drivers/thermal/dummy: Add another passive cooling device

For case that CPUFreq was not enabled.

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

drivers/thermal/thermal_dummy.c

@@ -138,6 +138,13 @@ static const struct thermal_zone_map_s g_dummy_maps[] =
     .high   = 2,
     .weight = 20
   },
+  {
+    .trip_name = "cpu_alert0",
+    .cdev_name = "passive_dev",
+    .low    = THERMAL_NO_LIMIT,
+    .high   = THERMAL_NO_LIMIT,
+    .weight = 20
+  },
 };
 
 static const struct thermal_zone_params_s g_dummy_params =
@@ -206,6 +213,12 @@ static struct dummy_cpufreq_driver_s g_dummy_cpufreq_driver =
   .table = g_dummy_cpufreq_table,
   .table_len = nitems(g_dummy_cpufreq_table),
 };
+#else
+static struct dummy_cooling_device_s g_dummy_passive =
+{
+  .cur_state = 0,
+  .max_state = 1,
+};
 #endif /* CONFIG_THERMAL_DUMMY_CPUFREQ */
 
 /****************************************************************************
@@ -334,6 +347,14 @@ int thermal_dummy_init(void)
       therr("Dummy cpufreq driver init failed!\n");
       return ret;
     }
+#else
+  cdev = thermal_cooling_device_register("passive_dev", &g_dummy_passive,
+                                         &g_dummy_cooling_ops);
+  if (cdev == NULL)
+    {
+      therr("Register cooling device passive_dev failed!\n");
+      return -ENOTSUP;
+    }
 #endif /* CONFIG_THERMAL_DUMMY_CPUFREQ */
 
   /* Cooling Device */