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Received: from [2a01:e34:ec5d:a741:1ee1:92ff:feb4:5ec0] (helo=ohm.rr44.fr) by hall.aurel32.net with esmtpsa (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.96) (envelope-from ) id 1vBc11-000AgZ-0O; Wed, 22 Oct 2025 18:48:47 +0200 Date: Wed, 22 Oct 2025 18:48:45 +0200 From: Aurelien Jarno To: Troy Mitchell Cc: Yixun Lan , linux-kernel@vger.kernel.org, Lee Jones , Sebastian Reichel , Paul Walmsley , Palmer Dabbelt , Albert Ou , Alexandre Ghiti , "open list:RISC-V ARCHITECTURE:Keyword:riscv" , "open list:RISC-V SPACEMIT SoC Support:Keyword:spacemit" , "open list:SYSTEM RESET/SHUTDOWN DRIVERS" Subject: Re: [PATCH v3 1/2] driver: reset: spacemit-p1: add driver for poweroff/reboot Message-ID: Mail-Followup-To: Troy Mitchell , Yixun Lan , linux-kernel@vger.kernel.org, Lee Jones , Sebastian Reichel , Paul Walmsley , Palmer Dabbelt , Albert Ou , Alexandre Ghiti , "open list:RISC-V ARCHITECTURE:Keyword:riscv" , "open list:RISC-V SPACEMIT SoC Support:Keyword:spacemit" , "open list:SYSTEM RESET/SHUTDOWN DRIVERS" References: <20251021201451.1013640-1-aurelien@aurel32.net> <20251021201451.1013640-2-aurelien@aurel32.net> <20251022004830-GYB1522542@gentoo.org> <52468F28CD7B50FD+aPhurJD4HTXqIGDT@kernel.org> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <52468F28CD7B50FD+aPhurJD4HTXqIGDT@kernel.org> User-Agent: Mutt/2.2.13 (2024-03-09) On 2025-10-22 13:42, Troy Mitchell wrote: > > > > diff --git a/drivers/power/reset/Kconfig b/drivers/power/reset/Kconfig > > > > index 8248895ca9038..6577d73edbda4 100644 > > > > --- a/drivers/power/reset/Kconfig > > > > +++ b/drivers/power/reset/Kconfig > > > > @@ -283,6 +283,15 @@ config POWER_RESET_KEYSTONE > > > > help > > > > Reboot support for the KEYSTONE SoCs. > > > > > > > > +config POWER_RESET_SPACEMIT_P1 > > > > + tristate "SpacemiT P1 poweroff and reset driver" > > > > + depends on ARCH_SPACEMIT || COMPILE_TEST > > > .. > > > > + select MFD_SPACEMIT_P1 > > > I'd suggest to use "depends on" instead of "select", the reason is that > > > using "select" will sometimes ignore the dependency, considering > > > the reset driver here is tightly coupled with P1, so I think it's > > > reasonable to switch to use "depends on", also refer below link > > > > > > https://lxr.linux.no/#linux+v6.7.1/Documentation/kbuild/kconfig-language.rst#L144 > > > > > > select should be used with care. select will force > > > a symbol to a value without visiting the dependencies. > > > By abusing select you are able to select a symbol FOO even > > > if FOO depends on BAR that is not set. > > > In general use select only for non-visible symbols > > > (no prompts anywhere) and for symbols with no dependencies. > > > That will limit the usefulness but on the other hand avoid > > > the illegal configurations all over. > > > > Thanks for the pointer, I'll fix that in the next version. I used > > REGULATOR_SPACEMIT_P1 and RTC_DRV_SPACEMIT_P1 as examples, they'll also > > need to be fixed. > Yes, I have said here[1]. > Do you want to fix that? If you don't have time, I can do it. For the reboot patch series, I'll do that in the v4, but I would appreciate if you can do it for the PMIC and RTC drivers. I guess it can be a patch series with the first patch being the one you already posted. > > Note also that without the select, a default value has to be added to > > MFD_SPACEMIT_P1. > Yes, I will add it in my patch. Thanks. Thanks. Regards Aurelien -- Aurelien Jarno GPG: 4096R/1DDD8C9B aurelien@aurel32.net http://aurel32.net