NFC: nci: Add post_setup handler

Some drivers require non-standard configuration after NCI_CORE_INIT
request, because they need to know ndev->manufact_specific_info or
ndev->manufact_id. This patch adds post_setup handler allowing to do
such custom configuration.
Signed-off-by: Robert Baldyga <r.baldyga@samsung.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>

include/net/nfc/nci_core.h

@@ -79,6 +79,7 @@ struct nci_ops {
 	int   (*close)(struct nci_dev *ndev);
 	int   (*send)(struct nci_dev *ndev, struct sk_buff *skb);
 	int   (*setup)(struct nci_dev *ndev);
+	int   (*post_setup)(struct nci_dev *ndev);
 	int   (*fw_download)(struct nci_dev *ndev, const char *firmware_name);
 	__u32 (*get_rfprotocol)(struct nci_dev *ndev, __u8 rf_protocol);
 	int   (*discover_se)(struct nci_dev *ndev);

net/nfc/nci/core.c

@@ -388,6 +388,10 @@ static int nci_open_device(struct nci_dev *ndev)
 				   msecs_to_jiffies(NCI_INIT_TIMEOUT));
 	}
 
+	if (ndev->ops->post_setup) {
+		rc = ndev->ops->post_setup(ndev);
+	}
+
 	if (!rc) {
 		rc = __nci_request(ndev, nci_init_complete_req, 0,
 				   msecs_to_jiffies(NCI_INIT_TIMEOUT));