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	 <20091127145426.GA6135@oksana.dev.rtsoft.ru>
Date: Fri, 27 Nov 2009 17:47:40 +0200
Message-ID: <6ed0b2680911270747k4bd5610eg1e0ef83c41622bba@mail.gmail.com>
Subject: Re: [PATCH] power_supply: Add driver for TWL4030/TPS65950 BCI charger
From: Grazvydas Ignotas <notasas@gmail.com>
To: avorontsov@ru.mvista.com
Cc: linux-kernel@vger.kernel.org, Madhusudhan Chikkature <madhu.cr@ti.com>,
       linux-omap@vger.kernel.org
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--0016e6d7e89a3fe75d04795c366c
Content-Type: text/plain; charset=ISO-8859-1
Content-Transfer-Encoding: quoted-printable

On Fri, Nov 27, 2009 at 4:54 PM, Anton Vorontsov
<avorontsov@ru.mvista.com> wrote:
> On Fri, Nov 27, 2009 at 04:44:20PM +0200, Grazvydas Ignotas wrote:
>> TWL4030/TPS65950 is a multi-function device with integrated charger,
>> which allows charging from AC or USB. This driver enables the
>> charger and provides several monitoring functions.
>>
>> Signed-off-by: Grazvydas Ignotas <notasas@gmail.com>
>> ---
>
> Thanks for the patch.
>
> [...]
>> +/*
>> + * Attend to TWL4030 CHG_PRES (AC charger presence) events
>> + */
>> +static irqreturn_t twl4030_charger_interrupt(int irq, void *_di)
>> +{
>> + =A0 =A0 struct twl4030_bci_device_info *di =3D _di;
>> +
>> +#ifdef CONFIG_LOCKDEP
>> + =A0 =A0 /* WORKAROUND for lockdep forcing IRQF_DISABLED on us, which
>> + =A0 =A0 =A0* we don't want and can't tolerate. =A0Although it might be
>> + =A0 =A0 =A0* friendlier not to borrow this thread context...
>> + =A0 =A0 =A0*/
>> + =A0 =A0 local_irq_enable();
>> +#endif
>
> Can you explain why the driver can't tolerate disabled irqs?
> Calling schedule_delayed_work() from an irq context should be OK.

Ah, this is leftover from TI code this driver is based on, which used
to do more things directly in interrupt handler. So I guess it can be
removed, updated patch attached.

>
>> + =A0 =A0 schedule_delayed_work(&di->bat_work, msecs_to_jiffies(BCI_DELA=
Y));
>> +
>> + =A0 =A0 return IRQ_HANDLED;
>> +}
>
> --
> Anton Vorontsov
> email: cbouatmailru@gmail.com
> irc://irc.freenode.net/bd2
>

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	name="0001-power_supply-Add-driver-for-TWL4030-TPS65950-BCI-cha.patch"
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