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Subject[PATCH v2 6/9] cpufreq: mediatek: Use auto-registration of thermal cooling device
Date
Use the CPUFREQ_AUTO_REGISTER_COOLING_DEV flag to allow cpufreq core to
automatically register as a thermal cooling device.

This allows removal of boiler plate code from the driver.

Signed-off-by: Amit Kucheria <amit.kucheria@linaro.org>
---
drivers/cpufreq/mediatek-cpufreq.c | 14 ++------------
1 file changed, 2 insertions(+), 12 deletions(-)

diff --git a/drivers/cpufreq/mediatek-cpufreq.c b/drivers/cpufreq/mediatek-cpufreq.c
index eb8920d39818..9a937f4c63e7 100644
--- a/drivers/cpufreq/mediatek-cpufreq.c
+++ b/drivers/cpufreq/mediatek-cpufreq.c
@@ -14,7 +14,6 @@

#include <linux/clk.h>
#include <linux/cpu.h>
-#include <linux/cpu_cooling.h>
#include <linux/cpufreq.h>
#include <linux/cpumask.h>
#include <linux/module.h>
@@ -48,7 +47,6 @@ struct mtk_cpu_dvfs_info {
struct regulator *sram_reg;
struct clk *cpu_clk;
struct clk *inter_clk;
- struct thermal_cooling_device *cdev;
struct list_head list_head;
int intermediate_voltage;
bool need_voltage_tracking;
@@ -307,13 +305,6 @@ static int mtk_cpufreq_set_target(struct cpufreq_policy *policy,

#define DYNAMIC_POWER "dynamic-power-coefficient"

-static void mtk_cpufreq_ready(struct cpufreq_policy *policy)
-{
- struct mtk_cpu_dvfs_info *info = policy->driver_data;
-
- info->cdev = of_cpufreq_cooling_register(policy);
-}
-
static int mtk_cpu_dvfs_info_init(struct mtk_cpu_dvfs_info *info, int cpu)
{
struct device *cpu_dev;
@@ -472,7 +463,6 @@ static int mtk_cpufreq_exit(struct cpufreq_policy *policy)
{
struct mtk_cpu_dvfs_info *info = policy->driver_data;

- cpufreq_cooling_unregister(info->cdev);
dev_pm_opp_free_cpufreq_table(info->cpu_dev, &policy->freq_table);

return 0;
@@ -480,13 +470,13 @@ static int mtk_cpufreq_exit(struct cpufreq_policy *policy)

static struct cpufreq_driver mtk_cpufreq_driver = {
.flags = CPUFREQ_STICKY | CPUFREQ_NEED_INITIAL_FREQ_CHECK |
- CPUFREQ_HAVE_GOVERNOR_PER_POLICY,
+ CPUFREQ_HAVE_GOVERNOR_PER_POLICY |
+ CPUFREQ_AUTO_REGISTER_COOLING_DEV,
.verify = cpufreq_generic_frequency_table_verify,
.target_index = mtk_cpufreq_set_target,
.get = cpufreq_generic_get,
.init = mtk_cpufreq_init,
.exit = mtk_cpufreq_exit,
- .ready = mtk_cpufreq_ready,
.name = "mtk-cpufreq",
.attr = cpufreq_generic_attr,
};
--
2.17.1
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