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Date:   Tue, 25 Sep 2018 07:26:36 +0200
From:   Andreas Kemnade <andreas@kemnade.info>
To:     Tony Lindgren <tony@atomide.com>
Cc:     =?ISO-8859-1?Q?Beno=EEt?= Cousson <bcousson@baylibre.com>,
        Rob Herring <robh+dt@kernel.org>,
        Mark Rutland <mark.rutland@arm.com>,
        linux-omap@vger.kernel.org, devicetree@vger.kernel.org,
        linux-kernel@vger.kernel.org, letux-kernel@openphoenux.org
Subject: Re: [PATCH] ARM: dts: gta04: add serial console wakeup irq
Message-ID: <20180925072550.424e82e7@kemnade.info>
In-Reply-To: <20180924220345.GG5662@atomide.com>
References: <20180923150719.8211-1-andreas@kemnade.info>
        <20180924220345.GG5662@atomide.com>
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Hi Tony,

On Mon, 24 Sep 2018 15:03:45 -0700
Tony Lindgren <tony@atomide.com> wrote:

> * Andreas Kemnade <andreas@kemnade.info> [180923 08:12]:
> > This enables the possibility to have more aggressive runtime pm
> > by providing proper wakeup irq for the serial console. =20
>=20
> Thanks applying to omap-for-v4.20/dt.
>=20
> FYI, you can now grep wake /proc/interrupts and see the
> wakeirq counts increase when they trigger. Might be handy
> for debugging PM stuff.
>=20
thanks for that information, you also had a patch for checking
pm which was explicitely marked as not-to-merge. Is there
any up-to-date version of it?

Well, for debugging I check first average currents via bq27000
attached to omap_hdq. omap_hdq gets stuck after first transaction
after idling uarts which does not happen when CM_AUTOIDLE1_CORE.AUTO_HDQ
is cleared. Reloading the omap_hdq module to try to fix things
makes w1 really freak out (patch already sent for that).
Well, will do some rtfm and hopefully come back with a patch.
afaicr there was something special...
The result are power management problem in /dev/brain ;-)

Regards,
Andreas

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