linux-kernel - Re: [PATCH v4 4/4] pmbus: ltc2978: add regulator support

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Message-ID: <542CA9B9.4050602@roeck-us.net>
Date:	Wed, 01 Oct 2014 18:26:17 -0700
From:	Guenter Roeck <linux@...ck-us.net>
To:	atull <atull@...nsource.altera.com>
CC:	jdelvare@...e.de, lm-sensors@...sensors.org, lgirdwood@...il.com,
	broonie@...nel.org, robh+dt@...nel.org, pawel.moll@....com,
	mark.rutland@....com, ijc+devicetree@...lion.org.uk,
	galak@...eaurora.org, devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org, delicious.quinoa@...il.com,
	dinguyen@...nsource.altera.com, yvanderv@...nsource.altera.com
Subject: Re: [PATCH v4 4/4] pmbus: ltc2978: add regulator support

On 10/01/2014 03:20 PM, atull wrote:
> On Wed, 1 Oct 2014, Guenter Roeck wrote:
>
>> On Wed, Oct 01, 2014 at 03:18:20PM -0500, atull@...nsource.altera.com wrote:
>>> From: Alan Tull <atull@...nsource.altera.com>
>>>
>>> Add simple on/off regulator support for ltc2978 and
>>> other pmbus parts supported by ltc2978.c
>>>
>>> Signed-off-by: Alan Tull <atull@...nsource.altera.com>
>>>
>>> v2: Remove '#include <linux/regulator/machine.h>'
>>>      Only one regulator per pmbus device
>>>      Get regulator_init_data from pdata or device tree
>>>
>>> v3: Support multiple regulators for each chip
>>>      Move most code to pmbus_core.c
>>>      fixed values for on/off
>>>
>>> v4: fix a #endif comment
>>>      simplify probe code, remove added switch statement
>>>      remove BUG_ON(), add error message and fix num_regulators
>>> ---
>>>   drivers/hwmon/pmbus/Kconfig   |    7 +++++++
>>>   drivers/hwmon/pmbus/ltc2978.c |   37 +++++++++++++++++++++++++++++++++++++
>>>   2 files changed, 44 insertions(+)
>>>
>>> diff --git a/drivers/hwmon/pmbus/Kconfig b/drivers/hwmon/pmbus/Kconfig
>>> index 6e1e493..79117b7 100644
>>> --- a/drivers/hwmon/pmbus/Kconfig
>>> +++ b/drivers/hwmon/pmbus/Kconfig
>>> @@ -56,6 +56,13 @@ config SENSORS_LTC2978
>>>   	  This driver can also be built as a module. If so, the module will
>>>   	  be called ltc2978.
>>>
>>> +config SENSORS_LTC2978_REGULATOR
>>> +	boolean "Regulator support for LTC2974, LTC2978, LTC3880, and LTC3883"
>>
>> We will need to update this and SENSORS_LTC2978 and add LTC2977 as well as
>> LTM4646 to the list of supported chips.
>>
>> Guenter
>
> I will add the whole list to the 'help' sections of SENSORS_LTC2978 and
> SENSORS_LTC2978_REGULATOR.
>
> For the tristate/boolean lines, I can't fit the whole list, so I will
> leave them as they are.  Or I could change to 'LTC2978 and compatibles' as
> many others in this Kconfig have.
>
Yes, that makes sense.

Thanks,
Guenter

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