linux-kernel - [PATCH net-next] mdio: mdio-mux-mmioreg: Use of_property_read

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Message-Id: <20230609182615.1760266-1-robh@kernel.org>
Date:   Fri,  9 Jun 2023 12:26:16 -0600
From:   Rob Herring <robh@...nel.org>
To:     Andrew Lunn <andrew@...n.ch>,
        Heiner Kallweit <hkallweit1@...il.com>,
        Russell King <linux@...linux.org.uk>,
        "David S. Miller" <davem@...emloft.net>,
        Eric Dumazet <edumazet@...gle.com>,
        Jakub Kicinski <kuba@...nel.org>,
        Paolo Abeni <pabeni@...hat.com>
Cc:     netdev@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH net-next] mdio: mdio-mux-mmioreg: Use of_property_read_reg() to parse "reg"

Use the recently added of_property_read_reg() helper to get the
untranslated "reg" address value.

Signed-off-by: Rob Herring <robh@...nel.org>
---
 drivers/net/mdio/mdio-mux-mmioreg.c | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/drivers/net/mdio/mdio-mux-mmioreg.c b/drivers/net/mdio/mdio-mux-mmioreg.c
index c02c9c660016..09af150ed774 100644
--- a/drivers/net/mdio/mdio-mux-mmioreg.c
+++ b/drivers/net/mdio/mdio-mux-mmioreg.c
@@ -140,14 +140,15 @@ static int mdio_mux_mmioreg_probe(struct platform_device *pdev)
 	 * set any bits outside of the 'mask'.
 	 */
 	for_each_available_child_of_node(np, np2) {
-		iprop = of_get_property(np2, "reg", &len);
-		if (!iprop || len != sizeof(uint32_t)) {
+		u64 reg;
+
+		if (of_property_read_reg(np2, 0, &reg, NULL)) {
 			dev_err(&pdev->dev, "mdio-mux child node %pOF is "
 				"missing a 'reg' property\n", np2);
 			of_node_put(np2);
 			return -ENODEV;
 		}
-		if (be32_to_cpup(iprop) & ~s->mask) {
+		if ((u32)reg & ~s->mask) {
 			dev_err(&pdev->dev, "mdio-mux child node %pOF has "
 				"a 'reg' value with unmasked bits\n",
 				np2);
-- 
2.39.2