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


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.

Thanks,
Vaibhav


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