thunderbolt: Make use of SI units from units.h

In a couple of places it seems reasonable to use MEGA intead
of explicit number. It makes code more readable and robust.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>

diff --git a/drivers/thunderbolt/usb4.c b/drivers/thunderbolt/usb4.c
index 28e3ec2d7633fc6b447ad680b4a73dc02163ee82..8dcdde61a15f88161bfaaf8d2ad2d4a45bb7f319 100644 (file)
--- a/drivers/thunderbolt/usb4.c
+++ b/drivers/thunderbolt/usb4.c
@@ -9,6 +9,7 @@
 
 #include <linux/delay.h>
 #include <linux/ktime.h>
+#include <linux/units.h>
 
 #include "sb_regs.h"
 #include "tb.h"
@@ -1968,7 +1969,7 @@ static unsigned int usb3_bw_to_mbps(u32 bw, u8 scale)
        unsigned long uframes;
 
        uframes = bw * 512UL << scale;
-       return DIV_ROUND_CLOSEST(uframes * 8000, 1000 * 1000);
+       return DIV_ROUND_CLOSEST(uframes * 8000, MEGA);
 }
 
 static u32 mbps_to_usb3_bw(unsigned int mbps, u8 scale)
@@ -1976,7 +1977,7 @@ static u32 mbps_to_usb3_bw(unsigned int mbps, u8 scale)
        unsigned long uframes;
 
        /* 1 uframe is 1/8 ms (125 us) -> 1 / 8000 s */
-       uframes = ((unsigned long)mbps * 1000 *  1000) / 8000;
+       uframes = ((unsigned long)mbps * MEGA) / 8000;
        return DIV_ROUND_UP(uframes, 512UL << scale);
 }