linux-kernel - Re: [PATCH 4/6] mfd/ab8500: print switch off cause

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Message-ID: <20120501111629.GD20224@sortiz-mobl>
Date:	Tue, 1 May 2012 13:16:29 +0200
From:	Samuel Ortiz <sameo@...ux.intel.com>
To:	Linus Walleij <linus.walleij@...ricsson.com>
Cc:	linux-kernel@...r.kernel.org,
	Jonas Aaberg <jonas.aberg@...ricsson.com>,
	Linus Walleij <linus.walleij@...aro.org>
Subject: Re: [PATCH 4/6] mfd/ab8500: print switch off cause

Hi Linus,

On Tue, Apr 17, 2012 at 09:30:40AM +0200, Linus Walleij wrote:
> @@ -1139,7 +1149,20 @@ int __devinit ab8500_init(struct ab8500 *ab8500, enum ab8500_version version)
>  		AB8500_SWITCH_OFF_STATUS, &value);
>  	if (ret < 0)
>  		return ret;
> -	dev_info(ab8500->dev, "switch off status: %#x", value);
> +	dev_info(ab8500->dev, "switch off cause(s) (%#x): ", value);
> +
> +	if (value) {
> +		for (i = 0; i < ARRAY_SIZE(switch_off_status); i++) {
> +			if (value & 1)
> +				printk("\"%s\" ", switch_off_status[i]);
> +			value = value >> 1;
> +
> +		}
> +		printk("\n");
> +	} else {
> +		printk("None\n");
> +	}
So if your default loglevel is not KERN_INFO, you may miss the dev_info
output while getting the printk one. Why not using dev_info() only with e.g.
tabs for the causes ?

Cheers,
Samuel.

-- 
Intel Open Source Technology Centre
http://oss.intel.com/
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