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soc: rockchip: rockchip_system_monitor: Fix panic when devfreq is NULL

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Signed-off-by: Finley Xiao <finley.xiao@rock-chips.com>
Change-Id: I00c5fb9d4d68c2643b382ae40603f3bb25d9e0f5
This commit is contained in:
Finley Xiao
2023-02-27 16:57:48 +08:00
committed by Tao Huang
parent e175652953
commit c800548c78
1 changed files with 40 additions and 12 deletions
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52
drivers/soc/rockchip/rockchip_system_monitor.c
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@@ -770,14 +770,18 @@ static int monitor_device_parse_dt(struct device *dev,
int rockchip_monitor_cpu_low_temp_adjust(struct monitor_dev_info *info,
bool is_low)
{
if (info->low_limit) {
if (is_low)
freq_qos_update_request(&info->max_temp_freq_req,
info->low_limit / 1000);
else
freq_qos_update_request(&info->max_temp_freq_req,
FREQ_QOS_MAX_DEFAULT_VALUE);
}
if (!info->low_limit)
return 0;
if (!freq_qos_request_active(&info->max_temp_freq_req))
return 0;
if (is_low)
freq_qos_update_request(&info->max_temp_freq_req,
info->low_limit / 1000);
else
freq_qos_update_request(&info->max_temp_freq_req,
FREQ_QOS_MAX_DEFAULT_VALUE);
return 0;
}
@@ -789,6 +793,9 @@ int rockchip_monitor_cpu_high_temp_adjust(struct monitor_dev_info *info,
if (!info->high_limit)
return 0;
if (!freq_qos_request_active(&info->max_temp_freq_req))
return 0;
if (info->high_limit_table) {
freq_qos_update_request(&info->max_temp_freq_req,
info->high_limit / 1000);
@@ -809,6 +816,9 @@ EXPORT_SYMBOL(rockchip_monitor_cpu_high_temp_adjust);
int rockchip_monitor_dev_low_temp_adjust(struct monitor_dev_info *info,
bool is_low)
{
if (!dev_pm_qos_request_active(&info->dev_max_freq_req))
return 0;
if (!info->low_limit)
return 0;
@@ -826,6 +836,9 @@ EXPORT_SYMBOL(rockchip_monitor_dev_low_temp_adjust);
int rockchip_monitor_dev_high_temp_adjust(struct monitor_dev_info *info,
bool is_high)
{
if (!dev_pm_qos_request_active(&info->dev_max_freq_req))
return 0;
if (!info->high_limit)
return 0;
@@ -1082,6 +1095,9 @@ rockchip_system_monitor_freq_qos_requset(struct monitor_dev_info *info)
int max_default_value = FREQ_QOS_MAX_DEFAULT_VALUE;
int ret;
if (!info->devp->data)
return 0;
if (info->is_low_temp && info->low_limit)
max_default_value = info->low_limit / 1000;
else if (info->is_high_temp && info->high_limit)
@@ -1399,6 +1415,9 @@ rockchip_system_monitor_register(struct device *dev,
if (!system_monitor)
return ERR_PTR(-ENOMEM);
if (!devp)
return ERR_PTR(-EINVAL);
info = kzalloc(sizeof(*info), GFP_KERNEL);
if (!info)
return ERR_PTR(-ENOMEM);
@@ -1440,11 +1459,15 @@ void rockchip_system_monitor_unregister(struct monitor_dev_info *info)
up_write(&mdev_list_sem);
if (info->devp->type == MONITOR_TPYE_CPU) {
freq_qos_remove_request(&info->max_temp_freq_req);
freq_qos_remove_request(&info->min_sta_freq_req);
freq_qos_remove_request(&info->max_sta_freq_req);
if (freq_qos_request_active(&info->max_temp_freq_req))
freq_qos_remove_request(&info->max_temp_freq_req);
if (freq_qos_request_active(&info->min_sta_freq_req))
freq_qos_remove_request(&info->min_sta_freq_req);
if (freq_qos_request_active(&info->max_sta_freq_req))
freq_qos_remove_request(&info->max_sta_freq_req);
} else {
dev_pm_qos_remove_request(&info->dev_max_freq_req);
if (dev_pm_qos_request_active(&info->dev_max_freq_req))
dev_pm_qos_remove_request(&info->dev_max_freq_req);
}
kfree(info->low_temp_adjust_table);
@@ -1634,6 +1657,11 @@ static void rockchip_system_status_cpu_limit_freq(struct monitor_dev_info *info,
{
unsigned int target_freq = 0;
if (!freq_qos_request_active(&info->min_sta_freq_req))
return;
if (!freq_qos_request_active(&info->max_sta_freq_req))
return;
if (status & SYS_STATUS_REBOOT) {
freq_qos_update_request(&info->max_sta_freq_req,
info->reboot_freq);