From 0aedca7173ce04e087c0e882316fe2e26b9966ee Mon Sep 17 00:00:00 2001
From: Leo Yan <leo.yan@linaro.org>
Date: Thu, 15 Jun 2017 13:51:22 +0800
Subject: [PATCH] plat: Hikey960: fix the CPU hotplug
In CPU off callback function, the old code uses the function
hisi_test_pwrdn_allcores() to check if all CPUs in cluster have been
powered off and if it's valid then power off the whole cluster. But the
function hisi_test_pwrdn_allcores() only maintains the different power
states only for CPU suspend/resume flow, so it cannot return correct
states for CPU on/off flow.
This patch is to change use hisi_test_cpu_down() to check if all CPUs
have been powered off, so that can power off the whole cluster properly
when all CPUs in cluster have been hotplugged off.
Signed-off-by: Tao Wang <kevin.wangtao@hisilicon.com>
Signed-off-by: Leo Yan <leo.yan@linaro.org>
---
plat/hisilicon/hikey960/hikey960_pm.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/plat/hisilicon/hikey960/hikey960_pm.c b/plat/hisilicon/hikey960/hikey960_pm.c
index 257299e80..3447c9f11 100644
--- a/plat/hisilicon/hikey960/hikey960_pm.c
+++ b/plat/hisilicon/hikey960/hikey960_pm.c
@@ -102,7 +102,7 @@ void hikey960_pwr_domain_off(const psci_power_state_t *target_state)
hisi_powerdn_core(cluster, core);
/* check if any core is powered up */
- if (hisi_test_pwrdn_allcores(cluster, core)) {
+ if (hisi_test_cpu_down(cluster, core)) {
cci_disable_snoop_dvm_reqs(MPIDR_AFFLVL1_VAL(read_mpidr_el1()));
--
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