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Date:   Mon, 16 Mar 2020 11:00:17 +0100
From:   Alexandre Belloni <alexandre.belloni@bootlin.com>
To:     Anson Huang <anson.huang@nxp.com>
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Subject: Re: [PATCH V3 1/7] firmware: imx: Add stubs for !CONFIG_IMX_SCU case
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On 16/03/2020 09:40:52+0000, Anson Huang wrote:
> > Why is that an issue? If they don't have IMX_SCU selected, then the other
> > SCU driver are not selected either, having stubs doesn't change that you will
> > have to select at least one option. Please explain what is the issue that is not
> > solved here.
> 
> OK, what I thought is even without IMX_SCU selected, other SCU drivers still can be
> selected for build test after adding "COMPILE_TEST" to the kconfig, like below, if
> without IMX_SCU API stubs, the "COMPILE_TEST" can NOT be added to SCU drivers
> to enable build test, so I think the IMX_SCU API stubs should be added?
> 

No they shouldn't because there is not point adding COMPILE_TEST to the
SCU drivers. We don't add COMPILE_TEST to all the drivers and add stubs
to all the subsystems. E.g there is no point trying to compile an I2C
driver if the I2C core is not enabled. 

-- 
Alexandre Belloni, Bootlin
Embedded Linux and Kernel engineering
https://bootlin.com