linux-kernel - Re: [PATCH v2 2/2] regulator: add device tree support for max8997

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Date:	Wed, 25 Jan 2012 10:55:49 +0100
From:	Karol Lewandowski <k.lewandowsk@...sung.com>
To:	Thomas Abraham <thomas.abraham@...aro.org>
Cc:	linux-kernel@...r.kernel.org, rpurdie@...ys.net,
	rob.herring@...xeda.com, grant.likely@...retlab.ca,
	kgene.kim@...sung.com, broonie@...nsource.wolfsonmicro.com,
	myungjoo.ham@...sung.com, kyungmin.park@...sung.com,
	dg77.kim@...sung.com, linux-arm-kernel@...ts.infradead.org,
	linux-samsung-soc@...r.kernel.org, Rajendra Nayak <rnayak@...com>
Subject: Re: [PATCH v2 2/2] regulator: add device tree support for max8997

On 12.01.2012 08:35, Thomas Abraham wrote:
> Add device tree based discovery support for max8997.

> +static int max8997_pmic_dt_parse_pdata(struct max8997_dev *iodev,
> +					struct max8997_platform_data *pdata)
> +{

> +	pdata->regulators = rdata;
> +	for_each_child_of_node(regulators_np, reg_np) {
> +		for (i = 0; i<  ARRAY_SIZE(regulators); i++)
> +			if (!of_node_cmp(reg_np->name, regulators[i].name))
> +				break;
> +		rdata->id = i;
> +		rdata->initdata = of_get_regulator_init_data(
> +						iodev->dev, reg_np);

One more thing - of_get_regulator_init_data() will set apply_uV to 1 so 
we need to reset it for BUCK6, which doesn't provide set_voltage() ops, 
like:

	if (rdata->initdata && regulators[i].id == MAX8997_BUCK6)
		rdata->initdata->constraints.apply_uV = 0;

Thanks
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