linux-kernel - Re: [PATCH v9 13/55] Input: atmel_mxt_ts

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Date:   Fri, 27 Mar 2020 20:09:13 +0900
From:   "Wang, Jiada" <jiada_wang@...tor.com>
To:     Dmitry Osipenko <digetx@...il.com>, <nick@...anahar.org>,
        <dmitry.torokhov@...il.com>, <jikos@...nel.org>,
        <benjamin.tissoires@...hat.com>, <bsz@...ihalf.com>,
        <rydberg@...math.org>
CC:     <linux-input@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <erosca@...adit-jv.com>, <Andrew_Gabbasov@...tor.com>
Subject: Re: [PATCH v9 13/55] Input: atmel_mxt_ts - add regulator control
 support

Hi Dmitry

On 2020/03/26 4:05, Dmitry Osipenko wrote:
> 25.03.2020 16:32, Jiada Wang пишет:
>> From: Nick Dyer <nick.dyer@...ev.co.uk>
>>
>> Allow the driver to optionally manage enabling/disable power to the touch
>> controller itself. If the regulators are not present then use the deep
>> sleep power mode instead.
>>
>> For a correct power on sequence, it is required that we have control over
>> the RESET line.
> 
> ...
>> +	data->reg_vdd = devm_regulator_get(dev, "vdd");
>> +	if (IS_ERR(data->reg_vdd)) {
>> +		error = PTR_ERR(data->reg_vdd);
>> +		dev_err(dev, "Error %d getting vdd regulator\n", error);
>> +		goto fail;
>> +	}
>> +
>> +	data->reg_avdd = devm_regulator_get(dev, "avdd");
>> +	if (IS_ERR(data->reg_avdd)) {
>> +		error = PTR_ERR(data->reg_avdd);
>> +		dev_err(dev, "Error %d getting avdd regulator\n", error);
>> +		goto fail_release;
>> +	}
> 
> Hello Jiada,
> 
> The new regulator properties should be documented in the device-tree
> binding.
>
I will document new regulator properties in a separate commit in
v10 patch-set

Thanks,
Jiada