linux-kernel - Re: [PATCH 14/14] mfd: Add WM8350 subdevice registration helper

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Date:	Sat, 11 Oct 2008 16:18:20 +0200
From:	Samuel Ortiz <sameo@...nedhand.com>
To:	Mark Brown <broonie@...nsource.wolfsonmicro.com>
Cc:	Liam Girdwood <lrg@...nel.org>, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 14/14] mfd: Add WM8350 subdevice registration helper

On Fri, Oct 10, 2008 at 03:58:16PM +0100, Mark Brown wrote:
> Most of the subdevices for the WM8350 code are registered in the same
> fashion so factor out the code to do the initial registration.
Out of curiosity (and also because I would like to start working on improving
mfd-core), why didnt you consider using the mfd-core API ?

Cheers,
Samuel.


> Signed-off-by: Mark Brown <broonie@...nsource.wolfsonmicro.com>
> ---
>  drivers/mfd/wm8350-core.c |   26 ++++++++++++++++++++++++++
>  1 files changed, 26 insertions(+), 0 deletions(-)
> 
> diff --git a/drivers/mfd/wm8350-core.c b/drivers/mfd/wm8350-core.c
> index 9a1a0b2..cd1f76e 100644
> --- a/drivers/mfd/wm8350-core.c
> +++ b/drivers/mfd/wm8350-core.c
> @@ -1130,6 +1130,32 @@ out:
>  }
>  EXPORT_SYMBOL_GPL(wm8350_create_cache);
>  
> +/*
> + * Register a client device.  This is non-fatal since there is no need to
> + * fail the entire device init due to a single platform device failing.
> + */
> +static void wm8350_client_dev_register(struct wm8350 *wm8350,
> +				       const char *name,
> +				       struct platform_device **pdev)
> +{
> +	int ret;
> +
> +	*pdev = platform_device_alloc(name, -1);
> +	if (pdev == NULL) {
> +		dev_err(wm8350->dev, "Failed to allocate %s\n", name);
> +		return;
> +	}
> +
> +	(*pdev)->dev.parent = wm8350->dev;
> +	platform_set_drvdata(*pdev, wm8350);
> +	ret = platform_device_add(*pdev);
> +	if (ret != 0) {
> +		dev_err(wm8350->dev, "Failed to register %s: %d\n", name, ret);
> +		platform_device_put(*pdev);
> +		*pdev = NULL;
> +	}
> +}
> +
>  int wm8350_device_init(struct wm8350 *wm8350, int irq,
>  		       struct wm8350_platform_data *pdata)
>  {
> -- 
> 1.5.6.5
> 

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