linux-kernel - Re: [PATCH] mfd: syscon: Allow to using subdevices

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Date:	Thu, 14 Nov 2013 14:44:56 +0000
From:	Lee Jones <lee.jones@...aro.org>
To:	Alexander Shiyan <shc_work@...l.ru>
Cc:	linux-kernel@...r.kernel.org, devicetree@...r.kernel.org,
	Samuel Ortiz <sameo@...ux.intel.com>,
	Grant Likely <grant.likely@...aro.org>,
	Rob Herring <rob.herring@...xeda.com>
Subject: Re: [PATCH] mfd: syscon: Allow to using subdevices

> This patch adds support for using subdevices within syscon node.
> Primary usage of this is describe all devices with same memory
> region in one container.

Can you show me an example where people have placed devices as
children to syscon?

> Signed-off-by: Alexander Shiyan <shc_work@...l.ru>
> ---
>  drivers/mfd/syscon.c | 3 +++
>  1 file changed, 3 insertions(+)
> 
> diff --git a/drivers/mfd/syscon.c b/drivers/mfd/syscon.c
> index 71841f9..6e9244a 100644
> --- a/drivers/mfd/syscon.c
> +++ b/drivers/mfd/syscon.c
> @@ -152,6 +152,9 @@ static int syscon_probe(struct platform_device *pdev)
>  
>  	platform_set_drvdata(pdev, syscon);
>  
> +	if (of_platform_populate(dev->of_node, NULL, NULL, dev))
> +		dev_warn(dev, "Fail to create subdevices\n");
> +
>  	dev_info(dev, "regmap %pR registered\n", res);
>  
>  	return 0;
> -- 
> 1.8.1.5
> 

-- 
Lee Jones
Linaro STMicroelectronics Landing Team Lead
Linaro.org │ Open source software for ARM SoCs
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