linux-kernel - Re: [PATCH v1 1/2] clk: starfive: Fix RESET_STARFIVE_JH7110 can't be selected in a specified case

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Message-ID: <20230417-bolster-vitality-89d279146497@wendy>
Date:   Mon, 17 Apr 2023 11:18:35 +0100
From:   Conor Dooley <conor.dooley@...rochip.com>
To:     Hal Feng <hal.feng@...rfivetech.com>
CC:     <linux-clk@...r.kernel.org>, <oe-kbuild-all@...ts.linux.dev>,
        <linux-mm@...ck.org>, Stephen Boyd <sboyd@...nel.org>,
        Michael Turquette <mturquette@...libre.com>,
        Paul Gazzillo <paul@...zz.com>,
        Necip Fazil Yildiran <fazilyildiran@...il.com>,
        Emil Renner Berthing <emil.renner.berthing@...onical.com>,
        Xingyu Wu <xingyu.wu@...rfivetech.com>,
        <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v1 1/2] clk: starfive: Fix RESET_STARFIVE_JH7110 can't be
 selected in a specified case

On Mon, Apr 17, 2023 at 06:06:29PM +0800, Hal Feng wrote:
> On Mon, 17 Apr 2023 10:54:09 +0100, Conor Dooley wrote:
> > On Mon, Apr 17, 2023 at 03:41:14PM +0800, Hal Feng wrote:
> >> When (ARCH_STARFIVE [=n] && COMPILE_TEST [=y] && RESET_CONTROLLER [=n]),
> >> RESET_STARFIVE_JH7110 can't be selected by CLK_STARFIVE_JH7110_SYS
> >> and CLK_STARFIVE_JH7110_AON.
> >> 
> >> Considering RESET_STARFIVE_JH7110 is not a necessary option for compilation
> >> test, we should select it only if ARCH_STARFIVE=y. Also, delete redundant
> >> selected options of CLK_STARFIVE_JH7110_AON because these options are
> >> already selected by the dependency.
> >> 
> >> Fixes: edab7204afe5 ("clk: starfive: Add StarFive JH7110 system clock driver")
> >> Fixes: b2ab3c94f41f ("clk: starfive: Add StarFive JH7110 always-on clock driver")
> >> Signed-off-by: Hal Feng <hal.feng@...rfivetech.com>
> >> ---
> >>  drivers/clk/starfive/Kconfig | 5 +----
> >>  1 file changed, 1 insertion(+), 4 deletions(-)
> >> 
> >> diff --git a/drivers/clk/starfive/Kconfig b/drivers/clk/starfive/Kconfig
> >> index 71c1148ee5f6..3fad4adee841 100644
> >> --- a/drivers/clk/starfive/Kconfig
> >> +++ b/drivers/clk/starfive/Kconfig
> >> @@ -26,7 +26,7 @@ config CLK_STARFIVE_JH7110_SYS
> >>  	depends on ARCH_STARFIVE || COMPILE_TEST
> >>  	select AUXILIARY_BUS
> >>  	select CLK_STARFIVE_JH71X0
> >> -	select RESET_STARFIVE_JH7110
> >> +	select RESET_STARFIVE_JH7110 if ARCH_STARFIVE
> > 
> > Hmm, I don't really follow the logic above.
> > Why not just make the if be `if RESET_CONTROLLER` rather than
> > ARCH_STARFIVE?
> > I'm probably missing some obvious reason why not.
> 
> Note that RESET_CONTROLLER is selected by ARCH_STARFIVE. Thanks.

Aye, just the explicit dependency seems like it'd be less fragile and
more obvious in the future.

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