linux-kernel - Re: [PATCH v4 03/14] regulator: of: Add regulator desc param to of_get_regulator_init

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Message-ID: <5457A3D2.1090602@collabora.co.uk>
Date:	Mon, 03 Nov 2014 16:48:34 +0100
From:	Javier Martinez Canillas <javier.martinez@...labora.co.uk>
To:	Mark Brown <broonie@...nel.org>
CC:	Kukjin Kim <kgene.kim@...sung.com>,
	Chanwoo Choi <cw00.choi@...sung.com>,
	Olof Johansson <olof@...om.net>,
	Chris Zhong <zyw@...k-chips.com>,
	Krzysztof Kozlowski <k.kozlowski@...sung.com>,
	Abhilash Kesavan <kesavan.abhilash@...il.com>,
	linux-samsung-soc@...r.kernel.org, linux-kernel@...r.kernel.org,
	devicetree@...r.kernel.org
Subject: Re: [PATCH v4 03/14] regulator: of: Add regulator desc param to of_get_regulator_init_data()

On 11/03/2014 04:33 PM, Mark Brown wrote:
> On Mon, Nov 03, 2014 at 03:40:38PM +0100, Javier Martinez Canillas wrote:
> 
>>  	for_each_child_of_node(nproot, np) {
>>  		if (!of_node_cmp(np->name, info->desc.name)) {
>>  			config->init_data =
>> -				of_get_regulator_init_data(&pdev->dev, np);
>> +				of_get_regulator_init_data(&pdev->dev, np,
>> +							   NULL);
> 
> This looks buggy, we're not passing in a descriptor.
> 

The descriptor is only used when extracting the init_data to map the
modes and since it was not a parameter before, some drivers needs to
be refactored to pass that information.

I thought that instead of adding intrusive changes in drivers that I
don't have hw to test, that parameter could be optional so the patch
that use that information check if the descriptor and the map_modes
function pointer are not NULL.

Best regards,
Javier
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