linux-kernel - Re: [PATCH] memory: OMAP_GPMC should depend on ARCH_OMAP2PLUS || ARCH

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Message-ID: <edee6a1e-ad72-d51d-2bda-d6f59b7d91e5@kernel.org>
Date:   Tue, 10 May 2022 10:41:16 +0300
From:   Roger Quadros <rogerq@...nel.org>
To:     Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>,
        Geert Uytterhoeven <geert@...ux-m68k.org>
Cc:     Tony Lindgren <tony@...mide.com>,
        "open list:TI ETHERNET SWITCH DRIVER (CPSW)" 
        <linux-omap@...r.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] memory: OMAP_GPMC should depend on ARCH_OMAP2PLUS ||
 ARCH_K3



On 10/05/2022 10:36, Krzysztof Kozlowski wrote:
> On 10/05/2022 09:30, Geert Uytterhoeven wrote:
>> Hi Roger,
>>
>> On Tue, May 10, 2022 at 9:22 AM Roger Quadros <rogerq@...nel.org> wrote:
>>> On 09/05/2022 16:48, Geert Uytterhoeven wrote:
>>>> The Texas Instruments OMAP General Purpose Memory Controller (GPMC) is
>>>> only present on TI OMAP2/3/4/5, AM33xx, AM43x, DRA7xx, TI81xx, and K3
>>>> SoCs.  Hence add a dependency on ARCH_OMAP2PLUS || ARCH_K3, to prevent
>>>> asking the user about this driver when configuring a kernel without
>>>> OMAP2+ or K3 SoC family support.
>>>>
>>>> Fixes: be34f45f0d4aa91c ("memory: omap-gpmc: Make OMAP_GPMC config visible and selectable")
>>>> Signed-off-by: Geert Uytterhoeven <geert+renesas@...der.be>
>>
>>>> --- a/drivers/memory/Kconfig
>>>> +++ b/drivers/memory/Kconfig
>>>> @@ -105,6 +105,7 @@ config TI_EMIF
>>>>  config OMAP_GPMC
>>>>       tristate "Texas Instruments OMAP SoC GPMC driver"
>>>>       depends on OF_ADDRESS
>>>> +     depends on ARCH_OMAP2PLUS || ARCH_K3 || COMPILE_TEST
>>>>       select GPIOLIB
>>>>       help
>>>>         This driver is for the General Purpose Memory Controller (GPMC)
>>>
>>> Is there any possibility that CONFIG_IRQ_DOMAIN is not set while both
>>> OF_ADDRESS and COMPILE_TEST are set?
>>>
>>> That particular case will lead to build failures.
>>>
>>> e.g.
>>> https://krzk.eu/#/builders/63/builds/162
>>
>> So it needs an additional dependency on IRQ_DOMAIN.
>> That is a pre-existing problem, not caused by my patch (which adds
>> more dependencies, and doesn't remove any).
> 
> Is this really a case here? The failure reported above was for earlier
> version of Roger's patch which was changing to:
> 	depends on OF_ADDRESS || COMPILE_TEST
> 
> Here, OF_ADDRESS will be always a dependency. If it builds in current
> configuration (having only OF_ADDRESS), then adding dependencies should
> not cause more issues.... It only restricts the config, not widens it.
> 
> Therefore the patch looks actually correct, but some testing would be
> nice that we don't hit the same issues as before.
> 

I'll take care of the tests using lkp of course ;)

cheers,
-roger