Re: [PATCH] i2c: fix ACPI_I2C_OPREGION dependency

From: Sinan Kaya
Date: Wed Jan 03 2018 - 08:39:56 EST


On 1/2/2018 1:19 PM, Sinan Kaya wrote:
> On 1/2/2018 1:10 PM, Randy Dunlap wrote:
>>>> config ACPI_I2C_OPREGION
>>>> bool "ACPI I2C Operation region support"
>>>> - depends on I2C=y && ACPI
>>>> + depends on I2C && ACPI
>>>> default y
>>>> help
>>>> Say Y here if you want to enable ACPI I2C operation region support.
>>>>
>>> Anybody picking this up?
>> Well. It looks to me like the patch is reversed or the patch description
>> needs some improvement. Or I just don't understand it.
>
> I'll let Eric improve the description.
>
> Issue is that if you compile I2C as a module, ACPI_I2C_OPREGION doesn't get selected.
> Therefore, any ACPI opregion calls targeting I2C fail with no opregion found.
>
> The goal is to select ACPI_I2C_OPREGION independent of the I2C module type selection.
>

I hope I was able to explain it. =y above is the problem. This config option will only
be selected if module is built-in not for m case.

--
Sinan Kaya
Qualcomm Datacenter Technologies, Inc. as an affiliate of Qualcomm Technologies, Inc.
Qualcomm Technologies, Inc. is a member of the Code Aurora Forum, a Linux Foundation Collaborative Project.