From: Philipp Zabel <p.zabel@pengutronix.de>
To: dinguyen@opensource.altera.com
Cc: dinh.linux@gmail.com, s.trumtrar@pengutronix.de,
grant.likely@linaro.org, robh+dt@kernel.org,
atull@opensource.altera.com, devicetree@vger.kernel.org,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH] reset: socfpga: use arch_initcall for early initialization
Date: Thu, 09 Oct 2014 11:03:30 +0200 [thread overview]
Message-ID: <1412845410.6809.3.camel@pengutronix.de> (raw)
In-Reply-To: <1412822646-11257-1-git-send-email-dinguyen@opensource.altera.com>
Am Mittwoch, den 08.10.2014, 21:44 -0500 schrieb
dinguyen@opensource.altera.com:
> From: Dinh Nguyen <dinguyen@opensource.altera.com>
>
> There are certain drivers that are required to get loaded very early using
> arch_initcall. An example of such a driver is the SOCFPGA's FPGA bridge driver.
> This driver has to get loaded early because it needs to enable FPGA components
> that are connected to the bridge.
>
> This FPGA bridge driver will using the reset controller API to toggle it's
> reset bits, thus, it needs the reset driver to be loaded as early as possible
> in order for it to get used properly.
Without knowing the details, this sounds like the wrong approach. Can't
the bridge driver return -EPROBE_DEFER until the reset controller is
available?
regards
Philipp
next prev parent reply other threads:[~2014-10-09 9:05 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-10-09 2:44 dinguyen
2014-10-09 9:03 ` Philipp Zabel [this message]
2014-10-09 13:16 ` Dinh Nguyen
2014-10-09 13:28 ` Steffen Trumtrar
2014-10-09 14:57 ` atull
2014-10-09 15:19 ` Steffen Trumtrar
2014-10-10 16:32 ` atull
2014-10-14 18:45 ` atull
2014-10-15 10:02 ` Steffen Trumtrar
2014-10-15 13:53 ` Dinh Nguyen
2014-10-18 9:22 ` Arnd Bergmann
2014-10-12 14:30 ` Pavel Machek
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