Thermal: Add procfs file nodes

Signed-off-by: wangjianyu3 <wangjianyu3@xiaomi.com>

Author: JianyuWang0623

drivers/thermal/Kconfig

@@ -30,4 +30,11 @@ config THERMAL_CDEV_CPUFREQ
 	---help---
 		Enable thermal cpufreq cooling device.
 
+config THERMAL_PROCFS
+	bool "Thermal PROCFS support"
+	default n
+	depends on FS_PROCFS
+	---help---
+		Enable thermal procfs.
+
 endif # THERMAL

drivers/thermal/Make.defs

@@ -32,6 +32,10 @@ ifeq ($(CONFIG_THERMAL_CDEV_CPUFREQ),y)
 CSRCS += thermal_cpufreq_cooling.c
 endif
 
+ifeq ($(CONFIG_THERMAL_PROCFS),y)
+CSRCS += thermal_procfs.c
+endif
+
 DEPPATH += --dep-path thermal
 VPATH += thermal
 

drivers/thermal/thermal_core.c

@@ -741,6 +741,10 @@ thermal_zone_device_register(FAR const char *name,
       device_bind(zdev, cdev);
     }
 
+#ifdef CONFIG_THERMAL_PROCFS
+  thermal_zone_procfs_register(zdev);
+#endif
+
   nxmutex_unlock(&g_thermal_lock);
 
   thinfo("Registered zone device %s\n", zdev->name);
@@ -780,6 +784,11 @@ void thermal_zone_device_unregister(FAR struct thermal_zone_device_s *zdev)
     }
 
   list_delete(&zdev->node);
+
+#ifdef CONFIG_THERMAL_PROCFS
+  thermal_zone_procfs_unregister(zdev);
+#endif
+
   zone_set_governor(zdev, NULL);
   kmm_free(zdev);
   nxmutex_unlock(&g_thermal_lock);

drivers/thermal/thermal_core.h

@@ -82,4 +82,11 @@ int thermal_zone_get_trip_hyst(FAR struct thermal_zone_device_s *zdev,
 
 int thermal_register_step_wise_governor(void);
 
+/* ProcFS */
+
+#ifdef CONFIG_THERMAL_PROCFS
+int thermal_zone_procfs_register(FAR struct thermal_zone_device_s *zdev);
+void thermal_zone_procfs_unregister(FAR struct thermal_zone_device_s *zdev);
+#endif
+
 #endif /* __DRIVERS_THERMAL_THERMAL_CORE_H */