linux-kernel - Re: [PATCH v3 06/18] regulator: core: Probe regulators on demand

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Date:	Fri, 7 Aug 2015 13:09:06 +0100
From:	Mark Brown <broonie@...nel.org>
To:	Tomeu Vizoso <tomeu.vizoso@...labora.com>
Cc:	linux-kernel@...r.kernel.org, Rob Herring <robh+dt@...nel.org>,
	Stephen Warren <swarren@...dotorg.org>,
	Javier Martinez Canillas <javier@....samsung.com>,
	Thierry Reding <thierry.reding@...il.com>,
	"Rafael J. Wysocki" <rjw@...ysocki.net>,
	linux-arm-kernel@...ts.infradead.org,
	Dmitry Torokhov <dmitry.torokhov@...il.com>,
	devicetree@...r.kernel.org,
	Linus Walleij <linus.walleij@...aro.org>,
	linux-acpi@...r.kernel.org, Arnd Bergmann <arnd@...db.de>
Subject: Re: [PATCH v3 06/18] regulator: core: Probe regulators on demand

On Thu, Aug 06, 2015 at 04:11:43PM +0200, Tomeu Vizoso wrote:

> When looking up a regulator through its OF node, probe it if it hasn't
> already.
> 
> The goal is to reduce deferred probes to a minimum, as it makes it very
> cumbersome to find out why a device failed to probe, and can introduce
> very big delays in when a critical device is probed.

Still the same problem as we had before with this stuff, why is this DT
only?

>  #include <linux/regulator/consumer.h>
> @@ -1336,6 +1337,7 @@ static struct regulator_dev *regulator_dev_lookup(struct device *dev,
>  	if (dev && dev->of_node) {
>  		node = of_get_regulator(dev, supply);
>  		if (node) {
> +			of_platform_probe(node);

And why the assumption that this is a platform device?

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