From: lukasz.luba@arm.com
To: linux-kernel@vger.kernel.org, linux-pm@vger.kernel.org,
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lukasz.luba@arm.com
Subject: [PATCH 4/4] drm/panfrost: Register to the Energy Model with devfreq device
Date: Thu, 16 Jan 2020 15:20:32 +0000
Message-ID: <20200116152032.11301-5-lukasz.luba@arm.com> (raw)
In-Reply-To: <20200116152032.11301-1-lukasz.luba@arm.com>
From: Lukasz Luba <lukasz.luba@arm.com>
Let Panfrost devfreq device use the Energy Model (EM). The EM can be used
in thermal subsystem (devfreq_cooling) for calculating the used power.
Signed-off-by: Lukasz Luba <lukasz.luba@arm.com>
---
drivers/gpu/drm/panfrost/panfrost_devfreq.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/drivers/gpu/drm/panfrost/panfrost_devfreq.c b/drivers/gpu/drm/panfrost/panfrost_devfreq.c
index 413987038fbf..8771782f67c6 100644
--- a/drivers/gpu/drm/panfrost/panfrost_devfreq.c
+++ b/drivers/gpu/drm/panfrost/panfrost_devfreq.c
@@ -105,6 +105,8 @@ int panfrost_devfreq_init(struct panfrost_device *pfdev)
}
pfdev->devfreq.devfreq = devfreq;
+ dev_pm_opp_of_register_em(dev);
+
cooling = of_devfreq_cooling_register(dev->of_node, devfreq);
if (IS_ERR(cooling))
DRM_DEV_INFO(dev, "Failed to register cooling device\n");
@@ -118,6 +120,7 @@ void panfrost_devfreq_fini(struct panfrost_device *pfdev)
{
if (pfdev->devfreq.cooling)
devfreq_cooling_unregister(pfdev->devfreq.cooling);
+ dev_pm_opp_of_unregister_em(&pfdev->pdev->dev);
dev_pm_opp_of_remove_table(&pfdev->pdev->dev);
}
--
2.17.1
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Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-01-16 15:20 [PATCH 0/4] Add support for devices in the Energy Model lukasz.luba
2020-01-16 15:20 ` [PATCH 1/4] PM / EM: and devices to " lukasz.luba
2020-01-17 10:54 ` Quentin Perret
2020-01-16 15:20 ` [PATCH 2/4] OPP: change parameter to device pointer in dev_pm_opp_of_register_em() lukasz.luba
2020-01-16 15:20 ` [PATCH 3/4] thermal: devfreq_cooling: Refactor code and switch to use Energy Model lukasz.luba
2020-01-16 15:20 ` lukasz.luba [this message]
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