linux-kernel - Re: [PATCH 11/15] regulator: ti-abb: Convert to use devm_ioremap

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Date:	Tue, 11 Jun 2013 10:01:21 +0530
From:	Tushar Behera <tushar.behera@...aro.org>
To:	Sachin Kamat <sachin.kamat@...aro.org>
CC:	linux-kernel@...r.kernel.org, thierry.reding@...il.com,
	patches@...aro.org, Mark Brown <broonie@...nel.org>,
	Liam Girdwood <lgirdwood@...il.com>
Subject: Re: [PATCH 11/15] regulator: ti-abb: Convert to use devm_ioremap_resource

On 06/10/2013 05:31 PM, Sachin Kamat wrote:
> On 10 June 2013 17:05, Tushar Behera <tushar.behera@...aro.org> wrote:
>> Commit 75096579c3ac ("lib: devres: Introduce devm_ioremap_resource()")
>> introduced devm_ioremap_resource() and deprecated the use of
>> devm_request_and_ioremap().
>>
>> Signed-off-by: Tushar Behera <tushar.behera@...aro.org>
>> CC: Mark Brown <broonie@...nel.org>
>> CC: Liam Girdwood <lgirdwood@...il.com>
>> ---
>>  drivers/regulator/ti-abb-regulator.c |   12 ++++++------
>>  1 file changed, 6 insertions(+), 6 deletions(-)
>>
>> diff --git a/drivers/regulator/ti-abb-regulator.c b/drivers/regulator/ti-abb-regulator.c
>> index 870d209..f494a11 100644
>> --- a/drivers/regulator/ti-abb-regulator.c
>> +++ b/drivers/regulator/ti-abb-regulator.c
>> @@ -722,10 +722,10 @@ static int ti_abb_probe(struct platform_device *pdev)
>>                 ret = -ENODEV;
>>                 goto err;
>>         }
>> -       abb->base = devm_request_and_ioremap(dev, res);
>> -       if (!abb->base) {
>> +       abb->base = devm_ioremap_resource(dev, res);
>> +       if (IS_ERR(abb->base)) {
>>                 dev_err(dev, "Unable to map '%s'\n", pname);
> 
> You may remove the above error message as devm_ioremap_resource prints
> its own error messages.
> 

There are a few other error messages in the driver (related to
devm_ioremap_nocache) in the same format. I would prefer to leave this
error message right now.

>> -               ret = -ENOMEM;
>> +               ret = PTR_ERR(abb->base);
>>                 goto err;
>>         }
>>
>> @@ -776,10 +776,10 @@ static int ti_abb_probe(struct platform_device *pdev)
>>                 ret = -ENODEV;
>>                 goto skip_opt;
>>         }
>> -       abb->ldo_base = devm_request_and_ioremap(dev, res);
>> -       if (!abb->ldo_base) {
>> +       abb->ldo_base = devm_ioremap_resource(dev, res);
>> +       if (IS_ERR(abb->ldo_base)) {
>>                 dev_err(dev, "Unable to map '%s'\n", pname);
> 
> ditto
> 

Same as above.

Thanks.

-- 
Tushar Behera
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