Re: [PATCH] of: reserved_mem: Add missing IORESOURCE_MEM flag on resources

[Saravana Kannan]

On Wed, Aug 20, 2025 at 12:29 PM Rob Herring (Arm) <robh@xxxxxxxxxx> wrote:
>
> Commit f4fcfdda2fd8 ('of: reserved_mem: Add functions to parse
> "memory-region"') failed to set IORESOURCE_MEM flag on the resources.
> The result is functions such as devm_ioremap_resource_wc() will fail.
> Add the missing flag.
>
> Fixes: f4fcfdda2fd8 ('of: reserved_mem: Add functions to parse "memory-region"')
> Reported-by: Iuliana Prodan <iuliana.prodan@xxxxxxx>
> Reported-by: Daniel Baluta <daniel.baluta@xxxxxxxxx>
> Signed-off-by: Rob Herring (Arm) <robh@xxxxxxxxxx>

Reviewed-by: Saravana Kannan <saravanak@xxxxxxxxxx>

-Saravana

> ---
>  drivers/of/of_reserved_mem.c | 1 +
>  1 file changed, 1 insertion(+)
>
> diff --git a/drivers/of/of_reserved_mem.c b/drivers/of/of_reserved_mem.c
> index 77016c0cc296..d3b7c4ae429c 100644
> --- a/drivers/of/of_reserved_mem.c
> +++ b/drivers/of/of_reserved_mem.c
> @@ -771,6 +771,7 @@ int of_reserved_mem_region_to_resource(const struct device_node *np,
>                 return -EINVAL;
>
>         resource_set_range(res, rmem->base, rmem->size);
> +       res->flags = IORESOURCE_MEM;
>         res->name = rmem->name;
>         return 0;
>  }
> --
> 2.50.1
>