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Message-Id: <20220514152044.758802-1-ulf.hansson@linaro.org>
Date: Sat, 14 May 2022 17:20:44 +0200
From: Ulf Hansson <ulf.hansson@...aro.org>
To: "Rafael J . Wysocki" <rjw@...ysocki.net>,
Anup Patel <anup@...infault.org>, linux-pm@...r.kernel.org
Cc: Sudeep Holla <sudeep.holla@....com>,
Lorenzo Pieralisi <Lorenzo.Pieralisi@....com>,
Maulik Shah <quic_mkshah@...cinc.com>,
Daniel Lezcano <daniel.lezcano@...aro.org>,
Paul Walmsley <paul.walmsley@...ive.com>,
Palmer Dabbelt <palmer@...belt.com>,
Albert Ou <aou@...s.berkeley.edu>,
Atish Patra <atishp@...osinc.com>,
Ulf Hansson <ulf.hansson@...aro.org>,
linux-arm-kernel@...ts.infradead.org,
linux-riscv@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: [PATCH 2/2] cpuidle: riscv-sbi: Fix code to allow a genpd governor to be used
The intent is to use a genpd governor when there are some states that needs
to be managed. Although, the current code ends up to never assign a
governor, let's fix this.
Fixes: 6abf32f1d9c50 ("cpuidle: Add RISC-V SBI CPU idle driver")
Signed-off-by: Ulf Hansson <ulf.hansson@...aro.org>
---
drivers/cpuidle/cpuidle-riscv-sbi.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/cpuidle/cpuidle-riscv-sbi.c b/drivers/cpuidle/cpuidle-riscv-sbi.c
index b459eda2cd37..478970fa3b0c 100644
--- a/drivers/cpuidle/cpuidle-riscv-sbi.c
+++ b/drivers/cpuidle/cpuidle-riscv-sbi.c
@@ -413,7 +413,7 @@ static int sbi_pd_init(struct device_node *np)
struct generic_pm_domain *pd;
struct sbi_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, sbi_dt_parse_state_node);
if (!pd)
@@ -432,7 +432,7 @@ static int sbi_pd_init(struct device_node *np)
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
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