From: linux@arm.linux.org.uk (Russell King - ARM Linux)
To: linux-arm-kernel@lists.infradead.org
Subject: [RFC] ARM: dts: imx27-pdk: Add PMIC support
Date: Tue, 15 Apr 2014 22:33:26 +0100 [thread overview]
Message-ID: <20140415213326.GY24070@n2100.arm.linux.org.uk> (raw)
In-Reply-To: <1397596027-14301-1-git-send-email-festevam@gmail.com>
On Tue, Apr 15, 2014 at 06:07:07PM -0300, Fabio Estevam wrote:
> From: Fabio Estevam <fabio.estevam@freescale.com>
>
> Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
> ---
> Hi,
>
> I am sending it as RFC because I am getting the warning below.
>
> Booting the non-dt kernel does not cause this warning.
>
> Appreciate any comments/suggestions.
Quite simply, the driver is buggy. You seem to be getting an interrupt
delivered to the thread right after the IRQ is requested:
ret = request_threaded_irq(mc13xxx->irq, NULL, mc13xxx_irq_thread,
IRQF_ONESHOT | IRQF_TRIGGER_HIGH, "mc13xxx", mc13xxx);
if (ret)
return ret;
mutex_init(&mc13xxx->lock);
and the thread tries to lock mc13xxx->lock.
There's nothing quite like initialising resources before using them...
--
FTTC broadband for 0.8mile line: now at 9.7Mbps down 460kbps up... slowly
improving, and getting towards what was expected from it.
next prev parent reply other threads:[~2014-04-15 21:33 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-04-15 21:07 [RFC] ARM: dts: imx27-pdk: Add PMIC support Fabio Estevam
2014-04-15 21:33 ` Russell King - ARM Linux [this message]
2014-04-15 21:36 ` Fabio Estevam
2014-04-16 3:54 ` Alexander Shiyan
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