Pull ARM fixes from Russell King:
"A couple of ARM fixes from Linus for the ICST clock generator code"
[ "Linus" here is Linus Walleij. Name-stealer.
Linus "there can be only one" Torvalds ]
* 'fixes' of git://ftp.arm.linux.org.uk/~rmk/linux-arm:
ARM: 8519/1: ICST: try other dividends than 1
ARM: 8517/1: ICST: avoid arithmetic overflow in icst_hz()
*/
#include <linux/module.h>
#include <linux/kernel.h>
-
+#include <asm/div64.h>
#include <asm/hardware/icst.h>
/*
unsigned long icst_hz(const struct icst_params *p, struct icst_vco vco)
{
- return p->ref * 2 * (vco.v + 8) / ((vco.r + 2) * p->s2div[vco.s]);
+ u64 dividend = p->ref * 2 * (u64)(vco.v + 8);
+ u32 divisor = (vco.r + 2) * p->s2div[vco.s];
+
+ do_div(dividend, divisor);
+ return (unsigned long)dividend;
}
EXPORT_SYMBOL(icst_hz);
if (f > p->vco_min && f <= p->vco_max)
break;
+ i++;
} while (i < 8);
if (i >= 8)