[src/trunk]: src/sys/arch/arm/sunxi Fix sun4i platform delay to sleep the req...

[jmcneill <jmcneill%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/49df9e04829a
branches:  trunk
changeset: 827223:49df9e04829a
user:      jmcneill <jmcneill%NetBSD.org@localhost>
date:      Sat Oct 21 02:21:30 2017 +0000

description:
Fix sun4i platform delay to sleep the requested number of microseconds
instead of the requested number of clock ticks.

diffstat:

 sys/arch/arm/sunxi/sunxi_platform.c |  7 ++++---
 1 files changed, 4 insertions(+), 3 deletions(-)

diffs (29 lines):

diff -r 856dc5ee5159 -r 49df9e04829a sys/arch/arm/sunxi/sunxi_platform.c
--- a/sys/arch/arm/sunxi/sunxi_platform.c       Sat Oct 21 02:06:34 2017 +0000
+++ b/sys/arch/arm/sunxi/sunxi_platform.c       Sat Oct 21 02:21:30 2017 +0000
@@ -1,4 +1,4 @@
-/* $NetBSD: sunxi_platform.c,v 1.11 2017/10/11 10:52:54 jmcneill Exp $ */
+/* $NetBSD: sunxi_platform.c,v 1.12 2017/10/21 02:21:30 jmcneill Exp $ */
 
 /*-
  * Copyright (c) 2017 Jared McNeill <jmcneill%invisible.ca@localhost>
@@ -31,7 +31,7 @@
 #include "opt_fdt_arm.h"
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: sunxi_platform.c,v 1.11 2017/10/11 10:52:54 jmcneill Exp $");
+__KERNEL_RCSID(0, "$NetBSD: sunxi_platform.c,v 1.12 2017/10/21 02:21:30 jmcneill Exp $");
 
 #include <sys/param.h>
 #include <sys/bus.h>
@@ -194,8 +194,9 @@
 {
        static bus_space_tag_t bst = &armv7_generic_bs_tag;
        static bus_space_handle_t bsh = 0;
+       const long incs_per_us = SUNXI_REF_FREQ / 1000000;
+       long ticks = n * incs_per_us;
        uint32_t cur, prev;
-       long ticks = n;
 
        if (bsh == 0)
                bus_space_map(bst, SUN4I_TIMER_BASE, SUN4I_TIMER_SIZE, 0, &bsh);