Re: [PATCH] cpuidle: Use of_property_present() for testing DT property presence
From: Anup Patel <anup@brainfault.org>
Date: 2023-03-17 04:16:15
Also in:
linux-devicetree, linux-pm, linux-riscv, lkml
On Fri, Mar 10, 2023 at 8:17 PM Rob Herring [off-list ref] wrote:
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>
For cpuidle-riscv-sbi: Acked-by: Anup Patel <anup@brainfault.org> Thanks, Anup
quoted hunk ↗ jump to hunk
--- 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
_______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel