V4L/DVB (11178): pvrusb2: Make audio sample rate update into a sub-device broadcast

The pvrusb2 driver had previously been using i2c module specific calls
to set the sample rate (a long long time ago this was needed).  These
days it is safe to use a broadcast so let's just broadcast this when
communicating audio sample rate to sub-devices.

Signed-off-by: Mike Isely <isely@pobox.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

drivers/media/video/pvrusb2/pvrusb2-hdw.c

@@ -2983,6 +2983,26 @@ static void pvr2_subdev_update(struct pvr2_hdw *hdw)
 		v4l2_device_call_all(&hdw->v4l2_dev, 0, video, s_fmt, &fmt);
 	}
 
+	if (hdw->srate_dirty) {
+		u32 val;
+		pvr2_trace(PVR2_TRACE_CHIPS, "subdev v4l2 set_audio %d",
+			   hdw->srate_val);
+		switch (hdw->srate_val) {
+		default:
+		case V4L2_MPEG_AUDIO_SAMPLING_FREQ_48000:
+			val = 48000;
+			break;
+		case V4L2_MPEG_AUDIO_SAMPLING_FREQ_44100:
+			val = 44100;
+			break;
+		case V4L2_MPEG_AUDIO_SAMPLING_FREQ_32000:
+			val = 32000;
+			break;
+		}
+		v4l2_device_call_all(&hdw->v4l2_dev, 0,
+				     audio, s_clock_freq, val);
+	}
+
 	/* Unable to set crop parameters; there is apparently no equivalent
 	   for VIDIOC_S_CROP */
 

drivers/media/video/pvrusb2/pvrusb2-video-v4l.c

@@ -249,24 +249,6 @@ int pvr2_i2c_decoder_v4l_setup(struct pvr2_hdw *hdw,
 
 void pvr2_saa7115_subdev_update(struct pvr2_hdw *hdw, struct v4l2_subdev *sd)
 {
-	if (hdw->srate_dirty) {
-		u32 val;
-		pvr2_trace(PVR2_TRACE_CHIPS, "subdev v4l2 set_audio %d",
-			   hdw->srate_val);
-		switch (hdw->srate_val) {
-		default:
-		case V4L2_MPEG_AUDIO_SAMPLING_FREQ_48000:
-			val = 48000;
-			break;
-		case V4L2_MPEG_AUDIO_SAMPLING_FREQ_44100:
-			val = 44100;
-			break;
-		case V4L2_MPEG_AUDIO_SAMPLING_FREQ_32000:
-			val = 32000;
-			break;
-		}
-		sd->ops->audio->s_clock_freq(sd, val);
-	}
 	if (hdw->input_dirty) {
 		struct v4l2_routing route;
 		const struct routing_scheme *sp;