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- /****************************************************************************
- *
- * The MIT License (MIT)
- *
- * Copyright (c) 2020 VeriSilicon Holdings Co., Ltd.
- *
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the "Software"),
- * to deal in the Software without restriction, including without limitation
- * the rights to use, copy, modify, merge, publish, distribute, sublicense,
- * and/or sell copies of the Software, and to permit persons to whom the
- * Software is furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in
- * all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
- * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
- * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
- * DEALINGS IN THE SOFTWARE.
- *
- *****************************************************************************
- *
- * The GPL License (GPL)
- *
- * Copyright (c) 2020 VeriSilicon Holdings Co., Ltd.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version 2
- * of the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program;
- *
- *****************************************************************************
- *
- * Note: This software is released under dual MIT and GPL licenses. A
- * recipient may use this file under the terms of either the MIT license or
- * GPL License. If you wish to use only one license not the other, you can
- * indicate your decision by deleting one of the above license notices in your
- * version of this file.
- *
- *****************************************************************************/
- #include <asm/io.h>
- #include <linux/cdev.h>
- #include <linux/module.h>
- #include <linux/platform_device.h>
- #include <linux/delay.h>
- #include <linux/clk.h>
- #include <linux/pm_runtime.h>
- #include <linux/io.h>
- #include <linux/mm.h>
- #include <linux/slab.h>
- #include <linux/proc_fs.h>
- #include <linux/debugfs.h>
- #include <linux/miscdevice.h>
- #include <linux/uaccess.h>
- #include <linux/interrupt.h>
- #include <linux/of_address.h>
- #include "dw200_ioctl.h"
- #include "vivdw200_irq_queue.h"
- #define VIVCAM_DWE_NAME "vivdw200"
- #define VIVCAM_DWE_MAXCNT 1
- //#undef USE_RESERVED_MEM
- #ifdef __KERNEL__
- #define dw_info(...)
- #else
- #define dw_info(...)
- #endif
- struct vvcam_dwe_driver_dev
- {
- struct cdev cdev;
- dev_t devt;
- struct class *class;
- struct mutex vvmutex;
- unsigned int irq_num[2];
- struct vvcam_dwe_per_file_dev *current_file;
- unsigned long long int dw200_userid;
- struct platform_device *pdev;
- #ifdef USE_RESERVED_MEM
- struct resource mem;
- #endif
- struct clk *aclk;
- struct clk *hclk;
- struct clk *vseclk;
- struct clk *dweclk;
- struct task_struct *locker;
- };
- struct vvcam_dwe_per_file_dev
- {
- wait_queue_head_t irq_wait;
- bool irq_trigger;
- void *private; // point to dw200_subdev{}
- int id;
- struct vvcam_dwe_driver_dev *pdriver_dev; // point to global vvcam_dwe_driver_dev
- };
- static unsigned int vvcam_dwe_major = 0;
- static unsigned int vvcam_dwe_minor = 0;
- struct class *vvcam_dwe_class;
- static unsigned int devise_register_index = 0;
- static unsigned int vvcam_dwe_poll(struct file * filp, poll_table *wait)
- {
- unsigned int mask = 0;
- struct vvcam_dwe_per_file_dev *per_file = (struct vvcam_dwe_per_file_dev *)filp->private_data;
- poll_wait(filp, &per_file->irq_wait, wait);
- dw_info("poll dwe_irq %d for irq_wait %p id=%d\n", per_file->irq_trigger, &per_file->irq_wait, per_file->id);
- if (per_file->irq_trigger) {
- mask |= POLLIN |POLLRDNORM;
- dw_info("poll notify user space\n");
- per_file->irq_trigger = false;
- }
- return mask;
- }
- irqreturn_t vivdw200_interrupt(int irq, void* dev_id)
- {
- dw_info(" %s enter\n", __func__);
- vivdw200_mis_t node;
- unsigned int dwe_mis, vse_mis;
- struct vvcam_dwe_driver_dev *pdriver_dev = dev_id;
- struct vvcam_dwe_per_file_dev *current_file = pdriver_dev->current_file;
- struct dw200_subdev *pdw200 = (struct dw200_subdev *)current_file->private;
- dw_info("%s current per_file=%p,pdw200=%p id=%d\n", __func__, current_file, pdw200, current_file->id);
- dwe_mis = 0;
- vse_mis = 0;
- dwe_read_irq((struct dw200_subdev *)pdw200, &dwe_mis);
- dwe_mis = dwe_mis & (~0xff00);
- if (0 != dwe_mis) {
- dw_info(" %s dwe mis 0x%08x\n", __func__, dwe_mis);
- dwe_clear_irq((struct dw200_subdev *)pdw200, dwe_mis <<24);
- node.val = dwe_mis;
- vivdw200_write_circle_queue(&node, &pdw200->dwe_circle_list);
- current_file->irq_trigger |= true;
- }
- vse_read_irq((struct dw200_subdev *)pdw200, &vse_mis);
- if (0 != vse_mis) {
- dw_info(" %s vse mis 0x%08x\n", __func__, vse_mis);
- vse_clear_irq((struct dw200_subdev *)pdw200, vse_mis);
- node.val = vse_mis;
- vivdw200_write_circle_queue(&node, &pdw200->vse_circle_list);
- current_file->irq_trigger |= true;
- }
- if (dwe_mis || vse_mis){
- wake_up_interruptible(¤t_file->irq_wait);
- } else {
- return IRQ_HANDLED; // return IRQ_NONE;
- }
- dw_info(" %s exit\n", __func__);
- return IRQ_HANDLED;
- }
- static int vvcam_dwe_open(struct inode * inode, struct file * file)
- {
- struct vvcam_dwe_driver_dev *pdriver_dev = container_of(inode->i_cdev, struct vvcam_dwe_driver_dev, cdev);
- struct dw200_subdev * pdw200 = kzalloc(sizeof(struct dw200_subdev), GFP_KERNEL);
- struct vvcam_dwe_per_file_dev *per_file = kzalloc(sizeof(struct vvcam_dwe_per_file_dev), GFP_KERNEL);
- per_file->id = pdriver_dev->dw200_userid++;
- dw_info("%s per_file=%p,pdw200=%p id=%d\n", __func__, per_file, pdw200, per_file->id);
- pdw200->dwe_base = ioremap(DWE_REG_BASE, DWE_REG_SIZE);
- pdw200->vse_base = ioremap(VSE_REG_BASE, VSE_REG_SIZE);
- #ifdef DWE_REG_RESET
- pdwe_dev->dwe_reset = ioremap(DWE_REG_RESET, 4);
- #endif
- #ifdef VSE_REG_RESET
- pdwe_dev->vse_reset = ioremap(VSE_REG_RESET, 4);
- #endif
- file->private_data = per_file;
- per_file->private = pdw200;
- per_file->pdriver_dev = pdriver_dev;
- /*create circle queue*/
- vivdw200_create_circle_queue(&(pdw200->dwe_circle_list), QUEUE_NODE_COUNT);
- vivdw200_create_circle_queue(&(pdw200->vse_circle_list), QUEUE_NODE_COUNT);
- init_waitqueue_head(&per_file->irq_wait);
- pdw200->vvmutex = &pdriver_dev->vvmutex;
- return 0;
- };
- static long vvcam_dwe_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
- {
- long ret = 0;
- struct dw200_subdev* pdwe_dev;
- struct vvcam_dwe_per_file_dev *per_file = (struct vvcam_dwe_per_file_dev *)file->private_data;
- struct vvcam_dwe_driver_dev *pdriver_dev = per_file->pdriver_dev;
- struct device *dev = &pdriver_dev->pdev->dev;
-
- if (per_file == NULL)
- {
- pr_err("%s:file private is null point error\n", __func__);
- return -ENOMEM;
- }
- pdwe_dev = per_file->private;
- dw_info("%s cmd=0x%x id=%d", __func__, cmd, per_file->id);
- switch (cmd) {
- case DW200IOC_UPDATECURR:
- pdriver_dev->current_file = per_file;
- dw_info("DW200IOC_UPDATECURR\n");
- break;
- #ifdef USE_RESERVED_MEM
- case DW200IOC_GET_RESERVE_ADDR:
- copy_to_user(arg, &pdriver_dev->mem.start, sizeof(uint32_t));
- dw_info("DW200IOC_GET_RESERVE_ADDR copied pdriver_dev->mem.start 0x%x\n", pdriver_dev->mem.start);
- break;
- #endif
- case DW200IOC_RUNTIME_RESUME:
- pm_runtime_resume_and_get(dev);
- break;
- case DW200IOC_RUNTIME_SUSPEND:
- pm_runtime_put_sync(dev);
- break;
- case DW200IOC_LOCK:
- mutex_lock(pdwe_dev->vvmutex);
- pdriver_dev->locker = current;
- break;
- case DW200IOC_UNLOCK:
- mutex_unlock(pdwe_dev->vvmutex);
- pdriver_dev->locker = NULL;
- break;
- }
- ret = dw200_priv_ioctl(pdwe_dev, cmd ,(void *)arg);
- return ret;
- };
- static int vvcam_dwe_release(struct inode * inode, struct file * file)
- {
- struct vvcam_dwe_per_file_dev *per_file = (struct vvcam_dwe_per_file_dev *)file->private_data;
- struct dw200_subdev * pdw200;
- pdw200 = (struct dw200_subdev *)per_file->private;
- struct vvcam_dwe_driver_dev *pdriver_dev = per_file->pdriver_dev;
- struct task_struct *owner = (struct task_struct *)(atomic_long_read(&pdw200->vvmutex->owner) & ~0x07);
- if (owner == pdriver_dev->locker && owner != NULL) {
- printk("unlocked with owner=%p\n", owner);
- mutex_unlock(pdw200->vvmutex);
- }
- /*destory circle queue*/
- vivdw200_destroy_circle_queue(&(pdw200->dwe_circle_list));
- vivdw200_destroy_circle_queue(&(pdw200->vse_circle_list));
- kfree(per_file);
- return 0;
- };
- static int vvcam_dwe_mmap(struct file *file, struct vm_area_struct *vma)
- {
- struct vvcam_dwe_per_file_dev *per_file = (struct vvcam_dwe_per_file_dev *)file->private_data;
- struct vvcam_dwe_driver_dev *pdriver_dev = per_file->pdriver_dev;
- int ret = 0;
- #ifdef USE_RESERVED_MEM
- unsigned long pfn_start = phys_to_pfn(pdriver_dev->mem.start) + vma->vm_pgoff;
- unsigned long size = vma->vm_end - vma->vm_start;
- dw_info("phy: 0x%lx, size: 0x%lx PAGE_SHIFT: %d vma->vm_pgoff: 0x%lx vma->vm_start: 0x%lx\n", pfn_to_phys(pfn_start), size, PAGE_SHIFT, vma->vm_pgoff, vma->vm_start);
- vma->vm_page_prot = pgprot_writecombine(vma->vm_page_prot);
- if (remap_pfn_range(vma, vma->vm_start, pfn_start, size, vma->vm_page_prot))
- {
- pr_err("-->%s: remap_pfn_range error!\n", __func__);
- return -EIO;
- }
- #else
- ret = -EIO;
- #endif
- return ret;
- };
- struct file_operations vvcam_dwe_fops = {
- .owner = THIS_MODULE,
- .open = vvcam_dwe_open,
- .release = vvcam_dwe_release,
- .unlocked_ioctl = vvcam_dwe_ioctl,
- .poll = vvcam_dwe_poll,
- .mmap = vvcam_dwe_mmap,
- };
- static int vvcam_dwe_runtime_suspend(struct device *dev)
- {
- struct vvcam_dwe_driver_dev *pdriver_dev = dev_get_drvdata(dev);
- if (IS_ERR(pdriver_dev->dweclk) || IS_ERR(pdriver_dev->vseclk)
- || IS_ERR(pdriver_dev->hclk) || IS_ERR(pdriver_dev->aclk)) {
- return 0;
- }
-
- dw_info("%s\n", __func__);
- clk_disable_unprepare(pdriver_dev->aclk);
- clk_disable_unprepare(pdriver_dev->hclk);
- clk_disable_unprepare(pdriver_dev->vseclk);
- clk_disable_unprepare(pdriver_dev->dweclk);
- return 0;
- }
- static int vvcam_dwe_runtime_resume(struct device *dev)
- {
- struct vvcam_dwe_driver_dev *pdriver_dev = dev_get_drvdata(dev);
- int ret = 0;
- if (IS_ERR(pdriver_dev->dweclk) || IS_ERR(pdriver_dev->vseclk)
- || IS_ERR(pdriver_dev->hclk) || IS_ERR(pdriver_dev->aclk)) {
- return 0;
- }
- ret = clk_prepare_enable(pdriver_dev->dweclk);
- if (ret < 0) {
- dev_err(dev, "could not prepare or enable dwe clock\n");
- }
- ret = clk_prepare_enable(pdriver_dev->vseclk);
- if (ret < 0) {
- dev_err(dev, "could not prepare or enable vse clock\n");
- clk_disable_unprepare(pdriver_dev->dweclk);
- //return ret;
- }
- ret = clk_prepare_enable(pdriver_dev->hclk);
- if (ret < 0) {
- dev_err(dev, "could not prepare or enable ahb clock\n");
- clk_disable_unprepare(pdriver_dev->dweclk);
- clk_disable_unprepare(pdriver_dev->vseclk);
- //return ret;
- }
- ret = clk_prepare_enable(pdriver_dev->aclk);
- if (ret < 0) {
- dev_err(dev, "could not prepare or enable axi clock\n");
- clk_disable_unprepare(pdriver_dev->dweclk);
- clk_disable_unprepare(pdriver_dev->vseclk);
- clk_disable_unprepare(pdriver_dev->hclk);
- //return ret;
- }
- dw_info("%s Enabled clock\n", __func__);
- return ret;
- }
- static const struct dev_pm_ops vvcam_dwe_runtime_pm_ops = {
- SET_RUNTIME_PM_OPS(vvcam_dwe_runtime_suspend, vvcam_dwe_runtime_resume, NULL)
- };
- void __iomem *visys_sw_rst;
- #ifdef USE_RESERVED_MEM
- static int vvcam_dwe_of_parse(struct platform_device *pdev)
- {
- struct device *dev = &pdev->dev;
- struct device_node *np;
- int ret = 0;
- struct vvcam_dwe_driver_dev *pdriver_dev = platform_get_drvdata(pdev);
- np = of_parse_phandle(dev->of_node, "memory-region", 0);
- if (!np) {
- dev_err(dev, "No %s specified\n", "memory-region");
- return -EINVAL;
- }
- ret = of_address_to_resource(np, 0, &pdriver_dev->mem);
- if (ret) {
- dev_err(dev, "of_address_to_resource fail\n");
- return ret;
- }
- dw_info("%s got mem start 0x%x size 0x%x\n", __func__, pdriver_dev->mem.start, resource_size(&pdriver_dev->mem));
- return ret;
- }
- #endif
- static int vvcam_dwe_probe(struct platform_device *pdev)
- {
- int ret = 0;
- struct vvcam_dwe_driver_dev *pdriver_dev;
- dw_info("enter %s\n", __func__);
- if (pdev->id >= VIVCAM_DWE_MAXCNT)
- {
- pr_err("%s:pdev id is %d error\n", __func__,pdev->id);
- return -EINVAL;
- }
- pdriver_dev = devm_kzalloc(&pdev->dev,sizeof(struct vvcam_dwe_driver_dev), GFP_KERNEL);
- if (pdriver_dev == NULL)
- {
- pr_err("%s:alloc struct vvcam_soc_driver_dev error\n", __func__);
- return -ENOMEM;
- }
- memset(pdriver_dev,0,sizeof(struct vvcam_dwe_driver_dev ));
- visys_sw_rst = ioremap(0xffe4040100, 0x00001000);
- #ifdef DWE_REG_RESET
- pdwe_dev->dwe_reset = ioremap(DWE_REG_RESET, 4);
- #endif
- #ifdef VSE_REG_RESET
- pdwe_dev->vse_reset = ioremap(VSE_REG_RESET, 4);
- #endif
- mutex_init(&pdriver_dev->vvmutex);
- platform_set_drvdata(pdev, pdriver_dev);
- pdriver_dev->pdev = pdev;
- pdriver_dev->irq_num[0] = platform_get_irq(pdev, 0);
- if (pdriver_dev->irq_num[0] == 0) {
- pr_err("%s:dw200_[%d]: could not map IRQ\n", __func__, pdev->id);
- dev_err(&pdev->dev, "could not map IRQ.\n");
- return -ENXIO;
- }
- dw_info("%s:dw200_[%d]: pdriver_dev->irq_num[0]=%d\n", __func__, pdev->id, pdriver_dev->irq_num[0]);
- pdriver_dev->irq_num[1] = platform_get_irq(pdev, 1);
- if (pdriver_dev->irq_num[1] == 0) {
- pr_err("%s:dw200_[%d]: could not map IRQ\n", __func__, pdev->id);
- dev_err(&pdev->dev, "could not map IRQ.\n");
- return -ENXIO;
- }
- dw_info("%s:dw200_[%d]: pdriver_dev->irq_num[1]=%d\n", __func__, pdev->id, pdriver_dev->irq_num[1]);
- ret = request_irq(pdriver_dev->irq_num[0], vivdw200_interrupt,
- IRQF_SHARED|IRQF_TRIGGER_RISING, "DEWARP_IRQ", (char *)pdriver_dev);
- if (ret) {
- pr_err("%s[%d]:request irq error!\n", __func__, __LINE__);
- return ret;
- }
- ret = request_irq(pdriver_dev->irq_num[1], vivdw200_interrupt,
- IRQF_SHARED|IRQF_TRIGGER_RISING, "SCALAR_IRQ", (char *)pdriver_dev);
- if (ret) {
- pr_err("%s[%d]:request irq error!\n", __func__, __LINE__);
- return ret;
- }
- #ifdef USE_RESERVED_MEM
- ret = vvcam_dwe_of_parse(pdev);
- if (ret) {
- pr_err("%s[%d]: vvcam_dwe_of_parse error!\n", __func__, __LINE__);
- return ret;
- }
- #else
- pr_info("%s:disable vvcam_dwe_of_parse reserved-memory\n", __func__);
- #endif
- if (devise_register_index == 0)
- {
- if (vvcam_dwe_major == 0)
- {
- ret = alloc_chrdev_region(&pdriver_dev->devt, 0, VIVCAM_DWE_MAXCNT, VIVCAM_DWE_NAME);
- if (ret != 0)
- {
- pr_err("%s:alloc_chrdev_region error\n", __func__);
- return ret;
- }
- vvcam_dwe_major = MAJOR(pdriver_dev->devt);
- vvcam_dwe_minor = MINOR(pdriver_dev->devt);
- }
- else
- {
- pdriver_dev->devt = MKDEV(vvcam_dwe_major, vvcam_dwe_minor);
- ret = register_chrdev_region(pdriver_dev->devt, VIVCAM_DWE_MAXCNT, VIVCAM_DWE_NAME);
- if (ret)
- {
- pr_err("%s:register_chrdev_region error\n", __func__);
- return ret;
- }
- }
- vvcam_dwe_class = class_create(THIS_MODULE, VIVCAM_DWE_NAME);
- if (IS_ERR(vvcam_dwe_class))
- {
- pr_err("%s[%d]:class_create error!\n", __func__, __LINE__);
- return -EINVAL;
- }
- }
- pdriver_dev->devt = MKDEV(vvcam_dwe_major, vvcam_dwe_minor + pdev->id + 1); // just in case platform instance num is -1
- cdev_init(&pdriver_dev->cdev, &vvcam_dwe_fops);
- ret = cdev_add(&pdriver_dev->cdev, pdriver_dev->devt, 1);
- if ( ret )
- {
- pr_err("%s[%d]:cdev_add error!\n", __func__, __LINE__);
- return ret;
- }
- pdriver_dev->class = vvcam_dwe_class;
- device_create(pdriver_dev->class, NULL, pdriver_dev->devt,
- pdriver_dev, "%s", VIVCAM_DWE_NAME);
- devise_register_index++;
- pdriver_dev->dweclk = devm_clk_get(&pdev->dev, "dweclk");
- if (IS_ERR(pdriver_dev->dweclk)) {
- dev_err(&pdev->dev, "failed to get dwe clk");
- //return -1;
- }
- pdriver_dev->vseclk = devm_clk_get(&pdev->dev, "vseclk");
- if (IS_ERR(pdriver_dev->vseclk)) {
- dev_err(&pdev->dev, "failed to get vse clk");
- //return -1;
- }
- pdriver_dev->hclk = devm_clk_get(&pdev->dev, "hclk");
- if (IS_ERR(pdriver_dev->hclk)) {
- dev_err(&pdev->dev, "failed to get hclk");
- //return -1;
- }
- pdriver_dev->aclk = devm_clk_get(&pdev->dev, "aclk");
- if (IS_ERR(pdriver_dev->aclk)) {
- dev_err(&pdev->dev, "failed to get aclk");
- //return -1;
- }
- pm_runtime_enable(&pdev->dev);
- pm_runtime_resume_and_get(&pdev->dev);
- pm_runtime_put_sync(&pdev->dev);
- dw_info("exit %s:[%d]\n", __func__, pdev->id);
- return ret;
- }
- static int vvcam_dwe_remove(struct platform_device *pdev)
- {
- struct vvcam_dwe_driver_dev *pdriver_dev;
- //struct dw200_subdev * pdwe_dev;
- dw_info("enter %s\n", __func__);
- devise_register_index--;
- pdriver_dev = platform_get_drvdata(pdev);
- free_irq(pdriver_dev->irq_num[0], pdriver_dev);
- free_irq(pdriver_dev->irq_num[1], pdriver_dev);
- //pdwe_dev = pdriver_dev->private;
- //iounmap(pdwe_dev->dwe_base);
- //iounmap(pdwe_dev->vse_base);
- //iounmap(pdwe_dev->dwe_reset);
- //iounmap(pdwe_dev->vse_reset);
- pm_runtime_disable(&pdev->dev);
- if (!pm_runtime_status_suspended(&pdev->dev)) { // turn off the power regardless of the ref cnt
- vvcam_dwe_runtime_suspend(&pdev->dev);
- }
-
- cdev_del(&pdriver_dev->cdev);
- device_destroy(pdriver_dev->class, pdriver_dev->devt);
- unregister_chrdev_region(pdriver_dev->devt, VIVCAM_DWE_MAXCNT);
- if (devise_register_index == 0)
- {
- class_destroy(pdriver_dev->class);
- }
- return 0;
- }
- static const struct of_device_id dewarp_of_match[] = {
- { .compatible = "thead,light-dewarp", },
- { /* sentinel */ },
- };
- static struct platform_driver vvcam_dwe_driver = {
- .probe = vvcam_dwe_probe,
- .remove = vvcam_dwe_remove,
- .driver = {
- .name = VIVCAM_DWE_NAME,
- .owner = THIS_MODULE,
- .of_match_table = of_match_ptr(dewarp_of_match),
- .pm = &vvcam_dwe_runtime_pm_ops,
- }
- };
- static int __init vvcam_dwe_init_module(void)
- {
- int ret = 0;
- dw_info("enter %s\n", __func__);
- ret = platform_driver_register(&vvcam_dwe_driver);
- if (ret)
- {
- pr_err("register platform driver failed.\n");
- return ret;
- }
- return ret;
- }
- static void __exit vvcam_dwe_exit_module(void)
- {
- dw_info("enter %s\n", __func__);
- platform_driver_unregister(&vvcam_dwe_driver);
- }
- module_init(vvcam_dwe_init_module);
- module_exit(vvcam_dwe_exit_module);
- MODULE_DESCRIPTION("DWE");
- MODULE_LICENSE("GPL");
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