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SubjectRe: [PATCH] i2c: Make I2C_ATR invisible
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Hi Geert,

On 16/08/2023 11:17, Geert Uytterhoeven wrote:
> Hi Tomi,
>
> On Tue, Aug 15, 2023 at 6:00 PM Tomi Valkeinen
> <tomi.valkeinen@ideasonboard.com> wrote:
>> On 15/08/2023 18:29, Geert Uytterhoeven wrote:
>>> I2C Address Translator (ATR) support is not a stand-alone driver, but a
>>> library. All of its users select I2C_ATR. Hence there is no need for
>>> the user to enable this symbol manually, except when compile-testing.
>>>
>>> Fixes: a076a860acae77bb ("media: i2c: add I2C Address Translator (ATR) support")
>>> Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
>>> ---
>>> Do we care yet about out-of-tree drivers that need this functionality?
>>> ---
>>> drivers/i2c/Kconfig | 2 +-
>>> 1 file changed, 1 insertion(+), 1 deletion(-)
>>>
>>> diff --git a/drivers/i2c/Kconfig b/drivers/i2c/Kconfig
>>> index c6d1a345ea6d8aee..9388823bb0bb960c 100644
>>> --- a/drivers/i2c/Kconfig
>>> +++ b/drivers/i2c/Kconfig
>>> @@ -72,7 +72,7 @@ config I2C_MUX
>>> source "drivers/i2c/muxes/Kconfig"
>>>
>>> config I2C_ATR
>>> - tristate "I2C Address Translator (ATR) support"
>>> + tristate "I2C Address Translator (ATR) support" if COMPILE_TEST
>>> help
>>> Enable support for I2C Address Translator (ATR) chips.
>>>
>>
>> Isn't this normally done with just "tristate", without the text? Is
>> there a need to make configs manually selectable when compile-test is
>> enabled?
>
> "tristate" without the text would make the symbol invisible, too.
> However, then the user has no way to enable it for compile-testing
> (unless also enabling one of the symbols that select it, which may
> not be possible due to other dependencies).

Yes. My point/question is, i2c-atr isn't different than any other
selectable kconfig (afaics), like, say, DRM_KMS_HELPER. So is the
"official" way (if there is such a thing) to add selectable kconfigs
with just "tristate", or tristate with "if COMPILE_TEST". I thought it
was the former, but I can see value with the latter too.

Tomi

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