Re: [PATCH v2 3/5] ARM: davinci_all_defconfig: enable iio and ADS7950

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On Wednesday 11 January 2017 01:53 PM, Sekhar Nori wrote:
> On Tuesday 10 January 2017 09:13 PM, David Lechner wrote:
>> On 01/09/2017 06:29 AM, Sekhar Nori wrote:
>>> On Friday 06 January 2017 10:03 AM, David Lechner wrote:
>>>> This enables the iio subsystem and the TI ADS7950 driver. This is
>>>> used by
>>>> LEGO MINDSTORMS EV3, which has an ADS7957 chip.
>>>
>>> Can you add your sign-off?
>>>
>>>> ---
>>>>
>>>> The CONFIG_TI_ADS7950 driver is currently in iio/testing, so some
>>>> coordination
>>>> may be needed before picking up this patch.
>>>>
>>>>  arch/arm/configs/davinci_all_defconfig | 7 +++++++
>>>>  1 file changed, 7 insertions(+)
>>>>
>>>> diff --git a/arch/arm/configs/davinci_all_defconfig
>>>> b/arch/arm/configs/davinci_all_defconfig
>>>> index 2b1967a..a899876 100644
>>>> --- a/arch/arm/configs/davinci_all_defconfig
>>>> +++ b/arch/arm/configs/davinci_all_defconfig
>>>> @@ -200,6 +200,13 @@ CONFIG_TI_EDMA=y
>>>>  CONFIG_MEMORY=y
>>>>  CONFIG_TI_AEMIF=m
>>>>  CONFIG_DA8XX_DDRCTL=y
>>>> +CONFIG_IIO=m
>>>> +CONFIG_IIO_BUFFER_CB=m
>>>> +CONFIG_IIO_SW_DEVICE=m
>>>> +CONFIG_IIO_SW_TRIGGER=m
>>>
>>>> +CONFIG_TI_ADS7950=m
>>>
>>> Can you separate this from rest of the patch. I would like to enable
>>> this option only after I can find the symbol in linux-next.
>>
>> Will resend without CONFIG_TI_ADS7950
>>
>>>
>>>> +CONFIG_IIO_HRTIMER_TRIGGER=m
>>>> +CONFIG_IIO_SYSFS_TRIGGER=m
>>>
>>> Need CONFIG_IIO_TRIGGER=y also for these two options to take effect.
>>
>> CONFIG_IIO_TRIGGER is selected by IIO_TRIGGERED_BUFFER [=m] && IIO [=m]
>> && IIO_BUFFER [=y], so save_defconfig does not pick it up.
> 
> I do remember I did not see these two modules did not get enabled in
> .config after 'make davinci_all_defconfig'. Will check what I may have
> missed.

So IIO_TRIGGERED_BUFFER is not selected in my tree because I dont have
the ADS7950 driver enabled. Same thing with IIO_BUFFER.

Can you try this patch over my tree?

Thanks,
Sekhar
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