netdev - Re: [PATCH 1/2] net: davinci_mdio: enable and disable clock

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Message-ID: <20120802195308.GZ6802@n2100.arm.linux.org.uk>
Date:	Thu, 2 Aug 2012 20:53:08 +0100
From:	Russell King - ARM Linux <linux@....linux.org.uk>
To:	Daniel Mack <zonque@...il.com>
Cc:	netdev@...r.kernel.org, mugunthanvnm@...com, paul@...an.com,
	devicetree-discuss@...ts.ozlabs.org, koen@...inion.thruhere.net,
	linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH 1/2] net: davinci_mdio: enable and disable clock

On Thu, Aug 02, 2012 at 09:43:35PM +0200, Daniel Mack wrote:
> Make the driver control the device clocks. Appearantly, the Davinci
> platform probes this driver with the clock all powered up, but on OMAP,
> this isn't the case.

Hmm, this looks like it could do with improvement, especially as we're
moving everything over to a common clk API.

1. This driver could do with clk_prepare()/clk_unprepare() calls.
2. This driver should not be making the assumption that NULL means
   it can avoid clk_* calls.  It should instead be using
	if (!IS_ERR(clk))

Thanks.
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