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

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 <redacted>
Reported-by: Daniel Baluta <redacted>
Signed-off-by: Rob Herring (Arm) <robh@kernel.org>
---
 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

On Wed, Aug 20, 2025 at 12:29 PM Rob Herring (Arm) [off-list ref] 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 <redacted>
Reported-by: Daniel Baluta <redacted>
Signed-off-by: Rob Herring (Arm) <robh@kernel.org>

Reviewed-by: Saravana Kannan <redacted>

-Saravana

On 8/20/2025 10:28 PM, Rob Herring (Arm) 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 <redacted>
Reported-by: Daniel Baluta <redacted>
Signed-off-by: Rob Herring (Arm) <robh@kernel.org>

Tested-by: Iuliana Prodan <redacted>
Reviewed-by: Iuliana Prodan <redacted>

Thanks,
Iulia