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Message-Id: <20230310144703.1541888-1-robh@kernel.org>
Date: Fri, 10 Mar 2023 08:47:03 -0600
From: Rob Herring <robh@...nel.org>
To: Ulf Hansson <ulf.hansson@...aro.org>,
"Rafael J. Wysocki" <rafael@...nel.org>,
Daniel Lezcano <daniel.lezcano@...aro.org>,
Anup Patel <anup@...infault.org>,
Paul Walmsley <paul.walmsley@...ive.com>,
Palmer Dabbelt <palmer@...belt.com>,
Albert Ou <aou@...s.berkeley.edu>
Cc: devicetree@...r.kernel.org, linux-pm@...r.kernel.org,
linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
linux-riscv@...ts.infradead.org
Subject: [PATCH] cpuidle: Use of_property_present() for testing DT property presence
It is preferred to use typed property access functions (i.e.
of_property_read_<type> functions) rather than low-level
of_get_property/of_find_property functions for reading properties. As
part of this, convert of_get_property/of_find_property calls to the
recently added of_property_present() helper when we just want to test
for presence of a property and nothing more.
Signed-off-by: Rob Herring <robh@...nel.org>
---
drivers/cpuidle/cpuidle-psci-domain.c | 2 +-
drivers/cpuidle/cpuidle-riscv-sbi.c | 6 +++---
2 files changed, 4 insertions(+), 4 deletions(-)
diff --git a/drivers/cpuidle/cpuidle-psci-domain.c b/drivers/cpuidle/cpuidle-psci-domain.c
index 6ad2954948a5..e875ddadc51b 100644
--- a/drivers/cpuidle/cpuidle-psci-domain.c
+++ b/drivers/cpuidle/cpuidle-psci-domain.c
@@ -165,7 +165,7 @@ static int psci_cpuidle_domain_probe(struct platform_device *pdev)
* initialize a genpd/genpd-of-provider pair when it's found.
*/
for_each_child_of_node(np, node) {
- if (!of_find_property(node, "#power-domain-cells", NULL))
+ if (!of_property_present(node, "#power-domain-cells"))
continue;
ret = psci_pd_init(node, use_osi);
diff --git a/drivers/cpuidle/cpuidle-riscv-sbi.c b/drivers/cpuidle/cpuidle-riscv-sbi.c
index be383f4b6855..1fab1abc6eb6 100644
--- a/drivers/cpuidle/cpuidle-riscv-sbi.c
+++ b/drivers/cpuidle/cpuidle-riscv-sbi.c
@@ -497,7 +497,7 @@ static int sbi_genpd_probe(struct device_node *np)
* initialize a genpd/genpd-of-provider pair when it's found.
*/
for_each_child_of_node(np, node) {
- if (!of_find_property(node, "#power-domain-cells", NULL))
+ if (!of_property_present(node, "#power-domain-cells"))
continue;
ret = sbi_pd_init(node);
@@ -548,8 +548,8 @@ static int sbi_cpuidle_probe(struct platform_device *pdev)
for_each_possible_cpu(cpu) {
np = of_cpu_device_node_get(cpu);
if (np &&
- of_find_property(np, "power-domains", NULL) &&
- of_find_property(np, "power-domain-names", NULL)) {
+ of_property_present(np, "power-domains") &&
+ of_property_present(np, "power-domain-names")) {
continue;
} else {
sbi_cpuidle_use_osi = false;
--
2.39.2
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