Re: [PATCH] omap: Use ioremap for omap_hwmod instead of OMAP2_IO_ADDRESS

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On Wed, 7 Oct 2009, Tony Lindgren wrote:

> >From f05ba4e3427bc0dc216f2fca32a9b1e8f0e38695 Mon Sep 17 00:00:00 2001
> From: Tony Lindgren <tony@xxxxxxxxxxx>
> Date: Wed, 7 Oct 2009 17:10:18 -0700
> Subject: [PATCH] omap: Use ioremap for omap_hwmod instead of OMAP2_IO_ADDRESS
> 
> Otherwise we cannot get rid of OMAP2_IO_ADDRESS.

Acked-by: Paul Walmsley <paul@xxxxxxxxx>



> 
> Signed-off-by: Tony Lindgren <tony@xxxxxxxxxxx>
> 
> diff --git a/arch/arm/mach-omap2/omap_hwmod.c b/arch/arm/mach-omap2/omap_hwmod.c
> index d2e0f1c..8ac8798 100644
> --- a/arch/arm/mach-omap2/omap_hwmod.c
> +++ b/arch/arm/mach-omap2/omap_hwmod.c
> @@ -496,6 +496,7 @@ static void __iomem *_find_mpu_rt_base(struct omap_hwmod *oh, u8 index)
>  	struct omap_hwmod_addr_space *mem;
>  	int i;
>  	int found = 0;
> +	void __iomem *va_start;
>  
>  	if (!oh || oh->slaves_cnt == 0)
>  		return NULL;
> @@ -509,16 +510,20 @@ static void __iomem *_find_mpu_rt_base(struct omap_hwmod *oh, u8 index)
>  		}
>  	}
>  
> -	/* XXX use ioremap() instead? */
> -
> -	if (found)
> +	if (found) {
> +		va_start = ioremap(mem->pa_start, mem->pa_end - mem->pa_start);
> +		if (!va_start) {
> +			pr_err("omap_hwmod: %s: Could not ioremap\n", oh->name);
> +			return NULL;
> +		}
>  		pr_debug("omap_hwmod: %s: MPU register target at va %p\n",
> -			 oh->name, OMAP2_IO_ADDRESS(mem->pa_start));
> -	else
> +			 oh->name, va_start);
> +	} else {
>  		pr_debug("omap_hwmod: %s: no MPU register target found\n",
>  			 oh->name);
> +	}
>  
> -	return (found) ? OMAP2_IO_ADDRESS(mem->pa_start) : NULL;
> +	return (found) ? va_start : NULL;
>  }
>  
>  /**
> @@ -1148,6 +1153,7 @@ int omap_hwmod_unregister(struct omap_hwmod *oh)
>  	pr_debug("omap_hwmod: %s: unregistering\n", oh->name);
>  
>  	mutex_lock(&omap_hwmod_mutex);
> +	iounmap(oh->_rt_va);
>  	list_del(&oh->node);
>  	mutex_unlock(&omap_hwmod_mutex);
>  
> --
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> 


- Paul
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