diff --git a/drivers/ata/pata_platform.c b/drivers/ata/pata_platform.c
index 4b82a5435a4ebfc1f558afa89bf088bb9d4dc565..507eb1ee05f8cf3a869e0600a14a7a1ff12a3ed5 100644
--- a/drivers/ata/pata_platform.c
+++ b/drivers/ata/pata_platform.c
@@ -80,6 +80,7 @@ static struct ata_port_operations pata_platform_port_ops = {
 	.thaw			= ata_bmdma_thaw,
 	.error_handler		= ata_bmdma_error_handler,
 	.post_internal_cmd	= ata_bmdma_post_internal_cmd,
+	.cable_detect		= ata_cable_unknown,
 
 	.qc_prep		= ata_qc_prep,
 	.qc_issue		= ata_qc_issue_prot,