linux-kernel - [PATCH v2 10/11] cpufreq: s5pv210: Simplify with scoped for each OF child loop

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Message-Id: <20260106-of-for-each-compatible-scoped-v2-10-05eb948d91f2@oss.qualcomm.com>
Date: Tue, 06 Jan 2026 10:15:20 +0100
From: Krzysztof Kozlowski <krzysztof.kozlowski@....qualcomm.com>
To: Miguel Ojeda <ojeda@...nel.org>, Rob Herring <robh@...nel.org>,
        Saravana Kannan <saravanak@...gle.com>,
        Nathan Chancellor <nathan@...nel.org>,
        Nick Desaulniers <nick.desaulniers+lkml@...il.com>,
        Bill Wendling <morbo@...gle.com>,
        Justin Stitt <justinstitt@...gle.com>,
        Russell King <linux@...linux.org.uk>,
        Nicolas Ferre <nicolas.ferre@...rochip.com>,
        Alexandre Belloni <alexandre.belloni@...tlin.com>,
        Claudiu Beznea <claudiu.beznea@...on.dev>,
        Krzysztof Kozlowski <krzk@...nel.org>,
        Alim Akhtar <alim.akhtar@...sung.com>,
        Madhavan Srinivasan <maddy@...ux.ibm.com>,
        Michael Ellerman <mpe@...erman.id.au>,
        Nicholas Piggin <npiggin@...il.com>,
        "Christophe Leroy (CS GROUP)" <chleroy@...nel.org>,
        Nipun Gupta <nipun.gupta@....com>,
        Nikhil Agarwal <nikhil.agarwal@....com>,
        Abel Vesa <abelvesa@...nel.org>, Peng Fan <peng.fan@....com>,
        Michael Turquette <mturquette@...libre.com>,
        Stephen Boyd <sboyd@...nel.org>, Shawn Guo <shawnguo@...nel.org>,
        Sascha Hauer <s.hauer@...gutronix.de>,
        Pengutronix Kernel Team <kernel@...gutronix.de>,
        Fabio Estevam <festevam@...il.com>, Vinod Koul <vkoul@...nel.org>,
        Sylwester Nawrocki <s.nawrocki@...sung.com>,
        Mauro Carvalho Chehab <mchehab@...nel.org>,
        "Rafael J. Wysocki" <rafael@...nel.org>,
        Viresh Kumar <viresh.kumar@...aro.org>
Cc: linux-kernel@...r.kernel.org, devicetree@...r.kernel.org,
        llvm@...ts.linux.dev, linux-arm-kernel@...ts.infradead.org,
        linux-samsung-soc@...r.kernel.org, linuxppc-dev@...ts.ozlabs.org,
        linux-clk@...r.kernel.org, imx@...ts.linux.dev,
        dmaengine@...r.kernel.org, linux-media@...r.kernel.org,
        linux-pm@...r.kernel.org,
        Krzysztof Kozlowski <krzysztof.kozlowski@....qualcomm.com>
Subject: [PATCH v2 10/11] cpufreq: s5pv210: Simplify with scoped for each
 OF child loop

Use scoped for-each loop when iterating over device nodes to make code a
bit simpler.  Note that there is another part of code using "np"
variable, so scoped loop should not shadow it.

Acked-by: Viresh Kumar <viresh.kumar@...aro.org>
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@....qualcomm.com>
---

Depends on the first patch.
---
 drivers/cpufreq/s5pv210-cpufreq.c | 10 ++++------
 1 file changed, 4 insertions(+), 6 deletions(-)

diff --git a/drivers/cpufreq/s5pv210-cpufreq.c b/drivers/cpufreq/s5pv210-cpufreq.c
index ba8a1c96427a..e64e84e1ee79 100644
--- a/drivers/cpufreq/s5pv210-cpufreq.c
+++ b/drivers/cpufreq/s5pv210-cpufreq.c
@@ -629,19 +629,17 @@ static int s5pv210_cpufreq_probe(struct platform_device *pdev)
 		goto err_clock;
 	}
 
-	for_each_compatible_node(np, NULL, "samsung,s5pv210-dmc") {
-		id = of_alias_get_id(np, "dmc");
+	for_each_compatible_node_scoped(dmc, NULL, "samsung,s5pv210-dmc") {
+		id = of_alias_get_id(dmc, "dmc");
 		if (id < 0 || id >= ARRAY_SIZE(dmc_base)) {
-			dev_err(dev, "failed to get alias of dmc node '%pOFn'\n", np);
-			of_node_put(np);
+			dev_err(dev, "failed to get alias of dmc node '%pOFn'\n", dmc);
 			result = id;
 			goto err_clk_base;
 		}
 
-		dmc_base[id] = of_iomap(np, 0);
+		dmc_base[id] = of_iomap(dmc, 0);
 		if (!dmc_base[id]) {
 			dev_err(dev, "failed to map dmc%d registers\n", id);
-			of_node_put(np);
 			result = -EFAULT;
 			goto err_dmc;
 		}

-- 
2.51.0