linux-kernel - Re: [PATCH 1/4] mfd: smsc: Add support for smsc gpio io/keypad driver

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Message-ID: <20120821142007.GP7995@opensource.wolfsonmicro.com>
Date:	Tue, 21 Aug 2012 15:20:08 +0100
From:	Mark Brown <broonie@...nsource.wolfsonmicro.com>
To:	Felipe Balbi <balbi@...com>
Cc:	Sourav Poddar <sourav.poddar@...com>,
	devicetree-discuss@...ts.ozlabs.org,
	linux-arm-kernel@...ts.infradead.org, linux-omap@...r.kernel.org,
	linux-kernel@...r.kernel.org, linux-input@...r.kernel.org
Subject: Re: [PATCH 1/4] mfd: smsc: Add support for smsc gpio io/keypad driver

On Tue, Aug 21, 2012 at 05:09:24PM +0300, Felipe Balbi wrote:

> You can't possibly understand what that'll print. First of all, VEN_ID_H
> and VEN_ID_L should be ORed together. Second, the user will see the same
> message four times in a row, with different values, but see that driver
> claims that all four values refer to the device id. What this should do,
> is at least combine all four messages into a single one of the format:

> dev_(dbg|info)(&i2c->dev, "SMSCxxx devid: %02x rev: %02x venid: %02x\n",
> 	devid, rev, (venid_h << 8) | venid_l);

> or something similar.

Yes, I agree that the formatting here should also be improved - as I
said in one of my earlier mails if any of these things are fixed things
that should never change the driver should instead verify the value
rather than log it.

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