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(h-178-174-189-39.A498.priv.bahnhof.se. [178.174.189.39]) by smtp.gmail.com with ESMTPSA id 2adb3069b0e04-551fc0d473bsm1950609e87.244.2025.05.23.06.40.51 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 23 May 2025 06:40:51 -0700 (PDT) From: Ulf Hansson To: Saravana Kannan , Stephen Boyd , linux-pm@vger.kernel.org Cc: "Rafael J . Wysocki" , Greg Kroah-Hartman , Michael Grzeschik , Bjorn Andersson , Abel Vesa , Peng Fan , Tomi Valkeinen , Johan Hovold , Maulik Shah , Michal Simek , Konrad Dybcio , Thierry Reding , Jonathan Hunter , Ulf Hansson , linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, Anup Patel , linux-riscv@lists.infradead.org Subject: [PATCH v2 08/21] cpuidle: riscv-sbi: Opt-out from genpd's common ->sync_state() support Date: Fri, 23 May 2025 15:40:05 +0200 Message-ID: <20250523134025.75130-9-ulf.hansson@linaro.org> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20250523134025.75130-1-ulf.hansson@linaro.org> References: <20250523134025.75130-1-ulf.hansson@linaro.org> Precedence: bulk X-Mailing-List: linux-pm@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 The riscv-sbi-domain implements its own specific ->sync_state() callback. Let's set the GENPD_FLAG_NO_SYNC_STATE to inform genpd about it. Moreover, let's call of_genpd_sync_state() to make sure genpd tries to power off unused PM domains. Cc: Anup Patel Cc: linux-riscv@lists.infradead.org Signed-off-by: Ulf Hansson --- drivers/cpuidle/cpuidle-riscv-sbi.c | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-) diff --git a/drivers/cpuidle/cpuidle-riscv-sbi.c b/drivers/cpuidle/cpuidle-riscv-sbi.c index 0fe1ece9fbdc..83d58d00872f 100644 --- a/drivers/cpuidle/cpuidle-riscv-sbi.c +++ b/drivers/cpuidle/cpuidle-riscv-sbi.c @@ -347,11 +347,16 @@ static int sbi_cpuidle_init_cpu(struct device *dev, int cpu) static void sbi_cpuidle_domain_sync_state(struct device *dev) { + struct sbi_pd_provider *pd_provider; + /* * All devices have now been attached/probed to the PM domain * topology, hence it's fine to allow domain states to be picked. */ sbi_cpuidle_pd_allow_domain_state = true; + + list_for_each_entry(pd_provider, &sbi_pd_providers, link) + of_genpd_sync_state(pd_provider->node); } #ifdef CONFIG_DT_IDLE_GENPD @@ -396,7 +401,8 @@ static int sbi_pd_init(struct device_node *np) if (!pd_provider) goto free_pd; - pd->flags |= GENPD_FLAG_IRQ_SAFE | GENPD_FLAG_CPU_DOMAIN; + pd->flags |= GENPD_FLAG_IRQ_SAFE | GENPD_FLAG_CPU_DOMAIN | + GENPD_FLAG_NO_SYNC_STATE; /* Allow power off when OSI is available. */ if (sbi_cpuidle_use_osi)