Re: [PATCH 2/2] of/platform: Mark all device tree resources as SHARED

From: Rob Herring
Date: Fri Jun 05 2015 - 12:45:49 EST


On Fri, Jun 5, 2015 at 5:51 AM, Ricardo Ribalda Delgado
<ricardo.ribalda@xxxxxxxxx> wrote:
> Some device tree platform do not define their resources properly. i.e.
> overlapping or repeated resources.
>
> This patch mark all device tree resources as shareable.
>
> In the future this should only be set for the platforms that have
> problems.

I don't think we want to do this globally. This should be very rare
and we want to discourage any new cases.

Rob

>
> Signed-off-by: Ricardo Ribalda Delgado <ricardo.ribalda@xxxxxxxxx>
> ---
> drivers/of/platform.c | 2 ++
> 1 file changed, 2 insertions(+)
>
> diff --git a/drivers/of/platform.c b/drivers/of/platform.c
> index ddf8e42c9367..89cb502f8812 100644
> --- a/drivers/of/platform.c
> +++ b/drivers/of/platform.c
> @@ -136,6 +136,8 @@ struct platform_device *of_device_alloc(struct device_node *np,
> if (of_irq_to_resource_table(np, res, num_irq) != num_irq)
> pr_debug("not all legacy IRQ resources mapped for %s\n",
> np->name);
> + for (i = 0; i < num_reg + num_irq; i++, res++)
> + dev->resource[i].flags |= IORESOURCE_SHARED;
> }
>
> dev->dev.of_node = of_node_get(np);
> --
> 2.1.4
>
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