19:22, krzysztof.kozlowski@...aro.org wrote:
> On 29/07/2023 11:12, wangweidong.a@...nic.com wrote:
>> From: Weidong Wang <wangweidong.a@...nic.com>
>>
>> Add i2c and amplifier registration for
>> aw88261 and their associated operation functions.
>>
>> Signed-off-by: Weidong Wang <wangweidong.a@...nic.com>
>> ---
>> sound/soc/codecs/aw88261/aw88261.c | 517 +++++++++++++++++++++++++++++
>> sound/soc/codecs/aw88261/aw88261.h | 52 +++
>> 2 files changed, 569 insertions(+)
>> create mode 100644 sound/soc/codecs/aw88261/aw88261.c
>> create mode 100644 sound/soc/codecs/aw88261/aw88261.h
>>
>> +
>> +static int aw88261_request_firmware_file(struct aw88261 *aw88261)
>> +{
>> + const struct firmware *cont = NULL;
>> + int ret;
>> +
>> + aw88261->aw_pa->aw88261_base->fw_status = AW88261_DEV_FW_FAILED;
>> +
>> + ret = request_firmware(&cont, AW88261_ACF_FILE, aw88261->aw_pa->dev);
>> + if (ret < 0) {
>> + dev_err_probe(aw88261->aw_pa->dev, ret, "load [%s] failed!", AW88261_ACF_FILE);
>> + return ret;
> That's not how you use dev_err_probe. Instead: return dev_err_probe
Thank you very much. I will changed it to
"return dev_err_probe(aw88261->aw_pa->dev, ret, "load [%s] failed!", AW88261_ACF_FILE)".
>> + }
>> +
>> + dev_info(aw88261->aw_pa->dev, "loaded %s - size: %zu\n",
>> + AW88261_ACF_FILE, cont ? cont->size : 0);
>> +
>> + aw88261->aw_cfg = devm_kzalloc(aw88261->aw_pa->dev, cont->size + sizeof(int), GFP_KERNEL);
>> + if (!aw88261->aw_cfg) {
>> + release_firmware(cont);
>> + return -ENOMEM;
>> + }
>> + aw88261->aw_cfg->len = (int)cont->size;
>> + memcpy(aw88261->aw_cfg->data, cont->data, cont->size);
>> + release_firmware(cont);
>> +
>> + ret = aw88395_dev_load_acf_check(aw88261->aw_pa->aw88261_base, aw88261->aw_cfg);
>> + if (ret < 0) {
>> + dev_err_probe(aw88261->aw_pa->dev, ret, "load [%s] failed !", AW88261_ACF_FILE);
>> + return ret;
> return dev_err_probe
I want to use "dev_err" here, Because the aw88395_dev_load_acf_check
function only checks the bin file, it does not involve the application of resources
>> + }
>> +
>> + mutex_lock(&aw88261->lock);
>> + /* aw device init */
>> + ret = aw88261_dev_init(aw88261->aw_pa, aw88261->aw_cfg);
>> + if (ret < 0)
>> + dev_err(aw88261->aw_pa->dev, "dev init failed");
>> + mutex_unlock(&aw88261->lock);
>> +
>> + return ret;
>> +}
>> +
>> +static int aw88261_codec_probe(struct snd_soc_component *component)
>> +{
>> + struct snd_soc_dapm_context *dapm = snd_soc_component_get_dapm(component);
>> + struct aw88261 *aw88261 = snd_soc_component_get_drvdata(component);
>> + int ret;
>> +
>> + INIT_DELAYED_WORK(&aw88261->start_work, aw88261_startup_work);
>> +
>> + ret = aw88261_request_firmware_file(aw88261);
>> + if (ret < 0) {
>> + dev_err_probe(aw88261->aw_pa->dev, ret, "aw88261_request_firmware_file failed\n");
>> + return ret;
> return dev_err_probe
Thank you very much. I'll change it to "return dev_err_probe"
>> + }
>> +
>> + /* add widgets */
>> + ret = snd_soc_dapm_new_controls(dapm, aw88261_dapm_widgets,
>> + ARRAY_SIZE(aw88261_dapm_widgets));
>> + if (ret < 0)
>> + return ret;
>> +
>> + /* add route */
>> + ret = snd_soc_dapm_add_routes(dapm, aw88261_audio_map,
>> + ARRAY_SIZE(aw88261_audio_map));
>> + if (ret < 0)
>> + return ret;
>> +
>> + ret = snd_soc_add_component_controls(component, aw88261_controls,
>> + ARRAY_SIZE(aw88261_controls));
>> +
>> + return ret;
>> +}
>> +
>> +static void aw88261_codec_remove(struct snd_soc_component *aw_codec)
>> +{
>> + struct aw88261 *aw88261 = snd_soc_component_get_drvdata(aw_codec);
>> +
>> + cancel_delayed_work_sync(&aw88261->start_work);
>> +}
>> +
>> +static const struct snd_soc_component_driver soc_codec_dev_aw88261 = {
>> + .probe = aw88261_codec_probe,
>> + .remove = aw88261_codec_remove,
>> +};
>> +
>> +static void aw88261_hw_reset(struct aw88261 *aw88261)
>> +{
>> + gpiod_set_value_cansleep(aw88261->reset_gpio, 0);
>> + usleep_range(AW88261_1000_US, AW88261_1000_US + 10);
>> + gpiod_set_value_cansleep(aw88261->reset_gpio, 1);
>> + usleep_range(AW88261_1000_US, AW88261_1000_US + 10);
>> +}
>> +
>> +static int aw88261_i2c_probe(struct i2c_client *i2c)
>> +{
>> + struct aw88261 *aw88261;
>> + int ret;
>> +
>> + ret = i2c_check_functionality(i2c->adapter, I2C_FUNC_I2C);
>> + if (!ret) {
>> + dev_err_probe(&i2c->dev, ret, "check_functionality failed");
>> + return -ENXIO;
> return dev_err_probe
Thank you very much. I'll change it to "return dev_err_probe"
>> + }
>> +
>> + aw88261 = devm_kzalloc(&i2c->dev, sizeof(struct aw88261), GFP_KERNEL);
> sizeof(*)
Thank you very much. I will change it to
"devm_kzalloc(&i2c->dev, sizeof(*aw88261), GFP_KERNEL)".
>> + if (!aw88261)
>> + return -ENOMEM;
>> +
>> + mutex_init(&aw88261->lock);
>> +
>> + i2c_set_clientdata(i2c, aw88261);
>> +
>> + aw88261->reset_gpio = devm_gpiod_get_optional(&i2c->dev, "reset", GPIOD_OUT_LOW);
>> + if (IS_ERR(aw88261->reset_gpio))
>> + dev_info(&i2c->dev, "reset gpio not defined\n");
>> + else
>> + aw88261_hw_reset(aw88261);
>> +
>> + aw88261->regmap = devm_regmap_init_i2c(i2c, &aw88261_remap_config);
>> + if (IS_ERR(aw88261->regmap)) {
>> + ret = PTR_ERR(aw88261->regmap);
>> + dev_err_probe(&i2c->dev, ret, "failed to init regmap: %d\n", ret);
>> + return ret;
> return dev_err_probe
> I asked you about this in your first version. I explicitly wrote "return
> dev_err_probe", not some other syntax.
Thank you very much. I'll change it to "return dev_err_probe"
Best regards,
Weidong Wang
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