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 --- drivers/gpu/drm/panfrost/panfrost_devfreq.c | 6 ++++++ drivers/gpu/drm/panfrost/panfrost_devfreq.h | 1 + drivers/gpu/drm/panfrost/panfrost_drv.c | 5 ++++- 3 files changed, 11 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/panfrost/panfrost_devfreq.c b/drivers/gpu/drm/panfrost/panfrost_devfreq.c index 77e1ad24de53..710d903f8e0d 100644 --- a/drivers/gpu/drm/panfrost/panfrost_devfreq.c +++ b/drivers/gpu/drm/panfrost/panfrost_devfreq.c @@ -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; diff --git a/drivers/gpu/drm/panfrost/panfrost_devfreq.h b/drivers/gpu/drm/panfrost/panfrost_devfreq.h index eb999531ed90..e3bc63e82843 100644 --- a/drivers/gpu/drm/panfrost/panfrost_devfreq.h +++ b/drivers/gpu/drm/panfrost/panfrost_devfreq.h @@ -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); diff --git a/drivers/gpu/drm/panfrost/panfrost_drv.c b/drivers/gpu/drm/panfrost/panfrost_drv.c index ae70200be44a..44a558c6e17e 100644 --- a/drivers/gpu/drm/panfrost/panfrost_drv.c +++ b/drivers/gpu/drm/panfrost/panfrost_drv.c @@ -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;