linux-kernel - [PATCH net-next 2/5] net: ti: icssg-prueth: Use syscon_regmap_lookup_by_phandle

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Message-Id: <20250112-syscon-phandle-args-net-v1-2-3423889935f7@linaro.org>
Date: Sun, 12 Jan 2025 14:32:44 +0100
From: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
To: MD Danish Anwar <danishanwar@...com>, Roger Quadros <rogerq@...nel.org>, 
 Andrew Lunn <andrew+netdev@...n.ch>, 
 "David S. Miller" <davem@...emloft.net>, Eric Dumazet <edumazet@...gle.com>, 
 Jakub Kicinski <kuba@...nel.org>, Paolo Abeni <pabeni@...hat.com>, 
 Alexandre Torgue <alexandre.torgue@...s.st.com>, 
 Jose Abreu <joabreu@...opsys.com>, 
 Maxime Coquelin <mcoquelin.stm32@...il.com>, 
 Shawn Guo <shawnguo@...nel.org>, Sascha Hauer <s.hauer@...gutronix.de>, 
 Pengutronix Kernel Team <kernel@...gutronix.de>, 
 Fabio Estevam <festevam@...il.com>
Cc: linux-arm-kernel@...ts.infradead.org, netdev@...r.kernel.org, 
 linux-kernel@...r.kernel.org, linux-stm32@...md-mailman.stormreply.com, 
 imx@...ts.linux.dev, Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
Subject: [PATCH net-next 2/5] net: ti: icssg-prueth: Use
 syscon_regmap_lookup_by_phandle_args

Use syscon_regmap_lookup_by_phandle_args() which is a wrapper over
syscon_regmap_lookup_by_phandle() combined with getting the syscon
argument.  Except simpler code this annotates within one line that given
phandle has arguments, so grepping for code would be easier.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
---
 drivers/net/ethernet/ti/am65-cpsw-nuss.c | 9 ++-------
 1 file changed, 2 insertions(+), 7 deletions(-)

diff --git a/drivers/net/ethernet/ti/am65-cpsw-nuss.c b/drivers/net/ethernet/ti/am65-cpsw-nuss.c
index 5465bf872734a3fb9e7e481d556eaec3cce30e0e..68f1136e3db725eba239b10f337786ac735030ca 100644
--- a/drivers/net/ethernet/ti/am65-cpsw-nuss.c
+++ b/drivers/net/ethernet/ti/am65-cpsw-nuss.c
@@ -2559,20 +2559,15 @@ static int am65_cpsw_am654_get_efuse_macid(struct device_node *of_node,
 {
 	u32 mac_lo, mac_hi, offset;
 	struct regmap *syscon;
-	int ret;

-	syscon = syscon_regmap_lookup_by_phandle(of_node, "ti,syscon-efuse");
+	syscon = syscon_regmap_lookup_by_phandle_args(of_node, "ti,syscon-efuse",
+						      1, &offset);
 	if (IS_ERR(syscon)) {
 		if (PTR_ERR(syscon) == -ENODEV)
 			return 0;
 		return PTR_ERR(syscon);
 	}

-	ret = of_property_read_u32_index(of_node, "ti,syscon-efuse", 1,
-					 &offset);
-	if (ret)
-		return ret;
-
 	regmap_read(syscon, offset, &mac_lo);
 	regmap_read(syscon, offset + 4, &mac_hi);

-- 
2.43.0