linux-kernel - Re: [PATCH 03/14] thermal: Add support for sun8i THS on Allwinner H3

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Date:	Sat, 25 Jun 2016 08:54:56 +0800
From:	Chen-Yu Tsai <wens@...e.org>
To:	Ondřej Jirman <megous@...ous.com>
Cc:	Chen-Yu Tsai <wens@...e.org>, dev <dev@...ux-sunxi.org>,
	linux-arm-kernel <linux-arm-kernel@...ts.infradead.org>,
	Zhang Rui <rui.zhang@...el.com>,
	Eduardo Valentin <edubezval@...il.com>,
	open list <linux-kernel@...r.kernel.org>,
	"open list:THERMAL" <linux-pm@...r.kernel.org>
Subject: Re: [PATCH 03/14] thermal: Add support for sun8i THS on Allwinner H3

On Sat, Jun 25, 2016 at 8:35 AM, Ondřej Jirman <megous@...ous.com> wrote:
> On 24.6.2016 05:09, Chen-Yu Tsai wrote:
>>> +static int sun8i_ths_h3_init(struct platform_device *pdev,
>>> +                            struct sun8i_ths_data *data)
>>> +{
>>> +       int ret;
>>> +       size_t callen;
>>> +       s32 *caldata;
>>> +
>>> +       data->busclk = devm_clk_get(&pdev->dev, "ahb");
>>> +       if (IS_ERR(data->busclk)) {
>>> +               ret = PTR_ERR(data->busclk);
>>> +               dev_err(&pdev->dev, "failed to get ahb clk: %d\n", ret);
>>> +               return ret;
>>> +       }
>>> +
>>> +       data->clk = devm_clk_get(&pdev->dev, "ths");
>>> +       if (IS_ERR(data->clk)) {
>>> +               ret = PTR_ERR(data->clk);
>>> +               dev_err(&pdev->dev, "failed to get ths clk: %d\n", ret);
>>> +               return ret;
>>> +       }
>>> +
>>> +       data->reset = devm_reset_control_get(&pdev->dev, "ahb");
>>
>> IIRC with the new shared reset control stuff merged, you are supposed
>> to specify whether you want a shared or exclusive one when you ask for
>> it.
>
> Here devm_reset_control_get will get the exclusive reference. So this
> should be ok.

See https://patchwork.kernel.org/patch/9158691/

The generic ones might be removed later on. I remember in another thread
it was asked that new users should use the explicit API, and avoid having
to be converted.

ChenYu

>
> regards,
>   Ondrej
>
>>
>> Regards
>> ChenYu
>>
>>> +MODULE_LICENSE("GPL v2");
>>> --
>>> 2.9.0
>>>
>