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-rw-r--r--include/linux/libata.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/include/linux/libata.h b/include/linux/libata.h
index d5fd5c06e755..dd5bcb5d29b5 100644
--- a/include/linux/libata.h
+++ b/include/linux/libata.h
@@ -543,6 +543,9 @@ extern unsigned int ata_busy_sleep(struct ata_port *ap,
unsigned long timeout);
extern void ata_port_queue_task(struct ata_port *ap, void (*fn)(void *),
void *data, unsigned long delay);
+extern u32 ata_wait_register(void __iomem *reg, u32 mask, u32 val,
+ unsigned long interval_msec,
+ unsigned long timeout_msec);
/*
* Default driver ops implementations