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From: "Heiko Stübner" <heiko-4mtYJXux2i+zQB+pC5nmwQ@public.gmane.org>
To: Linus Walleij <linus.walleij-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>
Cc: Marc Zyngier <marc.zyngier-5wv7dgnIgG8@public.gmane.org>,
	"open list:GPIO SUBSYSTEM"
	<linux-gpio-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>,
	Florian Fainelli
	<f.fainelli-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>,
	Doug Anderson <dianders-F7+t8E8rja9g9hUCZPvPmw@public.gmane.org>,
	"open list:ARM/Rockchip SoC..."
	<linux-rockchip-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org>
Subject: Re: [PATCH] pinctrl/rockchip: Don't call pinctrl_force_* for nothing
Date: Thu, 01 Mar 2018 10:52:12 +0100	[thread overview]
Message-ID: <8494129.Zhd8RdA9ep@diego> (raw)
In-Reply-To: <CACRpkdaBbH_2KiQdrE9yZfJd0c97rTr_tF7vhSA_vCJF0L_sGw-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>

Hi Linus,

Am Donnerstag, 1. März 2018, 10:32:22 CET schrieb Linus Walleij:
> On Sat, Feb 24, 2018 at 9:07 PM, Marc Zyngier <marc.zyngier-5wv7dgnIgG8@public.gmane.org> wrote:
> > The rockchip pinctl driver calls pinctrl_force_default and
> > pinctrl_force_sleep on suspend resume, but seems to expect
> > that the outcome of these calls will be that nothing happens,
> > as the core code checks whether we're already in the right
> > state or not.
> > 
> > Or at least, that was what the core code was doing until
> > 981ed1bfbc ("pinctrl: Really force states during suspend/resume"),
> > which gives the "force" qualifier its actual meaning.
> > 
> > In turn, this breaks suspend/resume on the rk3399. So let's
> > change the rockchip code to do what it should have done from
> > the very begining, which is exactly *nothing*.
> > 
> > We take this opportunity to tidy-up the RK3288 GPIO6_C6 mux
> > resume workaround, making it symetrical to the suspend path.
> > 
> > Tested on a rk3399-based kevin Chromebook.
> > 
> > Fixes: 9198f509c888 ("pinctrl: rockchip: add suspend/resume functions")
> > Signed-off-by: Marc Zyngier <marc.zyngier-5wv7dgnIgG8@public.gmane.org>
> 
> I assume I should drop this patch for now and that
> Dough's long DTS patch with the long explanation was the
> right solution to the problem?

Correct this patch is not needed.

Thanks
Heiko

      parent reply	other threads:[~2018-03-01  9:52 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-02-24 20:07 [PATCH] pinctrl/rockchip: Don't call pinctrl_force_* for nothing Marc Zyngier
     [not found] ` <20180224200732.6116-1-marc.zyngier-5wv7dgnIgG8@public.gmane.org>
2018-02-27  3:37   ` Florian Fainelli
2018-02-27 15:05   ` Heiko Stuebner
2018-02-27 18:47     ` Doug Anderson
     [not found]       ` <CAD=FV=XDc9Npn-ZensiYSPy6gVs81oGfnL+Q=_hpHRT+FgKc7g-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2018-02-27 19:06         ` Marc Zyngier
     [not found]           ` <24eb9ab9-e5b5-5f31-036a-a72cb6e8c300-5wv7dgnIgG8@public.gmane.org>
2018-02-27 20:51             ` Doug Anderson
2018-03-01  9:32   ` Linus Walleij
     [not found]     ` <CACRpkdaBbH_2KiQdrE9yZfJd0c97rTr_tF7vhSA_vCJF0L_sGw-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2018-03-01  9:40       ` Marc Zyngier
2018-03-01  9:52       ` Heiko Stübner [this message]

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