si4700 tuner: fix power consumption issue caused by ill-defined power state at startup

Change-Id: I657bc7e3d330f436859cfef2a89b0813bc008c49
2012-04-11 23:31:19 +02:00 · 2012-04-11 23:31:19 +02:00 · 73732f406e
commit 73732f406e
parent c45984d5f4
1 changed files with 4 additions and 0 deletions
--- a/firmware/drivers/tuner/si4700.c
+++ b/firmware/drivers/tuner/si4700.c
@ -368,6 +368,10 @@ void si4700_init(void)
    mutex_init(&fmr_mutex);
    /* check device id */
    if (si4700_detect()) {
+        /* make sure the tuner goes into a well-defined powered-off state */
+        si4700_sleep(0);
+        si4700_sleep(1);
+
 #ifdef HAVE_RDS_CAP
        si4700_rds_init();
 #endif