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ODROID-N2: thermal: add an exeception logic to control max cpu level

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Change-Id: I880b89d828034b029e306bda7c8be9004c3ec913
FIXME: find a better way not to modify thermal core drivers
This commit is contained in:
Joy Cho
2018-12-06 10:31:36 +09:00
committed by Dongjin Kim
parent 4f269734d7
commit 12dc36630f
1 changed files with 28 additions and 2 deletions
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30
drivers/thermal/cpu_cooling.c
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@@ -295,9 +295,25 @@ static int build_dyn_power_table(struct cpufreq_cooling_device *cpufreq_device,
if (num_opps == 0)
return -EINVAL;
#ifdef CONFIG_ARCH_MESON64_ODROIDN2
pr_debug("[%s] num_opps %d cpufreq max_level %d\n",
__func__, num_opps, cpufreq_device->max_level);
if (cpufreq_device->max_level == 0)
return -EINVAL;
if (num_opps < cpufreq_device->max_level)
return -EINVAL;
power_table = kcalloc(cpufreq_device->max_level,
sizeof(*power_table), GFP_KERNEL);
if (!power_table)
return -ENOMEM;
#else
power_table = kcalloc(num_opps, sizeof(*power_table), GFP_KERNEL);
if (!power_table)
return -ENOMEM;
#endif
rcu_read_lock();
@@ -306,13 +322,16 @@ static int build_dyn_power_table(struct cpufreq_cooling_device *cpufreq_device,
freq++, i++) {
u32 freq_mhz, voltage_mv;
u64 power;
#ifdef CONFIG_ARCH_MESON64_ODROIDN2
if (i >= cpufreq_device->max_level)
break;
#else
if (i >= num_opps) {
rcu_read_unlock();
ret = -EAGAIN;
goto free_power_table;
}
#endif
freq_mhz = freq / 1000000;
voltage_mv = dev_pm_opp_get_voltage(opp) / 1000;
@@ -332,10 +351,17 @@ static int build_dyn_power_table(struct cpufreq_cooling_device *cpufreq_device,
rcu_read_unlock();
#ifdef CONFIG_ARCH_MESON64_ODROIDN2
if (i != cpufreq_device->max_level) {
ret = PTR_ERR(opp);
goto free_power_table;
}
#else
if (i != num_opps) {
ret = PTR_ERR(opp);
goto free_power_table;
}
#endif
cpufreq_device->cpu_dev = dev;
cpufreq_device->dyn_power_table = power_table;