On 18/06/15 16:05, Brian Norris wrote:
> This way, the IO resources will show up in /proc/iomem, and we can make
> sure no other drivers are trying to claim these register regions.
> 
> Signed-off-by: Brian Norris <[email protected]>

Reviewed-by: Florian Fainelli <[email protected]>

> ---
>  drivers/irqchip/irq-bcm7120-l2.c | 19 ++++++++++---------
>  1 file changed, 10 insertions(+), 9 deletions(-)
> 
> diff --git a/drivers/irqchip/irq-bcm7120-l2.c 
> b/drivers/irqchip/irq-bcm7120-l2.c
> index 3ba5cc780fcb..299d4de2deb5 100644
> --- a/drivers/irqchip/irq-bcm7120-l2.c
> +++ b/drivers/irqchip/irq-bcm7120-l2.c
> @@ -142,10 +142,10 @@ static int __init bcm7120_l2_intc_iomap_7120(struct 
> device_node *dn,
>  {
>       int ret;
>  
> -     data->map_base[0] = of_iomap(dn, 0);
> -     if (!data->map_base[0]) {
> +     data->map_base[0] = of_io_request_and_map(dn, 0, dn->full_name);
> +     if (IS_ERR(data->map_base[0])) {
>               pr_err("unable to map registers\n");
> -             return -ENOMEM;
> +             return PTR_ERR(data->map_base[0]);
>       }
>  
>       data->pair_base[0] = data->map_base[0];
> @@ -178,16 +178,17 @@ static int __init bcm7120_l2_intc_iomap_3380(struct 
> device_node *dn,
>  
>       for (gc_idx = 0; gc_idx < MAX_WORDS; gc_idx++) {
>               unsigned int map_idx = gc_idx * 2;
> -             void __iomem *en = of_iomap(dn, map_idx + 0);
> -             void __iomem *stat = of_iomap(dn, map_idx + 1);
> -             void __iomem *base = min(en, stat);
> +             void __iomem *en, *stat, *base;
> +
> +             en = of_io_request_and_map(dn, map_idx + 0, "irq-en");
> +             stat = of_io_request_and_map(dn, map_idx + 1, "irq-stat");
> +             if (IS_ERR(en) || IS_ERR(stat))
> +                     break;
>  
> +             base = min(en, stat);
>               data->map_base[map_idx + 0] = en;
>               data->map_base[map_idx + 1] = stat;
>  
> -             if (!base)
> -                     break;
> -
>               data->pair_base[gc_idx] = base;
>               data->en_offset[gc_idx] = en - base;
>               data->stat_offset[gc_idx] = stat - base;
> 


-- 
Florian
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