usb: chipidea: don't redefine __ffs()
chipidea's ffs_nr() is pretty much what __ffs() does.
Use that one instead.
Signed-off-by: Felipe Balbi <balbi@ti.com>
[rebased on top of debug infrastructure rework]
Signed-off-by: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
diff --git a/drivers/usb/chipidea/ci.h b/drivers/usb/chipidea/ci.h
index c7d4622..68577d1 100644
--- a/drivers/usb/chipidea/ci.h
+++ b/drivers/usb/chipidea/ci.h
@@ -235,19 +235,6 @@
};
/**
- * ffs_nr: find first (least significant) bit set
- * @x: the word to search
- *
- * This function returns bit number (instead of position)
- */
-static inline int ffs_nr(u32 x)
-{
- int n = ffs(x);
-
- return n ? n-1 : 32;
-}
-
-/**
* hw_read: reads from a hw register
* @reg: register index
* @mask: bitfield mask
@@ -305,7 +292,7 @@
u32 val = hw_read(ci, reg, ~0);
hw_write(ci, reg, mask, data);
- return (val & mask) >> ffs_nr(mask);
+ return (val & mask) >> __ffs(mask);
}
int hw_device_reset(struct ci13xxx *ci, u32 mode);