linux-kernel - Re: [PATCH v2 7/7] MFD: TWL6040: Add regulator support for VIO, V2V1 supplies

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Date:	Tue, 7 Feb 2012 13:16:57 +0000
From:	Mark Brown <broonie@...nsource.wolfsonmicro.com>
To:	Peter Ujfalusi <peter.ujfalusi@...com>
Cc:	Samuel Ortiz <sameo@...ux.intel.com>,
	Tony Lindgren <tony@...mide.com>,
	Santosh Shilimkar <santosh.shilimkar@...com>,
	Liam Girdwood <lrg@...com>, Dmitry Torokhov <dtor@...l.ru>,
	Misael Lopez Cruz <misael.lopez@...com>,
	linux-kernel@...r.kernel.org, linux-omap@...r.kernel.org,
	alsa-devel@...a-project.org, linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH v2 7/7] MFD: TWL6040: Add regulator support for VIO, V2V1
 supplies

On Tue, Feb 07, 2012 at 03:01:18PM +0200, Peter Ujfalusi wrote:
> twl6040 has three power supply source:
> VBAT needs to be connected to VBAT, VIO, and V2V1.
> Add regulator support for the VIO, V2V1 supplies.
> Initially handle the two supply together with bulk commands.

> Signed-off-by: Peter Ujfalusi <peter.ujfalusi@...com>

Reviewed-by: Mark Brown <broonie@...nsource.wolfsonmicro.com>

> +	twl6040->supplies = devm_kzalloc(&client->dev,
> +					 sizeof(struct regulator_bulk_data) *
> +					 TWL6040_NUM_SUPPLIES, GFP_KERNEL);
> +	if (!twl6040->supplies) {
> +		ret = -ENOMEM;
> +		goto err;
> +	}
> +

though I'd be inclined to just embed this structure into the twl6040
struct directly, you're always going to need to allocate it and it saves
a tiny bit of error handling and whatnot.

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