diff options
| -rw-r--r-- | drivers/thermal/intel/int340x_thermal/processor_thermal_soc_slider.c | 41 |
1 files changed, 41 insertions, 0 deletions
diff --git a/drivers/thermal/intel/int340x_thermal/processor_thermal_soc_slider.c b/drivers/thermal/intel/int340x_thermal/processor_thermal_soc_slider.c index 57782a63b9b5..ffbad6b4326e 100644 --- a/drivers/thermal/intel/int340x_thermal/processor_thermal_soc_slider.c +++ b/drivers/thermal/intel/int340x_thermal/processor_thermal_soc_slider.c @@ -53,6 +53,43 @@ static u8 slider_values[] = { [SOC_POWER_SLIDER_POWERSAVE] = SOC_SLIDER_VALUE_MAXIMUM, }; +/* Lock to protect module param updates */ +static DEFINE_MUTEX(slider_param_lock); + +static int slider_balanced_param = SOC_SLIDER_VALUE_BALANCE; + +static int slider_def_balance_set(const char *arg, const struct kernel_param *kp) +{ + u8 slider_val; + int ret; + + guard(mutex)(&slider_param_lock); + + ret = kstrtou8(arg, 16, &slider_val); + if (!ret) { + if (slider_val > SOC_SLIDER_VALUE_MAXIMUM) + return -EINVAL; + + slider_balanced_param = slider_val; + } + + return ret; +} + +static int slider_def_balance_get(char *buf, const struct kernel_param *kp) +{ + guard(mutex)(&slider_param_lock); + return sysfs_emit(buf, "%02x\n", slider_values[SOC_POWER_SLIDER_BALANCE]); +} + +static const struct kernel_param_ops slider_def_balance_ops = { + .set = slider_def_balance_set, + .get = slider_def_balance_get, +}; + +module_param_cb(slider_balance, &slider_def_balance_ops, NULL, 0644); +MODULE_PARM_DESC(slider_balance, "Set slider default value for balance"); + /* Convert from platform power profile option to SoC slider value */ static int convert_profile_to_power_slider(enum platform_profile_option profile) { @@ -115,6 +152,10 @@ static int power_slider_platform_profile_set(struct device *dev, if (!proc_priv) return -EOPNOTSUPP; + guard(mutex)(&slider_param_lock); + + slider_values[SOC_POWER_SLIDER_BALANCE] = slider_balanced_param; + slider = convert_profile_to_power_slider(profile); if (slider < 0) return slider; |