From: Rob Herring <robh@kernel.org>
To: Ulf Hansson <ulf.hansson@linaro.org>,
"Rafael J. Wysocki" <rafael@kernel.org>,
Daniel Lezcano <daniel.lezcano@linaro.org>,
Anup Patel <anup@brainfault.org>,
Paul Walmsley <paul.walmsley@sifive.com>,
Palmer Dabbelt <palmer@dabbelt.com>,
Albert Ou <aou@eecs.berkeley.edu>
Cc: devicetree@vger.kernel.org, linux-pm@vger.kernel.org,
linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org, linux-riscv@lists.infradead.org
Subject: [PATCH] cpuidle: Use of_property_present() for testing DT property presence
Date: Fri, 10 Mar 2023 08:47:03 -0600 [thread overview]
Message-ID: <20230310144703.1541888-1-robh@kernel.org> (raw)
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@kernel.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
next reply other threads:[~2023-03-10 14:50 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-03-10 14:47 Rob Herring [this message]
2023-03-10 17:46 ` [PATCH] cpuidle: Use of_property_present() for testing DT property presence Ulf Hansson
2023-03-27 17:09 ` Rafael J. Wysocki
2023-03-17 4:15 ` Anup Patel
2023-05-08 14:41 ` patchwork-bot+linux-riscv
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20230310144703.1541888-1-robh@kernel.org \
--to=robh@kernel.org \
--cc=anup@brainfault.org \
--cc=aou@eecs.berkeley.edu \
--cc=daniel.lezcano@linaro.org \
--cc=devicetree@vger.kernel.org \
--cc=linux-arm-kernel@lists.infradead.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-pm@vger.kernel.org \
--cc=linux-riscv@lists.infradead.org \
--cc=palmer@dabbelt.com \
--cc=paul.walmsley@sifive.com \
--cc=rafael@kernel.org \
--cc=ulf.hansson@linaro.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).