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(h-94-254-63-18.NA.cust.bahnhof.se. [94.254.63.18]) by smtp.gmail.com with ESMTPSA id m29-20020a056512015d00b004fe10276bbfsm1823583lfo.296.2023.09.25.06.17.55 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 25 Sep 2023 06:17:56 -0700 (PDT) From: Ulf Hansson To: Sudeep Holla , Cristian Marussi , Viresh Kumar , "Rafael J . Wysocki" Cc: Nishanth Menon , Stephen Boyd , Nikunj Kela , Prasad Sodagudi , Alexandre Torgue , Ulf Hansson , linux-pm@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org Subject: [PATCH 2/9] PM: domains: Implement the ->set_performance_state() callback for genpd Date: Mon, 25 Sep 2023 15:17:08 +0200 Message-Id: <20230925131715.138411-3-ulf.hansson@linaro.org> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20230925131715.138411-1-ulf.hansson@linaro.org> References: <20230925131715.138411-1-ulf.hansson@linaro.org> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Type: text/plain; charset="utf-8" To enable generic support for performance scaling for PM domains, let's implement the ->set_performance_state() callback for genpd. Beyond this change, users of the corresponding genpd specific API, dev_pm_genpd_set_performance_state() are encouraged to switch to the common dev_pm_domain_set_performance_state() API. Signed-off-by: Ulf Hansson --- drivers/base/power/domain.c | 33 +++++++++++++++++++++------------ 1 file changed, 21 insertions(+), 12 deletions(-) diff --git a/drivers/base/power/domain.c b/drivers/base/power/domain.c index c74edf80417f..da1777e39eaa 100644 --- a/drivers/base/power/domain.c +++ b/drivers/base/power/domain.c @@ -420,6 +420,25 @@ static void genpd_restore_performance_state(struct dev= ice *dev, genpd_set_performance_state(dev, state); } =20 +static int genpd_dev_pm_set_performance_state(struct device *dev, + unsigned int state) +{ + struct generic_pm_domain *genpd =3D dev_to_genpd(dev); + int ret =3D 0; + + genpd_lock(genpd); + if (pm_runtime_suspended(dev)) { + dev_gpd_data(dev)->rpm_pstate =3D state; + } else { + ret =3D genpd_set_performance_state(dev, state); + if (!ret) + dev_gpd_data(dev)->rpm_pstate =3D 0; + } + genpd_unlock(genpd); + + return ret; +} + /** * dev_pm_genpd_set_performance_state- Set performance state of device's p= ower * domain. @@ -438,7 +457,6 @@ static void genpd_restore_performance_state(struct devi= ce *dev, int dev_pm_genpd_set_performance_state(struct device *dev, unsigned int st= ate) { struct generic_pm_domain *genpd; - int ret =3D 0; =20 genpd =3D dev_to_genpd_safe(dev); if (!genpd) @@ -448,17 +466,7 @@ int dev_pm_genpd_set_performance_state(struct device *= dev, unsigned int state) !dev->power.subsys_data->domain_data)) return -EINVAL; =20 - genpd_lock(genpd); - if (pm_runtime_suspended(dev)) { - dev_gpd_data(dev)->rpm_pstate =3D state; - } else { - ret =3D genpd_set_performance_state(dev, state); - if (!ret) - dev_gpd_data(dev)->rpm_pstate =3D 0; - } - genpd_unlock(genpd); - - return ret; + return genpd_dev_pm_set_performance_state(dev, state); } EXPORT_SYMBOL_GPL(dev_pm_genpd_set_performance_state); =20 @@ -2080,6 +2088,7 @@ int pm_genpd_init(struct generic_pm_domain *genpd, genpd->domain.ops.restore_noirq =3D genpd_restore_noirq; genpd->domain.ops.complete =3D genpd_complete; genpd->domain.start =3D genpd_dev_pm_start; + genpd->domain.set_performance_state =3D genpd_dev_pm_set_performance_stat= e; =20 if (genpd->flags & GENPD_FLAG_PM_CLK) { genpd->dev_ops.stop =3D pm_clk_suspend; --=20 2.34.1