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From: lukasz.luba@arm.com
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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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