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drm/panfrost: Remove opp table when unloading

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The devfreq opp table needs to be removed when unloading the driver to
free the memory associated with it.

Signed-off-by: Steven Price <steven.price@arm.com>
Signed-off-by: Rob Herring <robh@kernel.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20190816093107.30518-3-steven.price@arm.com
This commit is contained in:
Steven Price 2019-08-16 10:31:07 +01:00 committed by Rob Herring
parent e21dd29088
commit aa4fffec31
3 changed files with 11 additions and 1 deletions
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6
drivers/gpu/drm/panfrost/panfrost_devfreq.c
View file

@ -160,12 +160,18 @@ int panfrost_devfreq_init(struct panfrost_device *pfdev)
DRM_DEV_ERROR(&pfdev->pdev->dev, "Couldn't initialize GPU devfreq\n");
ret = PTR_ERR(pfdev->devfreq.devfreq);
pfdev->devfreq.devfreq = NULL;
dev_pm_opp_of_remove_table(&pfdev->pdev->dev);
return ret;
}
return 0;
}
void panfrost_devfreq_fini(struct panfrost_device *pfdev)
{
dev_pm_opp_of_remove_table(&pfdev->pdev->dev);
}
void panfrost_devfreq_resume(struct panfrost_device *pfdev)
{
int i;

1
drivers/gpu/drm/panfrost/panfrost_devfreq.h
View file

@ -5,6 +5,7 @@
#define __PANFROST_DEVFREQ_H__
int panfrost_devfreq_init(struct panfrost_device *pfdev);
void panfrost_devfreq_fini(struct panfrost_device *pfdev);
void panfrost_devfreq_resume(struct panfrost_device *pfdev);
void panfrost_devfreq_suspend(struct panfrost_device *pfdev);

5
drivers/gpu/drm/panfrost/panfrost_drv.c
View file

@ -547,12 +547,14 @@ static int panfrost_probe(struct platform_device *pdev)
*/
err = drm_dev_register(ddev, 0);
if (err < 0)
goto err_out1;
goto err_out2;
panfrost_gem_shrinker_init(ddev);
return 0;
err_out2:
panfrost_devfreq_fini(pfdev);
err_out1:
panfrost_device_fini(pfdev);
err_out0:
@ -571,6 +573,7 @@ static int panfrost_remove(struct platform_device *pdev)
pm_runtime_get_sync(pfdev->dev);
pm_runtime_put_sync_autosuspend(pfdev->dev);
pm_runtime_disable(pfdev->dev);
panfrost_devfreq_fini(pfdev);
panfrost_device_fini(pfdev);
drm_dev_put(ddev);
return 0;