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ODROID-C4/N2: customize cpufreq/cooling for ODROID-N2

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ODROID-N2 has two cpufreq clusters while ODROID-C4 has one. This patch is
to manage the cpufreq for the different CPU cluster setup while a board is
running instead of buildtime.

Change-Id: I53d8208f5f53d0e83dbe08c9d24123e64cc1e24f
Signed-off-by: Dongjin Kim <tobetter@gmail.com>
This commit is contained in:
Dongjin Kim
2019-08-26 15:08:00 +09:00
committed by Chris KIM
parent 740b4e251c
commit 168e78013b
1 changed files with 27 additions and 11 deletions
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38
drivers/thermal/cpu_cooling.c
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@@ -31,6 +31,10 @@
#include <linux/cpu.h>
#include <linux/cpu_cooling.h>
#ifdef CONFIG_ARCH_MESON64_ODROID_COMMON
#include <linux/platform_data/board_odroid.h>
#endif
#include <trace/events/thermal.h>
/*
@@ -295,17 +299,19 @@ 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);
#ifdef CONFIG_ARCH_MESON64_ODROID_COMMON
if (board_is_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 (cpufreq_device->max_level == 0)
return -EINVAL;
if (num_opps < (cpufreq_device->max_level + 1))
return -EINVAL;
if (num_opps < (cpufreq_device->max_level + 1))
return -EINVAL;
num_opps = cpufreq_device->max_level + 1;
num_opps = cpufreq_device->max_level + 1;
}
#endif
power_table = kcalloc(num_opps, sizeof(*power_table), GFP_KERNEL);
@@ -319,9 +325,18 @@ 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 >= num_opps)
break;
#ifdef CONFIG_ARCH_MESON64_ODROID_COMMON
if (board_is_odroidn2()) {
if (i >= num_opps)
break;
} else {
if (i >= num_opps) {
rcu_read_unlock();
ret = -EAGAIN;
goto free_power_table;
}
}
#else
if (i >= num_opps) {
rcu_read_unlock();
@@ -329,6 +344,7 @@ static int build_dyn_power_table(struct cpufreq_cooling_device *cpufreq_device,
goto free_power_table;
}
#endif
freq_mhz = freq / 1000000;
voltage_mv = dev_pm_opp_get_voltage(opp) / 1000;