power: Find online CPU core and get scaling governor

Change-Id: I90aed1aaee8d3819d1de921674da924efd0a6c4f

1 files changed, 12 insertions, 13 deletions

diff --git a/utils.c b/utils.c
index ec9d1e8..295b7dd 100644
--- a/utils.c
+++ b/utils.c
@@ -46,10 +46,14 @@
 #define SOC_ID_0 "/sys/devices/soc0/soc_id"
 #define SOC_ID_1 "/sys/devices/system/soc/soc0/id"
 
-const char* scaling_gov_path[4] = {"/sys/devices/system/cpu/cpu0/cpufreq/scaling_governor",
+const char* scaling_gov_path[8] = {"/sys/devices/system/cpu/cpu0/cpufreq/scaling_governor",
                                    "/sys/devices/system/cpu/cpu1/cpufreq/scaling_governor",
                                    "/sys/devices/system/cpu/cpu2/cpufreq/scaling_governor",
-                                   "/sys/devices/system/cpu/cpu3/cpufreq/scaling_governor"};
+                                   "/sys/devices/system/cpu/cpu3/cpufreq/scaling_governor",
+                                   "/sys/devices/system/cpu/cpu4/cpufreq/scaling_governor",
+                                   "/sys/devices/system/cpu/cpu5/cpufreq/scaling_governor",
+                                   "/sys/devices/system/cpu/cpu6/cpufreq/scaling_governor",
+                                   "/sys/devices/system/cpu/cpu7/cpufreq/scaling_governor"};
 
 #define PERF_HAL_PATH "libqti-perfd-client.so"
 static void* qcopt_handle;
@@ -170,19 +174,14 @@ int sysfs_write(const char* path, char* s) {
 }
 
 int get_scaling_governor(char governor[], int size) {
-    if (sysfs_read(SCALING_GOVERNOR_PATH, governor, size) == -1) {
-        // Can't obtain the scaling governor. Return.
-        return -1;
-    } else {
-        // Strip newline at the end.
-        int len = strlen(governor);
-
-        len--;
-
-        while (len >= 0 && (governor[len] == '\n' || governor[len] == '\r')) governor[len--] = '\0';
+    for (size_t i = 0; i < ARRAY_SIZE(scaling_gov_path); i++) {
+        if (get_scaling_governor_check_cores(governor, size, i) == 0) {
+            // Obtained the scaling governor. Return.
+            return 0;
+        }
     }
 
-    return 0;
+    return -1;
 }
 
 int get_scaling_governor_check_cores(char governor[], int size, int core_num) {