diff --git a/broadcastradio/2.0/ITunerCallback.hal b/broadcastradio/2.0/ITunerCallback.hal
index ede8350..b20a0b2 100644
--- a/broadcastradio/2.0/ITunerCallback.hal
+++ b/broadcastradio/2.0/ITunerCallback.hal
@@ -17,12 +17,14 @@
 
 interface ITunerCallback {
     /**
-     * Method called by the HAL when a tuning operation fails
+     * Method called by the HAL when a tuning operation fails asynchronously
      * following a step(), scan() or tune() command.
      *
-     * @param result OK if tune succeeded;
-     *               TIMEOUT in case of time out.
-     * @param selector A ProgramSelector structure passed from tune(),
+     * This callback is only called when the step(), scan() or tune() command
+     * returned OK at first.
+     *
+     * @param result TIMEOUT in case of time out.
+     * @param selector A ProgramSelector structure passed from tune() call;
      *                 empty for step() and scan().
      */
     oneway onTuneFailed(Result result, ProgramSelector selector);
diff --git a/broadcastradio/2.0/types.hal b/broadcastradio/2.0/types.hal
index a9b9600..1ce61df 100644
--- a/broadcastradio/2.0/types.hal
+++ b/broadcastradio/2.0/types.hal
@@ -351,10 +351,16 @@
      * related content (i.e. DAB soft-links). This field is a list of pointers
      * to other programs on the program list.
      *
-     * Please note, that these identifiers does not have to exist on the program
+     * This is not a list of programs that carry the same content (i.e.
+     * DAB hard-links, RDS AF). Switching to programs from this list usually
+     * require user action.
+     *
+     * Please note, that these identifiers do not have to exist on the program
      * list - i.e. DAB tuner may provide information on FM RDS alternatives
      * despite not supporting FM RDS. If the system has multiple tuners, another
      * one may have it on its list.
+     *
+     * This field is optional (can be empty).
      */
     vec<ProgramIdentifier> relatedContent;
 
diff --git a/current.txt b/current.txt
index dc5f2ee..b327d6a 100644
--- a/current.txt
+++ b/current.txt
@@ -250,6 +250,8 @@
 c8bc853546dd55584611def2a9fa1d99f657e3366c976d2f60fe6b8aa6d2cb87 android.hardware.thermal@1.1::IThermalCallback
 
 # ABI preserving changes to HALs during Android P
+eaeb3e4f3237430a7fdc206bffdf844713f5682990b2d49ea24392e15b5d343f android.hardware.broadcastradio@2.0::ITunerCallback
+2804120c1f8522ad15feb7695fe5eece527d399b406c671ea99618194118c316 android.hardware.broadcastradio@2.0::types
 cf72ff5a52bfa4d08e9e1000cf3ab5952a2d280c7f13cdad5ab7905c08050766 android.hardware.camera.metadata@3.2::types
 3902efc42097cba55f0655aa389e052ea70164e99ced1a6d1ef53dafc13f7650 android.hardware.camera.provider@2.4::ICameraProvider
 6fa9804a17a8bb7923a56bd10493a5483c20007e4c9026fd04287bee7c945a8c android.hardware.gnss@1.0::IGnssCallback