VOID
STATIC
PerformThisPmStep (
  IN       VOID *Step,
  IN       AMD_CONFIG_PARAMS    *StdHeader,
  IN       AMD_CPU_EARLY_PARAMS *CpuEarlyParamsPtr
  );
VOID
STATIC
GoToMemInitPstateCore0 (
  IN       AMD_CONFIG_PARAMS *StdHeader,
  IN       AMD_CPU_EARLY_PARAMS *CpuEarlyParamsPtr
  );
VOID
STATIC
GoToMemInitPstateCore (
  IN       AMD_CONFIG_PARAMS *StdHeader,
  IN       AMD_CPU_EARLY_PARAMS *CpuEarlyParamsPtr
  );
static void cx23885_clear_bridge_error(struct cx23885_dev *dev)
 {
   uint32_t reg1_val = cx_read(TC_REQ); /* read-only */
   uint32_t reg2_val = cx_read(TC_REQ_SET);
   uint32_t reg1_val, reg2_val;

   if (!dev->need_dma_reset)
      return;

   reg1_val = cx_read(TC_REQ); /* read-only */
   reg2_val = cx_read(TC_REQ_SET);
 
    if (reg1_val && reg2_val) {
       cx_write(TC_REQ, reg1_val);
 }
 
static struct {
   int vendor, dev;
} const broken_dev_id[] = {

   { PCI_VENDOR_ID_AMD, 0x1451 },
};

static bool cx23885_does_need_dma_reset(void)
{
   int i;
   struct pci_dev *pdev = NULL;

   if (dma_reset_workaround == 0)
      return false;
   else if (dma_reset_workaround == 2)
      return true;

   for (i = 0; i < ARRAY_SIZE(broken_dev_id); i++) {
      pdev = pci_get_device(broken_dev_id[i].vendor,
                  broken_dev_id[i].dev, NULL);
      if (pdev) {
         pci_dev_put(pdev);
         return true;
      }
   }
   return false;
}

 static int cx23885_initdev(struct pci_dev *pci_dev,
             const struct pci_device_id *pci_id)
 {
    if (NULL == dev)
       return -ENOMEM;
 
   dev->need_dma_reset = cx23885_does_need_dma_reset();

    err = v4l2_device_register(&pci_dev->dev, &dev->v4l2_dev);
    if (err < 0)
       goto fail_free;
 }