From: Rob Herring <robh@kernel.org>
Date: Sat, 19 Jul 2025 10:29:11 +0000 (+0300)
Subject: tpm: Use of_reserved_mem_region_to_resource() for "memory-region"
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=63d1dbfef6ac5ae92c672a633e4b38998dfa03b2;p=thirdparty%2Flinux.git

tpm: Use of_reserved_mem_region_to_resource() for "memory-region"

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

Signed-off-by: Rob Herring <robh@kernel.org>
Signed-off-by: Jarkko Sakkinen <jarkko@kernel.org>
---

diff --git a/drivers/char/tpm/eventlog/of.c b/drivers/char/tpm/eventlog/of.c
index 930fe43d5dafa..92cec9722ee49 100644
--- a/drivers/char/tpm/eventlog/of.c
+++ b/drivers/char/tpm/eventlog/of.c
@@ -24,16 +24,10 @@
 
 static int tpm_read_log_memory_region(struct tpm_chip *chip)
 {
-	struct device_node *node;
 	struct resource res;
 	int rc;
 
-	node = of_parse_phandle(chip->dev.parent->of_node, "memory-region", 0);
-	if (!node)
-		return -ENODEV;
-
-	rc = of_address_to_resource(node, 0, &res);
-	of_node_put(node);
+	rc = of_reserved_mem_region_to_resource(chip->dev.parent->of_node, 0, &res);
 	if (rc)
 		return rc;