linux-kernel - [PATCH] ARM: omap: Use of_address_to

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Date:   Sun, 19 Mar 2023 11:31:35 -0500
From:   Rob Herring <robh@...nel.org>
To:     Benoît Cousson <bcousson@...libre.com>,
        Paul Walmsley <paul@...an.com>,
        Tony Lindgren <tony@...mide.com>,
        Russell King <linux@...linux.org.uk>
Cc:     linux-omap@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-kernel@...r.kernel.org
Subject: [PATCH] ARM: omap: Use of_address_to_resource()

Replace open coded parsing of "reg" with of_address_to_resource().

Signed-off-by: Rob Herring <robh@...nel.org>
---
 arch/arm/mach-omap2/omap_hwmod.c | 15 ++++++---------
 1 file changed, 6 insertions(+), 9 deletions(-)

diff --git a/arch/arm/mach-omap2/omap_hwmod.c b/arch/arm/mach-omap2/omap_hwmod.c
index 5a2a9b8e61ed..37ae8ba41ddd 100644
--- a/arch/arm/mach-omap2/omap_hwmod.c
+++ b/arch/arm/mach-omap2/omap_hwmod.c
@@ -706,9 +706,7 @@ static const struct of_device_id ti_clkctrl_match_table[] __initconst = {
 
 static int __init _setup_clkctrl_provider(struct device_node *np)
 {
-	const __be32 *addrp;
 	struct clkctrl_provider *provider;
-	u64 size;
 	int i;
 
 	provider = memblock_alloc(sizeof(*provider), SMP_CACHE_BYTES);
@@ -717,8 +715,7 @@ static int __init _setup_clkctrl_provider(struct device_node *np)
 
 	provider->node = np;
 
-	provider->num_addrs =
-		of_property_count_elems_of_size(np, "reg", sizeof(u32)) / 2;
+	provider->num_addrs = of_address_count(np);
 
 	provider->addr =
 		memblock_alloc(sizeof(void *) * provider->num_addrs,
@@ -733,11 +730,11 @@ static int __init _setup_clkctrl_provider(struct device_node *np)
 		return -ENOMEM;
 
 	for (i = 0; i < provider->num_addrs; i++) {
-		addrp = of_get_address(np, i, &size, NULL);
-		provider->addr[i] = (u32)of_translate_address(np, addrp);
-		provider->size[i] = size;
-		pr_debug("%s: %pOF: %x...%x\n", __func__, np, provider->addr[i],
-			 provider->addr[i] + provider->size[i]);
+		struct resource res;
+		of_address_to_resource(np, i, &res);
+		provider->addr[i] = res.start;
+		provider->size[i] = resource_size(&res);
+		pr_debug("%s: %pOF: %pR\n", __func__, np, &res);
 	}
 
 	list_add(&provider->link, &clkctrl_providers);
-- 
2.39.2