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SubjectRe: [rtc-linux] [PATCH-v2] rtc: 88pm80x: add device tree support


On Thursday 25 June 2015 01:16 PM, Vaibhav Hiremath wrote:
>
>
> On Saturday 20 June 2015 06:13 AM, Alexandre Belloni wrote:
>> Hi,
>>
>
> Sorry I missed this email.
> Just wanted to send reminder email and saw this :)
>
>> On 18/06/2015 at 00:28:06 +0530, Vaibhav Hiremath wrote :
>>> - pdata = dev_get_platdata(&pdev->dev);
>>> - if (pdata == NULL)
>>> - dev_warn(&pdev->dev, "No platform data!\n");
>>> + if (!pdata && !node) {
>>> + dev_err(&pdev->dev,
>>> + "pm80x-rtc requires platform data or of_node\n");
>>> + return -EINVAL;
>>> + }
>>> +
>>> + if (!pdata) {
>>> + pdata = devm_kzalloc(&pdev->dev, sizeof(*pdata), GFP_KERNEL);
>>
>> I had troubles to follow the rtc_wakeup initialization cleanup but it
>> seems OK.
>
> Probably, once we have complete PM support ready then it would be
> easier to understand. I think as of now lets have this minimal code for
> rtc_wakeup.
>
>> However, I'm wondering why you are adding DT support as this
>> will always be probed from the MFD driver which pass the platform_data
>> and avoids that allocation.
>>
>
> You are right.
>
> Originally, it was cleanup patch,
>
> - remove pm80x_pdata
> - Add check for pdata and np
> - and around rtc_wakeup
>
> While doing that I added this nice to have allocation.
>

Any update/feedback on this?

Thanks,
Vaibhav


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