linux-kernel - Re: [PATCH] mfd: tps6586x: add api to power off tps6586x

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Date:	Mon, 22 Aug 2011 01:05:11 +0200
From:	Samuel Ortiz <sameo@...ux.intel.com>
To:	wni@...dia.com
Cc:	mike@...pulab.co.il, gking@...dia.com, nkumbhar@...dia.com,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] mfd: tps6586x: add api to power off tps6586x

Hi Wei,

On Thu, Jul 28, 2011 at 02:30:36PM +0800, wni@...dia.com wrote:
> +static struct i2c_client *tps6586x_i2c_client;
That's not vey nice. By doing so, you're preventing anyone to have more than
one of those chips in their boards.


> +int tps6586x_power_off(void)
> +{
> +	struct device *dev = NULL;
> +	int ret = -EINVAL;
> +
> +	if (!tps6586x_i2c_client)
> +		return ret;
> +
> +	dev = &tps6586x_i2c_client->dev;
> +
> +	ret = tps6586x_clr_bits(dev, TPS6586X_SUPPLYENE, EXITSLREQ_BIT);
> +	if (ret)
> +		return ret;
> +
> +	ret = tps6586x_set_bits(dev, TPS6586X_SUPPLYENE, SLEEP_MODE_BIT);
> +	if (ret)
> +		return ret;
> +
> +	return 0;
> +}
> +EXPORT_SYMBOL_GPL(tps6586x_power_off);
Who is going to call this one ?

Cheers,
Samuel.

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