From: Wolfram Sang <wsa@the-dreams.de>
To: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: linux-renesas-soc@vger.kernel.org,
"linux-gpio@vger.kernel.org" <linux-gpio@vger.kernel.org>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>
Subject: Re: Salvator-X ravb failure with v4.5-rc3 due to irqchip power down
Date: Mon, 8 Feb 2016 21:04:30 +0100 [thread overview]
Message-ID: <20160208200430.GB1997@tetsubishi> (raw)
In-Reply-To: <CAMuHMdUHiBfYDrA_=wq3DwyN1dOb-af_cuhCNaWZjvHSmMfg2Q@mail.gmail.com>
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> The real problem is that the PHY interrupt is wired to an on-chip GPIO
> controller, which is disabled by PM Runtime if no GPIOs are in use, and
> interrupts are not taken into account (the irqchip subsystem is not (yet) PM
> Runtime aware) for GPIO use.
>
> Adding a call to
>
> pm_runtime_get_sync(dev);
>
> to gpio_rcar_probe() fixes the problem, but keeps the GPIO modules enabled
> all the time.
>
> IIRC, we have a similar issue with HDMI on r8a7791/koelsch...
Exactly, the interrupt for 'EDID read done' never arrived because of
this.
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prev parent reply other threads:[~2016-02-08 20:04 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-02-08 18:31 Salvator-X ravb failure with v4.5-rc3 due to irqchip power down Geert Uytterhoeven
2016-02-08 20:04 ` Wolfram Sang [this message]
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