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hwtracing: coresight: Use of_reserved_mem_region_to_resource() for "memory-region"

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Use the newly added of_reserved_mem_region_to_resource() function to
handle "memory-region" properties.

Signed-off-by: Rob Herring (Arm) <robh@kernel.org>
Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Link: https://lore.kernel.org/r/20250703183534.2075569-1-robh@kernel.org
This commit is contained in:
Rob Herring (Arm) 2025-07-03 13:35:33 -05:00 committed by Suzuki K Poulose
parent 12d9a9dd9d
commit 9ba5502136
1 changed files with 6 additions and 16 deletions
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22
drivers/hwtracing/coresight/coresight-tmc-core.c
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@ -24,6 +24,7 @@
#include <linux/pm_runtime.h>
#include <linux/of.h>
#include <linux/of_address.h>
#include <linux/of_reserved_mem.h>
#include <linux/coresight.h>
#include <linux/amba/bus.h>
#include <linux/platform_device.h>
@ -634,25 +635,14 @@ static int of_tmc_get_reserved_resource_by_name(struct device *dev,
const char *name,
struct resource *res)
{
int index, rc = -ENODEV;
struct device_node *node;
int rc = -ENODEV;
if (!is_of_node(dev->fwnode))
return -ENODEV;
index = of_property_match_string(dev->of_node, "memory-region-names",
name);
if (index < 0)
rc = of_reserved_mem_region_to_resource_byname(dev->of_node, name, res);
if (rc < 0)
return rc;
node = of_parse_phandle(dev->of_node, "memory-region", index);
if (!node)
return rc;
if (!of_address_to_resource(node, 0, res) &&
res->start != 0 && resource_size(res) != 0)
rc = 0;
of_node_put(node);
if (res->start == 0 || resource_size(res) == 0)
rc = -ENODEV;
return rc;
}