23b65c3a24
git-subtree-dir: techpack/display git-subtree-mainline:2d46776923git-subtree-split:64f31403b4Change-Id: I7f4c42a3ba6b11a8db861cdd171a52d8f58f2e06
59 lines
1.5 KiB
C
59 lines
1.5 KiB
C
// SPDX-License-Identifier: GPL-2.0-only
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/*
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* Copyright (c) 2020, The Linux Foundation. All rights reserved.
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*/
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#include <linux/sde_vm_event.h>
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#include "msm_drv.h"
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int msm_register_vm_event(struct device *dev, struct device *client_dev,
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struct msm_vm_ops *ops, void *priv_data)
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{
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struct platform_device *pdev = to_platform_device(dev);
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struct drm_device *ddev = platform_get_drvdata(pdev);
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struct msm_drm_private *priv = ddev->dev_private;
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struct msm_vm_client_entry *client_entry;
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if (!client_dev || !ops)
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return -EINVAL;
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client_entry = kzalloc(sizeof(*client_entry), GFP_KERNEL);
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if (!client_entry)
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return -ENOMEM;
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mutex_lock(&priv->vm_client_lock);
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memcpy(&client_entry->ops, ops, sizeof(*ops));
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client_entry->dev = client_dev;
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client_entry->data = priv_data;
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list_add(&client_entry->list, &priv->vm_client_list);
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mutex_unlock(&priv->vm_client_lock);
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return 0;
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}
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EXPORT_SYMBOL(msm_register_vm_event);
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void msm_unregister_vm_event(struct device *dev, struct device *client_dev)
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{
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struct platform_device *pdev = to_platform_device(dev);
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struct drm_device *ddev = platform_get_drvdata(pdev);
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struct msm_drm_private *priv = ddev->dev_private;
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struct msm_vm_client_entry *client_entry, *tmp;
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mutex_lock(&priv->vm_client_lock);
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list_for_each_entry_safe(client_entry, tmp, &priv->vm_client_list,
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list) {
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if (client_entry->dev == client_dev) {
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list_del(&client_entry->list);
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kfree(client_entry);
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break;
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}
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}
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mutex_unlock(&priv->vm_client_lock);
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}
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EXPORT_SYMBOL(msm_unregister_vm_event);
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