diff options
Diffstat (limited to 'drivers/fpga/altera-cvp.c')
| -rw-r--r-- | drivers/fpga/altera-cvp.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/drivers/fpga/altera-cvp.c b/drivers/fpga/altera-cvp.c index 00e73d28077c..b7558acd1a66 100644 --- a/drivers/fpga/altera-cvp.c +++ b/drivers/fpga/altera-cvp.c @@ -404,6 +404,7 @@ static int altera_cvp_probe(struct pci_dev *pdev, { struct altera_cvp_conf *conf; u16 cmd, val; + u32 regval; int ret; /* @@ -417,6 +418,14 @@ static int altera_cvp_probe(struct pci_dev *pdev, return -ENODEV; } + pci_read_config_dword(pdev, VSE_CVP_STATUS, ®val); + if (!(regval & VSE_CVP_STATUS_CVP_EN)) { + dev_err(&pdev->dev, + "CVP is disabled for this device: CVP_STATUS Reg 0x%x\n", + regval); + return -ENODEV; + } + conf = devm_kzalloc(&pdev->dev, sizeof(*conf), GFP_KERNEL); if (!conf) return -ENOMEM; |