linux-kernel - Re: [PATCH 12/13] thermal: convert tegra_thermal to use devm_thermal_zone_of_sensor

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Message-ID: <56E7A0B4.2050900@nvidia.com>
Date:	Tue, 15 Mar 2016 13:42:12 +0800
From:	Wei Ni <wni@...dia.com>
To:	Eduardo Valentin <edubezval@...il.com>
CC:	Rui Zhang <rui.zhang@...el.com>,
	Linux PM <linux-pm@...r.kernel.org>,
	LKML <linux-kernel@...r.kernel.org>, <lm-sensors@...sensors.org>,
	Stephen Warren <swarren@...dotorg.org>,
	Thierry Reding <thierry.reding@...il.com>,
	"Alexandre Courbot" <gnurou@...il.com>,
	<linux-tegra@...r.kernel.org>
Subject: Re: [PATCH 12/13] thermal: convert tegra_thermal to use devm_thermal_zone_of_sensor_register



On 2016年03月15日 05:16, Eduardo Valentin wrote:
> * PGP Signed by an unknown key
> 
> On Thu, Mar 10, 2016 at 04:46:55PM +0800, Wei Ni wrote:
>>
>>
>> On 2016年03月10日 05:35, Eduardo Valentin wrote:
>>> This changes the driver to use the devm_ version
>>> of thermal_zone_of_sensor_register and cleans
>>> up the  local points and unregister calls.
>>>
>>> Cc: Zhang Rui <rui.zhang@...el.com>
>>> Cc: Stephen Warren <swarren@...dotorg.org>
>>> Cc: Thierry Reding <thierry.reding@...il.com>
>>> Cc: Alexandre Courbot <gnurou@...il.com>
>>> Cc: linux-pm@...r.kernel.org
>>> Cc: linux-tegra@...r.kernel.org
>>> Cc: linux-kernel@...r.kernel.org
>>> Signed-off-by: Eduardo Valentin <edubezval@...il.com>
>>> ---
>>>  drivers/thermal/tegra_soctherm.c | 31 +++++++++----------------------
>>>  1 file changed, 9 insertions(+), 22 deletions(-)
>>>
>>> diff --git a/drivers/thermal/tegra_soctherm.c b/drivers/thermal/tegra_soctherm.c
>>> index 74ea576..0018ccd 100644
>>> --- a/drivers/thermal/tegra_soctherm.c
>>> +++ b/drivers/thermal/tegra_soctherm.c
>>> @@ -168,7 +168,7 @@ struct tegra_soctherm {
>>>  	struct clk *clock_soctherm;
>>>  	void __iomem *regs;
>>>  
>>> -	struct thermal_zone_device *thermctl_tzs[4];
>>> +#define ZONE_NUMBER		4
>>>  };
>>>  
>>>  struct tsensor_shared_calibration {
>>> @@ -342,7 +342,7 @@ static const struct thermctl_zone_desc t124_thermctl_temp_zones[] = {
>>>  static int tegra_soctherm_probe(struct platform_device *pdev)
>>>  {
>>>  	struct tegra_soctherm *tegra;
>>> -	struct thermal_zone_device *tz;
>>> +	struct thermal_zone_device *z;
>>>  	struct tsensor_shared_calibration shared_calib;
>>>  	struct resource *res;
>>>  	unsigned int i;
>>> @@ -408,36 +408,29 @@ static int tegra_soctherm_probe(struct platform_device *pdev)
>>>  
>>>  	/* Initialize thermctl sensors */
>>>  
>>> -	for (i = 0; i < ARRAY_SIZE(tegra->thermctl_tzs); ++i) {
>>> +	for (i = 0; i < ZONE_NUMBER; ++i) {
>>>  		struct tegra_thermctl_zone *zone =
>>>  			devm_kzalloc(&pdev->dev, sizeof(*zone), GFP_KERNEL);
>>>  		if (!zone) {
>>>  			err = -ENOMEM;
>>> -			goto unregister_tzs;
>>> +			goto disable_clocks;
>>>  		}
>>>  
>>>  		zone->reg = tegra->regs + t124_thermctl_temp_zones[i].offset;
>>>  		zone->shift = t124_thermctl_temp_zones[i].shift;
>>>  
>>> -		tz = thermal_zone_of_sensor_register(&pdev->dev, i, zone,
>>> -						     &tegra_of_thermal_ops);
>>> -		if (IS_ERR(tz)) {
>>> -			err = PTR_ERR(tz);
>>> +		z = devm_thermal_zone_of_sensor_register(&pdev->dev, i, zone,
>>
>> I prefer to still use "tz", it seems this line isn't over 80 characters, or we
>> can add newline.
> 
> 
> Yeah,
> 
> 
>>
>>> +							 &tegra_of_thermal_ops);
> 
> CHECK: Alignment should match open parenthesis
> #423: FILE: drivers/thermal/tegra_soctherm.c:423:
> +		tz = devm_thermal_zone_of_sensor_register(&pdev->dev, i, zone,
> +							 &tegra_of_thermal_ops);
> 
> and if you align it, then, you get the warning:
> WARNING: line over 80 characters
> #423: FILE: drivers/thermal/tegra_soctherm.c:423:
> +							  &tegra_of_thermal_ops);
> 
> And I did not want to add either of the above to the driver. 
> 
> But if you prefer tz over z, we can keep the first (check) then.
> 
> What do you prefer?

Hmm, I see.
Ok, it's better to use "z" to resolve it.

Wei.
> 
> 
> 
> 
> 
> * Unknown Key
> * 0x7DA4E256
>