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(h-178-174-189-39.A498.priv.bahnhof.se. [178.174.189.39]) by smtp.gmail.com with ESMTPSA id 2adb3069b0e04-551fc0d473bsm1950609e87.244.2025.05.23.06.40.48 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 23 May 2025 06:40:49 -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 Subject: [PATCH v2 07/21] cpuidle: psci: Opt-out from genpd's common ->sync_state() support Date: Fri, 23 May 2025 15:40:04 +0200 Message-ID: <20250523134025.75130-8-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-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" The cpuidle-psci-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. Signed-off-by: Ulf Hansson --- drivers/cpuidle/cpuidle-psci-domain.c | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-) diff --git a/drivers/cpuidle/cpuidle-psci-domain.c b/drivers/cpuidle/cpuidl= e-psci-domain.c index 2041f59116ce..b880ce2df8b5 100644 --- a/drivers/cpuidle/cpuidle-psci-domain.c +++ b/drivers/cpuidle/cpuidle-psci-domain.c @@ -63,7 +63,8 @@ static int psci_pd_init(struct device_node *np, bool use_= osi) if (!pd_provider) goto free_pd; =20 - pd->flags |=3D GENPD_FLAG_IRQ_SAFE | GENPD_FLAG_CPU_DOMAIN; + pd->flags |=3D GENPD_FLAG_IRQ_SAFE | GENPD_FLAG_CPU_DOMAIN | + GENPD_FLAG_NO_SYNC_STATE; =20 /* * Allow power off when OSI has been successfully enabled. @@ -128,11 +129,16 @@ static void psci_pd_remove(void) =20 static void psci_cpuidle_domain_sync_state(struct device *dev) { + struct psci_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. */ psci_pd_allow_domain_state =3D true; + + list_for_each_entry(pd_provider, &psci_pd_providers, link) + of_genpd_sync_state(pd_provider->node); } =20 static const struct of_device_id psci_of_match[] =3D { --=20 2.43.0