From: u.kleine-koenig@pengutronix.de (Uwe Kleine-König)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH 4/4] regulator: mc13783 change to platform_driver_register.
Date: Sun, 13 Dec 2009 21:05:09 +0100 [thread overview]
Message-ID: <20091213200509.GD14024@pengutronix.de> (raw)
In-Reply-To: <1260637577.2054.43.camel@climbing-alby>
Hello,
On Sat, Dec 12, 2009 at 06:06:17PM +0100, Alberto Panizzo wrote:
> Change the instant when regulator driver is probed.
> To have a correct regulators initialisation (enable, disable and voltages
> selection), the driver must have access to mc13783 registers and so
> mc13783-core must be loaded before this.
>
> With this patch mc13783_regulator_probe is called when mc13783-core
> register the regulator subsystem.
>
> Signed-off-by: Alberto Panizzo <maramaopercheseimorto@gmail.com>
I think the change is OK, the commit log isn't optimal though.
You might want to point out that the problem only occurs if the driver
is built-in and that mc13783_regulator_probe doesn't need to be changed
as it already lives in .devinit.text
As if mc13783-regulator is built-in mc13783-core is built-in, too, the
wording isn't good. The problem is (I suppose) that regulators are
linked first and so mc13783-core isn't *probed* early enough and so the
mc13783-regulator device isn't available at mc13783-regulator probing
time.
Best regards
Uwe
--
Pengutronix e.K. | Uwe Kleine-K?nig |
Industrial Linux Solutions | http://www.pengutronix.de/ |
next prev parent reply other threads:[~2009-12-13 20:05 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-12-12 16:37 [PATCH 0/4] Patch series for introduce voltage selecting for mc13783 regulators Alberto Panizzo
2009-12-12 16:48 ` [PATCH 1/4] mfd: mc13783: Take care of semantic inversion between read and write value of two bits in POWER_MISCELLANEUS register Alberto Panizzo
2009-12-12 16:53 ` [PATCH 2/4] mfd: mc13783: When probing, unlock the mc13783 before subsystems initialisation Alberto Panizzo
2009-12-12 16:56 ` [PATCH 3/4] regulator: add voltage selection capability to mc13783 regulators Alberto Panizzo
2009-12-12 17:06 ` [PATCH 4/4] regulator: mc13783 change to platform_driver_register Alberto Panizzo
2009-12-12 18:23 ` Mark Brown
2009-12-13 20:05 ` Uwe Kleine-König [this message]
2009-12-14 10:59 ` Alberto Panizzo
2009-12-12 18:22 ` [PATCH 3/4] regulator: add voltage selection capability to mc13783 regulators Mark Brown
2009-12-13 20:01 ` Uwe Kleine-König
2009-12-14 10:41 ` Alberto Panizzo
2009-12-14 11:04 ` Mark Brown
2009-12-13 19:57 ` [PATCH 2/4] mfd: mc13783: When probing, unlock the mc13783 before subsystems initialisation Uwe Kleine-König
2009-12-12 18:11 ` [PATCH 1/4] mfd: mc13783: Take care of semantic inversion between read and write value of two bits in POWER_MISCELLANEUS register Mark Brown
2009-12-13 19:56 ` Uwe Kleine-König
2009-12-14 10:14 ` Alberto Panizzo
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