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soc: rockchip: rk_fiq_debugger: support 4.19

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cpu hotplug register to hotplug state machine.
use subsys_initcall.

Change-Id: I65431a7b22bf8dcd9b5d4c4a6c4967251038486e
Signed-off-by: Tao Huang <huangtao@rock-chips.com>
This commit is contained in:
Tao Huang
2019-02-19 15:38:53 +08:00
parent cf896fb66f
commit 8396e1599d
1 changed files with 13 additions and 22 deletions
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35
drivers/soc/rockchip/rk_fiq_debugger.c
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@@ -393,24 +393,17 @@ static int fiq_debugger_cpuidle_resume_fiq(struct notifier_block *nb,
* resume all fiq configure at this sisutation. Here, we migrate fiq to any
* online cpu.
*/
static int fiq_debugger_cpu_offine_migrate_fiq(struct notifier_block *nb,
unsigned long action, void *hcpu)
static int fiq_debugger_cpu_offine_migrate_fiq(unsigned int cpu)
{
int target_cpu, cpu = (long)hcpu;
unsigned int target_cpu;
switch (action) {
case CPU_DEAD:
if ((sip_fiq_debugger_is_enabled()) &&
(sip_fiq_debugger_get_target_cpu() == cpu)) {
target_cpu = cpumask_first(cpu_online_mask);
sip_fiq_debugger_switch_cpu(target_cpu);
}
break;
default:
break;
if ((sip_fiq_debugger_is_enabled()) &&
(sip_fiq_debugger_get_target_cpu() == cpu)) {
target_cpu = cpumask_first(cpu_online_mask);
sip_fiq_debugger_switch_cpu(target_cpu);
}
return NOTIFY_OK;
return 0;
}
static struct notifier_block fiq_debugger_pm_notifier = {
@@ -418,17 +411,15 @@ static struct notifier_block fiq_debugger_pm_notifier = {
.priority = 100,
};
static struct notifier_block fiq_debugger_cpu_notifier = {
.notifier_call = fiq_debugger_cpu_offine_migrate_fiq,
.priority = 100,
};
static int rk_fiq_debugger_register_cpu_pm_notify(void)
{
int err;
err = register_cpu_notifier(&fiq_debugger_cpu_notifier);
if (err) {
err = cpuhp_setup_state_nocalls(CPUHP_AP_ONLINE_DYN,
"soc/rk_fiq_debugger",
NULL,
fiq_debugger_cpu_offine_migrate_fiq);
if (err < 0) {
pr_err("fiq debugger register cpu notifier failed!\n");
return err;
}
@@ -711,7 +702,7 @@ static int __init rk_fiqdbg_init(void)
return platform_driver_probe(&rk_fiqdbg_driver,
rk_fiqdbg_probe);
}
arch_initcall_sync(rk_fiqdbg_init);
subsys_initcall(rk_fiqdbg_init); /* after of_platform_default_populate_init */
MODULE_AUTHOR("Huibin Hong <huibin.hong@rock-chips.com>");
MODULE_DESCRIPTION("Rockchip FIQ Debugger");