Re: [PATCH v1.1] ARM: multi_v7_defconfig: Enable power sequence for Odroid U3

[Javier Martinez Canillas]

Hello Krzysztof,

On 01/09/2017 02:38 PM, Krzysztof Kozlowski wrote:
> On Mon, Jan 9, 2017 at 6:24 PM, Javier Martinez Canillas
> <javier@xxxxxxxxxxxxxxx> wrote:
>> Hello Krzysztof,
>>
>> I think it would had been clearer if the subject prefix was "[PATCH v1.1 4/4]" :)
> 
> Ah, yes.
> 
>>
>> On 01/07/2017 06:16 AM, Krzysztof Kozlowski wrote:
>>> Odroid U3 needs a power sequence for lan9730, if it was enabled by
>>> bootloader.  Also enable the USB3503 HSCI to USB2.0 driver (device
>>> is present on Odroid U3).
>>>
>>> Signed-off-by: Krzysztof Kozlowski <krzk@xxxxxxxxxx>
>>>
>>> ---
>>>
>>
>> Do you think that makes sense to also enable GPIO_SYS for debugging
>> purposes as you do in patch 3/4?
> 
> I like the GPIO_SYSFS interface because it is easy to use. However
> now, after your question, I found this:
> http://lists.infradead.org/pipermail/linux-arm-kernel/2016-November/470154.html
> ARM/ARM64: defconfig: drop GPIO_SYSFS on multiplatforms
> 
> ... so instead I will drop it from exynos_defconfig.
> 

Right, I forgot that using the GPIO sysfs interface is discouraged now and the
new chardev/ioctl based should be used instead. So it makes sense to drop it.

> Best regards,
> Krzysztof

Best regards,
-- 
Javier Martinez Canillas
Open Source Group
Samsung Research America