linux-kernel - Re: [PATCH 3/4] clk: clk-imx8mp-audiomix: use the auxiliary device creation helper

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Message-ID: <1jikkmkewj.fsf@starbuckisacylon.baylibre.com>
Date: Mon, 23 Jun 2025 11:04:12 +0200
From: Jerome Brunet <jbrunet@...libre.com>
To: Frank Li <Frank.li@....com>
Cc: Vladimir Kondratiev <vladimir.kondratiev@...ileye.com>,  Gregory CLEMENT
 <gregory.clement@...tlin.com>,  Théo Lebrun
 <theo.lebrun@...tlin.com>,
  Michael Turquette <mturquette@...libre.com>,  Stephen Boyd
 <sboyd@...nel.org>,  Philipp Zabel <p.zabel@...gutronix.de>,  Abel Vesa
 <abelvesa@...nel.org>,  Peng Fan <peng.fan@....com>,  Shawn Guo
 <shawnguo@...nel.org>,  Sascha Hauer <s.hauer@...gutronix.de>,
  Pengutronix Kernel Team <kernel@...gutronix.de>,  Fabio Estevam
 <festevam@...il.com>,  Neil Armstrong <neil.armstrong@...aro.org>,  Kevin
 Hilman <khilman@...libre.com>,  Martin Blumenstingl
 <martin.blumenstingl@...glemail.com>,  linux-mips@...r.kernel.org,
  linux-clk@...r.kernel.org,  linux-kernel@...r.kernel.org,
  imx@...ts.linux.dev,  linux-arm-kernel@...ts.infradead.org,
  linux-amlogic@...ts.infradead.org
Subject: Re: [PATCH 3/4] clk: clk-imx8mp-audiomix: use the auxiliary device
 creation helper

On Wed 11 Jun 2025 at 12:48, Frank Li <Frank.li@....com> wrote:

> On Wed, Jun 11, 2025 at 02:53:58PM +0200, Jerome Brunet wrote:
>> The auxiliary device creation of this driver is simple enough to
>> use the available auxiliary device creation helper.
>>
>> Use it and remove some boilerplate code.
>
> Actaully, you also remove unused struct clk_imx8mp_audiomix_priv *priv
> at clk_imx8mp_audiomix_reset_controller_register().
>
> Please add it into comments.

That's merely a side effect of removing the boilerplate code.
Like for the other changes of the same kind, I don't think listing the
symbols removed would be useful to the change description

>
> Reviewed-by: Frank Li <Frank.Li@....com>
>
>>
>> Signed-off-by: Jerome Brunet <jbrunet@...libre.com>
>> ---
>>  drivers/clk/imx/clk-imx8mp-audiomix.c | 49 ++++++-----------------------------
>>  1 file changed, 8 insertions(+), 41 deletions(-)
>>
>> diff --git a/drivers/clk/imx/clk-imx8mp-audiomix.c b/drivers/clk/imx/clk-imx8mp-audiomix.c
>> index 775f62dddb11d8cfd17a4ebf7a677ef399c5e617..765fb1f5bd4fa2b039d7414abd89471438ee41dd 100644
>> --- a/drivers/clk/imx/clk-imx8mp-audiomix.c
>> +++ b/drivers/clk/imx/clk-imx8mp-audiomix.c
>> @@ -230,61 +230,28 @@ struct clk_imx8mp_audiomix_priv {
>>
>>  #if IS_ENABLED(CONFIG_RESET_CONTROLLER)
>>
>> -static void clk_imx8mp_audiomix_reset_unregister_adev(void *_adev)
>> +static int clk_imx8mp_audiomix_reset_controller_register(struct device *dev)
>>  {
>> -	struct auxiliary_device *adev = _adev;
>> -
>> -	auxiliary_device_delete(adev);
>> -	auxiliary_device_uninit(adev);
>> -}
>> -
>> -static void clk_imx8mp_audiomix_reset_adev_release(struct device *dev)
>> -{
>> -	struct auxiliary_device *adev = to_auxiliary_dev(dev);
>> -
>> -	kfree(adev);
>> -}
>> -
>> -static int clk_imx8mp_audiomix_reset_controller_register(struct device *dev,
>> -							 struct clk_imx8mp_audiomix_priv *priv)
>> -{
>> -	struct auxiliary_device *adev __free(kfree) = NULL;
>> -	int ret;
>> +	struct auxiliary_device *adev;
>>
>>  	if (!of_property_present(dev->of_node, "#reset-cells"))
>>  		return 0;
>>
>> -	adev = kzalloc(sizeof(*adev), GFP_KERNEL);
>> +	adev = devm_auxiliary_device_create(dev, "reset", NULL);
>>  	if (!adev)
>> -		return -ENOMEM;
>> -
>> -	adev->name = "reset";
>> -	adev->dev.parent = dev;
>> -	adev->dev.release = clk_imx8mp_audiomix_reset_adev_release;
>> -
>> -	ret = auxiliary_device_init(adev);
>> -	if (ret)
>> -		return ret;
>> +		return -ENODEV;
>>
>> -	ret = auxiliary_device_add(adev);
>> -	if (ret) {
>> -		auxiliary_device_uninit(adev);
>> -		return ret;
>> -	}
>> -
>> -	return devm_add_action_or_reset(dev, clk_imx8mp_audiomix_reset_unregister_adev,
>> -					no_free_ptr(adev));
>> +	return 0;
>>  }
>>
>>  #else /* !CONFIG_RESET_CONTROLLER */
>>
>> -static int clk_imx8mp_audiomix_reset_controller_register(struct device *dev,
>> -							 struct clk_imx8mp_audiomix_priv *priv)
>> +static int clk_imx8mp_audiomix_reset_controller_register(struct device *dev)
>>  {
>>  	return 0;
>>  }
>>
>> -#endif /* !CONFIG_RESET_CONTROLLER */
>> +#endif
>>
>>  static void clk_imx8mp_audiomix_save_restore(struct device *dev, bool save)
>>  {
>> @@ -408,7 +375,7 @@ static int clk_imx8mp_audiomix_probe(struct platform_device *pdev)
>>  	if (ret)
>>  		goto err_clk_register;
>>
>> -	ret = clk_imx8mp_audiomix_reset_controller_register(dev, priv);
>> +	ret = clk_imx8mp_audiomix_reset_controller_register(dev);
>>  	if (ret)
>>  		goto err_clk_register;
>>
>>
>> --
>> 2.47.2
>>

-- 
Jerome