[PATCH 1/2] cpuidle: psci: Fix regression leading to no genpd governor

From: Ulf Hansson <ulf.hansson@linaro.org>
To: "Rafael J . Wysocki" <rjw@rjwysocki.net>,
	Anup Patel <anup@brainfault.org>,
	linux-pm@vger.kernel.org
Cc: Sudeep Holla <sudeep.holla@arm.com>,
	Lorenzo Pieralisi <Lorenzo.Pieralisi@arm.com>,
	Maulik Shah <quic_mkshah@quicinc.com>,
	Daniel Lezcano <daniel.lezcano@linaro.org>,
	Paul Walmsley <paul.walmsley@sifive.com>,
	Palmer Dabbelt <palmer@dabbelt.com>,
	Albert Ou <aou@eecs.berkeley.edu>,
	Atish Patra <atishp@rivosinc.com>,
	Ulf Hansson <ulf.hansson@linaro.org>,
	linux-arm-kernel@lists.infradead.org,
	linux-riscv@lists.infradead.org, linux-kernel@vger.kernel.org
Subject: [PATCH 1/2] cpuidle: psci: Fix regression leading to no genpd governor
Date: Sat, 14 May 2022 17:20:32 +0200	[thread overview]
Message-ID: <20220514152032.758738-1-ulf.hansson@linaro.org> (raw)

While factoring out the PM domain related code from PSCI domain driver into
a set of library functions, a regression when initializing the genpds got
introduced. More precisely, we fail to assign a genpd governor, so let's
fix this.

Fixes: 9d976d6721df ("cpuidle: Factor-out power domain related code from PSCI domain driver")
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
---
 drivers/cpuidle/cpuidle-psci-domain.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/cpuidle/cpuidle-psci-domain.c b/drivers/cpuidle/cpuidle-psci-domain.c
index 755bbdfc5b82..3db4fca1172b 100644
--- a/drivers/cpuidle/cpuidle-psci-domain.c
+++ b/drivers/cpuidle/cpuidle-psci-domain.c
@@ -52,7 +52,7 @@ static int psci_pd_init(struct device_node *np, bool use_osi)
 	struct generic_pm_domain *pd;
 	struct psci_pd_provider *pd_provider;
 	struct dev_power_governor *pd_gov;
-	int ret = -ENOMEM, state_count = 0;
+	int ret = -ENOMEM;
 
 	pd = dt_idle_pd_alloc(np, psci_dt_parse_state_node);
 	if (!pd)
@@ -71,7 +71,7 @@ static int psci_pd_init(struct device_node *np, bool use_osi)
 		pd->flags |= GENPD_FLAG_ALWAYS_ON;
 
 	/* Use governor for CPU PM domains if it has some states to manage. */
-	pd_gov = state_count > 0 ? &pm_domain_cpu_gov : NULL;
+	pd_gov = pd->states ? &pm_domain_cpu_gov : NULL;
 
 	ret = pm_genpd_init(pd, pd_gov, false);
 	if (ret)
-- 
2.25.1

