power: Disable boost_sync driver

Set /dev/cpuctl/apps/cpu.notify_on_migrate to zero and leave it at zero.

Results in measurable current drain savings for a variety of usecases.

Change-Id: Ie654bb9143133641e5c3b77f69677e4a4f609f76

1 files changed, 0 insertions, 32 deletions

diff --git a/power/power_shamu.c b/power/power_shamu.c
index 3090483d..6beeef95 100644
--- a/power/power_shamu.c
+++ b/power/power_shamu.c
@@ -65,34 +65,6 @@ static void power_init(__attribute__((unused)) struct power_module *module)
     socket_init();
 }
 
-static void sync_thread(int off)
-{
-    int rc;
-    pid_t client;
-    char data[MAX_LENGTH];
-
-    if (client_sockfd < 0) {
-        ALOGE("%s: boost socket not created", __func__);
-        return;
-    }
-
-    client = getpid();
-
-    if (!off) {
-        snprintf(data, MAX_LENGTH, "2:%d", client);
-        rc = sendto(client_sockfd, data, strlen(data), 0,
-            (const struct sockaddr *)&client_addr, sizeof(struct sockaddr_un));
-    } else {
-        snprintf(data, MAX_LENGTH, "3:%d", client);
-        rc = sendto(client_sockfd, data, strlen(data), 0,
-            (const struct sockaddr *)&client_addr, sizeof(struct sockaddr_un));
-    }
-
-    if (rc < 0) {
-        ALOGE("%s: failed to send: %s", __func__, strerror(errno));
-    }
-}
-
 static void coresonline(int off)
 {
     int rc;
@@ -160,11 +132,9 @@ static void process_video_encode_hint(void *metadata)
     if (metadata) {
         if (!strncmp(metadata, STATE_ON, sizeof(STATE_ON))) {
             /* Video encode started */
-            sync_thread(1);
             enc_boost(1);
         } else if (!strncmp(metadata, STATE_OFF, sizeof(STATE_OFF))) {
             /* Video encode stopped */
-            sync_thread(0);
             enc_boost(0);
         }  else if (!strncmp(metadata, STATE_HDR_ON, sizeof(STATE_HDR_ON))) {
             /* HDR usecase started */
@@ -253,10 +223,8 @@ static void power_set_interactive(__attribute__((unused)) struct power_module *m
     ALOGV("%s %s", __func__, (on ? "ON" : "OFF"));
     if (on) {
         coresonline(0);
-        sync_thread(0);
         touch_boost();
     } else {
-        sync_thread(1);
         coresonline(1);
     }
 }