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sparc64: use prom interface to get %stick frequency

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We initialize time early, we must use prom interface instead of open
firmware driver, which is not yet initialized.

Also, use prom_getintdefault() instead of prom_getint() to be compatible
with the code before early boot timestamps project.

Signed-off-by: Pavel Tatashin <pasha.tatashin@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Pavel Tatashin 2017-06-15 10:40:58 -04:00 committed by David S. Miller
parent 9300d9c4ad
commit fca4afe400
1 changed files with 2 additions and 5 deletions
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7
arch/sparc/kernel/time_64.c
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@ -32,7 +32,6 @@
#include <linux/kernel_stat.h>
#include <linux/clockchips.h>
#include <linux/clocksource.h>
#include <linux/of_device.h>
#include <linux/platform_device.h>
#include <linux/ftrace.h>
@ -257,7 +256,7 @@ static int stick_add_compare(unsigned long adj)
static unsigned long stick_get_frequency(void)
{
return prom_getint(prom_root_node, "stick-frequency");
return prom_getintdefault(prom_root_node, "stick-frequency", 0);
}
static struct sparc64_tick_ops stick_operations __read_mostly = {
@ -391,9 +390,7 @@ static int hbtick_add_compare(unsigned long adj)
static unsigned long hbtick_get_frequency(void)
{
struct device_node *dp = of_find_node_by_path("/");
return of_getintprop_default(dp, "stick-frequency", 0);
return prom_getintdefault(prom_root_node, "stick-frequency", 0);
}
static struct sparc64_tick_ops hbtick_operations __read_mostly = {