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From: Grant Likely <grant.likely@secretlab.ca>
To: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: avorontsov@ru.mvista.com, David Brownell <david-b@pacbell.net>,
David Brownell <dbrownell@users.sourceforge.net>,
linux-kernel@vger.kernel.org, linuxppc-dev@ozlabs.org,
i2c@lm-sensors.org, Jean Delvare <khali@linux-fr.org>,
David Miller <davem@davemloft.net>
Subject: Re: [PATCH 4/7] gpiolib: implement dev_gpiochip_{add,remove} calls
Date: Tue, 21 Oct 2008 22:20:22 -0600 [thread overview]
Message-ID: <20081022042022.GB7176@secretlab.ca> (raw)
In-Reply-To: <1224642497.7654.319.camel@pasglop>
On Wed, Oct 22, 2008 at 01:28:17PM +1100, Benjamin Herrenschmidt wrote:
> On Wed, 2008-10-22 at 05:42 +0400, Anton Vorontsov wrote:
> >
> > Thinking about it more, I started recalling other issues. The bus
> > notifier chain doesn't replay previous events, so we also have to
> > register the notifier before the _devices_ are registered. And this
> > ruins the whole approach. :-/ Yeah, that's why I abandoned the bus
> > notifier idea.
>
> The notifier can be registered before the devices, though it's a little
> bit fishy and fragile.
>
> Easier I suppose to just have OF specific hooks in the bus code.
Every time I think about the problem, this is the conclusion that I come
to. Either have OF specific hooks in the probe/remove functions; or
have separate probe/remove for OF created instances of a device.
g.
next prev parent reply other threads:[~2008-10-22 4:20 UTC|newest]
Thread overview: 52+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-10-16 17:12 [PATCH 0/7 RFC] Handle I2C GPIO controllers with the OF (was: pca9539 I2C gpio expander) Anton Vorontsov
2008-10-16 17:12 ` [PATCH 1/7] powerpc and sparc: introduce dev_archdata node accessors Anton Vorontsov
2008-10-16 22:36 ` David Miller
2008-10-16 23:02 ` Grant Likely
2008-10-16 17:12 ` [PATCH 2/7] i2c: add info->archdata field Anton Vorontsov
2008-10-17 9:21 ` Jean Delvare
2008-10-22 0:27 ` Benjamin Herrenschmidt
2008-10-22 6:50 ` Jean Delvare
2008-10-22 7:37 ` Benjamin Herrenschmidt
2008-10-22 10:08 ` Anton Vorontsov
2008-10-22 11:07 ` Jean Delvare
2008-10-22 12:50 ` Anton Vorontsov
2008-10-16 17:12 ` [PATCH 3/7] of: fill the archdata for I2C devices Anton Vorontsov
2008-10-22 4:14 ` Grant Likely
2008-10-16 17:12 ` [PATCH 4/7] gpiolib: implement dev_gpiochip_{add,remove} calls Anton Vorontsov
2008-10-17 20:24 ` David Brownell
2008-10-17 21:29 ` Anton Vorontsov
2008-10-20 7:29 ` David Brownell
2008-10-20 15:48 ` Anton Vorontsov
2008-10-22 0:29 ` Benjamin Herrenschmidt
2008-10-22 1:03 ` Anton Vorontsov
2008-10-22 1:42 ` Anton Vorontsov
2008-10-22 2:28 ` Benjamin Herrenschmidt
2008-10-22 4:20 ` Grant Likely [this message]
2008-10-22 4:22 ` David Brownell
2008-10-22 10:36 ` Anton Vorontsov
2008-10-22 10:46 ` Anton Vorontsov
2008-10-22 18:32 ` Anton Vorontsov
2008-10-22 21:04 ` David Brownell
2008-10-22 21:22 ` Anton Vorontsov
2008-10-22 21:52 ` David Brownell
2008-10-22 22:29 ` Anton Vorontsov
2008-10-23 5:19 ` David Brownell
2008-10-23 4:45 ` Benjamin Herrenschmidt
2008-10-23 6:06 ` David Brownell
2008-10-23 6:15 ` David Brownell
2008-10-28 17:45 ` [PATCH 0/6 RFC] OF-glue devices for I2C/SPI (was: " Anton Vorontsov
2008-10-28 17:46 ` [PATCH 1/6] of/base: Add new helper of_should_create_pdev() Anton Vorontsov
2008-10-28 17:46 ` [PATCH 2/6] of/of_i2c: implement of_{,un}register_i2c_device Anton Vorontsov
2008-10-28 17:46 ` [PATCH 3/6] of/of_i2c: add support for dedicated OF I2C devices Anton Vorontsov
2008-10-28 18:41 ` David Miller
2008-10-28 17:46 ` [PATCH 4/6] of/gpio: add support for two-stage registration for the of_gpio_chips Anton Vorontsov
2008-10-28 17:46 ` [PATCH 5/6] gpio/pca953x: pass gpio_chip pointer to the setup/teardown callbacks Anton Vorontsov
2008-10-28 17:46 ` [PATCH 6/6] gpio: OpenFirmware bindings for the pca953x Anton Vorontsov
2008-10-28 17:53 ` [PATCH 0/6 RFC] OF-glue devices for I2C/SPI (was: Re: [PATCH 4/7] gpiolib: implement dev_gpiochip_{add,remove} calls Grant Likely
2008-10-22 2:27 ` Benjamin Herrenschmidt
2008-10-16 17:13 ` [PATCH 5/7] of/gpio: implement of_dev_gpiochip_{add,remove} calls Anton Vorontsov
2008-10-17 20:25 ` David Brownell
2008-10-17 21:13 ` Anton Vorontsov
2008-10-16 17:13 ` [PATCH 6/7] gpio/pca953x: convert to dev_gpiochip_add and make it work with the OF Anton Vorontsov
2008-10-16 17:13 ` [PATCH 7/7] i2c/mcu_mpc8349emitx: convert to the new I2C/OF/GPIO infrastructure Anton Vorontsov
2008-10-17 16:07 ` [PATCH 0/7 RFC] Handle I2C GPIO controllers with the OF (was: pca9539 I2C gpio expander) Steven A. Falco
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