linux-kernel - [PATCH] of: reserved_mem: Add missing IORESOURCE

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Message-ID: <20250820192805.565568-1-robh@kernel.org>
Date: Wed, 20 Aug 2025 14:28:04 -0500
From: "Rob Herring (Arm)" <robh@...nel.org>
To: Patrice CHOTARD <patrice.chotard@...s.st.com>,
	Saravana Kannan <saravanak@...gle.com>,
	Arnaud Pouliquen <arnaud.pouliquen@...s.st.com>,
	Daniel Baluta <daniel.baluta@....com>
Cc: Iuliana Prodan <iuliana.prodan@....com>,
	Daniel Baluta <daniel.baluta@...il.com>,
	devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: [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 <iuliana.prodan@....com>
Reported-by: Daniel Baluta <daniel.baluta@...il.com>
Signed-off-by: Rob Herring (Arm) <robh@...nel.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