power: Spring cleanup

* Cleanup SoC specific files:
 - Fix code spacing and indentation
 - Remove dead code
 - Remove useless comments
 - Remove useless logs
 - Make code uniform between the files so it's easier to diff
 - Use declared enums when possible for power hints

Change-Id: Ie1378c94c53b33299927c5eb1bfc19f1a42b8743
diff --git a/power-8992.c b/power-8992.c
index 0f02cd6..274adb1 100644
--- a/power-8992.c
+++ b/power-8992.c
@@ -27,6 +27,7 @@
  * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
  * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
+
 #define LOG_NIDEBUG 0
 
 #include <errno.h>
@@ -88,13 +89,14 @@
 };
 
 #ifdef INTERACTION_BOOST
-int get_number_of_profiles() {
+int get_number_of_profiles()
+{
     return 5;
 }
 #endif
 
-static void set_power_profile(int profile) {
-
+static void set_power_profile(int profile)
+{
     if (profile == current_power_profile)
         return;
 
@@ -124,36 +126,34 @@
         perform_hint_action(DEFAULT_PROFILE_HINT_ID, profile_bias_performance,
                 ARRAY_SIZE(profile_bias_performance));
         ALOGD("%s: Set bias perf mode", __func__);
-
     }
 
     current_power_profile = profile;
 }
 
-static int process_video_encode_hint(void *metadata)
+static void process_video_encode_hint(void *metadata)
 {
     char governor[80];
     struct video_encode_metadata_t video_encode_metadata;
 
     if (get_scaling_governor(governor, sizeof(governor)) == -1) {
         ALOGE("Can't obtain scaling governor.");
-
-        return HINT_NONE;
+        return;
     }
 
-    /* Initialize encode metadata struct fields */
+    if (!metadata) {
+        return;
+    }
+
+    /* Initialize encode metadata struct fields. */
     memset(&video_encode_metadata, 0, sizeof(struct video_encode_metadata_t));
     video_encode_metadata.state = -1;
     video_encode_metadata.hint_id = DEFAULT_VIDEO_ENCODE_HINT_ID;
 
-    if (metadata) {
-        if (parse_video_encode_metadata((char *)metadata, &video_encode_metadata) ==
-            -1) {
-            ALOGE("Error occurred while parsing metadata.");
-            return HINT_NONE;
-        }
-    } else {
-        return HINT_NONE;
+    if (parse_video_encode_metadata((char *)metadata,
+            &video_encode_metadata) == -1) {
+        ALOGE("Error occurred while parsing metadata.");
+        return;
     }
 
     if (video_encode_metadata.state == 1) {
@@ -164,19 +164,17 @@
              * above_hispeed_delay - 40ms
              * sched_small_tsk - 50
              */
-            int resource_values[] = {0x2C07, 0x2F5A, 0x2704, 0x4032};
-
+            int resource_values[] = {
+                0x2C07, 0x2F5A, 0x2704, 0x4032
+            };
             perform_hint_action(video_encode_metadata.hint_id,
                     resource_values, ARRAY_SIZE(resource_values));
-            return HINT_HANDLED;
         }
     } else if (video_encode_metadata.state == 0) {
         if (is_interactive_governor(governor)) {
             undo_hint_action(video_encode_metadata.hint_id);
-            return HINT_HANDLED;
         }
     }
-    return HINT_NONE;
 }
 
 static int resources_interaction_fling_boost[] = {
@@ -216,7 +214,6 @@
 
     switch (hint) {
         case POWER_HINT_INTERACTION:
-        {
             duration = 500; // 500ms by default
             if (data) {
                 int input_duration = *((int*)data);
@@ -243,17 +240,14 @@
                         resources_interaction_boost);
             }
             return HINT_HANDLED;
-        }
         case POWER_HINT_LAUNCH:
-        {
             duration = 2000;
-
             interaction(duration, ARRAY_SIZE(resources_launch),
                     resources_launch);
             return HINT_HANDLED;
-        }
         case POWER_HINT_VIDEO_ENCODE:
-            return process_video_encode_hint(data);
+            process_video_encode_hint(data);
+            return HINT_HANDLED;
         default:
             break;
     }
@@ -266,7 +260,6 @@
 
     if (get_scaling_governor(governor, sizeof(governor)) == -1) {
         ALOGE("Can't obtain scaling governor.");
-
         return HINT_NONE;
     }
 
@@ -275,17 +268,17 @@
         if (is_interactive_governor(governor)) {
             // sched upmigrate = 99, sched downmigrate = 95
             // keep the big cores around, but make them very hard to use
-            int resource_values[] = { 0x4E63, 0x4F5F };
+            int resource_values[] = {
+                0x4E63, 0x4F5F
+            };
             perform_hint_action(DISPLAY_STATE_HINT_ID,
                     resource_values, ARRAY_SIZE(resource_values));
-            return HINT_HANDLED;
         }
     } else {
         /* Display on */
         if (is_interactive_governor(governor)) {
             undo_hint_action(DISPLAY_STATE_HINT_ID);
-            return HINT_HANDLED;
         }
     }
-    return HINT_NONE;
+    return HINT_HANDLED;
 }