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 930fe43d5dafa86a2d59dba7284bbcceff9ce304..92cec9722ee49e5b5f7beeb3cb8f5f3aeb24c506 100644 (file)
--- 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;