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Message-ID: <34dd6ccc-2b0f-45a7-a014-a9d924684f9c@norik.com>
Date: Thu, 6 Jun 2024 13:35:37 +0200
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Subject: Re: [PATCH] OPP: ti: Fix ti_opp_supply_probe wrong return values
To: Viresh Kumar <viresh.kumar@linaro.org>
Cc: Viresh Kumar <vireshk@kernel.org>, Nishanth Menon <nm@ti.com>,
 Stephen Boyd <sboyd@kernel.org>, linux-pm@vger.kernel.org,
 linux-kernel@vger.kernel.org, upstream@lists.phytec.de
References: <20240606070127.3506240-1-primoz.fiser@norik.com>
 <20240606085956.wsp3ecyfqck5tltt@vireshk-i7>
 <ed06bac9-6396-426a-b0ea-4932bc5fa7ed@norik.com>
 <20240606094859.6yclnarvlrzl74bj@vireshk-i7>
 <81919640-b0c4-437c-a04f-1673e8189435@norik.com>
 <20240606105822.a7giftun56dsnbgc@vireshk-i7>
From: Primoz Fiser <primoz.fiser@norik.com>
Content-Language: en-US
Organization: Norik systems d.o.o.
In-Reply-To: <20240606105822.a7giftun56dsnbgc@vireshk-i7>
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Hi,

sent new series instead of v2.

Link:
https://lore.kernel.org/linux-pm/20240606113334.396693-2-primoz.fiser@norik.com/

BR,
Primoz

On 6. 06. 24 12:58, Viresh Kumar wrote:
> On 06-06-24, 12:34, Primoz Fiser wrote:
>>> Ah, I forgot about the token that is returned here. I think the driver
>>> should be fixed properly once and for all here.
>>>
>>> The token must be used to clean the module removal part. Else if you
>>> try to insert this module, remove it, insert again, you will get some
>>> errors as the resources aren't cleaned well.
>>>
>>> So either provide a remove() callback to the driver, or use
>>> devm_pm_opp_set_config() here.
>>>
>>
>> So basically, you want v2 with:
>>
>>> diff --git a/drivers/opp/ti-opp-supply.c b/drivers/opp/ti-opp-supply.c
>>> index e3b97cd1fbbf..8a4bcc5fb9dc 100644
>>> --- a/drivers/opp/ti-opp-supply.c
>>> +++ b/drivers/opp/ti-opp-supply.c
>>> @@ -392,7 +392,7 @@ static int ti_opp_supply_probe(struct platform_device *pdev)
>>>                         return ret;
>>>         }
>>>  
>>> -       ret = dev_pm_opp_set_config_regulators(cpu_dev, ti_opp_config_regulators);
>>> +       ret = devm_pm_opp_set_config_regulators(cpu_dev, ti_opp_config_regulators);
>>>         if (ret < 0)
>>>                 _free_optimized_voltages(dev, &opp_data);
>>>  
>>> diff --git a/include/linux/pm_opp.h b/include/linux/pm_opp.h
>>> index dd7c8441af42..a2401878d1d9 100644
>>> --- a/include/linux/pm_opp.h
>>> +++ b/include/linux/pm_opp.h
>>> @@ -654,14 +654,14 @@ static inline int devm_pm_opp_set_clkname(struct device *dev, const char *name)
>>>  }
>>>  
>>>  /* config-regulators helpers */
>>> -static inline int dev_pm_opp_set_config_regulators(struct device *dev,
> 
> Don't remove this, add a new devm_ counterpart.
> 
>>> +static inline int devm_pm_opp_set_config_regulators(struct device *dev,
>>>                                                    config_regulators_t helper)
>>>  {
>>>         struct dev_pm_opp_config config = {
>>>                 .config_regulators = helper,
>>>         };
>>>  
>>> -       return dev_pm_opp_set_config(dev, &config);
>>> +       return devm_pm_opp_set_config(dev, &config);
>>>  }
> 

-- 
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