From: Tony Lindgren <tony@atomide.com>
To: Pavel Machek <pavel@ucw.cz>
Cc: Merlijn Wajer <merlijn@wizzup.org>,
linux-omap@vger.kernel.org, Sebastian Reichel <sre@kernel.org>,
linux-arm-kernel@lists.infradead.org
Subject: Re: [PATCH 2/8] ARM: OMAP2+: Drop bogus wkup domain oswr setting
Date: Wed, 16 Oct 2019 07:40:53 -0700 [thread overview]
Message-ID: <20191016144053.GC5610@atomide.com> (raw)
In-Reply-To: <20191013150744.GD13278@amd>
* Pavel Machek <pavel@ucw.cz> [191013 15:08]:
> Hi!
>
> > The wkup domain is always on and does not have logic off setting. This
> > got accidentally added by commit f74297dd9354 ("ARM: OMAP2+: Make sure
> > LOGICRETSTATE bits are not cleared") but is harmless.
> >
> > Cc: Merlijn Wajer <merlijn@wizzup.org>
> > Cc: Pavel Machek <pavel@ucw.cz>
> > Cc: Sebastian Reichel <sre@kernel.org>
> > Signed-off-by: Tony Lindgren <tony@atomide.com>
> > ---
> > arch/arm/mach-omap2/pm44xx.c | 3 +--
> > 1 file changed, 1 insertion(+), 2 deletions(-)
> >
> > diff --git a/arch/arm/mach-omap2/pm44xx.c b/arch/arm/mach-omap2/pm44xx.c
> > --- a/arch/arm/mach-omap2/pm44xx.c
> > +++ b/arch/arm/mach-omap2/pm44xx.c
> > @@ -137,8 +137,7 @@ static int __init pwrdms_setup(struct powerdomain *pwrdm, void *unused)
> > * smsc911x at least if per hits retention during idle.
> > */
> > if (!strncmp(pwrdm->name, "core", 4) ||
> > - !strncmp(pwrdm->name, "l4per", 5) ||
> > - !strncmp(pwrdm->name, "wkup", 4))
> > + !strncmp(pwrdm->name, "l4per", 5))
> > pwrdm_set_logic_retst(pwrdm, PWRDM_POWER_RET);
>
> This is rather theoretical, but if the powerdomain is called
> "corelation-not-causation", do you still want the if() to trigger?
No need to if no writable register bits exists if I understand
your theoretical comment right :)
Regards,
Tony
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next prev parent reply other threads:[~2019-10-16 14:41 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-10-10 0:12 [PATCH 0/8] Improve PM for omap4 devices Tony Lindgren
2019-10-10 0:12 ` [PATCH 1/8] ARM: OMAP2+: Remove unused wakeup_cpu Tony Lindgren
2019-10-13 11:38 ` Pavel Machek
2019-10-10 0:12 ` [PATCH 2/8] ARM: OMAP2+: Drop bogus wkup domain oswr setting Tony Lindgren
2019-10-13 15:07 ` Pavel Machek
2019-10-16 14:40 ` Tony Lindgren [this message]
2019-10-10 0:12 ` [PATCH 3/8] ARM: OMAP2+: Remove bogus warnings for machines without twl PMIC Tony Lindgren
2019-10-10 0:12 ` [PATCH 4/8] ARM: OMAP2+: Update 4430 voltage controller operating points Tony Lindgren
2019-10-10 0:12 ` [PATCH 5/8] ARM: OMAP2+: Configure voltage controller for cpcap Tony Lindgren
2019-10-13 14:46 ` Pavel Machek
2019-10-10 0:12 ` [PATCH 6/8] ARM: OMAP2+: Allow per oswr for omap4 Tony Lindgren
2019-10-10 0:12 ` [PATCH 7/8] ARM: OMAP2+: Allow core " Tony Lindgren
2019-10-13 15:08 ` Pavel Machek
2019-10-16 14:46 ` Tony Lindgren
2019-10-10 0:12 ` [PATCH 8/8] ARM: OMAP2+: Initialize voltage controller " Tony Lindgren
2019-10-13 15:08 ` Pavel Machek
2019-10-16 14:53 ` Tony Lindgren
2019-10-17 1:19 ` Tony Lindgren
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