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authorBaolin Wang <baolin.wang7@gmail.com>2020-03-09 16:18:45 +0800
committerSebastian Reichel <sebastian.reichel@collabora.com>2020-03-11 23:32:09 +0100
commit274afbc3ad33136962d66447e89d02e3c142a30a (patch)
tree72573a0373a7528e536cdfd30a414bbd234fc8e7 /drivers/power
parent6cdd5b09cbe67365c42aee539f6fd00f2ecfdaab (diff)
downloadlinux-274afbc3ad33136962d66447e89d02e3c142a30a.tar.bz2
power: reset: sc27xx: Change to use cpu_down()
To allow the SC27XX driver can be built as a module, and the freeze_secondary_cpus() symbol is not exported, thus we can change to use the exported cpu_down() API to shut down other cpus to avoid racing, which is same as the freeze_secondary_cpus(). Signed-off-by: Baolin Wang <baolin.wang7@gmail.com> Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Diffstat (limited to 'drivers/power')
-rw-r--r--drivers/power/reset/sc27xx-poweroff.c9
1 files changed, 6 insertions, 3 deletions
diff --git a/drivers/power/reset/sc27xx-poweroff.c b/drivers/power/reset/sc27xx-poweroff.c
index 2bedd4c58ddc..91b5eceeb810 100644
--- a/drivers/power/reset/sc27xx-poweroff.c
+++ b/drivers/power/reset/sc27xx-poweroff.c
@@ -29,10 +29,13 @@ static struct regmap *regmap;
*/
static void sc27xx_poweroff_shutdown(void)
{
-#ifdef CONFIG_PM_SLEEP_SMP
- int cpu = smp_processor_id();
+#ifdef CONFIG_HOTPLUG_CPU
+ int cpu;
- freeze_secondary_cpus(cpu);
+ for_each_online_cpu(cpu) {
+ if (cpu != smp_processor_id())
+ cpu_down(cpu);
+ }
#endif
}