1 files changed, 1 insertions, 0 deletions

diff --git a/drivers/ide/legacy/dtc2278.c b/drivers/ide/legacy/dtc2278.c
index 8c4c27e5dc10..6c01d951d074 100644
--- a/drivers/ide/legacy/dtc2278.c
+++ b/drivers/ide/legacy/dtc2278.c
@@ -123,6 +123,7 @@ static int __init dtc2278_probe(void)
 
         hwif->serialized = 1;
         hwif->chipset = ide_dtc2278;
+        hwif->pio_mask = ATA_PIO4;
         hwif->tuneproc = &tune_dtc2278;
         hwif->drives[0].no_unmask = 1;
         hwif->drives[1].no_unmask = 1;