[PATCH 1/4] mfd: syscon: Introduce syscon_base_lookup_by_phandle() function

[Sascha Hauer]

On Thu, Jan 23, 2014 at 09:22:04PM +0400, Alexander Shiyan wrote:
> Signed-off-by: Alexander Shiyan <shc_work at mail.ru>

Applied this series.

Thanks
 Sascha

> ---
>  drivers/mfd/syscon.c | 20 ++++++++++++++++++++
>  include/mfd/syscon.h |  8 ++++++++
>  2 files changed, 28 insertions(+)
> 
> diff --git a/drivers/mfd/syscon.c b/drivers/mfd/syscon.c
> index 52cb433..6437344 100644
> --- a/drivers/mfd/syscon.c
> +++ b/drivers/mfd/syscon.c
> @@ -41,6 +41,26 @@ void __iomem *syscon_base_lookup_by_pdevname(const char *s)
>  	return ERR_PTR(-ENODEV);
>  }
>  
> +void __iomem *syscon_base_lookup_by_phandle(struct device_node *np,
> +					    const char *property)
> +{
> +	struct device_node *node;
> +	struct syscon *syscon;
> +	struct device_d *dev;
> +
> +	node = of_parse_phandle(np, property, 0);
> +	if (!node)
> +		return ERR_PTR(-ENODEV);
> +
> +	dev = of_find_device_by_node(node);
> +	if (!dev)
> +		return ERR_PTR(-ENODEV);
> +
> +	syscon = dev->priv;
> +
> +	return syscon->base;
> +}
> +
>  static int syscon_probe(struct device_d *dev)
>  {
>  	struct syscon *syscon;
> diff --git a/include/mfd/syscon.h b/include/mfd/syscon.h
> index 68432b7..0eccd5c 100644
> --- a/include/mfd/syscon.h
> +++ b/include/mfd/syscon.h
> @@ -16,11 +16,19 @@
>  
>  #ifdef CONFIG_MFD_SYSCON
>  void __iomem *syscon_base_lookup_by_pdevname(const char *);
> +void __iomem *syscon_base_lookup_by_phandle
> +	(struct device_node *np, const char *property);
>  #else
>  static inline void __iomem *syscon_base_lookup_by_pdevname(const char *)
>  {
>  	return NULL;
>  }
> +
> +static inline void __iomem *syscon_base_lookup_by_phandle
> +	(struct device_node *np, const char *property)
> +{
> +	return NULL;
> +}
>  #endif
>  
>  #endif
> -- 
> 1.8.3.2
> 
> 
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> 

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