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Message-ID: <20230928064330.104265-1-wangweidong.a@awinic.com>
Date: Thu, 28 Sep 2023 14:43:30 +0800
From: wangweidong.a@...nic.com
To: dan.carpenter@...aro.org
Cc: 13916275206@....com, alsa-devel@...a-project.org, arnd@...db.de,
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,
harshit.m.mogalapalli@...cle.com, herve.codina@...tlin.com,
krzysztof.kozlowski+dt@...aro.org, lgirdwood@...il.com,
linus.walleij@...aro.org, linux-kernel@...r.kernel.org,
liweilei@...nic.com, perex@...ex.cz, rf@...nsource.cirrus.com,
robh+dt@...nel.org, ryans.lee@...log.com, shumingf@...ltek.com,
tiwai@...e.com, trix@...hat.com, u.kleine-koenig@...gutronix.de,
wangweidong.a@...nic.com, yang.lee@...ux.alibaba.com,
yijiangtao@...nic.com
Subject: Re: [PATCH V5 8/8] ASoC: codecs: Add aw87390 amplifier driver
Thank you very much for your review, but I have some questions
I would like to discuss with you
> On Wed, Sep 27, 2023 at 08:16:34PM +0800, wangweidong.a@...nic.com wrote:
>> @@ -668,6 +668,17 @@ config SND_SOC_AW88261
>> boost converter can be adjusted smartly according to
>> the input amplitude.
>>
>> +config SND_SOC_AW87390
>> + tristate "Soc Audio for awinic aw87390"
> Capitalize A in Awinic.
Thank you very much, but our company prefers to
use awinic rather than Awinic
>> + depends on I2C
>> + select REGMAP_I2C
>> + select SND_SOC_AW88395_LIB
>> + help
>> + The awinic aw87390 is specifically designed to improve
>> + the musical output dynamic range, enhance the overall
>> + sound quallity, which is a new high efficiency, low
> s/quallity/quality/.
Thank you very much. I'll correct it
>> + noise, constant large volume, 6th Smart K audio amplifier.
>> +
>> config SND_SOC_BD28623
>> tristate "ROHM BD28623 CODEC"
>> help
> [ snip ]
>> diff --git a/sound/soc/codecs/aw87390.c b/sound/soc/codecs/aw87390.c
>> new file mode 100644
>> index 000000000000..8efae3b73eea
>> --- /dev/null
>> +++ b/sound/soc/codecs/aw87390.c
>> @@ -0,0 +1,462 @@
>> +// SPDX-License-Identifier: GPL-2.0-only
> Checkpatch complains about this. It should just be GPL-2.0, the "only"
> is assumed unless there is a + as in "GPL-2.0+". You might want to
> run scripts/checkpatch.pl --strict on your patch.
Thank you very much.
Our company uses the GPL-2.0-only all the time,
and I see a lot of GPL-2.0-only in other drivers.
>> +//
>> +// aw87390.c -- AW87390 ALSA SoC Audio driver
>> +//
>> +// Copyright (c) 2023 awinic Technology CO., LTD
>> +//
>> +// Author: Weidong Wang <wangweidong.a@...nic.com>
>> +//
>> +
>> +#include <linux/i2c.h>
>> +#include <linux/firmware.h>
>> +#include <linux/regmap.h>
>> +#include <sound/soc.h>
>> +#include "aw87390.h"
>> +#include "aw88395/aw88395_data_type.h"
>> +#include "aw88395/aw88395_device.h"
>> +
>> +static const struct regmap_config aw87390_remap_config = {
>> + .val_bits = 8,
>> + .reg_bits = 8,
>> + .max_register = AW87390_REG_MAX,
>> + .reg_format_endian = REGMAP_ENDIAN_LITTLE,
>> + .val_format_endian = REGMAP_ENDIAN_BIG,
>> +};
>> +
>> +static int aw87390_dev_reg_update(struct aw_device *aw_dev,
>> + unsigned char *data, unsigned int len)
>> +{
>> + int i, ret;
>> +
>> + if (!data) {
>> + dev_err(aw_dev->dev, "data is NULL\n");
>> + return -EINVAL;
>> + }
>> +
>> + for (i = 0; i < len; i = i + 2) {
>> + if (data[i] == AW87390_DELAY_REG_ADDR) {
>> + usleep_range(data[i + 1] * AW87390_REG_DELAY_TIME,
>> + data[i + 1] * AW87390_REG_DELAY_TIME + 10);
>> + continue;
>> + }
>> + ret = regmap_write(aw_dev->regmap, data[i], data[i + 1]);
> This assumes that len is an even number... Maybe write it as:
>
> for (i = 0; i < len - 1; i += 2) {
>
>Although that assumes len can't be zero so maybe it's not a win...
Thank you very much. I will modify it.
>> + if (ret)
>> + return ret;
>> + }
>> +
>> + return 0;
>> +}
>> +
>> +static int aw87390_dev_get_prof_name(struct aw_device *aw_dev, int index, char **prof_name)
>> +{
>> + struct aw_prof_info *prof_info = &aw_dev->prof_info;
>> + struct aw_prof_desc *prof_desc;
>> +
>> + if ((index >= aw_dev->prof_info.count) || (index < 0)) {
>> + dev_err(aw_dev->dev, "index[%d] overflow count[%d]\n",
>> + index, aw_dev->prof_info.count);
...
>> +
>> + /* update reg */
>> + sec_desc = prof_index_desc->sec_desc;
>> + ret = aw87390_dev_reg_update(aw_dev, sec_desc[AW88395_DATA_TYPE_REG].data,
>> + sec_desc[AW88395_DATA_TYPE_REG].len);
>> + if (ret) {
>> + dev_err(aw_dev->dev, "update reg failed\n");
>> + return ret;
>> + }
>> +
>> + aw_dev->prof_cur = aw_dev->prof_index;
>> +
>> + return ret;
> Just "return 0;" here. It's the same but zero is more clear.
Thank you very much. I will modify it.
>> +}
>> +
>> +static int aw87390_power_off(struct aw_device *aw_dev)
>> +{
>> + int ret;
>> +
>> + if (aw_dev->status == AW87390_DEV_PW_OFF) {
>> + dev_info(aw_dev->dev, "already power off\n");
>> + return 0;
>> + }
>> +
>> + ret = regmap_write(aw_dev->regmap, AW87390_SYSCTRL_REG, AW87390_POWER_DOWN_VALUE);
>> + if (ret)
>> + return ret;
>> + aw_dev->status = AW87390_DEV_PW_OFF;
>> +
>> + return ret;
> return 0;
Thank you very much. I will modify it.
>> +}
>> +
>> +static int aw87390_power_on(struct aw_device *aw_dev)
>> +{
>> + int ret;
>> +
>> + if (aw_dev->status == AW87390_DEV_PW_ON) {
>> + dev_info(aw_dev->dev, "already power on\n");
> Change this dev_info() to dev_dbg().
Thank you very much. I will modify it.
>> + return 0;
>> + }
>> +
>> + if (!aw_dev->fw_status) {
>> + dev_err(aw_dev->dev, "fw not load\n");
>> + return -EINVAL;
>> + }
>> +
>> + ret = regmap_write(aw_dev->regmap, AW87390_SYSCTRL_REG, AW87390_POWER_DOWN_VALUE);
>> + if (ret)
>> + return ret;
>> +
>> + ret = aw87390_dev_fw_update(aw_dev);
>> + if (ret) {
>> + dev_err(aw_dev->dev, "%s load profile failed\n", __func__);
>> + return ret;
>> + }
>> + aw_dev->status = AW87390_DEV_PW_ON;
>> +
>> + return ret;
> return 0;
Thank you very much. I will modify it.
>> +}
>> +
>> +static int aw87390_dev_set_profile_index(struct aw_device *aw_dev, int index)
>> +{
>> + if ((index >= aw_dev->prof_info.count) || (index < 0))
>> + return -EINVAL;
>> +
>> + if (aw_dev->prof_index == index)
>> + return -EPERM;
>> +
>> + aw_dev->prof_index = index;
>> +
>> + return 0;
> +}
...
>> +
>> +static const struct snd_kcontrol_new aw87390_controls[] = {
>> + AW87390_PROFILE_EXT("AW87390 Profile Set", aw87390_profile_info,
>> + aw87390_profile_get, aw87390_profile_set),
>> +};
>> +
>> +static int aw87390_request_firmware_file(struct aw87390 *aw87390)
>> +{
>> + const struct firmware *cont = NULL;
>> + int ret;
>> +
>> + aw87390->aw_pa->fw_status = AW87390_DEV_FW_FAILED;
>> +
>> + ret = request_firmware(&cont, AW87390_ACF_FILE, aw87390->aw_pa->dev);
>> + if (ret)
>> + return dev_err_probe(aw87390->aw_pa->dev, ret,
>> + "load [%s] failed!\n", AW87390_ACF_FILE);
>> +
>> + dev_dbg(aw87390->aw_pa->dev, "loaded %s - size: %zu\n",
>> + AW87390_ACF_FILE, cont ? cont->size : 0);
>> +
>> + aw87390->aw_cfg = devm_kzalloc(aw87390->aw_pa->dev, cont->size + sizeof(int), GFP_KERNEL);
> Use struct_size().
>
> aw87390->aw_cfg = devm_kzalloc(aw87390->aw_pa->dev,
> struct_size(aw87390->aw_cfg, data, cont->size),
> GFP_KERNEL);
>
Thank you very much. I will modify it.
>> + if (!aw87390->aw_cfg) {
>> + release_firmware(cont);
>> + return -ENOMEM;
>> + }
>> +
>> + aw87390->aw_cfg->len = (int)cont->size;
> No need for this scary looking cast.
Thank you very much. I will modify it to
"aw87390->aw_cfg->len = cont->size;"
>> + memcpy(aw87390->aw_cfg->data, cont->data, cont->size);
>> + release_firmware(cont);
>> +
>> + ret = aw88395_dev_load_acf_check(aw87390->aw_pa, aw87390->aw_cfg);
>> + if (ret) {
>> + dev_err(aw87390->aw_pa->dev, "load [%s] failed !\n", AW87390_ACF_FILE);
> No space before !.
Thank you very much. I will modify it.
>> + return ret;
>> + }
>> +
>> + mutex_lock(&aw87390->lock);
>> +
>> + ret = aw88395_dev_cfg_load(aw87390->aw_pa, aw87390->aw_cfg);
...
>> +static int aw87390_init(struct aw87390 **aw87390, struct i2c_client *i2c, struct regmap *regmap)
>> +{
>> + struct aw_device *aw_dev;
>> + unsigned int chip_id;
>> + int ret;
>> +
>> + /* read chip id */
>> + ret = regmap_read(regmap, AW87390_ID_REG, &chip_id);
>> + if (ret) {
>> + dev_err(&i2c->dev, "%s read chipid error. ret = %d\n", __func__, ret);
>> + return ret;
>> + }
>> +
>> + if (chip_id != AW87390_CHIP_ID) {
>> + dev_err(&i2c->dev, "unsupported device\n");
>> + return -ENXIO;
>> + }
>> +
>> + dev_info(&i2c->dev, "chip id = 0x%x\n", chip_id);
> Make this dev_dbg().
Thank you very much. I will modify it.
>> +
>> + aw_dev = devm_kzalloc(&i2c->dev, sizeof(*aw_dev), GFP_KERNEL);
>> + if (!aw_dev)
>> + return -ENOMEM;
>> +
>> + (*aw87390)->aw_pa = aw_dev;
>> + aw_dev->i2c = i2c;
>> + aw_dev->regmap = regmap;
>> + aw_dev->dev = &i2c->dev;
>> + aw_dev->chip_id = AW87390_CHIP_ID;
>> + aw_dev->acf = NULL;
>> + aw_dev->prof_info.prof_desc = NULL;
>> + aw_dev->prof_info.count = 0;
>> + aw_dev->prof_info.prof_type = AW88395_DEV_NONE_TYPE_ID;
>> + aw_dev->channel = AW87390_DEV_DEFAULT_CH;
>> + aw_dev->fw_status = AW87390_DEV_FW_FAILED;
>> + aw_dev->prof_index = AW87390_INIT_PROFILE;
>> + aw_dev->status = AW87390_DEV_PW_OFF;
>> +
>> + aw87390_parse_channel_dt(*aw87390);
>> +
>> + return ret;
> return 0;
Thank you very much. I will modify it.
>> +}
>> +
>> +static int aw87390_i2c_probe(struct i2c_client *i2c)
>> +{
>> + struct aw87390 *aw87390;
>> + int ret;
...
>> +static const struct i2c_device_id aw87390_i2c_id[] = {
>> + { AW87390_I2C_NAME, 0 },
>> + { }
>> +};
>> +MODULE_DEVICE_TABLE(i2c, aw87390_i2c_id);
>> +
>> +static struct i2c_driver aw87390_i2c_driver = {
>> + .driver = {
>> + .name = AW87390_I2C_NAME,
>> + },
>> + .probe = aw87390_i2c_probe,
>> + .id_table = aw87390_i2c_id,
>> +};
>> +module_i2c_driver(aw87390_i2c_driver);
>> +
>> +MODULE_DESCRIPTION("ASoC AW87390 PA Driver");
>> +MODULE_LICENSE("GPL v2");
> This is another checkpatch thing. It should just be
> MODULE_LICENSE("GPL");
Thank you very much, but our company follows the "GPL v2"
So I want to still use it
Best regards,
Weidong Wang
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