Re: [PATCH v2 4/6] regulator: Add support for QCOM PMIC VBUS booster

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On 6/15/2020 5:00 AM, Mark Brown wrote:
> On Fri, Jun 12, 2020 at 04:19:16PM -0700, Wesley Cheng wrote:
> 
>> +++ b/drivers/regulator/qcom_usb_vbus-regulator.c
>> @@ -0,0 +1,147 @@
>> +// SPDX-License-Identifier: GPL-2.0-only
>> +/*
>> + * Copyright (c) 2020, The Linux Foundation. All rights reserved.
>> + */
> 
> Please make the entire comment a C++ one so things look more
> intentional.
> 

Hi Mark,

Sure, will do.

>> +static int qcom_usb_vbus_enable(struct regulator_dev *rdev)
>> +{
> 
>> +static int qcom_usb_vbus_disable(struct regulator_dev *rdev)
>> +{
> 
>> +static int qcom_usb_vbus_is_enabled(struct regulator_dev *rdev)
>> +{
> 
> These operations can all be replaced by regulator_is_enabled_regmap()
> and friends.
> 

Got it.  This simplifies the driver a lot.  Thanks for the tip.

>> +	init_data.constraints.valid_ops_mask |= REGULATOR_CHANGE_STATUS;
> 
> No, this is broken - regulators should not override the constraints the
> machine sets.
> 

Understood.  I decided to go with of_get_regulator_init_data() to
initialize the init_data parameter.  This should take care of the
constraint settings.


-- 
The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum,
a Linux Foundation Collaborative Project



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