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Message-ID: <558BB1C1.2090400@linaro.org>
Date: Thu, 25 Jun 2015 13:16:09 +0530
From: Vaibhav Hiremath <vaibhav.hiremath@...aro.org>
To: Alexandre Belloni <alexandre.belloni@...e-electrons.com>
CC: linux-arm-kernel@...ts.infradead.org, robh+dt@...nel.org,
lee.jones@...aro.org, devicetree@...r.kernel.org,
rtc-linux@...glegroups.com, linux-kernel@...r.kernel.org,
Chao Xie <chao.xie@...vell.com>
Subject: Re: [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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