Re: [PATCH v4 6/6] leds: lm36274: Introduce the TI LM36274 LED driver

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Jacek

On 5/21/19 12:40 PM, Jacek Anaszewski wrote:
> On 5/20/19 11:19 PM, Dan Murphy wrote:
>> Jacek
>>
>> On 5/20/19 2:54 PM, Jacek Anaszewski wrote:
>>> Hi Dan,
>>>
>>> On 5/7/19 10:11 PM, Dan Murphy wrote:
>>>> Introduce the LM36274 LED driver.  This driver uses the ti-lmu
>>>> MFD driver to probe this LED driver.  The driver configures only the
>>>> LED registers and enables the outputs according to the config file.
>>>>
>>>> The driver utilizes the TI LMU (Lighting Management Unit) LED common
>>>> framework to set the brightness bits.
>>>>
>>>> Signed-off-by: Dan Murphy <dmurphy@xxxxxx>
>>>> ---
>>>>    drivers/leds/Kconfig        |   7 ++
>>>>    drivers/leds/Makefile       |   1 +
>>>>    drivers/leds/leds-lm36274.c | 174 ++++++++++++++++++++++++++++++++++++
>>>>    3 files changed, 182 insertions(+)
>>>>    create mode 100644 drivers/leds/leds-lm36274.c
>>>>
>>>> diff --git a/drivers/leds/Kconfig b/drivers/leds/Kconfig
>>>> index 255fdd5e8491..db83a3feca01 100644
>>>> --- a/drivers/leds/Kconfig
>>>> +++ b/drivers/leds/Kconfig
>>>> @@ -791,6 +791,13 @@ config LEDS_LM3697
>>>>          Say Y to enable the LM3697 LED driver for TI LMU devices.
>>>>          This supports the LED device LM3697.
>>>>    +config LEDS_LM36274
>>>> +    tristate "LED driver for LM36274"
>>>> +    depends on LEDS_TI_LMU_COMMON
>>>
>>> Shouldn't we have "depends on MFD_TI_LMU" as well here?
>>>
>>
>> Actually the LEDS_TI_LMU_COMMON flag should depend on MFD_TI_LMU.
>> Then it would inherit that dependency.
> 
> LEDS_TI_LMU_COMMON does not seem too have any dependency on MFD_TI_LMU,
> and it would be incorrect to require enabling MFD_TI_LMU for all drivers
> depending on TI_LMU_COMMON, that can be probed on their own, like
> leds-lm3697.c .
> 

Correct.

I can update the Kconfigs unless you want to ammend the commits.

Dan



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